Cotton sliver mercerizing process and mercerizing device utilizing same

Abstract

Disclosed are a process for mercerizing cotton strips and a mercerization device therefor, belonging to the technical field of textiles. The process is as follows: a. pre-treatment of the cotton strips: wetting the cotton strips, and dewatering or wringing, so as to prepare wet cotton strips having a certain liquid loading; b. reeling of the cotton strips: reeling the wet cotton strips on a hank reeling machine, and fixing the cotton strips with tie bands; c. coating: coating the tied cotton strips with a wrapper, such that the cotton strips are integrated with the wrapper; d. mercerization: mercerizing same by concentrated spraying and instant squeezing. The cotton strips are effectively mercerized by the wetting of the cotton strips and the addition of powerful and concentrated spraying and instant squeezing, such that the base loading on the cotton strips is always under control, thereby preventing the cotton strips from being dissolved due to over-swelling and solving the problem that the cotton strips cannot be mercerized in an untwisted state. The mercerized cotton strips are glossy and bright, are fluffy to the touch, and have a 20-30% increase in the colour yield of dyeing.

Description

technical field [0001] The invention relates to a method for mercerizing cellulose fibers and a mercerizing device thereof in the technical field of textiles, in particular to a method for mercerizing cotton slivers and a mercerizing device thereof. Background technique [0002] Mercerizing means that the yarn or sliver is endowed with a certain stretching tension under the action of concentrated alkali to make it irreversibly swell, so that the cross-section of the fiber changes from oblate to circular, and the degree of orientation is improved, so that the fabric after mercerizing or The process of improving yarn tenacity, surface luster, color yield and fabric dimensional stability. Since the sliver itself has no strength after it is off the machine, it is formed only by the uneven arrangement of the fibers, so it is impossible to use shaking and skein mercerizing, so that the sliver cannot be effectively mercerized. According to patent information, cotton slivers are us...

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Problems solved by technology

[0003] The invention provides a production method of mercerized cellulose fibers and a mercerizing device thereof, which effectively mercerizes the sliver by adopting the method of increasing the strength of the sliver to wet, concentrated spraying and instant extrusion, and always controls the amount of alkali on the sliver , will not cause excessive swelling and melting of the cotton sliver, which solves the problem that the cotton sliver cannot be mercerized in the state of no twist, the mercerized cotton sliver has bright luster, fluffy hand feeling, and the dyeing yield increases by 20% to 30%.

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