Optical information recording medium

24-12-2003 дата публикации
Номер:
CN0001132168C
Принадлежит: Taiyo Yuden Co Ltd
Контакты:
Номер заявки: 08-06-9911
Дата заявки: 19-07-1999

[1]

The invention in particular with regard to the short wavelength field DVD-R the laser to the recording and reproducing rewriting heat-mode optical information recording medium.

[2]

Recording, reproducing text, graphics or the like, or Image data such as Image or sound means, corresponding to the wavelength as 770-830nm laser recording and reproducing of the recording material, for example comprising five methylidyne Department recording layer of the optical disk is known CD-R, however, at present, for example, can use a shorter wavelength 620-690nm the red laser DVD-R high-density recording and regeneration (Digital, video, disc   record   double   double   record or digital   versatile disc), such as used as a medium.

[3]

As this kind of DVD-R, in hopes evenly especially 9-251487 of the specification using the specific disclosed in three methylidyne Department recording layer of the optical information recording medium.

[4]

However, with respect to the above-mentioned specification with the indole link linkage shown in the benzene ring or a naphthalene ring having three methylidyne Department, when the substituent of the benzene ring or a naphthalene ring nitro of does not include the hydrogen atom and the like, containing the pigment with the optical interference pigment of the absorption spectrum as shown in Figure 1, the pigment molecule based on and the interaction between the associative function to secondary wave crest b absorb attracting luminosity h2 pigment molecule relative to the spectral band due to absorption by the pigment molecule itself is formed of a main peak of the absorbance h1 who are too large, therefore by these main wave crest and a wave crest b of the folded spectrum will not form, and the display the tip sharpness of the half-value width of the spectrum of d (the main peak a and the crest b the form of spectrum regarding h1/2 of the width of the absorbance) also can not be reduced.

[5]

If the above-mentioned, when the spectrum is unable to form folded, to illuminate the laser interference layer yu Guang the recording sensitivity to form a groove, that is, the film thickness of the optical interference unit can not be increased absorbance, it is therefore necessary to make the pigment thickness-increased, the recording power is increased, or lowering the recording speed, because of the groove and the groove is easy to produce between the heat storage of the rills the deformation is easy to be caused by the thermal interference referred to, thereby affecting the regulating system or the characteristics of the vibration (Jitter).

[6]

Article of the present invention 1 provide at the DVD regarding for recording with a short wavelength laser can be improved with the absorption wave crest of the pigment molecule associative its molecule associative the wave crest ratio of the optical interference layer of the optical information recording medium.

[7]

Paragraph of this invention 2 provide regarding at short wavelength laser of the DVD can be obtained good recording sensitivity, a relatively thin optical interference film thickness of the optical information recording medium.

[8]

Paragraph of this invention 3 regarding at recording DVD provided for the purposes of the short-wavelength laser light, or vibration is excellent in properties such as the modulation of the optical information recording medium.

[9]

Paragraph of this invention 4 provides regarding purpose of recording DVD for the purposes of the short-wavelength laser light, the recording power is low, capable of high-speed recording of the optical information recording medium.

[10]

The inventors in order to solve the above-mentioned problem and carefully of the results of the study found that in particular for recording DVD regarding the short-wavelength laser in the pigment with the indole link linkage on the benzene ring or naphthalene ring having a nitro group on the substituent three methylidyne Department optical interference layer as shown in Figure 1, secondary wave peak-to-main peak is low, and can make the main wave crest and a wave crest the folded spectrum of form, so as to end the invention.

[11]

Therefore, this invention is to offer a kind of optical information recording medium, system (1) on the substrate containing pigment optical interference with the optical information recording medium, the pigment contains the following general formula [turn 1] indicated that ter methylidyne Department, the optical interference layer may be used is selected from the wavelength 620 nm -690 nm laser wavelength field for recording and reproducing.

[12]

(Process 1)

[13]

[A, however, that the following general formula [turn 2]-[ the 5] in any one of, [turn 2] [Process 3] [Process 4] [Process 5] A ' is expressed the following general formula [turn 6]-[ turn 9] any one of the, [process 6] [Process 7] [Process 8] [Process 9]

[14]

