WO2017088084A1

WO2017088084A1 - Aqueous skin-touch treatment agent for synthetic leather and preparation method for same

Info

Publication number: WO2017088084A1
Application number: PCT/CN2015/000852
Authority: WO
Inventors: 陈勇刚
Original assignee: 江苏宝泽高分子材料股份有限公司
Priority date: 2015-11-27
Filing date: 2015-12-04
Publication date: 2017-06-01
Also published as: CN105316948A

Abstract

The present invention relates to an aqueous skin-touch treatment agent for synthetic leather, used for the final processing stages of synthetic leather, and comprising the following components: an aqueous skin-touch resin, an aqueous thickening agent, a defoaming agent, a levelling agent, water, and an aqueous skin-touch sensitiser. The present invention also relates to a method for preparing the aqueous skin-touch treatment agent for synthetic leather. The components of the aqueous skin-touch treatment agent for synthetic leather in the present invention mutually coordinate and jointly interact; following treatment, the texture is unique, and leather produced using said treatment agent feels like the skin of a baby, and has a clear colour and good overall effects; the dispensed diluted spray solution has good storage stability and the pigments thereof do not easily settle; and the resin has matting properties and a pleasant texture. The production process does not require the addition of fumed silica matting powder. The aqueous skin-touch treatment agent for synthetic leather in the present invention is a novel material for final-stage treatment, and can be used in existing synthetic leather production lines; the process is simple, does not require changes to production equipment, and will not increase production costs.

Description

Synthetic leather watery skin feel treatment agent and preparation method thereof

Technical field

The present invention relates to the field of surface treatment agents for synthetic leather, and in particular to a synthetic skin water-based skin feel treatment agent for a synthetic leather back-end process, and the present invention also relates to a method for preparing the synthetic leather water-based skin feel treatment agent. .

Background technique

The synthetic leather surface treatment agent can be surface-coated according to the type of the product, which can improve the brightness, color and feel of the synthetic leather. However, as consumers demand higher and higher color and feel on the surface of the leather, it is necessary not only to increase the touch of the synthetic leather, but also to ensure the brightness and color of the surface of the synthetic leather. However, the existing surface treatment agents can not meet the increasing demands of consumers for the brightness and feel of synthetic leather. Therefore, there is an urgent need for a comprehensive effect of improving the touch of synthetic leather and improving the feel, brightness and gloss of synthetic leather. Treatment agent.

Summary of the invention

In order to solve the above problems and drawbacks, an object of the present invention is to provide an aqueous skin feel treatment agent for synthetic leather. The invention also provides a preparation method of the synthetic skin water-based skin feel treatment agent.

The synthetic skin water-based skin feel treatment agent of the present invention is achieved by the following technical solutions:

The invention relates to a synthetic skin water-based skin feel treatment agent, which is used in the back-stage process of synthetic leather, and comprises the following components: water-based skin-sensing resin, water-based thickener, antifoaming agent, leveling agent, water, water-based skin feel Agent.

Further, the components are formulated as follows: 60-80 parts by weight of the aqueous skin-sensitive resin, 1-3 parts by weight of the aqueous thickener, 0.1-0.3 parts by weight of the antifoaming agent, and 0.3-0.8 parts by weight of the leveling agent. 15-20 parts by weight of water and 0.5-2 parts by weight of aqueous skin feeling agent.

Further, the components are formulated as follows: 65-75 parts by weight of the aqueous skin-sensitive resin, 1.5-2.5 parts by weight of the aqueous thickener, 0.2-0.3 parts by weight of the antifoaming agent, and 0.4-0.7 parts by weight of the leveling agent. 16-19 parts by weight of water, 0.7-1.8 parts by weight of aqueous skin feeling agent.

Further, the components are as follows: 75 parts by weight of the aqueous skin-sensitive resin, 2.5 parts by weight of the aqueous thickener, 0.3 parts by weight of the antifoaming agent, 0.7 parts by weight of the leveling agent, 18 parts by weight of water, and water-based skin. The feeling agent was 1.5 parts by weight.

