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Car room lens protective film and preparation method thereof

A protective film and lens technology, which is applied in the direction of pressure-sensitive film/sheet, film/sheet release liner, film/sheet-shaped adhesive, etc. It can solve the problems of complex manufacturing process, complex structure, and low efficiency

Pending Publication Date: 2021-09-10
SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the garage lens needs to use a special protective film for fixed protection during the processing and polishing process. At present, there are two main methods: one needs to brush a layer of epoxy resin paint or polyurethane paint on the surface of the protective film, and then use it with a chuck with a low melting point. Alloy bonding takes an additional 3-5 minutes. This fixing method is inefficient and high in cost; the second is a new solution developed recently, which solves the need for painting in the past by using pre-coated colored protective film tape. However, it faces problems such as non-adjustable alloy bonding strength, relatively complex structure, high cost, and volatilization of organic solvents.
[0003] The existing patent (CN209161917U) discloses a colored protective film adhesive tape for garage lenses with a pre-coating layer. Its structure includes a release layer, an adhesive layer, a primer layer, a base material and a pre-coating layer. This solution has the following defects : The production process is complicated, the substrate needs to be coated with primer twice, and then glue and release layer are applied; the coating of the primer will use a large amount of organic solvent; There are problems such as chip drop

Method used

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  • Car room lens protective film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as figure 1 As shown, this embodiment provides a protective film for automotive lenses, which includes a double-sided release layer 1 , a pressure-sensitive adhesive layer 2 , a substrate layer 3 and an alloy adhesive layer 4 which are stacked in sequence.

[0028] The double-sided release layer 1 is a double-sided PET release paper. The pressure-sensitive adhesive layer 2 is an acrylic pressure-sensitive adhesive, the thickness of the pressure-sensitive adhesive layer 2 is 15 μm, and the peeling force is 350-450 gf / inch. The substrate layer 3 is a PE film, which is used to isolate the pressure-sensitive adhesive layer 2 and the alloy adhesive layer 4 to prevent the two layers from sticking to each other. The alloy bonding layer 4 is a water-based polyurethane coating with a thickness of 2 μm. The raw materials of the alloy bonding layer 4 include water-based polyurethane and a curing agent, and the amount of the curing agent added is 1%wt.

[0029] This embodim...

Embodiment 2

[0034] This embodiment provides a protective film for a garage lens, which includes a double-sided release layer, a pressure-sensitive adhesive layer, a base material layer, and an alloy adhesive layer that are stacked in sequence.

[0035] The double-sided release layer is double-sided release paper. The pressure-sensitive adhesive layer is an acrylic pressure-sensitive adhesive, the thickness of the pressure-sensitive adhesive layer is 18 μm, and the peeling force is 400-500 gf / inch. The substrate layer is PE film. The alloy bonding layer is a water-based polyurethane coating with a thickness of 1 μm. The raw materials of the alloy adhesive layer include water-based polyurethane and curing agent, and the amount of curing agent added is 0.3% wt.

[0036] The difference between the preparation method of the garage lens protective film in this embodiment and that in Embodiment 1 is that step S3 is coated with a micro concave roller, and the other parts are the same.

Embodiment 3

[0038] This embodiment provides a protective film for a garage lens, which includes a double-sided release layer, a pressure-sensitive adhesive layer, a base material layer, and an alloy adhesive layer that are stacked in sequence.

[0039] The double-sided release layer is double-sided release paper. The pressure-sensitive adhesive layer is a water-based acrylic pressure-sensitive adhesive, and the thickness of the pressure-sensitive adhesive layer is 20 μm. The substrate layer is PP film. The alloy bonding layer is a water-based polyurethane coating with a thickness of 2 μm. The raw materials of the alloy adhesive layer include water-based polyurethane and curing agent, and the amount of curing agent added is 0.3% wt.

[0040] The preparation method of the garage lens protective film in this embodiment is the same as that in Embodiment 1.

[0041] The invention can control the bonding strength by controlling the thickness of the alloy bonding layer, the penetration depth ...

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Abstract

The invention discloses a car room lens protective film and a preparation method thereof. The car room lens protective film comprises a double-sided release layer, a pressure-sensitive adhesive layer, a base material layer and an alloy bonding layer which are sequentially stacked. The preparation method comprises the steps: coating one surface of the double-sided release layer with the pressure-sensitive adhesive layer, attaching the base material layer to the surface of the pressure-sensitive adhesive layer, and coating the surface of the base material layer with the alloy bonding layer. The car room lens protective film provided by the invention is simple in structure, only needs two-step coating, is simple in process, is strong in environmental protection property, and can be suitable for lenses with different refractive indexes and different types, and coating layers can be water-based coating layers.

Description

technical field [0001] The invention belongs to the technical field of lens protective films, and in particular relates to a garage lens protective film and a preparation method thereof. Background technique [0002] As people's requirements for the quality of life are getting higher and higher, people pay more and more attention to the problem of vision improvement, and the custom-made lenses of garages are more and more popular because of their differentiated customization and better use effect. However, the garage lens needs to use a special protective film for fixed protection during the processing and polishing process. At present, there are two main methods: one needs to brush a layer of epoxy resin paint or polyurethane paint on the surface of the protective film, and then use it with a chuck with a low melting point. Alloy bonding takes an additional 3-5 minutes. This fixing method is inefficient and high in cost; the second is a new solution developed recently, whic...

Claims

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Application Information

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IPC IPC(8): C09J7/24C09J7/30C09J7/38C09J7/40C09J175/04
CPCC09J7/243C09J7/385C09J7/405C09J7/30C09J175/04C09J2301/1242C09J2301/302C09J2423/046C09J2423/106C09J2467/005
Inventor 金闯孙鑫周义博
Owner SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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