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Super-resilient PU foam double-sided adhesive tape and manufacturing method thereof

A technology of double-sided tape and resilience, which is applied in the direction of adhesives, film/sheet adhesives, pressure-sensitive films/sheets, etc., and can solve the problem of foam double-sided tape's general stickiness and comprehensive performance, and poor surface adhesion , easy to residual glue and other problems, to achieve the effect of excellent holding force, good adhesion, and not easy to residual glue

Inactive Publication Date: 2017-07-25
CHANGZHOU CHIKE PHOTOELECTRICITY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Different from other types of foam, the surface of PU foam is smooth, and the pressure-sensitive adhesive is directly coated on the PU foam. Generally, the adhesive force of the pressure-sensitive adhesive to the surface of the PU foam is very poor. The adhesive tape after direct coating is easy to use. Residue
Patent CN102977804A proposes a foam double-sided tape and its production process, but the patent only uses the corona process, and the obtained foam double-sided tape has average viscosity and comprehensive performance, and is prone to residual glue when used

Method used

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  • Super-resilient PU foam double-sided adhesive tape and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The foam base material is 1mm thick polyester PU foam base material 3

[0023] The first step is to corona treat one side of the PU foam with a voltage of 3000 volts, and the treatment gap is 1.5mm;

[0024] The second step is to corona treat the second side of the PU foam with the same voltage and treatment gap;

[0025] In the third step, primer 2 is applied to one side of the substrate with a coating amount of 50 g / square meter;

[0026] The fourth step is to evenly brush the treated pressure-sensitive adhesive on the first surface with a coating amount of 80 g / m2;

[0027] The 5th step, with the coating amount of 50 grams / square meter, primer is applied on the second surface of the substrate;

[0028] The sixth step is to evenly brush the treated pressure-sensitive adhesive on the second surface with a coating amount of 80 g / m2, and dry the pressure-sensitive adhesive layer at a temperature of 80°C-110°C for 2-3 minutes ;

[0029] The seventh step is to attach t...

Embodiment 2

[0032] The foam base material is 3mm thick polyester PU foam base material

[0033] The first step is to corona treat one side of the PU foam with a voltage of 5000 volts, and the treatment gap is 1.5mm;

[0034] The second step is to corona treat the second side of the PU foam with the same voltage and treatment gap;

[0035] In the third step, primer is applied to one side of the substrate with a coating amount of 40 grams per square meter;

[0036] The fourth step is to evenly brush the treated pressure-sensitive adhesive on the first surface with a coating amount of 80 g / m2;

[0037] The 5th step, with the coating amount of 40 grams / square meter, primer is applied on the second surface of the substrate;

[0038] The sixth step is to evenly brush the treated pressure-sensitive adhesive on the second surface with a coating amount of 80 g / m2, and dry the pressure-sensitive adhesive layer at a temperature of 80°C-110°C for 3-5 minutes ;

[0039] The seventh step is to atta...

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Abstract

The invention relates to a super-resilient PU foam double-sided adhesive tape and a manufacturing method thereof. The PU foam double-sided adhesive tape sequentially comprises one pressure-sensitive adhesive layer, a bottom sizing agent, a super-resilient PU foam substrate, the bottom sizing agent, one pressure-sensitive adhesive layer and a release film from top to bottom. A corona and bottom sizing agent coating pretreatment technology is combined with the pressure-sensitive adhesive special treatment, so the problems of difficult combination of PU foam and a pressure-sensitive adhesive, poor substrate sticking and easiness in adhesive residual during the use of the adhesive tape are effectively solved. The method has the advantages of simple process, and easiness in operation realization, and the produced PU foam double-sided adhesive tape has the advantages of good adhesion, excellent retention force, difficult adhesive residual during use, good resilience and excellent comprehensive performances.

Description

technical field [0001] The invention relates to a super-resilient PU foam double-sided adhesive tape and a manufacturing method thereof. Background technique [0002] PU foam double-sided tape not only has the characteristics of excellent sealing performance, good resilience, strong adhesion, good stickiness, waterproof, good hardness, good toughness and strong weight resistance, but also has heat preservation, heat insulation, sound absorption and shock absorption. , Flame retardant, anti-static, good air permeability, etc., so it has good application prospects in household appliances, instrumentation, automobile industry, battery industry and other fields. [0003] Different from other types of foam, the surface of PU foam is smooth, and the pressure-sensitive adhesive is directly coated on the PU foam. Generally, the adhesive force of the pressure-sensitive adhesive to the surface of the PU foam is very poor. The adhesive tape after direct coating is easy to use. Residue...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02
CPCC09J2475/006C09J7/22C09J7/25C09J7/29C09J7/38C09J7/50C09J2301/124C09J2301/302C09J2301/312
Inventor 蔡秀娟王学刚
Owner CHANGZHOU CHIKE PHOTOELECTRICITY TECH CO LTD
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