The invention also provides a preparation method of the aqueous skin-sensing treatment agent for synthetic leather, comprising the following steps:

Weighing the components according to the weight ratio, adding water-based skin-sensing resin, water, antifoaming agent, leveling agent, water-based thickener and water-based skin feeling agent in sequence, that is, the synthetic leather water-based skin Sensitive treatment agent.

Further, the components are formulated as follows: 60-80 parts by weight of the aqueous skin-sensitive resin, 1-3 parts by weight of the aqueous thickener, 0.1-0.3 parts by weight of the antifoaming agent, 0.3-0.8 parts by weight of the leveling agent, water 15-20 parts by weight, aqueous skin feeling agent 0.5-2 parts by weight.

Further, all the steps are carried out under normal temperature and normal pressure.

Due to the adoption of the above technical solutions, the present invention has the following beneficial technical effects as compared with the prior art:

(1) The aqueous skin-sensing treatment agent of the present invention is a novel polyurethane system in which water is used as a dispersion medium instead of an organic solvent. Since water-based polyurethane uses water as a dispersion medium, the process does not require an organic solvent, so there is no pollution to the environment and no operation to the operator. Health hazards, and waterborne polyurethanes have low odor, are not easy to burn, and the process is safe and reliable. Waterborne polyurethane uses water as solvent, has no pollution, is safe and reliable, has excellent mechanical properties, good compatibility and easy modification.

(2) The components of the aqueous skin-sensing treatment agent of the present invention are coordinated and act together, and the handle is unique after treatment. The leather made by the treatment agent has the feeling of the baby's skin, the color is clear, and the comprehensive effect is good. The sprayed diluted solution has good storage stability, the pigment is not easy to settle, the resin itself has matting property, and has a good hand feeling. There is no need to add fumed silica matting powder during the process;

(3) There is basically no toxic -NCO group remaining in the aqueous polyurethane system due to aqueous polyurethane The ester has no toxic organic solvent, so there is no toxic solvent residue in the product, the product is safe, environmentally friendly, and has no export restrictions;

(4) The moisture permeability of water-based polyurethane products is much better than that of similar solvent-based polyurethane products. Because water-based polyurethanes have strong hydrophilicity and therefore have strong binding ability with water, their products have good moisture permeability. Vapor permeability;

(5) Water as the continuous phase, so that the viscosity of the aqueous polyurethane system is independent of the molecular weight of the polyurethane resin, and the solvent-based polyurethane solution having the same solid content has a lower viscosity, is convenient to process, and is easy to handle;

(6) The aqueous system of water-based polyurethane can be blended or copolymerized with other aqueous emulsions or copolymerized, which can reduce the cost or obtain a polyurethane emulsion with more diversified properties, thus bringing synthetic leather products with different styles and properties. To meet the needs of various consumers; and, due to the high solvent prices in recent years and the strict restrictions on the use of organic solvents and wastes by the environmental protection sector, the replacement of solvent-based polyurethanes by aqueous polyurethanes has become an important development direction;

(7) The finished product prepared by using the water-based skin-sensing treatment agent of the present invention has a full hand feeling, is soft in texture, comfortable, and has the advantages of being non-combustible, non-toxic, and non-polluting. The oxygen permeability, moisture permeability, low temperature resistance, dryness and wetness resistance, and aging resistance of the finished leather were compared with the synthetic leather after solvent-based polyurethane coating. The water-based polyurethane replaces the traditional solvent-based polyurethane to complete the finishing of the synthetic leather. The leather has better permeability, moisture permeability, low-temperature resistance, dry-wet resistance and the like. The whole process has no solvent emission and is environmentally friendly. ;

(8) The product can also be researched and developed according to demand, with good market application value;

(9) The synthetic skin water-based skin feel treatment agent of the present invention is a novel material for the latter stage treatment, and can be used in the existing synthetic leather production line, and the process is simple, no need to change the production equipment, and the production cost is not increased.

detailed description

In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail below with reference to the embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

The synthetic skin water-based skin feel treatment agent is composed of the following components: water-based skin feel resin 60 Parts by weight, 1 part by weight of an aqueous thickener, 0.1 part by weight of an antifoaming agent, 0.3 part by weight of a leveling agent, 15 parts by weight of water, and 0.5 part by weight of an aqueous skin feeling agent.

