High-transparency low-haze BOPET anti-fog film and preparation method thereof

An anti-fog film, low haze technology, applied in chemical instruments and methods, coatings, layered products, etc., can solve the problems of blurred vision of users, affect visual effects, low anti-fog performance, etc., and achieve excellent anti-fog performance. High performance, safe and reliable, high gloss effect

Pending Publication Date: 2020-12-04
ZHEJIANG GREAT SOUTHEAST PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Personal protective equipment currently required in the field of medical protection and people's daily life, such as: medical protective masks, goggles, helmets for motorcycles, electric vehicles, bicycle riders, and various glasses worn by countless people, such as Exposure to external rain, damp, alternation of cold and warm air, self-breathing

Method used

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  • High-transparency low-haze BOPET anti-fog film and preparation method thereof
  • High-transparency low-haze BOPET anti-fog film and preparation method thereof
  • High-transparency low-haze BOPET anti-fog film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A polyester anti-fog film prepared by biaxial stretching process and on-line coating of anti-fog liquid. The ratio of raw materials and masterbatch: A layer is composed of raw material polyester and anti-adhesive masterbatch in a mass ratio of 85:15. The B layer is composed of raw polyester. The moisture content of the raw material masterbatch after drying is <20ppm. The three-layer co-extrusion percentage example is A layer 5%×2, B layer 90%. The extruder barrel, die head, MDO, and TDO heating temperatures were 220°C, 275°C, 80°C, and 90°C, respectively. The production line speed is 28m / min, the longitudinal stretch ratio is 2.5, and the transverse stretch ratio is 3.0. On-line trimming and off-cut recycling is not on-line utilization. The anti-reflection and anti-fog water-based coating solution for online coating is diluted in a volume ratio of 1 part of anti-fog solution, 1 part of water and 3 parts of ethanol. The coating thickness is 13um (wet). The corona in...

Embodiment 2

[0046] A polyester anti-fog film prepared by biaxial stretching process and on-line coating of anti-fog liquid. The ratio of raw materials and masterbatch: A layer is composed of raw material polyester and anti-adhesive masterbatch in a mass ratio of 82:18. The B layer is composed of raw polyester. The moisture content of the raw material masterbatch after drying is less than 20ppm. The three-layer co-extrusion percentage example is A layer 6%×2, B layer 88%. The extruder barrel, die head, MDO, and TDO heating temperatures were 250°C, 285°C, 82°C, and 95°C, respectively. The production line speed is 30m / min, the longitudinal stretch ratio is 2.8, and the transverse stretch ratio is 3.5. On-line trimming and off-cut recycling is not on-line utilization. The anti-reflection and anti-fog water-based coating solution for online coating is diluted in a volume ratio of 1 part of anti-fog solution, 1.5 parts of water, and 2.5 parts of ethanol. Coating thickness 12um (wet). The c...

Embodiment 3

[0049] A polyester anti-fog film prepared by biaxial stretching process and on-line coating of anti-fog liquid. The ratio of raw materials and masterbatch: A layer is composed of raw material polyester and anti-adhesive masterbatch in a mass ratio of 80:20. The B layer is composed of raw polyester. The moisture content of the raw material masterbatch after drying is <20ppm. The three-layer co-extrusion percentage example is A layer 8%×2, B layer 84%. The extruder barrel, die head, MDO, and TDO heating temperatures are 260°C, 280°C, 85°C, and 98°C, respectively. The production line speed is 32m / min, the longitudinal stretch ratio is 3.0, and the transverse stretch ratio is 3.8. On-line trimming and off-cut recycling is not on-line utilization. The anti-reflection and anti-fog water-based coating solution for online coating is diluted in a volume ratio of 1 part of anti-fog solution, 2 parts of water and 2 parts of ethanol. Coating thickness 10um (wet). The corona intensity...

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Abstract

The invention provides a high-transparency low-haze BOPET anti-fog film and a preparation method thereof. The anti-fog film is composed of an anti-sticking layer, a base material layer, a corona layerand an anti-fog coating, wherein the base material layer is located between the anti-sticking layer and the corona layer, and one side of the corona layer is covered with the anti-fog coating. According to the invention, a biaxially oriented polyester thick film production process is adopted, and a manufacturing process of coating anti-fog liquid on line is adopted, so that the anti-fog film which can be suitable for personal protective articles required by daily life of people and sanitary protective appliances necessary for medical workers is prepared; and the BOPET anti-fog film has the characteristics of high transparency, high glossiness, excellent anti-fog performance, corrosion resistance, high impact resistance, safety, reliability and high practicability.

Description

technical field [0001] The invention relates to a highly transparent BOPET anti-fog film suitable for people's daily life and personal protective equipment for medical workers and a preparation method thereof. Background technique [0002] Personal protective equipment currently required in the field of medical protection and people's daily life, such as: medical protective masks, goggles, helmets for motorcycles, electric vehicles, bicycle riders, and various glasses worn by countless people, such as Factors such as external rain, damp, alternation of cold and warm air, and self-breathing will easily fog the membrane surface, resulting in blurred vision of the user and affecting the visual effect. The anti-fog films made of various plastic materials in the past are mainly used for greenhouse films or mulch films for cultivating crops, and the anti-fog performance is also low, and it is best to only reach the level 2. [0003] Therefore, the development and production of BO...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B27/06B32B27/18B32B33/00B29C48/00B29C48/08B29C48/18B29C48/92
CPCB32B27/08B32B27/18B32B27/36B32B33/00B32B2250/244B32B2255/10B32B2307/406B32B2307/412B32B2307/558B32B2307/714B29C48/0018B29C48/08B29C48/18B29C48/92B29C2948/92704B29C2948/92895
Inventor 骆平高新王高军史武军杜学良董文昌钱苏凯寿祖康
Owner ZHEJIANG GREAT SOUTHEAST PACKAGING
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