With A A 'series can be the same or different (but M, n as the substituent of the number, are respectively 1 or a plurality of integer), R, R' is selected from the substituted or non-substituted alkyl, carboxy, alkoxy carbonyl, alkyl carboxyl, alkoxy, alkyl hydroxy, aralkyl, alkenyl, alkyl amido, alkylamine base, alkyl sulfonamide-based, alkylamine base formoxyl, alkylamine sulfonyl, hydroxy, a halogen atom, alkyl alkoxy, alkyl halide, alkyl sulfonyl, bonded with the metal ion or the alkyl carboxyl or alkylsulfonyl, phenyl, benzyl, alkyl phenyl and phenoxy alkyl (can use alkyl, carboxyl, hydroxy, a halogen atom or the like; metal ion, other than the substituent substituted benzene ring part and/or the alkyl portion of the hydrogen atom, the aforesaid phenyl, benzyl, alkyl phenyl of the part is also the same) substituent of the group, can be the same or different, X- is selected from a halogen atom, PF6-, SbF4-, phosphoric acid, perchloric acid, boron fluorizating hydracids, benzene sulfonic acid, toluene sulfonic acid, alkyl sulfonic acid, benzene monocarboxylic acid , alkyl carboxylic acid, trifluoro methyl carboxylic acid, periodate, SCN-, four phenylo boric acid and an anion of the tungstate anion group]

[15]

The invention relates to (2) to provide the above-mentioned (1) the optical information recording medium, wherein the pigment in addition to the above-mentioned general formula [turn 1] ter methylidyne Department outer, also contains other pigment, and the pigment contains at least 50 weight % of the general formula [turn 1] ter methylidyne Department. (3) provides such as the above-mentioned (1) or (2) the optical information recording medium, wherein the optical interference layer contains a metal coordination compound.

[16]

Optical interference layer of this invention can be the wavelength 620 nm -690 nm laser wavelength field of carrying out recording and reproducing, the optical interference layer may use in DVD-R.

[17]

Optical interference layer system of this invention by the organic pigment material of the pigment, other organic material or inorganic material layers motherland, comprising forming the groove by laser irradiation can be one single layer or multi-layer of the recording layer pigment of; also includes in addition to the recording layer of the optical information recording medium for adjusting optical properties the purpose of adjusting the refractive index, such as the resin material of the film thickness of the reinforcing layer; and then, interlayer and the base plate, when the pigment is a multi-layer, the intermediate layer, and the like arranged therebetween. For these recording layer optical interference as referred to.

[18]

The pigment contains the above-mentioned general formula [turn 1] indicated that ter methylidyne Department, the pigment can be cited in the general formula of, for example, as the arbitrary A selected from the above-mentioned general formula [turn 2]-[ the 5] general type, A ' to arbitrary selected from the above-mentioned general formula [turn 6]-[ turn 9] type one of, and respectively after selecting the respective combined compounds. For example, general formula [turn 2] and general formula [turn 6]-[ turn 9] the combined, other general formula [turn 3]-[ the 5] also the same. A, A ' substituent of (NO2) m, (NO2) n of m, n is at least 1, is an integer of 2 or more integer. These pigments can be used singly or a plurality of and use.

[19]

Having three methylidyne Department (with the indole ring of benzene ring or naphthalene ring is provided with a nitro-substituted base) of the laser light is irradiated on the optical interference layer, the wavelength of the laser to the previous spectrum use chart absorbance of 1 when the sign of the said, can make the main and secondary wave b A than luminosity attracting h2/h1 to 0.8 the following, and by the main peak A and the secondary wave crest b of the half-value width of the spectrum of d to 100 nm the following. The use of other substituent such as a hydrogen atom or the like to replace the above-mentioned general formula [turn 1] A in, A ' of the nitro substituent, the above absorbance than h2/h1 is at least 0.8 or more, cannot be reduced to 0.8 the following, the spectrum of the half-value width is at least d 100 nm to not more than 100 nm the following.

[20]

As indicated above, three methylidyne Department of the indole ring is bonded on the benzene ring or naphthalene ring crest narrow into the nitro the time, the main peak and the second peak of the spectrum is sharp (Sharp), increasing light interference film thickness increased absorbance of the units, to improve the recording efficiency, in other words to improve recording sensitivity. Improvement in the recording sensitivity, even if the optical interference film thickness thinner than in the past, for example a maximum of 70 nm thick, that is, 70 nm the following can also be the modulation degrees in accordance with the specifications of the now, because of the relatively thin film thickness at the same time can also inhibit the recording of the land of the groove, can be restrained by the heat-storing the rills deformation, that is, the so-called thermal interference phenomenon, and good vibration characteristics.

[21]

Good recording sensitivity, good modulation degree or vibration, and the like when the characteristic, the recording power can be reduced, or improve the recording speed.

[22]

On the optical interference of the present invention can be set up and in addition to the above-mentioned general formula [turn 1] ter methylidyne Department of other pigment or more of the same pigment or other pigment, the pigment to make the above-mentioned general formula [turn 1] ter methylidyne Department mixing at least 50 weight %, that is, to form a mixed 50 weight % when the above is mixed, or a characteristic of the vibration adjusting system than when the above-mentioned other pigment are not mixed well, but can still meet the above-mentioned specification.

[23]

The above-mentioned other pigment for example have the following general formula [turn 10] three that expressed methylidyne Department.

