Special polyurethane resin for soft basketball leather and preparation method of special polyurethane resin

A technology of polyurethane resin and basketball leather, which is applied in the direction of textiles and papermaking, etc. It can solve the problems of poor washing effect of resin, poor softness and comfort, dry surface feel, etc., and achieve soft and full hand feeling, soft hand feeling, excellent hydrolysis resistance performance effect
CN112409562AInactive Publication Date: 2021-02-26华大化学(安徽)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
华大化学(安徽)有限公司
Publication Date
2021-02-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses special polyurethane resin for soft basketball leather and a preparation method thereof, and relates to the technical field of chemical products and preparation methods thereof. The material is prepared from the following components in parts by weight: 5.37-5.98 parts of MDI, 70-100 parts of DMF, 12.33-13.70 parts of polyester polyol, 5.14-5.71 parts of polyether polyol, 3.01-3.42 parts of polycarbonate polyol, 0.77-1.08 parts of EG, 0.03-5 part of antioxidant, 0.003-3 part of phosphoric acid, 0.02-3 part of CATA, 0.03-5 part of malic acid, 0.05-7 part of CH3OH, 0.5-3 parts of HD-1, 0.5-5 parts of HD-2, and 2-4 parts of HD-3. According to the special polyurethane resin for the soft basketball leather and the preparation method of the special polyurethane resin, in the aspect of formula design, polyhydric alcohols are selected from high-molecular-weight polyester polyhydric alcohols and high-molecular-weight polyether polyhydric alcohols in a mixed mode, and dueto selection of the high-molecular-weight polyester polyhydric alcohols, a polyurethane soft segment is softer and softer and fuller in hand feeling; due to the introduction of the polyether polyol with large molecular weight, the hand feeling of the basketball leather is softer, and the leather is endowed with excellent surface wet and astringent touch feeling and better resilience.
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Description

technical field

[0001] The invention relates to the technical field of chemical products and preparation methods thereof, in particular to a special polyurethane resin for soft basketball leather and its preparation method and application. Background technique

[0002] At present, basketball leather in the market generally requires the characteristics of high mechanical properties such as plump and comfortable feel, excellent rebound, wear resistance and scratch resistance. Currently, the resins used to prepare basketball leather are mainly concentrated in 30-50 modulus. Excellent mechanical properties and resilience, but due to the slightly high modulus, the surface feels relatively dry, and the softness and comfort are relatively poor.

[0003] At the same time, the existing basketball leather preparation process generally adopts a one-step large impregnation process, the thickness of the leather is thicker, and the filler is less. In general, the resin in the process of l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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