Easy-to-dye regenerative cellulose fibers and preparation method thereof

Abstract

The invention discloses easy-to-dye regenerative cellulose fibers and a preparation method thereof. The easy-to-dye regenerative cellulose fibers are prepared from a penetrating agent, a micro-molecule cationic modifier, a macro-molecule cationic modifier, caustic soda and regenerative cellulose fibers, for component proportions of the raw materials, the component proportion of the penetrating agent is 0.1-0.5% (owf), the component proportion of the micro-molecule cationic modifier is 5-30% (owf), the component proportion of the macro-molecule cationic modifier is 5-30% (owf), and the component proportion of the caustic soda is 3-20% (owf); the preparation method comprises the following steps of (1) raw material selection; (2) deoiling, washing and dehydration treatment; (3) primary charging; (4) secondary charging; (5) secondary washing, dehydration and drying treatment. According to the easy-to-dye regenerative cellulose fibers and the preparation method thereof, the penetrating agent, the micro-molecule cationic modifier, the macro-molecule cationic modifier, the caustic soda and the regenerative cellulose fibers are used as raw materials, and the prepared compound fibers are high in fiber strength, can strongly absorb active dye, acid dye, pigment and heavy metal, has an antibacterial effect and a waxy smooth soft hand feeling, is environmentally friendly, and does not cause any damage to a human body.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to an easy-to-dye regenerated cellulose fiber and a preparation method thereof. Background technique [0002] Regenerated cellulose fiber is made of natural cellulose (cotton, hemp, bamboo, tree, shrub) as raw material, does not change its chemical structure, only changes the physical structure of natural cellulose, so as to produce regenerated cellulose fiber with better performance . Regenerated cellulose fiber products use 100% pure natural materials as raw materials. They are naturally biodegradable, have no additives, no heavy metals, no harmful chemicals, and are skin-friendly and non-irritating. They are environmentally friendly "green" fibers with excellent performance. [0003] Traditional textile dyeing technology generally involves spinning fibers into yarns and then weaving them into cloth before dyeing. Dyeing generally requires a higher temperature, and the dyeing ra...

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Problems solved by technology

[0005] However, the cation-modified regenerated cellulose fiber made by the above method does not have a very satisfactory color absorption effect. When making a non-woven fabric color-absorbing sheet, a large amount of cation-modified fiber needs to be added, and the addition amount reaches more than 70%. The high price of modified fiber leads to high production cost of the color-absorbing sheet; and because the dry strength of cationic modified regenerated cellulose fiber is not high, the strength of the color-absorbing sheet is not high. With the mechanical stirring of the washing machine, the color-absorbing sheet is easy to damage; therefore, it is necessary to design a dyeable regenerated cellulose fiber and its preparation method

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