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Preparation process of attached environment-friendly synthetic leather

A preparation process and technology for synthetic leather, applied in the field of synthetic leather, to achieve the effects of ensuring bonding effect, enhancing viscosity and efficient penetration

Active Publication Date: 2020-12-22
福建锐信新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the bonding quality, the adhesive layer should not be too thick, and the adhesive layer that is not too thick needs to have good fluidity to ensure that it can be evenly scraped onto the semi-finished synthetic leather; but because the synthetic leather production process is dynamic , the synthetic leather is running continuously, the bending and vibration of the leather surface will make the adhesive layer with too good fluidity unable to maintain a uniform and flat distribution on the leather surface

Method used

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  • Preparation process of attached environment-friendly synthetic leather
  • Preparation process of attached environment-friendly synthetic leather
  • Preparation process of attached environment-friendly synthetic leather

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] see figure 1 ,, The preparation process of the attached environmental protection synthetic leather, including:

[0028] S1, smooth release paper unwinding;

[0029] S2, a coating;

[0030] S3, drying and cooling for the first time;

[0031] S4, two coatings;

[0032] S5, drying and cooling for the second time;

[0033] S6, apply adhesive, the adhesive is added with high magnetic permeability, low magnetic hysteresis tiny soft magnetic particles dispersed therein;

[0034] S7. Attaching to the base cloth. After scraping the adhesive and before attaching to the base cloth, apply a strong...

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Abstract

The invention discloses a preparation process of attached environment-friendly synthetic leather. The preparation process includes the steps of smooth release paper unwinding, primary coating, primarydrying and cooling, secondary coating, secondary drying and cooling, adhesive coating, bonding with base cloth, tertiary drying and cooling, paper-leather separation, release paper winding, syntheticleather embossing, and leather inspection and packaging. Tiny soft magnetic particles with high magnetic conductivity and low hysteresis are added into an adhesive and dispersed in the adhesive; anda strong magnetic field is applied to the adhesive in the moment after the adhesive is coated and before the adhesive is attached to the base cloth, so that the viscosity of the adhesive is increased,and the flowability of the adhesive is reduced. According to the preparation process of the attached environment-friendly synthetic leather, a bonding layer between a synthetic leather semi-finishedproduct and the base cloth has variable and controllable fluidity, so that the bonding layer has the most suitable fluidity in the two processes of adhesive coating and bonding with base cloth.

Description

technical field [0001] The invention belongs to the technical field of synthetic leather, and in particular relates to a preparation process of an adhesive-type environment-friendly synthetic leather. Background technique [0002] Solvent-based PU synthetic leather dry film transfer technology (also known as release paper transfer coating method) is the earliest industrial production method developed for PU synthetic leather. Slurry is scraped and coated on the surface of the release paper, and the solvent is volatilized to form a film by controlling a certain temperature, speed and other process conditions through an oven. Then apply an adhesive layer on it and compound it with the base cloth. After drying, solidifying, and cooling, it is peeled off from the release paper to obtain dry-process PU synthetic leather. In order to ensure the bonding quality, the adhesive layer should not be too thick, and the adhesive layer that is not too thick needs to have good fluidity to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06C23/04
CPCD06N3/0097D06N3/0077D06N3/0088D06N3/0043D06C23/04
Inventor 张新文
Owner 福建锐信新材料科技有限公司
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