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Dry type polyurethane resin for pasting gold-silver film and preparation thereof

A polyurethane resin, dry technology, applied in the field of dry polyurethane resin for shoe leather and luggage leather, can solve the problem that the film is easy to fall off, scratch and wear resistance and poor bending, and the combination of gold and silver film and dry surface layer is not good. and other problems, to achieve the effect of improving scratch and wear resistance and bending performance, and reducing surface density

Active Publication Date: 2009-07-15
HEFEI ANLI POLYURETHANE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to prepare a kind of dry polyurethane resin that utilizes the release paper transfer method to paste gold and silver film products, to solve the problem that the gold and silver film is not well combined with the dry surface layer in the production process of the gold and silver film class synthetic leather. The film is easy to fall off when used, and it is scratch-resistant, wear-resistant and poorly curved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0030] Raw material name Weight (unit: Kg)

[0031] PET—1 200

[0032] PET—2 700

[0033] 1,4-butanediol 110

[0034] 4,4-Diphenylmethane diisocyanate 545

[0035] Coupling agent 10

[0036] Antioxidant I-1010 2.0

[0037] UV absorber UV-328 1.0

[0038] Catalyst 0.2

[0039] N,N-Dimethylformamide 3000

[0040] Methyl ethyl ketone 700

[0041] PET-1 is a polyester polyol with a molecular weight of 3000. The raw materials and formula used are 4000Kg of adipic acid, 1300Kg of ethylene glycol, 900Kg of 1,4-butanediol, and 0.5Kg of catalyst MB20 (TPT).

[0042] PET-2 is a polyester polyol with a molecular weight of 2000. The raw materials and formula used are 3000Kg of adipic acid, 200Kg of ethylene glycol, 1800Kg of 1,4-butanediol, and 0.4Kg of catalyst MB20 (TPT).

[0043] The dry type polyurethane resin used for pasting gold and silver film of the present invention is prepared according to the following steps:

[0044] 1. Put various polyol compounds, antioxidant I-10...

Embodiment approach 2

[0049] Raw material name Weight (unit: Kg)

[0050] PET—1 200

[0051] PET—2 700

[0052] 1,6-Hexanediol 160

[0053] 4,4-Diphenylmethane diisocyanate 545

[0054] Coupling agent 10

[0055] Antioxidant I-1010 2.0

[0056] UV absorber UV-328 1.0

[0057] Catalyst 0.2

[0058] N,N-Dimethylformamide 3000

[0059] Methyl ethyl ketone 800

[0060] PET-1 is a polyester polyol with a molecular weight of 3000. The raw materials and formula used are 4000Kg of adipic acid, 1300Kg of ethylene glycol, 900Kg of 1,4-butanediol, and 0.5Kg of catalyst TPT.

[0061] PET-2 is a polyester polyol with a molecular weight of 2000. The raw materials and formula used are 3000Kg of adipic acid, 200Kg of ethylene glycol, 1800Kg of 1,4-butanediol, and 0.4Kg of catalyst TPT.

[0062] The dry type polyurethane resin used for pasting gold and silver film of the present invention is prepared according to the following steps:

[0063] 1. Put various polyol compounds, antioxidant I-1010, solvent DMF,...

Embodiment approach 3

[0068] In order to verify that the dry polyurethane resin used in the present invention has good bonding properties with the gold and silver film, the resin prepared by the above-mentioned embodiment is made into leather according to the following formula and the current normal process of dry veneering, and the specific formula is as follows:

[0069] Resin 100

[0070] DMF60

[0071] Pigment 15

[0072] leveling agent 1

[0073] Stripping agent 0.5

[0074] After testing, the dry polyurethane synthetic leather made with the above-mentioned formula can be heat-bonded with the gold and silver film at 120°C-130°C, and has good bonding fastness, excellent scratch resistance, wear resistance and bending performance, and does not affect the gold and silver film. metallic luster.

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PUM

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Abstract

The invention discloses a dry polyurethane resin for sticking a gold / silver film and a method for preparing the same. The raw materials of the dry polyurethane resin contain: diisocyanate polyalcohol compound, coupling agent, micro molecular dibastic alcohol chain extender having a molecular weight of 62-200g / mol, catalyst, auxiliary agent and solvent. During the synthesis of the polyurethane resin, the soft segment and the hard segment in the polyurethane chain segment are reasonably separated by adopting a special synthesis process and the coupling agent is grafted in the polyurethane chain segment, such that, during the film forming, the resin synthesized has reduced surface tightness, the scratch resistance and the abrasion resistance are not obviously changed, and the resin is easy to combine with the gold / silver film. Besides, the grafted coupling agent promotes the combination of the polyurethane material and the gold / silver film. The dry polyurethane resin for sticking a gold / silver film completely solves the prior defect of poor combination of the gold / silver film and the dry polyurethane resin. When in use, the dry polyurethane resin for sticking a gold / silver film is easy to combine with the gold / silver film, such that the scratch resistance, abrasion resistance and the bending performance of the finished products can be improved greatly.

Description

technical field [0001] The invention relates to a dry polyurethane resin for pasting gold and silver films, which is a dry polyurethane resin for shoe leather and bag leather, and also relates to a preparation method thereof. Background technique [0002] Film-based synthetic leather is favored by the market for its unique bright metallic luster, simple process conditions, and low cost. At present, the dry surface layer resin used in the film products produced by the release paper transfer method is very dense after the film is formed, which ensures the scratch resistance and wear resistance of the leather surface, but it also creates a big obstacle for the subsequent film. Gold and silver The poor bonding between the film and the dense dry surface layer makes the gold and silver film easy to fall off during use of this type of product, and the scratch resistance, wear resistance and bending performance are not good. As a result, its application is greatly limited. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/42C08G18/32
Inventor 唐涛宗军业
Owner HEFEI ANLI POLYURETHANE NEW MATERIAL
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