Mixed resin capable of producing derma effects and used for synthetic leather and preparation method thereof

Abstract

The invention relates to a mixed resin used for synthetic leather and a preparation method thereof. The mixed resin capable of producing derma effects and used for the synthetic leather comprises, by weight, the alcohol soluble acrylate resin 2-8%, the alcohol soluble polyurethane resin 20-60%, the micronization plypropylene wax 2-6%, the tomentum powder 2-6%, the fatty alcohol-polyoxyethylene ether 2-5%, the organosilicon slip agent 0.5-3%, the n-butyl alcohol 10-40% and the balance diacetone alcohol. The synthetic leather manufactured by using the mixed resin has characteristics similar to the derma such as feel of fur of animals, produced natural fissures after being stressed and occurred natural color changing after being pulled, occurred repristination after external force disappears. The mixed resin adopts alcohol as solvent, so that environmental effects caused by solvent such as toluene and dimethylformamide in a productive process of the synthetic leather are reduced.

Description

technical field [0001] The invention relates to a mixed resin for synthetic leather and a preparation method thereof. Background technique [0002] Ordinary synthetic leather resins are all polyurethane resins, which cannot produce genuine leather effects such as wool, cracks, and natural discoloration. However, synthetic leather products have always pursued similarity or surpassing genuine leather in terms of function and style. Existing artificial leather effect resins for synthetic leather, animal hair feeling, cracks and discoloration effects can not be similar to real leather. [0003] The main disadvantages of the prior art are: [0004] 1) In terms of animal hair feeling: only polyurethane resin is used as the carrier resin in the mixed resin of the prior art. The polyurethane resin has strong adhesion and flexibility, so it is difficult to reveal the fluff in the mixed resin that can reflect the fur feeling of real fur, even by rubbing; [0005] 2) In terms of dis...

AI Technical Summary

Problems solved by technology

The prior art uses color-changing wax powders such as silicon dioxide and hydroxyorganosilicon, because they cannot produce the effect of stress phase separation, so the effect of changing color under force is not obvious

And if silicon dioxide wax is used, because silicon dioxide is an inorganic material and has hiding power, it will affect the display of other colors in the mixed resin;