Preparation method of special material for enhancing collecting effect of living fingerprint (palm print) collecting instrument

A collection instrument and living body technology, applied in the field of optical living fingerprint collection, can solve the problems of poor image quality and increase the difficulty of analyzing and processing finger (palm) print information, etc., to achieve the effect of protecting the collection mirror and improving the pass rate

Inactive Publication Date: 2015-03-18
任克军 +1
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Problems solved by technology

[0003] The experience of living finger (palm) print collection shows that if the finger (palm) that is too dry or too wet is directly attached to the glass surface of the collection window of the live finger (pa...

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  • Preparation method of special material for enhancing collecting effect of living fingerprint (palm print) collecting instrument
  • Preparation method of special material for enhancing collecting effect of living fingerprint (palm print) collecting instrument

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Embodiment 1

[0020] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0021] First, see figure 1 As shown, the special material 1 of the present invention includes a PET release layer 113 with a thickness of 0.05mm; with the PET release layer 113 as the base, the methyl block RTV silicone rubber is coated on the PET On the release layer 113, after it is vulcanized, the reinforced film 112 with a thickness of 0.5mm is formed; and the PET peeling layer 111 that can protect the reinforced film from external environmental pollution and damage, the peeled The layer thickness was 0.05 mm. The PET release layer 113 is the base material, which is the base of the methyl block room temperature vulcanization silicone rubber vulcanization, and the hardness is 3H, which ensures that the methyl block room temperature vulcanization silicone rubber is evenly stressed during vulcaniz...

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Abstract

The invention discloses a preparation method of a special material for enhancing the fingerprint (palm print) collecting effect of a living fingerprint (palm print) collecting instrument. According to the preparation method, high-molecular compound methyl block room temperature vulcanized silicon rubber and PET are taken as main materials, the methyl block room temperature vulcanized silicon rubber is uniformly spread onto a PET release layer material, then is placed into an electronic damp-proof cabinet and is vulcanized to form a reinforced membrane which is covered with a PET stripped layer material after being completely dried, and then slitting, checking and packaging are carried out. The thickness of the reinforced membrane is 0.5mm, thus the reinforced membrane has strong adsorption capability, can be well adsorbed to the surface of glass of the fingerprint (palm print) collecting instrument, and has relatively high light transmittance and relatively strong anti-tension strength. By adopting the preparation method of the special material for enhancing the fingerprint (palm print) collecting effect of the living fingerprint (palm print) collecting instrument, the special material prepared by the method can be used for effectively eliminating the influence of dry finger and shallow fingerprint (palm print) lines on images of fingerprint (palm print), increasing the fingerprint (palm print) collecting passing rate, and protecting the glass of a collecting window of the fingerprint (palm print) collecting instrument.

Description

technical field [0001] The invention relates to a method for preparing a material for enhancing the collection effect of finger (palm) prints of a living body finger (palm) collection instrument, especially a method for applying methyl block room temperature vulcanized silicone rubber to optical live finger (palm) after normal temperature vulcanization A method in the technical field of pattern acquisition. Background technique [0002] Optical finger (palm) print collection technology is currently the most widely used live finger (palm) print collection technology. The principle is that the collector uses light from the light source to irradiate the glass surface with finger (palm) prints to form different reflected light according to the differences in the geometric and physical characteristics of the mastoid line of the finger (palm) print and the small furrow. The reflected light is then focused by a convex mirror and captured by a CCD or CMOS. Our country's public sec...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/28B32B27/36
CPCC08J7/0427C08J2367/02C08J2483/10C09D183/10
Inventor 任克军许春光
Owner 任克军
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