Light-masking hydrophilic fiber and preparation method thereof

• Main Authors: JIN JIAN, QIU ZHICHENG
• Format: Patent
• Language: English
• Published: 25.03.2015
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; ORGANIC MACROMOLECULAR COMPOUNDS; SPINNING; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention provides a light-masking hydrophilic fiber and a preparation method thereof. The preparation method comprises the following steps: A1, dividing inorganic light-masking powder into a first part and a second part, blending the first part of powder, aromatic dibasic acid and aliphatic diol into mixed slurry, and performing esterification reaction on the mixed slurry, so as to form a pre-reaction melt; A2, adding aliphatic polyamide into the pre-reaction melt, performing polycondensation reaction, and cooling, so as to form a modified polyester material; A3, coating the surface of the second part of powder with a resin coating, so as to form composite master batch; A4, blending and melting the modified polyester material and the composite master batch, so as to obtain a hydrophilic group modified polyester melt containing the inorganic light-masking powder; A5, spinning and drafting the hydrophilic group modified polyester melt containing the inorganic light-masking powder, so as to obtain the light-masking hydrophilic fiber. The fiber prepared by the preparation method has good internal reflection light absorption effect, and high refractive index and hydrophilicity, and the prepared textiles have good visual masking effect and good skin adaptability.