[24]

[Process 10]

[25]

[But B is expressed the following general [turn 11]-[ turn 14] any one in], [turn 11] [Process 12] [Process 13] [Process 14] B ' is expressed the following general formula [turn 15]-[ turn 18] of any one of a, [turn 15] [Turn 16] [Turn 17] [Turn 18]

[26]

With B B ' can be the same or different (but D1, D2 is respectively selected from a hydrogen atom, alkyl, alkoxy, hydroxy, halogen, carboxy, alkoxy carbonyl, alkyl carboxyl, alkyl hydroxy, aralkyl, alkenyl, alkyl amido, alkylamine base, alkyl sulfonamide-based, alkyl carbamoyl, alkylamine sulfonyl, alkyl sulfonyl, phenyl, cyano, ester, nitro, acyl, allyl, aryl, aryloxy, alkyl thio, aryl thio, phenyl-azo group, pyridine azo group, alkane carbonyl amino group, sulfonamide group, amino, alkyl sulphonic, thiophosphoro cyano, mercapto, chlorosulfonic acid-based, alkyl partner nitrogen time methyl, alkylamino sulfo, vinyl and sulfo the groups of substituents, can be the same or different, p, q as the substituent of the number, are respectively expressed 1 or the majority of the integer (but does not include D1, D2 at the same time selecting only the situation of nitro-group)). R, R ' series with the above-mentioned general formula [turn 1] the same].

[27]

This general formula [turn 10] in, as the arbitrary B selected from the above-mentioned general formula [turn 11]-[ turn 14] one, B ' to arbitrary selected from the above-mentioned general formula [turn 15]-[ turn 18] of one, and the two selected all the compounds of the combination. For example, some general formula [turn 11] the general formula [turn 15]-[ turn 18] the combined, and other general formula [turn 12]-[ turn 14] also the same. B, B ' substituent of (D1) p, (D2) q the p, q is at least 1, the majority of the integer, in other words 2 integer of the above.

[28]

The above-mentioned general formula [turn 1], [turn 11] the process for the synthesis of pigment that expressed can be utilized   of   Vol   Dyes   Synthetic The Chemistry   14 method of the record.

[29]

The above-mentioned general formula [turn 1] the three methyl series cyanine pigment or other pigment can be to use only those pigment, but in order to improve the light fastness, pigment or other layer as light stabilizer containing the metal coordination compound.

[30]

This kind of metal coordination compounds are, for example, has the following general formula [turn 19] compound that expressed. [Turn 19]

[31]

[Wherein R1, R2 is respectively expressed SO2 R3 (but R3 [turn 20] the following train expressed), [turn 20] A halogen atom, phenyl, alkyl, cyano, alkyl sulfide, alkyl sulfonyl, r, that s is 1-4 the integer, R4 is alkyl, Y is expressed N or P, is expressed cu M, Co or metal such as Ni.

[32]

The above-mentioned general formula [turn 19] of the specific compound in addition to an implementation latter statesexample showing , for example with the following [turn 21], [turn 22] compound. [Turn 21] [Turn 22]

[33]

Simple explanation of the Figure

[34]

[Fig. 1] that the system of this invention comprising supporting the above-mentioned general formula [turn 1] ter methylidyne Department (Yu the above-mentioned general formula [turn 10] the pigment) the pigment of a light interference layer of the graph of the absorption spectrum.

[35]

[Chart 2] of this invention is that the supporting-containing the above-mentioned general formula [turn 1] an example of a pigment of the pigment of the map of absorption spectrum of the optical interference.

[36]

[Fig. 3] is that the supporting of the invention containing the above-mentioned general formula [turn 1] of other example of a pigment of the pigment of the map of absorption spectrum of the optical interference.

[37]

[Fig. 4] is that the supporting of the invention and the above-mentioned general formula [turn 1] the pigment (and Figure 3 the same pigment) and supporting the above-mentioned general formula [turn 10] the pigment of the pigment of the map of absorption spectrum of the optical interference.

[38]

[Figure 5] by the containing azo pigment is pigment of the optical interference layer of the graph of the absorption spectrum.

[39]

Manufacturing of the present invention when the optical information recording medium, system modulation the above-mentioned general formula [turn 1] green that expressed, or these pigment and the above-mentioned general formula [turn 10] other pigment green that expressed the mixed pigment to be dissolved (wherein the former mixing 50 ideal weight % or more), or the above-mentioned general formula [turn 19] expressed the metal coordination compound dissolved in the above-mentioned pigment solution, coating then on the substrate has transparency to light. These the pigment solution can be using chloroform, dichloroethane, Fluoridize as fluorine-based solvent, methyl ethyl ketone, dimethyl formamide, methanol, toluene, cyclohexanone, acetyl acetone, diacetone alcohol, methyl-soluble filament element class as lignocellulose, dioxane, and the like. At this moment an ideal mixing ratio of green to 1 weight %-10% by weight.

