Mixed solvent used for dissolving nitrated cellulose and nitrated cellulose product containing mixed solvent

A technology of nitrocellulose and mixed solvents, which is applied in the fields of fiber treatment, textiles and papermaking, etc. It can solve the problems of long residence time on the leather surface, harm to the environment by operators, and strong odor of solvents, etc., achieve good dissolution effect, improve physical properties, The effect of high emulsion stability
CN102604126AActive Publication Date: 2012-07-25德瑞(常州)特种材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
德瑞(常州)特种材料有限公司
Publication Date
2012-07-25

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Abstract

The invention provides a mixed solvent used for dissolving nitrated cellulose. The mixed solvent contains 1-50wt% of diethyl succinate, 10-60wt% of acetyl tributyl citrate, 10-80wt% of diethylene glycol butyl ether acetate and 1-40wt% of glycerol triacetate. The invention also provides a water-soluble nitrated cellulose product and a water-soluble nitrated cellulose product prepared by the mixed solvent provided by the invention. The nitrated cellulose product prepared by the mixed solvent is little in smell and low in toxicity, has good volatilization grade, and greatly improves the production environment of leather processing enterprises and alleviates the harm to the body health of workers on the basis of keeping the performances of the nitrated cellulose products.
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Description

technical field

[0001] The present invention relates to a mixed solvent system. In particular, the present invention relates to a solvent system for dissolving leather brighteners. More specifically, the present invention relates to a mixed solvent system for dissolving nitrocellulose-based brighteners for surface finishing in the tanning industry. Background technique

[0002] As a leather top coating material, leather brighteners have a vital impact on the appearance, hygiene and physical-mechanical properties of leather products. At present, the types of leather brighteners mainly include casein-based brighteners, nitrocellulose-based brighteners, acrylic resin-based brighteners, polyurethane-based brighteners, and wax-containing silicon-based leather brighteners. Among them, nitrocellulose brightener is one of the more commonly used leather brighteners.

[0003] The application of nitrocellulose brighteners on leather began in the 1920s and is divided into two categor...

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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