The synthetic leather aqueous skin feel treatment agent is prepared by sequentially adding 60 parts by weight of a water-based skin-sensing resin, 15 parts by weight of water, 0.1 part by weight of an antifoaming agent, and 0.3 parts by weight under normal temperature and normal pressure. The leveling agent, 1 part by weight of the aqueous thickener and 0.5 part by weight of the aqueous skin feeling agent are stirred for at least 30 minutes until the mixture is uniformly mixed, that is, the synthetic leather aqueous skin feel treating agent is obtained. The performance indexes of the obtained synthetic leather water-based skin feel treatment agent are shown in Table 1.

The stirring and the like used in the above preparation are all methods conventional in the art.

Example 2

The synthetic skin water-based skin feel treatment agent is composed of the following components: 65 parts by weight of the aqueous skin-sensitive resin, 1.5 parts by weight of the aqueous thickener, 0.2 parts by weight of the antifoaming agent, 0.4 parts by weight of the leveling agent, and 16 parts by weight of water. Parts, water-based skin feeling agent 0.8 parts by weight.

The synthetic leather aqueous skin treatment agent is prepared by sequentially adding 65 parts by weight of an aqueous skin-sensitive resin, 16 parts by weight of water, 0.2 parts by weight of an antifoaming agent, and 0.4 parts by weight under normal temperature and normal pressure. The leveling agent, 1.5 parts by weight of the aqueous thickener and 0.8 parts by weight of the aqueous skin feeling agent are stirred for at least 30 minutes until the mixture is uniformly mixed, that is, the synthetic leather aqueous skin feel treating agent is obtained. The performance indexes of the obtained synthetic leather water-based skin feel treatment agent are shown in Table 1.

Example 3

The synthetic skin water-based skin feel treatment agent is composed of the following components: 70 parts by weight of the aqueous skin-sensitive resin, 2 parts by weight of the aqueous thickener, 0.2 parts by weight of the antifoaming agent, 0.5 parts by weight of the leveling agent, and 17 parts by weight of water. Parts, water-based skin feeling agent 1.2 parts by weight.

The synthetic leather aqueous skin feel treatment agent is prepared by sequentially adding 70 parts by weight of an aqueous skin-sensitive resin, 17 parts by weight of water, 0.2 parts by weight of an antifoaming agent, and 0.5 parts by weight under normal temperature and normal pressure. The leveling agent, 2 parts by weight of the aqueous thickener and 1.2 parts by weight of the aqueous skin feeling agent are stirred for at least 30 minutes until the mixture is uniformly mixed, that is, the synthetic leather aqueous skin feel treating agent is obtained. The performance indexes of the obtained synthetic leather water-based skin feel treatment agent are shown in Table 1.

Example 4

The synthetic skin water-based skin feel treatment agent is composed of the following components: 75 parts by weight of the aqueous skin-sensitive resin, 2.5 parts by weight of the aqueous thickener, 0.3 parts by weight of the antifoaming agent, 0.7 parts by weight of the leveling agent, and 18 parts by weight of water. Parts, water-based skin feeling agent 1.5 parts by weight.

The synthetic leather aqueous skin feel treatment agent is prepared by sequentially adding 75 parts by weight of an aqueous skin-sensitive resin, 18 parts by weight of water, 0.3 parts by weight of an antifoaming agent, and 0.7 parts by weight under normal temperature and normal pressure. The leveling agent, 2.5 parts by weight of the aqueous thickener and 1.5 parts by weight of the aqueous skin feeling agent are stirred for at least 30 minutes until the mixture is uniformly mixed, that is, the synthetic leather aqueous skin feel treating agent is obtained. The performance indexes of the obtained synthetic leather water-based skin feel treatment agent are shown in Table 1.