[40]

The invention uses the substrate for example a glass or epoxy resin, methacrylic resin, polycarbonate resin, polyester resin, poly vinyl chloride resin, polyolefin resin or the like, plastic. The track can be formed on this base plate ditch or rills, can also be provided with the address signal of signal are required.

[41]

The above-mentioned green using rotary coating solution coating that is on the base plate. At this time the doors dry the thickness of the coating layer can also be used the thickness of the used in the past.

[42]

The optical interference layer can contain the above-mentioned metal coordination compound other than evanishment medicinal preparation singlet oxygen, the light absorbent, free base capture the compounds of the other agent.

[43]

In addition to the above-mentioned light interference layer can be provided with reflecting layer, the reflecting layer can be provided with a protective layer, and then, in the real estate (incident laser) can also be provided with a protective layer.

[44]

A reflective layer can cite, for example, by vapor deposition, sputtering, and the like formed by Au, Al, Ag, cu, Pt, these other alloy, these adding a trace component of a metal alloy of high reflectance material film or the like, the protective layer can be cited for example in order to protect the optical information recording medium, and improve the weather resistance and other, and in order to rotate the coating method and the like to the coated ultraviolet hardening resin solution of radiation hardening resin, radiation hardening of the coating layer.

[45]

Can be obtained as described above is arranged on the base plate containing pigment optical interference layer, the reflecting layer, a further optical disk or the like, is provided with a protective layer. Can be also contains at least one other layer of this optical interference or other form is the same as the optical disc to be bonded, or make the base plate relative to the paste.

[46]

This attaching material, methods are useful, for example, using the ultraviolet ray hardening resin, cationic hardening resin, two-side adhesive sheet, heat-melting method, rotary coating method, dispersion method (extruding method), screen printing, roller coating mode and the like.

[47]

Detailed description according to the following embodiment, uses a track pitch is 0.74 the  m (can be 0.80 the  m), with only the vibration signal (wobble) (can also be at the same time with preset rills signal) of the polycarbonate substrate, the use of supporting optical interference pigment of the above-mentioned general formula [turn 1] of the compounds, (1) the above-mentioned general formula [turn 2] and general formula [turn 6] the combination of the pigment formed by the, m (2) in particular, at the same time n 1 pigment ; (3) R, R ' is the same, to carbon number 8 as the center of the non-branched chain alkyl or alkyl phenyl pigment (lower alkyl), (4), in particular X-is perchloricacid the anionic pigment of the pigment ([...]) aminoiso of three methylidyne Department, modulation of the pigment solution, and Yu (1)-(4) of various pigment and supporting the above-mentioned general formula [turn 19], and R3 to [turn 20] a solution of metal complex, but also these pigment solution to add supporting in the above-mentioned general formula [turn 10] of the compounds, (5) by the above-mentioned general formula [turn 11] the general formula [turn 16] the pigment into the combination of, (6) in particular D1, D2 of the hydrogen atom at the same time the pigment, (7) R, R2 not the same, and the carbon number 3, 4 or the like, the pigment lower alkyl group ; (8) in particular, the anion X- for iodine aminoiso pigment of the pigment, the above-mentioned supporting modulation of (5)-(8) the solution of the pigment. The above-mentioned (1)-(4) the pigment pigment accounts for the integral 60-70 parts by weight. The use of these solution can be formed by the rotary coating method of film thickness is dry 50-70nm of optical interference pigment. At this moment the optical interference layer as shown in Figure 1 of the absorption spectrum of the absorption wave crest than absorbance h2/h1 to at most 0.8, in other words can be in the 0.8 the following, the ideal 0.6-0.75, the main wave crest and a wave crest b of the width of the spectrum of the half height d is at most 100 nm, that is, 100 nm the following, an ideal to 80 nm -100 nm. then or Au is Al using sputtering of a reflecting layer, by the rotary coating method on the formed by the ultraviolet ray hardening resin of the protective layer is, the more the one-step coating is composed of an ultraviolet hardening resin is a polycarbonate substrate of the factory production, get-surface optical disk.

[48]

Irradiated on the optical disk above prepared 620-690nm laser recording, the system can be improved, the characteristics of vibration, and the like, and in addition to using the above-mentioned (5)-(8) supporting the pigment to replace the above-mentioned general formula [turn 1] of (1)-(5) pigment prepared the same as the when compared to the optical disk, the recording power can be reduced, or for the same recording power of the recording speed can be improved.

[49]

[Embodiment]

[50]

Embodiment 1

[51]

By injection molding a wide formed on the surface the 0.32  M, depth 100 nm, 0.74 the distance between the spiral group   M by the thickness of 0.6 mm, the outer diameter (diameter) of 120 mm φ a polycarbonate the transparent substrate.

