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A kind of ultra-thin black light-shielding film and processing method thereof

A film and black technology, applied in the field of ultra-thin black light-proof film and its processing, can solve the problems of being unsuitable for small batch, multi-variety processing, occupying large space, and high processing cost, achieving light weight, convenient processing, and production equipment. low investment

Active Publication Date: 2019-09-10
JIAOZUO ZHUOLI STAMPING MATERIAL CO., LTD.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the production process of mobile phone LED shading film, the traditional method is to add carbon black or other fillers to the plastic masterbatch, and form a black shading film with a thickness of more than 100 μm through heating, salivation, and stretching. Large, complex processing, high processing cost, not suitable for small batch, multi-variety processing

Method used

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  • A kind of ultra-thin black light-shielding film and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A coating made from the following raw materials:

[0030] TPU resin (thermoplastic polyurethane resin, Luoyang Jiming Chemical Co., Ltd., model JM-1019): 20wt%;

[0031] TDI (toluene diisocyanate): 0.1wt%;

[0032] BYK-163 dispersant from BYK, Germany: 0.2wt%;

[0033] TEGO-Glide 410 leveling agent from Tego Germany: 0.1wt%;

[0034] Carbon black: 3wt%;

[0035] Clay: 10wt%;

[0036] Solvent: 66.6wt%, mixed with methyl ethyl ketone and ethyl acetate at a volume ratio of 1:1, prepared by the following method: take each raw material in proportion, after mixing, the various materials are first dispersed with a high-speed disperser for 60 Minutes to make all materials fully mixed, no agglomeration, no precipitation, forming a uniform dispersion, grinding the coating under the condition of passing cooling water through a pin-type sand mill, and wet grinding to a fineness of less than 0.6μm More than 90%, the temperature of the coating during the grinding process is not ...

Embodiment 2

[0047] A coating made from the following raw materials:

[0048] TPU resin (thermoplastic polyurethane resin, Luoyang Jiming Chemical Co., Ltd., model JM-1019): 15wt%;

[0049] TDI (toluene diisocyanate): 0.2wt%;

[0050] German BYK-163 dispersant: 0.4wt%;

[0051] TEGO-Glide 410 leveling agent from Tego Germany: 0.3wt%;

[0052] Carbon black 5wt%;

[0053] Clay: 15wt%;

[0054] Solvent: 64.1wt%, mixed with methyl ethyl ketone and ethyl acetate at a volume ratio of 1:1, prepared by the following method: take each raw material in proportion, after mixing, the various materials are first dispersed with a high-speed disperser for 30 Minutes to make all materials fully mixed, no agglomeration, no precipitation, forming a uniform dispersion, grinding the coating under the condition of passing cooling water through a pin-type sand mill, and wet grinding to a fineness of less than 0.6μm More than 90%, the temperature of the coating during the grinding process is not greater than...

Embodiment 3

[0065] A coating made from the following raw materials:

[0066] TPU resin (thermoplastic polyurethane resin, Luoyang Jiming Chemical Co., Ltd., model JM-1019): 18wt%;

[0067] TDI (toluene diisocyanate): 0.2wt%;

[0068] German BYK-163 dispersant: 0.3wt%;

[0069] TEGO-Glide 410 leveling agent from German Tego: 0.2wt%;

[0070] Carbon black: 4wt%;

[0071] Clay: 13wt%;

[0072] Solvent: 64.3wt%, mixed with methyl ethyl ketone and ethyl acetate at a volume ratio of 1:1, prepared according to the following method: take each raw material in proportion, after mixing, the various materials are mixed and then dispersed with a high-speed disperser for 45 Minutes to make all materials fully mixed, no agglomeration, no precipitation, forming a uniform dispersion, grinding the coating under the condition of passing cooling water through a pin-type sand mill, and wet grinding to a fineness of less than 0.6μm More than 90%, the temperature of the coating during the grinding process ...

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Abstract

The invention relates to an ultrathin black light avoiding thin film and a processing method thereof. The paint is used for coating, and is prepared from the following materials: 15 to 20 weight percent of TPU resin, 0.1 to 0.2 weight percent of TDI, 0.2 to 0.4 weight percent of BYK-163 dispersing agents, 0.1 to 0.3 weight percent of TEGO-Glide 410 flatting agents, 3 to 5 weight percent of carbon black, 10 to 15 weight percent of pottery clay and the balance of solvents, wherein the solvent is formed by mixing butanone and ethyl acetate according to a volume ratio of 1:1. The obtained black light avoiding thin film disclosed by the invention has the advantages that the thickness is thin (8 to 13.5mu m); the weight is light (10 to 15g / m<2>); the processing is convenient; the light transmission rate is smaller than 0.01 percent. The coating disclosed by the invention adopts a gravure and wire rod sharing mode; the coating mode has the characteristics that the two kinds of modes can mutually make up shortcomings, so that a coating is fine, smooth and compact, and has no meshes or sand holes.

Description

technical field [0001] The invention belongs to the field of film materials, and in particular relates to an ultra-thin black light-shielding film and a processing method thereof. Background technique [0002] In the production process of mobile phone LED shading film, the traditional method is to add carbon black or other fillers to the plastic masterbatch, and form a black shading film with a thickness of more than 100 μm through heating, salivation, and stretching. Large, complex processing, high processing cost, not suitable for small batch, multi-variety processing. [0003] The product involved in this application is to use a special coating process to coat black paint on the BOPET film on the ultra-thin BOPET film to form a new type that is completely light-proof, thin in thickness, light in weight, easy to process and low in cost. Light-proof products, suitable for special light-proof requirements in modern processing fields. Contents of the invention [0004] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/61C09D7/63C08J7/04B29D7/01
CPCB29D7/01C08J7/0427C08J2367/02C08J2475/04C08K3/04C08K3/346C08K5/29C09D175/04
Inventor 张振宇刘海军刘涛段新虎王蓬勃
Owner JIAOZUO ZHUOLI STAMPING MATERIAL CO., LTD.
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