Multifunctional water-based surface treating agent for microfiber leather and preparation method of multifunctional water-based surface treating agent

Abstract

The invention provides a multifunctional water-based surface treating agent for microfiber leather and a preparation method of the multifunctional water-based surface treating agent. The multifunctional water-based surface treating agent is prepared from the following components in parts by weight: 30-50 parts of water-based polycarbonate resin, 5-10 parts of sodium alginate microsphere emulsion,6-12 parts of modified polyurethane fluff powder dispersion liquid, 0.5-1.5 parts of a cross-linking agent, and 100-150 parts of water in an evenly-mixing mode. During using, the multifunctional water-based surface treating agent is coated on the surface of the microfiber leather in a rolled mode, the coating amount is controlled to be 15-45 g / m<2>, the drying temperature is 100-130 DEG C, and thedrying time is 2-5 minutes, and after the microfiber leather is cooled, the surface of the microfiber leather can have good extinction feeling, smooth feeling, velvet feeling, leather feeling and hydrophobicity. The multifunctional water-based surface treating agent is prepared by adopting a multiple modification compounding technology, the surface of the microfiber leather can have the good extinction feeling, smooth feeling, velvet feeling, leather feeling and hydrophobicity, the production process is clean and environmentally friendly, and an application technique is simple and efficient.

Description

technical field [0001] The invention relates to a superfiber leather surface treatment agent, in particular to a multifunctional water-based surface treatment agent for superfiber leather and a preparation method thereof. Background technique [0002] Microfiber leather is a composite material that simulates the structure and performance of natural leather and can be used as a substitute for natural leather. Usually non-woven fabric is used to simulate the mesh layer, and microporous polyurethane coating is used to simulate the grain layer. The front and back of the obtained synthetic leather are very similar to leather, and have a certain degree of air permeability, which is closer to natural leather than ordinary artificial leather. Widely used in making shoes, boots, bags and ball games. [0003] The surface of microfiber leather is shiny and has a strong plastic feeling. In order to make the appearance and feel of microfiber leather closer to natural leather, the surfac...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the microfiber leather surface treatment agents used are solvent-based systems, because the surface treatment will consume a large amount of solvents, and the conventional recovery rate is only 90%. The organic solvents discharged into the atmosphere have a great impact on the human body and the environment. hazards, while the residue of solvents in the product will lead to product safety issues

[0005] In order to solve the above problems, the development of water-based matting surface treatment agents for microfiber leather to replace solvent-based treatment agents is the main way of technology development at present. The products are mainly water-based polyurethanes, but there are still the following problems: First, most products use two Silicon oxide is the main matting material, and it is difficult to achieve deep and natural matting; second, most products have poor hand feeling; third, most products have poor performance and are not water resistant