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A technology of textile sizing and starch sizing, applied in textiles, papermaking, fiber processing, etc., can solve problems such as PVA environmental pollution, reduce yarn breakage rate, sizing film flexibility, good compatibility and stability Effect
Inactive Publication Date: 2013-02-13
WUXI YUTONG FABRIC IND
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Problems solved by technology
[0003] The purpose of the present invention is to solve the environmental pollution problem of
Method used
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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[0011] Example 1
[0012] A textile sizing agent, which is obtained as follows:
[0013] (1) Preparation of polyacrylate emulsion: add 10g acrylic acid, 30g butyl acrylate, 0.2g initiator, 0.3g emulsifier OP-10 into 100g water, mix uniformly, and heat to 85°C to react for 2 hours to obtain polyacrylate Acrylate emulsion, the initiator is a mixture of azobisisobutyronitrile and potassium persulfate in a mass ratio of 2:1;
[0014] (2) Add 100g starch to 100g water, stir and disperse evenly, heat to 45℃, then add 10g hypochlorous acid aqueous solution with a mass concentration of 10%, react for 30min, then heat to 70℃, keep for 40min to obtain hypochlorite Acid modified starch slurry;
[0015] (3) Mix 100g of polyacrylate emulsion, 150g of hypochlorous acid modified starch slurry and 10g of nano-titanium dioxide (particle size of 30-70nm), mix and stir uniformly, heat to 60°C and keep the temperature for 20 minutes to obtain textile slurry.
Example Embodiment
[0016] Example 2
[0017] A textile sizing agent, which is obtained as follows:
[0018] (1) Preparation of polyacrylate emulsion: add 10g acrylic acid, 30g butyl acrylate, 0.2g initiator, 0.3g emulsifier OP-10 into 100g water, mix uniformly, and heat to 80℃ to react for 3 hours to obtain polyacrylate Acrylate emulsion, the initiator is a mixture of azobisisobutyronitrile and potassium persulfate in a mass ratio of 2:1;
[0019] (2) Add 100g starch to 100g water, stir and disperse evenly, heat to 40℃, then add 10g hypochlorous acid aqueous solution with mass concentration of 10%, react for 20min, then heat to 65℃, keep for 30min to obtain hypochlorite Acid modified starch slurry;
[0020] (3) Mix 100g of polyacrylate emulsion, 100g of hypochlorous acid modified starch slurry and 10g of nano-titanium dioxide (with a particle size of 30-70nm), mix and stir uniformly, heat to 50°C and keep for 30 minutes to obtain textile slurry.
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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Abstract
The invention discloses a spinning sizing agent. The spinning sizing agent is formed by adopting the steps of: mixing crylic acid, butyl acrylate, an initiating agent, an emulsifying agent OP-10 and water according to a mass ratio of 10: 30: 0.2: 0.3: 100 for a reaction to obtain a polyacrylate emulsion; dispersing starch in water for heating to 40-45 DEG C, then adding a hypochlorous acid solution for a reaction for 20-30 min, then heating to 65-70 DEG C, and keeping the temperature for 30-40 min to obtain a hypochlorous acid modified starch size; and uniformly mixing the polyacrylate emulsion, the hypochlorous acid modified starch size and nanometer titanium dioxide according to a mass ratio of 1: (1-1.5): 0.1; heating to 50-60 DEG C, and keeping the temperature for 20-30 min. The spinning sizing agent disclosed by the invention has the advantages of being good in abrasive resistance, compatibility as well as stability, and easy to de-size, obtaining a pliable, tough as well as smooth size film, and being capable of replacing a PVA (Polyvinyl Acetate) sizing agent, reducing end breakage rate of yarns and increasing production efficiency.
Description
technical field [0001] The invention belongs to the field of textile auxiliary materials, and in particular relates to a PVA-free modified starch textile size. Background technique [0002] As the main sizing material for warp yarn sizing, starch has good film-forming ability and good adhesion to natural fibers. It is rich in resources and low in price, and the desizing waste liquid has little environmental pollution. However, the molecular weight of native starch is high, and the molecular chain is composed of cyclic glucose residues, which has high rigidity and high glass transition temperature, and each glucose residue has 3 one-OH groups. The hydrogen bond density between molecular chains is high, and the intermolecular force is very strong. High, the chain segment movement is difficult, showing the characteristics of brittle materials, so that the size and size film of native starch have some defects in the sizing performance. In order to improve the sizing performance...
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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