Biodegradable additive for improving property of PVA-substituted sizing agent

A technology of biodegradation and auxiliaries, applied in the field of textile auxiliaries, to achieve the effect of excellent biodegradability and low preparation cost
CN104594041AInactive Publication Date: 2015-05-06JIANGNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGNAN UNIV
Publication Date
2015-05-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a biodegradable additive for improving the property of a PVA-substituted sizing agent. The biodegradable additive is prepared from the following steps: by adopting agricultural side products and wastes as materials, obtaining a biodegradable mixture by alkaline extraction, and preparing the additive based on the agricultural side products and the wastes; or adopting anhydride (acetic anhydride, butanedioic anhydride and the like), unsaturated polar monomers (crylic acid, acrylonitrile, styrene and derivative and the like) to modify the additive based on the agricultural side products and the wastes, and preparing the modified additive based on the agricultural side products and the wastes; or adopting biodegradable polyhydric alcohol or polyhydric alcohol amine as the materials and preparing a plasticizing additive based on the agricultural side products and the wastes together with the additive based on the agricultural side products and the wastes. The biodegradable additive has the advantages that the sizing property of the biodegradable textile sizing agent for cotton yarns, polyester, cotton-polyester blended yarns and other blended yarn threads can be improved, and simultaneously the degradability of the novel sizing agent is not weakened, so that the biodegradable additive is a green sizing-agent additive with low preparation cost and excellent biodegradability.
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Description

technical field

[0001] The invention relates to a biodegradable auxiliary agent for improving the performance of PVA substitute slurry, and belongs to the technical field of textile auxiliary agents. Background technique

[0002] Warp sizing is an integral step in the textile weaving process. There are about 1.1 million looms of various types in my country, and the annual consumption of pulp has reached 550,000 tons. In addition, the number of high-speed shuttleless looms is increasing at a rate of more than 10,000 per year, which further promotes the demand for pulp. Polyvinyl alcohol (PVA) is currently the most widely used and cost-effective textile size due to its excellent film-forming properties, adhesion and desizing properties. It has always been the first choice for sizing polyester and polyester-cotton blended yarns. At present, PVA size accounts for 2.5% of the global textile chemicals market, with annual sales of about US$5 billion. However, the chemical struct...

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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