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8156results about "Fibre types" patented technology

Aqueous polyurethane superfine fiber synthetic leather and preparation method thereof

The invention relates to aqueous polyurethane superfine fiber synthetic leather and a preparation method thereof. The preparation method comprises the following steps of: firstly, adding the following components according to parts by weight, i.e. 2-5 parts of foaming agents, 50-200 parts of water, 2-3 parts of foam stabilizers and 0-3 parts of waterborne colorants, into 100 parts of aqueous anionic polyurethane dipping sizing agents, and stirring the components and the sizing agents uniformly at high speed by using a blender so as to prepare a sizing agent; secondly, dipping non-woven fabricsin the sizing agent, scrapping the surface of the fabrics and keeping partial cells; thirdly, solidifying aqueous polyurethane on the dipped non-woven fabrics through aqueous coagulating liquid so asto form cells; fourthly, carrying out water scrubbing after aqueous polyurethane resin is completely solidified, and drying the aqueous polyurethane resin by an infrared drying oven so as to obtain base cloth; fifthly, treating the dried base cloth through an alkali reducing process; sixthly, treating the base cloth treated through the alkali reducing process through an postprocessing process; and seventhly, preparing the obtained base cloth into the synthetic leather. The aqueous polyurethane superfine fiber synthetic leather is prepared by the method.
Owner:HUADA CHEM GRP CO LTD

Moisture absorption perspiration-discharging dressing agent and its manufacturing technique and application

The invention discloses the formula, the production process and the application of moisture absorbent and sweat conductive comfortable finishing agent which is used for modifying the polyester fiber to enable the polyester fiber to have moisture absorbent and sweat conductive capabilities. The formula of the moisture absorbent and sweat conductive comfortable finishing agent contains: polyethylene glycol, ethylene glycol, polyether and dimethyl terephthalate. The two-step continuous production process is adopted: in the first step of esterifying, polyethylene glycol, ethylene glycol, polyether and dimethyl terephthalate are put into a reaction vessel for esterification under the action of catalysts; and in the second step that the material produced after the esterification is transported to a polymerization kettle for polymerization under the actions of high temperature, vacuum, and catalysts, in order to generate polyester-polyether copolymer with high molecular weight to be 30000-50000, namely, the moisture absorbent and sweat conductive comfortable finishing agent. The moisture absorbent and sweat conductive comfortable finishing agent can be directly used or be used after being mixed with substances such as amino silicone oil and so on, and carry out chemical modification on the polyester fiber.
Owner:DUPLUS CHEM OF ZHANGJIAGANG CITY
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