Improved paper, more particularly intended for the use in medicine and surgery
FRENCH REPUBLIC MINISTRY OF INDUSTRY SERVICE iNTELLECTUAL INDUSTRIELLE PATENT of the On PROBLEMS [...] no. 871,351 [...] 1.298.215 [...]. Internet.: Society said: E S & A ROBINSON LIMITED residing in the UK. Demanded 22 August 1961, to 16' 29m, to Paris. 28 May 1962 Issued by stopped. A paper especially specifically a paper for medical purposes surgical and. For thus is usable generally to a paper must be able to withstand a normal process sterilization, for example, sterilization autoclave. The paper must be sufficiently water-resistant, muffler when used, it must have a formalibity and draping a satisfactory. Its toughness must be greater than that of the paper embossed (crepe paper). The crepe paper is satis- which in that it is silent and has no spring (does not reverse rear) but nor well suited because of its bad qualities obstacle bacteria. This increases the risk of contamination by infected droplets in contact with which the crepe paper is. The present invention thus comprises a paper for use in medicine or surgery, paper which has a stiffness and resistance determined in advance and that is processed by a plasticizer in such a way that-exporters reduce its stiffness and to maintain strength. A example of suitable plasticizer is glycerin. If desired, the paper may be processed by means of a water repellent, for example lanolin, to reduce its hygroscopicity. According to one of its features, the invention com- takes a method according to which the impregnation takes place in a bath mg kraft paper with an emulsion glycerin and lanolin so that the paper finished contains 18 to 20% and 5% of glycerin lanolin (the percentages being by weight). The gly- ceria acts as the plasticizer and lanolin as water repellent. A particular example of emulsion useful for the following composition: Stearic acid 10 36.5 Lanolin Glycerin 125 Water 25 3.8 0.1 Triethanolamine terpineol A substance may be added to the odor antiseptic composition. Clearly, the percentages indicated only can be modified in such a way to satisfy some particular requirements data. The glycerin can be replaced by another plasticizer any convenient such as poly-ethylene-glycol 200, hexylene glycol or glycol or any other [...] provided that its boiling point is greater than 180 °C, for example, to avoid losses to the sterilization. The lanolin can be replaced with petrolatum, silicones or any other substance capable of rendering the water repellent paper without form an obstacle to free passage of the water vapor. Instead of using apples kraft paper, can be used any other paper, such as a sulphite paper. Instead of impregnating the paper previously formed, as described above, the plasticizer and the water repellent may be incorporated, to the pulp during paper manufacture. A paper prepared according to the present invention can be used for various medical-surgical field, e.g. for wrapping surgical products or for towels used during operations and it constitutes a satisfactory paper for sterile surfaces. It is silent, has no or almost no spring (i.e. only returns 1° As new industrial product, paper used in medicine and surgery which has been treated with a plasticizer so as to decrease the stiffness and to maintain the strength as it had previously; 2° The varieties of the product specified under 1 °, having the following features taken separately or according to the various possible combinations: c. The water repellent is lanolin; /. The paper has been treated with an emulsion comprising, by weight: 10 parts of stearic acid, 36.5 parts lanolin, glycerin 135 parts, 25 parts of water, 3.8 parts ethanolamine and 0.1 part of terpineol. 3° A method of manufacturing paper such as specified under 1° and 2 °, in which a paper is impregnated with a stiffness and a resistor determined using a plasticizer and water repellent. 4° One operating mode of the method specified under 3 °, wherein the plasticizer and the water repellent is incorporated in the paste itself during the manufacture of paper. Said Society: Robinson limit s & has e For proxy: J. Casanova (Cabinet [...] young) Iasale For booklets, be directed to I ' Imprimerie Nationale, -27, the street Convention, Paris ( 15e). Improved paper, more particularly for use in medicine and surgery.
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