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A kind of green foundry grade car film and preparation method thereof

A car film, green technology, applied in the field of green cast-grade car film and its preparation, can solve the problems of increased rigidity, stress retraction, and brittle protective film of the finished car film, and achieve the improvement of scratch resistance and self-improvement. cleaning ability and the effect of reducing surface tension

Active Publication Date: 2019-03-29
GUANGZHOU BAOLI TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no matter it is cast-grade car film or calendar-grade car film, the mixed raw materials must be mechanically extruded and stretched, which leads to increased rigidity of the finished car film, which cannot be stretched or is prone to stress retraction after stretching , which eventually leads to warping during the film sticking process, poor construction efficiency and high defect rate
In addition, raw materials such as PVC used as a protective film have relatively high rigidity, and it is necessary to add small or medium molecular oils to enhance their toughness when mixing the raw materials. It is easy to precipitate out and make the protective film brittle

Method used

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  • A kind of green foundry grade car film and preparation method thereof

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Embodiment 1

[0028] As shown in Figure 1, it is a green cast-grade car film, which is provided with a color layer 3, a pressure-sensitive adhesive layer 5 and a release paper 6 in sequence, and a reflective layer 4 is arranged between the color layer 3 and the pressure-sensitive adhesive layer 5. Wherein, the reflective layer 4 is a white composite layer, and the composite layer is made of polyurethane, polyester resin and acrylate.

[0029] The other side of the colored layer 3 is provided with a protective layer 2 . Wherein, the protective layer 2 is a capsule polyurethane layer. The other side of the protective layer 2 is provided with a temporary protective film 1 . The release paper 6 is provided with an air guiding pattern. The depth of the gas guide pattern is 10 μm.

[0030] The preparation method of described cast-grade car film comprises the steps:

[0031] S1. Prepare protective layer and reflective layer respectively: dissolve aliphatic polyurethane, polyester resin and acr...

Embodiment 2

[0037] Example 2 Except that the mass ratio of aliphatic polyurethane and polyester resin in steps S1 and S2 is 5:60; the mass ratio of polyester resin, solvent, auxiliary agent and functional material in the protective layer is 35:45:3:3 ; The mass ratio of polyester resin, solvent, auxiliary agent, and functional material in the reflective layer is 25:35:3:20; the mass ratio of polyester resin, solvent, auxiliary agent, and colorant in the color layer is 35:35: 3:10; the mass ratio of aliphatic polyurethane, acrylate, solvent, additives, and functional materials in the pressure-sensitive adhesive layer is 20:30:2; the forced drying temperature in step S1 is 25°C, and in steps S1 and S2 Thermal curing temperature is except 25 ℃, and other conditions are with embodiment 1;

Embodiment 3

[0039] Except that the mass ratio of aliphatic polyurethane and polyester resin in steps S1 and S2 is 40:95; the mass ratio of polyester resin, solvent, auxiliary agent and functional material in the protective layer is 45:55:8:8; the reflective layer The mass ratio of polyester resin, solvent, auxiliary agent, and functional material is 35:45:8:30; the mass ratio of polyester resin, solvent, auxiliary agent, and colorant in the color layer is 45:45:8:20 ; The mass ratio of aliphatic polyurethane, acrylate, solvent, additives, and functional materials in the pressure-sensitive adhesive layer is 40:40:30; the forced drying temperature in step S1 is 160°C, and the heat curing temperature in step S1 or S2 Be other with embodiment 1 except 80 ℃;

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Abstract

The invention discloses a green casting level automobile film and a preparation method thereof. The film is successively provided with a color layer, a pressure-sensitive glue layer and release paper. A reflective layer is arranged between the color layer and the pressure-sensitive glue layer. The reflective layer is a white polyurethane layer or a white polyester resin layer. The green casting level automobile film mainly uses materials such as polyurethane and polyester resin, and the layers are combined through a coating process. The prepared casting level automobile film is good in elasticity. An edge warping phenomenon is unlikely to happen in a film pasting process, the construction efficiency is high and the yield is high. A protective layer is further arranged on the other side of the color layer of the casting level automobile film, so that the inner structure of the automobile film is protected well. The film can be of a capsule structure and can be made from a nanoscale material, so that the film is good in self-repairing property and high in self-cleanliness.

Description

technical field [0001] The invention relates to a film, in particular to a green foundry-grade car film and a preparation method thereof. Background technique [0002] Car beauty decoration has become a new trend of car culture. More and more people like to modify their cars to show their personality, and changing the color of the body has become the first choice for modification. The existing color-changing car film adopts a multi-layer casting structure: for example, the Chinese invention patent application titled "decorative film and its preparation method" with application number 201210031553.4 discloses a decorative film and its preparation method. The decorative film includes: as the uppermost transparent polymer film layer, the transparent polymer film layer is made of polyethylene, polyethylene terephthalate, polyurethane, polypropylene, polyvinyl dichloride, polychloride One or more of vinyl and polystyrene; a printing layer adjacent to the back of the transparent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/40B32B27/36B32B27/30B32B27/08B32B27/18B32B7/06B32B3/30B32B33/00B32B37/02
CPCB32B3/30B32B7/06B32B27/06B32B27/08B32B27/18B32B27/308B32B27/36B32B27/40B32B33/00B32B37/02B32B2307/51B32B2307/558B32B2307/762
Inventor 李艳洵陈勇军
Owner GUANGZHOU BAOLI TRADE
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