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Silk screen printing reflecting film and preparation method thereof

A technology of screen printing and reflective film, used in optics, optical components, instruments, etc., can solve the problems of film curling deformation, product printing dislocation, etc., and achieve the effect of light release, good stability and simple process

Pending Publication Date: 2018-09-21
上海清研新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different thermal shrinkage ratios of PET and PE, the film will be curled and deformed during the preparation of screen printing products, which will lead to various product quality problems such as product printing misalignment

Method used

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  • Silk screen printing reflecting film and preparation method thereof
  • Silk screen printing reflecting film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] On the 75um PET film, apply 100um fluorine release agent (GW-201, Daikin, Japan, solid content 5%) glass bead fixing adhesive, dry in an oven, and then put glass beads with a refractive index of 1.93 Evenly adhere to the adhesive layer, and pass through a compound roller with a pressure of 4kgf to obtain a screen printing reflective film.

Embodiment 2

[0027] On a 100um PET film, apply a 100um silicone resin (Dow Corning 7268, curing agent dosage BPO 3.0%, solid content 35%) glass bead fixing adhesive, dry in an oven at 90°C for 1min and 150°C for 3min, and then Glass beads with a refractive index of 1.93 are evenly attached to the adhesive layer, and passed through a composite roller with a pressure of 4kgf to obtain a screen-printed reflective film.

Embodiment 3

[0029] On a 100um PET film, apply a 100um silicone resin (Dow Corning 7268, curing agent dosage BPO 3.0%, solid content 35%) glass bead fixing adhesive, dry in an oven at 90°C for 1min and 150°C for 3min, and then Glass beads with a refractive index of 1.93 are evenly attached to the adhesive layer, passed through a composite roller with a pressure of 4kgf, and then coated with polyurethane resin on the glass bead layer to obtain a screen-printed reflective film.

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PUM

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Abstract

The invention provides a silk screen printing reflecting film and a preparation method thereof. The silk screen printing reflecting film is composed of a carrier film, a glass bead fixation layer, glass beads, an adhesive layer and a reflective layer. The obtained silk screen printing reflecting film has the advantages of being simple in technology and good in stability; in the high-temperature baking process, deformation, curling and edge warping do not occur, and the silk screen printing reflecting film is particularly applicable to the full-automatic printing technology. The silk screen printing reflecting film produced through the method is light in release and good in adaptability with printing ink.

Description

technical field [0001] The invention relates to the field of reflective materials, in particular to a reflective film for screen printing and a preparation method thereof. Background technique [0002] Screen printing has been widely used in production and life. The reflective material produces a strong reflective effect under the light source, which has the purposes of marking and warning, and also provides safety guarantee for walking at night. Screen printing is printed with ink, and the ink uses high boiling point solvents, which require high temperature heating to dry the solvents. [0003] The current silk screen reflective film substrate is made of PET / PE or paper / PE composite film as the base film, which is planted with beads and coated with an adhesive layer. Due to the different thermal shrinkage ratios of PET and PE, the film will be curled and deformed during the preparation of screen printing products, which will lead to various product quality problems such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/128
CPCG02B5/128
Inventor 不公告发明人
Owner 上海清研新材料科技有限公司
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