Tamper-proof medium for thermal printing

The present invention relates to method of manufacturing a tamper-proof medium for thermal printing, wherein a liquid treatment composition comprising at least one acid is deposited on a substrate which comprises a thermochromic coating layer comprising at least one halochromic leuco dye.

Pigment with day-light fluorescence

A pigment, especially a yellow to red emitting luminescent material, with a host lattice of the nitridosilicate type MxSiyNz:Eu, wherein M is at least one of an alkaline earth metal chosen from the group Ca, Sr, Ba and wherein z=2/3x+{fraction (4/3y.

PAPER FOR OFFSET PRINTING

Disclosed is a printing sheet for offset printing, comprising at least one image receiving coating and optionally one or several pre-coatings beneath said image receiving coating, said coatings comprising a pigment part, a binder part, and optionally additives, wherein the pigment part essentially consists of one or a mixture of fine particulate pigments selected from the group of carbonate, kaolin, solid or vacuolated polymer pigment, wherein said binder part comprises waterglass.

TAMPER-PROOF MEDIUM FOR THERMAL PRINTING

The present invention relates to method of manufacturing a tamper-proof medium for thermal printing, wherein a liquid treatment composition comprising at least one acid is deposited on a substrate which comprises a thermochromic coating layer comprising at least one halochromic leuco dye. 1. A method of manufacturing a tamper-proof medium for thermal printing , the method comprising the following steps:a) providing a substrate, wherein the substrate comprises on at least one side a thermochromic coating layer comprising at least one halochromic leuco dye,b) providing a liquid treatment composition comprising at least one acid, andc) applying the liquid treatment composition onto at least one region of the thermochromic coating layer in form of a preselected pattern.2. The method of claim 1 , wherein the substrate is selected from the group consisting of paper claim 1 , cardboard claim 1 , containerboard claim 1 , plastic claim 1 , cellophane claim 1 , textile claim 1 , wood claim 1 , metal claim 1 , glass claim 1 , mica plate claim 1 , and nitrocellulose.3. The method of claim 1 , wherein the at least one halochromic leuco dye is colourless.4. The method of claim 1 , wherein the at least one halochromic leuco dye is selected from the group consisting of arylmethane phthalide dyes claim 1 , quinone dyes claim 1 , triarylmethane dyes claim 1 , triphenylmethane dyes claim 1 , fluoran dyes claim 1 , phenothiazine dyes claim 1 , rhodamine lactam dyes claim 1 , spiropyran dyes claim 1 , and mixtures thereof.5. The method of claim 1 , wherein the thermochromic coating layer comprises the at least one halochromic leuco dye in an amount from 1 to 60 wt.-% claim 1 , based on the total weight of the thermochromic coating layer.6. The method of claim 1 , wherein the thermochromic coating layer further comprises a colour developing agent.7. The method of claim 1 , wherein the at least one acid is selected from the group consisting of hydrochloric acid claim 1 , sulphuric acid ...

Patterning of natural products

A method is described for creating a pattern on a natural material of human or animal origin. In embodiments, the method deposits a liquid treatment composition including at least one acid on a natural material, which comprises calcium carbonate.

Tamper-proof medium for thermal printing

The present invention relates to method of manufacturing a tamper-proof medium for thermal printing, wherein a liquid treatment composition comprising at least one acid is deposited on a substrate which comprises a thermochromic coating layer comprising at least one halochromic leuco dye.

Tamper-proof medium for thermal printing

The present invention relates to method of manufacturing a tamper-proof medium for thermal printing, wherein a liquid treatment composition comprising at least one acid 5 is deposited on a substrate which comprises a thermochromic coating layer comprising at least one halochromic leuco dye.

Patterning of natural products

The present invention relates to a method for creating a pattern on a natural material of human or animal origin, wherein a liquid treatment composition comprising at least one acid is deposited on a natural material, which comprises calcium carbonate.

Patterning of natural products

The present invention relates to a method for creating a pattern on a natural material of human or animal origin, wherein a liquid treatment composition comprising at least one acid is deposited on a natural material, which comprises calcium carbonate.