[52]

Secondly in order to weight ratio of the 95 [...] 5 mixing the following [turn 23] the three shown methylidyne Department NK-2084 (Japan photosensitive pigment research systems) and in the following [chemical 24] metal complexes that expressed the light stabilizing agent, dissolving the mixture in Fluoridize such as 2, 2, 3, 3-tetrafluoro-1-propanol (Tokyo chemical Company system, hereinafter referred to as TFP) become 3% by weight, the solution is coated in the surface of the base plate in order to rotate, is formed by the film thickness 60 nm of the photosensitive pigment film optical interference layer. [Turn 23] [Turn 24]

[53]

In/U-4000 visible ultraviolet spectrophotometer (Hitachi the manufacture makes (strain)) measuring the optical interference layer its absorption spectrum [absorbance (AbS) the wavelength 400-800nm wavelength dependence of] is as shown in Figure 2 the spectrum. The main peak of the secondary wave crest than absorbance (and Figure 1 the absorbance ratio h2/h1 corresponding) is 0.74, the half-value width of the spectrum (and the main peak and the second peak the form of the spectrum to Figure 1 the h1/h2 corresponding to the width d) for 96 nm.

[54]

In this optical interference by the base plate on the 44mm φ-117 mm φ by the sputtering method, a film thickness of 80 nm of film AU, form a reflection layer.

[55]

Rotary coating on the reflective layer SD-211 ultraviolet hardening resin (Dainippon ink chemical industrial Company system), the coating film hardened ultraviolet ray is irradiated on the film thickness of the 5   M the protective film.

[56]

And then, the ultraviolet ray hardening resin SD-318 (Dainippon ink chemical industrial corporate) drips into the base plate and protective film forming the protective film on the optical interference, then formed by the same method for the other base plate place , by the rotary coating method to the resin to the gap-doors, the substrate side by overlapping the hardened ultraviolet ray is irradiated, of the substrate in the field 32mm φ-120 mm φ formed by resin of a thickness of 25 the of   M coherence level , duplication substrate laminate, made-surface optical disk.

[57]

According to NA (aperture ratio) =0.6 (numerical   aperture) of the laser wavelength =635nm DDU-1000 of (the linear speed of the Company in order to emboss Pulsetex 3.5M/seconds recorded on the optical disk in the belting, and then to Yokogawa motor corporate time interval analyzer/TA-320 measuring vibration.  Disc   Specification   Read-only according to the DVD specifications   for, Data   Clock Jitter means   to to channel bit speed = 26.6mbps (38.23n   SE   c) as the reference clock pulse, the edge signal of the two-value information form σ standardization the deviation value. Anent Jitter reference to the evaluation of the most small rills length of the 0.4  m, the linear speed of the belting 3.5M/sec the EFM signal is modulated. When the clock pulse normalized to, and then, in order to make the signal error is not delayed, 9% for its limit, ideal to 8.5% the following, the highest also other not more than 8.5% is ideal.

[58]

Also the use of wavelength 650 nm laser measuring recording doors of the modulation degree I14/Itop Itop HF (EFM) signal to the maximum amount, and almost I14 the maximum reflection of the same. I14 is recording is recorded in the group is the largest in the long groove, is diffraction return non-groove departmentlight quantity the objective lens and the lens of the light reflected and return the quantity of the signal optical modulation component.

[59]

The belting W.O.M. (Weather-ometer) the optical disc of the light-resistant test. The assay conditions is to use dongyang of the stool seisakusho systems Atolas   weather-ometer C135A, the temperature of the 30 [...] , humidity 70-80% RH under the atmosphere, the causes the xenon 6.5k w principal surface of the light irradiated through the disk 80 hours, find the doors before the test of the above-mentioned modulation degree (I14/Itop), and compare.

[60]

The results of the above-mentioned every measured value shown in table l. Table specification value of said.

[61]

This implementation disclosed burners using the above-mentioned general formula [turn 1] in, A, A 'at the same time with one nitro group to the benzene ring, R, R' with the same carbon number of 8 alkyl of three methylidyne Department example, can be by wavelength 635 nm laser recording and the wavelength 650 nm laser regeneration, modulation degree is high, and Jitter is not high. Doors before the test by the light that the excellent light resistance adjusting system. Embodiment 2

[62]

In addition to using the above-mentioned general formula [turn 1] of the [turn 25] the following three methylidyne Department substituted embodiment 1 ter methylidyne Department NK-2084 outer, with the embodiment of the remaining 1 of the pigment is a method for optical interference making optical disc and according to the following steps, with the embodiment 1 of the method to determine the results of the optical interference as shown in Figure 3, table 1 shows, the same of the previous embodiment of the optical disc 1 recorded, determination results as shown in table 1 is shown.

