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Compression-resistant protective film and rolled film storage mechanism

A technology of protective film and roll film, applied in the field of pressure-resistant protective film and roll film storage mechanism, can solve the problems of unsightly residual glue, difficult to tear off, etc., and achieve the effect of excellent toughness

Pending Publication Date: 2020-04-10
HUIZHOU HAOMING SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adhesive layer of the common anti-pressure protective film is generally highly viscous, and once pasted on the product, it is difficult to tear off, leaving an unsightly adhesive residue

Method used

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  • Compression-resistant protective film and rolled film storage mechanism
  • Compression-resistant protective film and rolled film storage mechanism
  • Compression-resistant protective film and rolled film storage mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0047] In one embodiment, the pressure-sensitive adhesive layer is formed by coating a pressure-sensitive adhesive, and the pressure-sensitive adhesive includes the following components in parts by weight: 1 to 5 parts of polyurethane block copolymer composition, styrene-based thermoplastic elastomer 10-15 parts, 35-45 parts of tackifying resin, 25-35 parts of plasticizer, 5-10 parts of solid filler, 0.1-0.5 parts of antioxidant, 0.2-1.0 parts of photoinitiator and 0.5-0.8 parts of insect repellent fragrance share.

[0048] It should be noted that this pressure-sensitive adhesive uses polyurethane block copolymer composition and styrene-based thermoplastic elastomer as the main material, which is odorless, low-toxic and environmentally friendly, non-irritating and anti-allergic, biodegradable, and viscosifying After the resin is cross-linked, a higher viscosity is obtained. After the reconciliation of other components, a moderate viscosity and a suitable peeling degree are fin...

Embodiment 1A

[0077] Under vacuum conditions, 100 kg of polyether diol DL-2000 and 40 kg of 4,4-dicyclohexylmethane diisocyanate were added to 100 kg of ethyl acetate, and stirred evenly to obtain a first blend.

[0078] Control the temperature at 60° C., add 1 kg of dibutyltin dilaurate to the first blend, and stir evenly to obtain a second blend.

[0079] The temperature was controlled at 70° C., 20 kg of trimethylolmethane and 1 kg of dibutyltin dilaurate were sequentially added to the second blend, and stirred evenly to obtain a third blend.

[0080] The temperature was controlled at 140° C., 5 kg of amino resin was added into the third blend solution, stirred evenly, and a crosslinking reaction was carried out for 60 s to obtain the polyurethane block copolymer composition.

Embodiment 2A

[0082] Under vacuum conditions, 100 kg of polyether diol DL-2000 and 10 kg of 4,4-dicyclohexylmethane diisocyanate were added to 50 kg of ethyl acetate, and stirred evenly to obtain a first blend.

[0083] Control the temperature at 40° C., add 0.3 kg of dibutyltin dilaurate to the first blend, and stir evenly to obtain a second blend.

[0084] The temperature was controlled at 50° C., 5 kg of trimethylolmethane and 0.2 kg of dibutyltin dilaurate were sequentially added to the second blend, and stirred evenly to obtain a third blend.

[0085] The temperature was controlled at 105° C., 1 kg of amino resin was added to the third blend solution, stirred evenly, and a crosslinking reaction was carried out for 60 s to obtain the polyurethane block copolymer composition.

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Abstract

The invention relates to the field of protective films, and discloses a compression-resistant protective film and a rolled film storage mechanism. The compression-resistant protective film comprises an upper buffer layer, an upper elastic net, a lower elastic net, a lower buffer layer, a microsphere layer and an airbag layer, wherein the upper buffer layer is provided with a plurality of upper grooves; the upper elastic net is connected to one side surface of the upper buffer layer, and a plurality of upper net holes are formed in the upper elastic net; the lower elastic net is connected to the side face, away from the upper buffer layer, of the upper elastic net, and a plurality of lower net holes are formed in the lower elastic net; the lower buffer layer is connected to one side surface, far away from the upper elastic net, of the lower elastic net, and a plurality of lower grooves are formed in the lower buffer layer; the microsphere layer is contained between the upper buffer layer and the lower buffer layer, the microsphere layer comprises a plurality of porous microspheres, the upper grooves, the upper net holes, the lower net holes and the lower grooves jointly form a containing cavity, and the porous microspheres are contained in the containing cavity; and the airbag layer is connected to one side surface, far away from the lower elastic net, of the lower buffer layer.The compression-resistant protective film has the advantages of extrusion resistance, stamping resistance, favorable ductility and no residual adhesive after stripping.

Description

technical field [0001] The invention relates to the field of protective films, in particular to a pressure-resistant protective film and a roll film storage mechanism. Background technique [0002] According to the application, the protective film can be divided into digital product protective film, car protective film, household protective film, food fresh-keeping protective film and so on. With the popularization of digital products such as mobile phones in China, protective film has gradually become a general term for screen protective film, and its functions in the field of screen protective film are also varied, the earliest high-definition scratch-resistant, and now Hong Kong GLAUKE, 180 degrees And the favor of OK8 functional protective film. The material has experienced more than 5 years of development from the earliest PP material to the current popular AR material, and has gradually been accepted by the majority of mobile phone groups. [0003] At present, in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B1/06B32B3/08B32B3/30B32B5/02B32B5/26B32B7/12B32B1/00
CPCB32B3/30B32B5/028B32B5/26B32B3/085B32B7/12B32B2307/56B32B2307/536
Inventor 蒋友兵何振梅
Owner HUIZHOU HAOMING SCI & TECH
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