TPU adhesive, hot melt adhesive film and application

A hot-melt adhesive film and adhesive technology, applied in the direction of adhesive, adhesive type, heat-activated film/sheet, etc., can solve problems such as affecting the comfort of seamless sportswear, failing to improve the quality and beauty of clothing, and shortening service life. , to achieve the effect of being conducive to large-scale and rapid industrial operation, low tensile deformation rate, and overcoming poor resilience

Active Publication Date: 2020-04-21
GUANGDONG YETOM NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although the TPU hot-melt adhesive film on the market has a certain degree of elasticity and bonding strength, it still performs poorly in sportswear and underwear that require high elasticity, mainly due to low adhesion and poor washability. Poor, low tensile strength, large tensile deformation, etc.
Especially applied to the bottoms of seamless sports pants, bras, and side bones of sportswear, which affects the comfort of seamless sportswear, shortens the service life, and cannot improve the quality and appearance of clothing

Method used

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  • TPU adhesive, hot melt adhesive film and application
  • TPU adhesive, hot melt adhesive film and application
  • TPU adhesive, hot melt adhesive film and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A kind of TPU adhesive comprises the following components by weight:

[0048]

[0049] The adipate-based polyester TPU particle A is prepared from the following raw materials by weight percentage through a twin-screw extruder: 70% polyethylene adipate 1000, 27% 4,4-diphenyl Methyl methane diisocyanate, 3% 1,4-butanediol;

[0050] The adipate-based polyester TPU particle B is prepared from the following raw materials by weight percentage through a twin-screw extruder: 65% polybutylene adipate 1000, 30% 4,4-diphenyl methyl methane diisocyanate, 5% neopentyl glycol.

[0051] The preparation method of above-mentioned TPU adhesive comprises the following steps:

[0052] Adipic acid-based polyester TPU particles A (melt mass flow rate is 45g / 10 minutes, softening point is 110 ° C), adipic acid-based polyester TPU particles B (melt mass flow rate is 20g / 10 minutes, the softening point is 130°C), modified copolyester 3112, polycarbodiimide, antioxidant 1010, and ultraviol...

Embodiment 2

[0058] A kind of TPU adhesive comprises the following components by weight:

[0059]

[0060] The adipate-based polyester TPU particles are prepared from the following raw materials by weight percentage through a twin-screw extruder: 79% polyethylene adipate 2000, 18% 4,4-diphenyl Methane diisocyanate and 3% 1,4-butanediol;

[0061] The polytetrahydrofuran-based polyether-type TPU particles are prepared from the following raw materials by weight percentage through a twin-screw extruder: 60% polytetrahydrofuran diol 1500, 29% isophorone diisocyanate, 2% 1,4 -Butanediol and 9% Neopentyl Glycol.

[0062] The preparation method of above-mentioned TPU adhesive comprises the following steps:

[0063] Adipic acid polyester type TPU particles (melt mass flow rate is 35g / 10 minutes, softening point is 120 ℃), polytetrahydrofuran polyether type TPU particles (melt mass flow rate is 25g / 10 minutes, softening point The point is 135°C), polycarbodiimide, antioxidant 1076, and ultravi...

Embodiment 3

[0069] A kind of TPU adhesive comprises the following components by weight:

[0070]

[0071]

[0072] The adipate-based polyester TPU particle A is prepared by a twin-screw extruder from the following raw materials by weight percentage: 70% polybutylene adipate 1000, 27% 4,4-diphenyl methyl methane diisocyanate and 3% 1,4-butanediol;

[0073] The adipate-based polyester TPU particles B are prepared from the following raw materials by weight percentage through a twin-screw extruder: 60% polyhexamethylene adipate 1000, 30% 4,4'-di Cyclohexylmethane diisocyanate, 6% 1,4-butanediol and 7% neopentyl glycol.

[0074] The preparation method of above-mentioned TPU adhesive comprises the following steps:

[0075] Adipic acid-based polyester TPU particles A (melt mass flow rate is 30g / 10 minutes, softening point is 120 ° C), adipic acid-based polyester TPU particles B (melt mass flow rate is 50g / 10 Minutes, the softening point is 115°C), polycarbodiimide, modified copolyester ...

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Abstract

The invention relates to the field of polymer adhesives, in particular to a TPU adhesive, a hot melt adhesive film and an application. The TPU adhesive is prepared from the following components in parts by weight: 75 to 97 parts of TPU particles, 0 to 15 parts of modified polyester, 2 to 10 parts of an anti-hydrolysis agent and 0.1 to 1 part of an auxiliary agent. The hot melt adhesive film sequentially comprises a first adhesive layer, a matrix layer and a second adhesive layer, the first adhesive layer is made of the TPU adhesive, and the second adhesive layer is made of the TPU adhesive. The base layer is a screen cloth or a thin film. The hot melt adhesive film with the three-layer composite structure is soft in hand feeling, high in tensile strength, excellent in tensile resilience, good in adhesion and washing resistance and capable of being widely applied to seamless adhesion of elastic clothes such as underwear, underpants, bras, mold cups, shoulder straps, shapewear and sportswear.

Description

technical field [0001] The invention relates to the field of polymer adhesives, in particular to a TPU adhesive, a hot-melt adhesive film and its application. Background technique [0002] Polyurethane is a rapidly developing multifunctional polymer synthetic material. Due to the variety of raw materials and the adjustability of molecular structure, it can be made into various product forms such as foam plastics, elastomers, coatings, adhesives, etc., and has a wide range of uses. . Similarly, by adjusting raw materials and formulations, various types of polyurethane adhesives suitable for bonding between various materials and for various purposes can be designed. Polyurethane adhesives have excellent flexibility, impact resistance, chemical resistance, and have particularly excellent low temperature resistance and abrasion resistance. [0003] In recent years, with the development of science and technology, knitted clothing has an increasingly broad market. In the tradit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/06C09J175/08C09J167/00C09J11/08C09J11/06C09J7/21C09J7/25C09J7/35
CPCC09J175/06C09J11/08C09J11/06C09J7/35C09J7/255C09J175/08C09J7/21C09J7/25C09J2400/263C09J2467/006C09J2475/00C09J2475/006C09J2301/124C09J2301/304C08L75/06C08L67/00C08L79/00C08K5/1345
Inventor 梁坤焕欧阳效明梁锋
Owner GUANGDONG YETOM NEW MATERIALS CO LTD
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