[63]

This example embodiment of the optical disk 1 of the pigment used in the above-mentioned general formula [turn 1] R in, R ' to the same phenyl ethyl differences, but can be by wavelength 635 nm and can be recorded of laser light of the wavelength 650 nm laser for regeneration, Jitter is not high, an embodiment of modulation also somewhat overmatch 1. [Turn 25]

[64]

Embodiment 3

[65]

Groups in addition to the 60 [...] the 35 [...] 5 embodiment of use 1 ter methylidyne Department NK -2084, in the following [chemical 26] three that expressed methylidyne Department NK-4370 (Japan photosensitive pigment research systems) and metal complex compounds, with the embodiment 1 is the same as the pigment manufacturing a optical interference and latter states steps the production of compact discs, with the embodiment 1 the measurement optical interference layer results as shown in fig. 4, table 1 shows, the same of the previous embodiment of the optical disc 1 recorded, determination results as shown in table 1 is shown. [Turn 26]

[66]

This embodiment of the optical disk is to use mixed (weight ratio of the 60 [...] 35) supporting the above-mentioned general formula [turn 1] ter methylidyne Department NK-2084 and supporting the above-mentioned general formula [turn 10] the above-mentioned three methylidyne Department NK-4370 example, can be by wavelength 635 nm laser recording in a wavelength 650 nm laser for regeneration, Jitter is higher than the embodiment 1, 2, has the adjusting system, are unable to meet the specification value.

[67]

Embodiment 4

[68]

In addition to utility embodiment 2 [turn 25] the above-mentioned of the three shown methylidyne Department and does not use the [turn 24] metal coordination compounds, the remaining the same embodiment 2 manufacturing a optical interference pigment the step of and latter states production of compact discs, with the embodiment 1 the results of measuring optical interference table 1 is shown in (optical interference layer of the absorption spectrum, according to the absorption spectrum of the calculated value h2/h1, d almost and Figure 2 the same), the same of the previous embodiment of the optical disc 1 recorded, the measuring result is as shown in table 1 is shown.

[69]

This embodiment of the optical disk is not and using metal coordination compound examples of the light stabilizer, can be by wavelength 635 nm laser to record and by means of the wavelength 650 nm laser for regeneration, Jitter is not high, an embodiment of modulation degrees overmatch 1, 2, a little light, however, the results of the trial. Comparative example 1

[70]

In addition to the azo pigment (Altorich corporate, models 36,482, Disperse   Red 13) substituted embodiment 1 ter methylidyne Department NK-2084, and does not use the [turn 24] metal coordination compounds, the remaining with the embodiment 1 to form the pigment manufacturing a optical interference steps and latter states production of compact discs, with the embodiment 1 the results of measuring optical interference as shown in Figure 5, table 1 shows, the same of the previous embodiment of the optical disc 1 recorded, the measuring result is as shown in table 1 is shown.

[71]

This comparative example is to use optical disk is not supporting the above-mentioned general formula [turn 1] and also supporting the azo pigment green, and not and used as a light stabilizing agent examples of the metal complex, and secondary wave crest/main peak of the absorbance ratio, the main peak and the second peak of the spectrum of the half-value width of the embodiment of all of the above-mentioned being bigger than , also Jitter outside in the specifications, the test result is also poor light.

[72]

That by the above-mentioned results of the embodiment when compared with the comparison example, second wave crest/main peak of the half height width of the absorbance ratio has obvious differences, the embodiment of the optical interference layer of an absorption wave crest beeby a more acute, Jitter of the fact that the characteristic can be fully reflect. In one embodiment light stabilizing agent and used as the metal complex, is obviously improved light fastness.

[73]

By these results that the invention can be defined the above "for Jitter 8.5 the following, for the modulation degree of 70% or more (not and supporting the above-mentioned general formula [turn 1] the pigment is, and the and the periphery of 66% or more)", in addition, may be defined "optical interference layer its visible ultraviolet spectrophotometer, the maximum absorption wave crest (main peak) wavelength and 2nd great absorption peak (peak time) wavelength in the 500-655nm within the range of".

[74]

The above-mentioned the present invention is defined as an "general formula [turn 1]", "general formula [turn 10]", "general formula [turn 19]" part of the various combinations of, or is defined as an ideal embodiment of the pigment or the metal complex of a portion or all of, a further supplementary the above matters can be defined.

[75]

The invention is to offer a kind of optical information recording medium, the characteristic line can be used for recording DVD regarding the short wavelength laser can be improve pigment wave crest of the main peak of the absorbance ratio, and the use of these peaks of the spectrum of the half-value width is reduced to form a sharp crest of the optical interference layer, thereby good recording sensitivity, a relatively thin light fords the level film thickness, and the regulating system or Jitter characteristics or the like, recording power is low, high-speed recording can be carried out.

