A kind of preparation method of water-based bass with compression resistance and high resilience performance

Abstract

The present invention relates to a kind of preparation method of the water-based bass with pressure-resisting and high-resilience performance, and the method comprises the following steps: (1) preparing slurry: ① preparing water-based bass foaming slurry: adding 200 to 300 parts of water-based polyurethane resin in turn Add 10-30 parts of tap water, 2-5 parts of water-based dispersant, 1-3 parts of water-based cross-linking agent, 3-6 parts of water-based foam stabilizer, 3-6 parts of water-based foaming agent, 2-5 parts of medium-temperature microsphere hair Foaming agent, 20-40 parts of filling powder, 1-2 parts of water-based thickener, after stirring and mechanical foaming, a water-based bass foaming slurry with uniform cells is obtained; Add 85~95 parts of tap water to 1 part of demulsification curing agent, stir evenly to get the solidified solution; (2) Preparation of water-based base: apply the water-based base foam slurry evenly on the knitted or woven fabric, and solidify with the solidified solution After that, it is washed with water and pressed dry in turn, and finally enters the five-zone stepped heating oven for foaming and drying. The invention has the advantages of low cost, safety and environmental protection, pressure change resistance and strong air permeability.

Description

technical field [0001] The invention relates to the technical field of synthetic leather production, in particular to a method for preparing water-based bass with compression resistance and high resilience. Background technique [0002] Synthetic leather has the characteristics of soft and natural luster, soft hand feeling, strong leather feeling, flex resistance and anti-aging. It is the most ideal substitute for natural leather and is widely used in clothing, shoemaking, bags, furniture and other industries. However, compared with natural leather, synthetic leather products currently on the market have poorer compression and resilience performance, which leads to, for example, synthetic leather sofa seats in daily use, where they are in contact with people. Obvious dents, sinking and other deformation phenomena, although the deformed parts will recover slowly, but in the process of long-term use, the recoverability of the deformed parts will gradually decrease, resulting i...

AI Technical Summary

Problems solved by technology

However, compared with natural leather, synthetic leather products currently on the market have poorer compression and resilience performance, which leads to, for example, synthetic leather sofa seats in daily use, where they are in contact with people. Obvious dents, sinking and other deformation phenomena, although the deformed parts will recover slowly, but in the process of long-term use, the recoverability of the deformed parts will gradually decrease, resulting in permanent dents and sinking, which will affect the overall appearance of the sofa And the feeling of use, and the air permeability of the deformed part will be seriously reduced. When people sit in this part for a long time, the buttocks will have obvious damp feeling

In response to these shortcomings, the current common synthetic leather products are mainly improved by changing the properties of their formula slurry, but the effect is limited, and the cost will be significantly increased or the physical properties will be significantly reduced