Tamper-proof medium for thermal printing

The present invention relates to method of manufacturing a tamper-proof medium for thermal printing, wherein a liquid treatment composition comprising at least one acid 5 is deposited on a substrate which comprises a thermochromic coating layer comprising at least one halochromic leuco dye.

Paper for offset printing

Disclosed is a printing sheet for offset printing, comprising at least one image receiving coating and optionally one or several pre-coatings beneath said image receiving coating, said coatings comprising a pigment part, a binder part, and optionally additives, wherein the pigment part essentially consists of one or a mixture of fine particulate pigments selected from the group of carbonate, kaolin, solid or vacuolated polymer pigment, wherein said binder part comprises waterglass.

Method and apparatus for detecting an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of a substrate or within a substrate

A method for detecting an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of a substrate or within a substrate is described. The method comprises the steps of providing an LWIR imaging system with an infrared light emitting source (A) configured to emit infrared light over the whole range of 8 to 14 micrometers, an LWIR detecting device (B) configured to detect an intensity of electromagnetic radiation scattered, emitted and/or reflected by the substrate, and a control circuitry for controlling the LWIR detecting device. The method further comprises providing a substrate comprising an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of the substrate or within the substrate, irradiating the provided substrate with the infrared light emitting source, acquiring, using the LWIR detecting device, a stream of a plurality of temporally consecutive images of the substrate and the amorphous and/or crystalline structure of phosphate and/or sulphate salts irradiated with the infrared light emitting source, and selecting, based on processing the acquired stream of images with the control circuitry, at least one focused image, in which the amorphous and/or crystalline structure of phosphate and/or sulphate salts is substantially in focus of the LWIR detecting device.

Method and apparatus for detecting an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of a substrate or within a substrate

A method for detecting an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of a substrate or within a substrate is described. The method comprises the steps of providing an LWIR imaging system with an infrared light emitting source (A) configured to emit infrared light over the whole range of 8 to 14 micrometers, an LWIR detecting device (B) configured to detect an intensity of electromagnetic radiation scattered, emitted and/or reflected by the substrate, and a control circuitry for controlling the LWIR detecting device. The method further comprises providing a substrate comprising an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of the substrate or within the substrate, irradiating the provided substrate with the infrared light emitting source, acquiring, using the LWIR detecting device, a stream of a plurality of temporally consecutive images of the substrate and the amorphous and/or crystalline structure of phosphate and/or sulphate salts irradiated with the infrared light emitting source, and selecting, based on processing the acquired stream of images with the control circuitry, at least one focused image, in which the amorphous and/or crystalline structure of phosphate and/or sulphate salts is substantially in focus of the LWIR detecting device.

Detection of an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of a substrate or within a substrate with a lwir imaging system

A method and an LWIR imaging system for detecting an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of a substrate or within a substrate are described. The method comprises the steps of i) providing an LWIR imaging system, the LWIR imaging system comprising a) an infrared light emitting source (A) that emits over the whole range of 8 to 14 micrometers, b) an LWIR detecting device (B) and c) a ToF distance sensor (C), ii) providing a substrate comprising an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of the substrate or within the substrate, ii) irradiating the provided substrate with the infrared light emitting source and iii) detecting, with the LWIR detecting device and using and/or based on the TOF distance sensor, the intensity of electromagnetic radiation scattered, emitted and/or reflected by the substrate and the amorphous and/or crystalline structure of phosphate and/or sulphate salts.

Papier für offsetdruck

Detection of an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of a substrate or within a substrate with a lwir imaging system

A method and an LWIR imaging system for detecting an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of a substrate or within a substrate are described. The method comprises the steps of i) providing an LWIR imaging system, the LWIR imaging system comprising a) an infrared light emitting source (A) that emits over the whole range of 8 to 14 micrometers, b) an LWIR detecting device (B) and c) a ToF distance sensor (C), ii) providing a substrate comprising an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of the substrate or within the substrate, ii) irradiating the provided substrate with the infrared light emitting source and iii) detecting, with the LWIR detecting device and using and/or based on the TOF distance sensor, the intensity of electromagnetic radiation scattered, emitted and/ or reflected by the substrate and the amorphous and/or crystalline structure of phosphate and/or sulphate salts.