[76]

[Table 1]

Below    -    -  Less than 9 More than 60  More than 60
Embodiment 1    0.74    96    8.0    70    65
Embodiment 2    0.77    98    8.0    72    68
Embodiment 3    0.79    99    8.5    66    62
Embodiment 4    0.77    98    8.0    74    20
Comparative example 1    0.97    130    15.0    70    15



[77]

An optical information recording medium having a recording layer comprising a dye layer containing a trimethine-based cyanine dye having nitro group attached to a benzene ring or to a naphthalene ring, both being bonded to indole ring, is capable of minimizing the second peak in relative to the main peak shown in FIG. 1, thus enabling the spectrum consisting of a main peak and a second peak to become sharp. The recording layer is capable of performing the recording and reading with a laser beam having a wavelength falling within a range of 620 nm to 690 nm.



1. A kind of optical information recording medium, based on the substrate containing pigment optical interference with the optical information recording medium, its characteristic for the pigment contains the following general formula [turn 1] indicated that ter methylidyne Department, the optical interference layer can be selected from the wavelength 620 nm -690 nm laser wavelength field recorded and regeneration, [turn 1] Wherein A is expressed the following general formula [turn 2]-[ the 5] in any one of, [turn 2] [Process 3] [Process 4] [Process 5] A ' is expressed the following general formula [turn 6]-[ turn 9] any one of the, [process 6] [Process 7] [Process 8] [Process 9]

With A A 'series can be the same or different (but m, n as the substituent of the number, are respectively 1 or a plurality of integer), R, R' is selected from the substituted or non-substituted alkyl, carboxy, alkoxy carbonyl, alkyl carboxyl, alkoxy, alkyl hydroxy, aralkyl, alkenyl, alkyl amido, alkylamine base, alkyl sulfonamide-based, alkyl carbamoyl, alkylamine sulfonyl, hydroxy, a halogen atom, alkyl alkoxy, alkyl halide, alkyl sulfonyl, bonded with the metal ion or the alkyl carboxyl or alkylsulfonyl, phenyl, benzyl, alkyl phenyl and phenoxy alkyl (can be alkyl, carboxyl, hydroxy, a halogen atom or the like; metal ion, other than the substituent substituted benzene ring part and/or the alkyl portion of the hydrogen atom, the aforesaid phenyl, benzyl, alkyl phenyl of the part is also the same) substituent of the group, can be the same or different, X- is selected from a halogen atom, PF6-, SbF6-, phosphoric acid, perchloric acid, boron fluorizating hydracids, benzene sulfonic acid, toluene sulfonic acid, alkyl sulfonic acid, benzene monocarboxylic acid , alkyl carboxylic acid, trifluoro methyl carboxylic acid, periodate, SCN-, four phenylo boric acid and an anion of the tungstate anion group.

2. Optical information recording medium according to Claim 1, wherein the pigment in addition to the above-mentioned general formula [turn 1] ter methylidyne Department outer, also contains other pigment, and the pigment contains at least 50 weight % of the general formula [turn 1] ter methylidyne Department.

3. The optical information recording medium according to Claim 2, wherein the other pigment to the following general formula [turn 10] three that expressed methylidyne Department, [process 10] Wherein B is expressed the following general [turn 11]-[ turn 14] of any one of a, [turn 11] [Process 12] [Process 13] [Process 14] B ' is expressed the following general formula [turn 15]-[ turn 18] of any one of a, [turn 15] [Turn 16] [Turn 17] [Turn 18]

With B B 'can be the same or different, wherein D1, D2 is respectively selected from a hydrogen atom, alkyl, alkoxy, hydroxy, halogen, carboxy, alkoxy carbonyl, alkyl carboxyl, alkyl hydroxy, aralkyl, alkenyl, alkyl amido, alkylamine base, alkyl sulfonamide-based, alkyl carbamoyl, alkylamine sulfonyl, alkyl sulfonyl, phenyl, cyano, ester, nitro, acyl, allyl, aryl, aryloxy, alkyl thio, aryl thio, phenyl-azo group, pyridine azo group, alkane carbonyl amino, sulfonamide group, amino, alkyl sulphonic, Thiocyano, mercapto, chlorine sulfo group , alkyl partner nitrogen time methyl, alkylamino sulfo, vinyl and sulfo substituent, can be the same or different, p, the number of the substituent q, is respectively expressed 1 or a plurality of integer (but does not include D1, D2 at the same time selecting only the situation of nitro-group), R, R' series with the above-mentioned general formula [turn 1] the same.

4. The optical information recording medium according to Claim 1, wherein the optical interference layer contains a metal coordination compound.

5. The optical information recording medium according to Claim 2, wherein the optical interference layer contains a metal coordination compound.

