Preparation method of core-spun yarns
A technology of core-spun yarn and preparation steps, which is applied in yarn, rayon manufacture, hollow filament manufacture, etc. It can solve the problems of core-spun yarn such as low strength, poor elasticity, and rough surface feel, and achieve increased strength and elasticity, The effect of increasing the effective diameter and optimizing the surface feel
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Embodiment 1
[0034] Natural plant fiber: flax fiber
[0035] Preparation of blended fibers:
[0036] In terms of parts by weight, take 80 parts of flax fiber and soak it in 400 parts of sulfuric acid solution with a mass fraction of 30%, control the soaking temperature at 50°C, and soak for 1 hour. After taking it out, put it into an aluminum pot, and then add 100 parts Parts of sodium hydroxide solution with a mass fraction of 40%, 50 parts of a sodium polyphosphate solution with a mass fraction of 4%, and 30 parts of a sodium silicate solution with a mass fraction of 10%, are heated in a water bath to 80°C, and after cooking for 2 hours, Filtrate, remove filtrate to obtain alkali-boiled fiber, and described natural plant fiber is a kind of flax fiber, ramie fiber;
[0037] Mix the waste cotton fabrics or cotton yarn scraps and crush them with a crusher to obtain cotton fibers with a length of 2mm. Mix the above-mentioned alkali-boiled fibers and cotton fibers at a mass ratio of 1:4, and...
Embodiment 2
[0047] Natural plant fiber: flax fiber
[0048] Preparation of blended fibers:
[0049] In terms of parts by weight, take 100 parts of flax fibers and soak them in 420 parts of sulfuric acid solution with a mass fraction of 30%, control the soaking temperature at 52°C, and soak for 1.5 hours. 110 parts of sodium hydroxide solution with a mass fraction of 40%, 55 parts of a sodium polyphosphate solution with a mass fraction of 4%, and 35 parts of a sodium silicate solution with a mass fraction of 10%, heated in a water bath to 85°C, and cooked for 2.5 hours Afterwards, filter, remove filtrate to obtain alkali-boiled fiber, and described natural plant fiber is a kind of flax fiber, ramie fiber;
[0050] Mix the waste cotton fabrics or cotton yarn scraps and crush them with a crusher to obtain cotton fibers with a length of 2mm. Mix the above-mentioned alkali-boiled fibers and cotton fibers at a mass ratio of 1:4, and soak them in 170mL of hydrochloric acid with a mass fraction ...
Embodiment 3
[0060] Natural plant fiber: ramie fiber
[0061] Preparation of blended fibers:
[0062] In terms of parts by weight, take 120 parts of ramie fibers and soak them in 450 parts of sulfuric acid solution with a mass fraction of 30%, control the soaking temperature at 55°C, and soak for 2 hours. Parts of sodium hydroxide solution with a mass fraction of 40%, 60 parts of a sodium polyphosphate solution with a mass fraction of 4%, and 40 parts of a sodium silicate solution with a mass fraction of 10%, are heated in a water bath to 90°C, and after cooking for 3 hours, Filtrate, remove filtrate to obtain alkali-boiled fiber, and described natural plant fiber is a kind of flax fiber, ramie fiber;
[0063]Mix the waste cotton fabrics or cotton yarn scraps and crush them with a crusher to obtain cotton fibers with a length of 3mm. Mix the above-mentioned alkali-boiled fibers and cotton fibers at a mass ratio of 1:4, and soak them in 180mL of hydrochloric acid with a mass fraction of 10...
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