Example 5

The synthetic skin water-based skin feel treatment agent is composed of the following components: 80 parts by weight of the aqueous skin-sensitive resin, 3 parts by weight of the aqueous thickener, 0.2 parts by weight of the antifoaming agent, 0.8 parts by weight of the leveling agent, and 20 parts by weight of water. Parts, water-based skin feeling agent 2 parts by weight.

The synthetic leather aqueous skin treatment agent is prepared by sequentially adding 80 parts by weight of an aqueous skin-sensitive resin, 20 parts by weight of water, 0.2 parts by weight of an antifoaming agent, and 0.8 parts by weight under normal temperature and normal pressure. The leveling agent, 3 parts by weight of the aqueous thickener and 2 parts by weight of the aqueous skin feeling agent are stirred for at least 30 minutes until the mixture is uniformly mixed, that is, the synthetic leather aqueous skin feel treating agent is obtained. The performance indexes of the obtained synthetic leather water-based skin feel treatment agent are shown in Table 1.

Table 1

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. The invention is intended to be modified or equivalently substituted without departing from the spirit and scope of the invention. Within the scope of protection.

Claims

An aqueous skin feel treatment agent for synthetic leather, which is used in a post-stage process for synthetic leather, which comprises the following components: water-based skin-sensing resin, water-based thickener, antifoaming agent, leveling agent, water, A water-based skin feel sensor.
The aqueous skin feel treatment agent for synthetic leather according to claim 1, wherein the components are formulated as follows: 60-80 parts by weight of the aqueous skin-sensitive resin, and 1-3 parts by weight of the aqueous thickener. The antifoaming agent is 0.1-0.3 parts by weight, the leveling agent is 0.3-0.8 parts by weight, the water is 15-20 parts by weight, and the aqueous skin feeling agent is 0.5-2 parts by weight.
The aqueous skin feel treatment agent for synthetic leather according to claim 2, wherein the components are formulated as follows: 65-75 parts by weight of the aqueous skin-sensitive resin, and 1.5-2.5 parts by weight of the aqueous thickener. The antifoaming agent is 0.2-0.3 parts by weight, the leveling agent is 0.4-0.7 parts by weight, the water is 16-19 parts by weight, and the aqueous skin feeling agent is 0.7-1.8 parts by weight.
The aqueous skin feel treatment agent for synthetic leather according to claim 2 or 3, wherein the components are formulated as follows: 75 parts by weight of the aqueous skin-sensitive resin, 2.5 parts by weight of the aqueous thickener, and defoaming. The agent was 0.3 parts by weight, the leveling agent was 0.7 parts by weight, the water was 18 parts by weight, and the aqueous skin feeling agent was 1.5 parts by weight.
A method for preparing an aqueous skin feel treatment agent for a synthetic leather according to the above claims, comprising the steps of:

The components are weighed according to the weight ratio, and the water-based skin-sensing resin, water, antifoaming agent, leveling agent, aqueous thickener and water-based skin feeling agent are sequentially added in sequence, and the synthetic leather is obtained by stirring uniformly. A water-based skin feel treatment agent.
The method for preparing an aqueous skin-sensing treatment agent for synthetic leather according to claim 5, wherein each component is formulated as follows: 60-80 parts by weight of the aqueous skin-sensitive resin, and 1-3 parts by weight of the aqueous thickener The antifoaming agent is 0.1-0.3 parts by weight, the leveling agent is 0.3-0.8 parts by weight, the water is 15-20 parts by weight, and the aqueous skin feeling agent is 0.5-2 parts by weight.
The method for producing an aqueous skin feel treatment agent for synthetic leather according to claim 5, wherein all the steps are carried out under normal temperature and normal pressure.