6. The optical information recording medium according to Claim 3, wherein the optical interference layer contains a metal coordination compound.

7. The optical information recording medium according to Claim 4, wherein the metal coordination compound is the following general formula [turn 19] expressed, [turn 19] Wherein R1, R2 is respectively expressed SO2 R3, wherein R3 [turn 20] the following train the base, [turn 20] A halogen atom, phenyl, alkyl, cyano, alkyl sulfide, alkyl sulfonyl, r, that s is 1-4 integer, R4 is alkyl, Y is expressed N or P, is expressed cu M, Co or metal such as Ni.

8. The optical information recording medium according to Claim 6, wherein the metal coordination compound is the following general formula [turn 19] expressed, [turn 19] Wherein R1, R2 is respectively expressed SO2 R3, wherein R3 [turn 20] the following train the base, [turn 20] A halogen atom, phenyl, alkyl, cyano, alkyl sulfide, alkyl sulfonyl, r, that s is 1-4 integer, R4 is alkyl, Y is expressed N or P, is expressed cu M, Co or metal such as Ni.

9. The optical information recording medium according to Claim 1, wherein the optical interference layer in the visible ultraviolet spectrophotometer the maximum absorption peak of the measured (main peak) wavelength and 2 large absorption peak (peak time) wavelength is 500-655nm.

10. The optical information recording medium according to Claim 3, wherein the optical interference layer in the visible ultraviolet spectrophotometer the maximum absorption peak of the measured (main peak) wavelength and 2 large absorption peak (peak time) wavelength is 500-655nm.

11. The optical information recording medium according to Claim 7, wherein the optical interference layer in the visible ultraviolet spectrophotometer the maximum absorption peak of the measured (main peak) wavelength and 2 large absorption peak (peak time) wavelength is 500-655nm.

12. The optical information recording medium according to Claim 8, wherein the optical interference layer in the visible ultraviolet spectrophotometer the maximum absorption peak of the measured (main peak) wavelength and 2 large absorption peak (peak time) wavelength is 500-655nm.

13. The optical information recording medium according to Claim 1, wherein the optical interference layer in the visible ultraviolet spectrophotometer at a wavelength of 400-800nm measured in the range of the absorption spectrum, the main wave crest h1 and the secondary wave crest h2 than absorbance of h2/h1 to 0.8 the following, and by the main peak and the secondary peaks of the spectrum of the half-value width of 100 nm.

14. The optical information recording medium according to Claim 9, wherein the optical interference layer in the visible ultraviolet spectrophotometer at a wavelength of 400-800nm in the measuring range of the absorption spectrum, the main wave crest h1 and the secondary wave crest h2 than absorbance of h2/h1 to 0.8 the following, and by the main peak and the secondary peaks of the spectrum of the half-value width of 100 nm.

15. The optical information recording medium according to Claim 10, wherein the optical interference layer in the visible ultraviolet spectrophotometer at a wavelength of 400-800nm in the measuring range of the absorption spectrum, the main wave crest h1 and the secondary wave crest h2 than absorbance of h2/h1 to 0.8 the following, and by the main peak and the secondary peaks of the spectrum of the half-value width of 100 nm.

16. The optical information recording medium according to Claim 11, wherein the optical interference layer in the visible ultraviolet spectrophotometer at a wavelength of 400-800nm in the measuring range of the absorption spectrum, the main wave crest h1 and the secondary wave crest h2 than absorbance of h2/h1 to 0.8 the following, and by the main peak and the secondary peaks of the spectrum of the half-value width of 100 nm.

17. The optical information recording medium according to Claim 12, wherein the optical interference layer in the visible ultraviolet spectrophotometer at a wavelength of 400-800nm in the measuring range of the absorption spectrum, the main wave crest h1 and the secondary wave crest h2 than absorbance of h2/h1 to 0.8 the following, and by the main peak and the secondary peaks of the spectrum of the half-value width of 100 nm.

18. The optical information recording medium according to Claim 7, which belongs to the general formula [turn 1] for A the compound of general formula [turn 2], A ' to general formula [turn 6], and m is 1, R, R  [...] the alkyl or wafer of the same, which belongs to the general formula [turn 19] compound, the R3 of the general formula [turn 20].

19. The optical information recording medium according to Claim 11, wherein the general formula [turn 1] for A the compound of general formula [turn 2], A ' to general formula [turn 6], and m is 1, R, R  [...] the alkyl or wafer of the same, which belongs to the general formula [turn 19] compound, the R3 of the general formula [turn 20].

20. The optical information recording medium according to Claim 16, wherein the general formula [turn 1] for A the compound of general formula [turn 2], A ' to general formula [turn 6], and m is 1, R, R  [...] the alkyl or wafer of the same, which belongs to the general formula [turn 19] compound, the R3 of the general formula [turn 20].