Intelligent Wet Cloth Hot Alkali Straight Roll Cloth Clip Knitted Fabric Mercerizing Machine

Abstract

The invention mainly discloses an intelligent chainless and clip mercerizing machine adopting wet cloth and thermal alkali for knitted fabric. The technical scheme of the machine is characterized in that the mercerizing machine comprises an open width fabric feeding device, a concentrated alkali dipping tank, a clip expanding device, an oscillating water washing tank, a drying machine and an open width fabric discharging device, wherein the concentrated alkali dipping tank comprises a pre-dipping tank and a concentrated alkali tank, pre-dipping rollers and a heating unit are arranged in the pre-dipping tank, and a first roller group, a second roller group, a fabric guide roller and an adjusting device are arranged in the concentrated alkali dipping tank; the clip expanding device comprises a spray tube, a spray tank, an alkali absorption tube and a collection tank provided with a filter layer, a recovery tube is connected to the collection tank and connected with the pre-dipping tank, the concentrated alkali tank, the spray tank and the oscillating water washing tank, and a second spray device, a water supplementing tank, a patting device and an oscillating device are arranged in the oscillating water washing tank. The mercerizing machine can adjust the reaction degree of the fabric and an alkali liquid, the mercerizing effect is good, alkali is fully removed, the later dimensional stability and quality of the fabric are improved, the waste alkali liquid is recycled, and accordingly, the properties of energy conservation and environment friendliness of a mercerizing processing technology are improved.

Description

technical field [0001] The invention relates to an intelligent mercerizing machine for wet cloth hot alkali straight roller clip knitted fabrics. Background technique [0002] In the prior art, the mercerizing process is to impregnate cotton, hemp and other cellulose with concentrated sodium hydroxide solution (lye), so that the fibers undergo irreversible swelling, which causes changes in the fiber lattice parameters, decreases the crystallinity, and partly consists of crystal regions. It transforms into an amorphous area, making the hydroxyl groups that were originally inaccessible in water accessible, and the cross-section of the fiber changes, expanding from a rectangle to a circle, the cell cavity shrinks, and the natural distortion in the longitudinal direction disappears. The fiber is stretched or no longer shrinks, the wrinkles on the surface of the fiber disappear and become a smooth cylinder, and the fiber structure is arranged in an orderly manner, thus improving ...

AI Technical Summary

Problems solved by technology

This tight mercerizing process makes it difficult for the lye to penetrate into the fiber and only touch the surface of the fabric when the fabric is impregnated with lye in a tensioned state. At the same time, the action time of the fiber and lye is short, making it impossible for the lye to treat the fabric. Meet the actual needs; when the lye is processed for lye washing, the lye washing of the fabric is not thorough enough, so that part of the lye remains in the fabric, causing the fabric to shrink later and affecting the dimensional stability of the fabric; after mercerizing, The remaining alkali on the fiber is washed down, and the washed waste alkali is generally discharged directly, which not only wastes resources and increases production costs, but also causes environmental pollution without treatment

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