High-wetness modulus adhesive colloid fiber and preparing method
A high wet modulus viscose and fiber technology, applied in the field of textile fibers, can solve the problems of easy deformation of fabrics, poor dimensional stability, and low hook strength, and achieve the effects of simple and easy operation, resistance to multiple deformations, and high strength
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Embodiment 1
[0012] Using the cotton pulp with a degree of polymerization of 800 and a content of α-cellulose of 96.5%, immersing in 240g / l NaOH solution for 0.4 hours to alkalize, adding 0.1% polyethylene glycol alkylamine relative to the amount of α-cellulose during dipping, and The content of hemicellulose in the solution used for impregnation is not more than 3% to generate alkali cellulose. After squeezing and pulverizing, it is aged for 8 hours at 35°C to obtain alkali cellulose containing 29% α-cellulose and 18% alkali. Relative to the amount of α-cellulose 35% CS 2 Reaction for 2 hours to generate cellulose xanthate, dissolve the cellulose xanthate and add 2.5% polyoxyethylene fatty amine relative to the amount of α-cellulose during the dissolution process to obtain α-cellulose 9.8%, NaOH5. 9%, viscosity (drop ball method) 65s, maturity (10% NH 4 CI value) 18ml, high esterification degree and high maturity cellulose xanthate spinning dope with a viscose esterification degree of 35. The...
Embodiment 2
[0014] The process steps are the same as in Example 1, except that during the scouring process, sodium hypochlorite is used for bleaching at a concentration of 0.1g / l, a temperature of 55°C, and drying to obtain a finished product with high wet modulus viscose fiber, and the obtained high wet modulus viscose fiber The dry strength is 3.8cN / dtex, the wet elastic modulus is 0.46cN / dtex, and the wet strength is 2.35cN / dtex.
Embodiment 3
[0016] Adopt wood pulp with a degree of polymerization of 500 and α-cellulose content ≥95.7%, soak it in 200g / l NaOH solution for 0.6 hours, and add 0.16% of the relative α-cellulose amount of polyethylene glycol alkylamine during dipping. The content of hemicellulose in the solution used for dipping does not exceed 3.9% to generate alkali cellulose. After squeezing and pulverizing, it is aged for 0.3 hours at 40°C to obtain alkali cellulose containing 34.2% of α-cellulose and 18.3% of NaOH. , Adding 44% CS relative to α-cellulose 2 Reaction for 2.5 hours to generate cellulose xanthate, dissolve the cellulose xanthate and add 1.2% polyoxyethylene fatty amine relative to the amount of α-cellulose during the dissolution process to obtain 4.8% α-cellulose, NaOH4. 5%, viscosity (drop ball method) 65s, maturity (10% NH 4 CI value) 35ml, high esterification degree and high maturity cellulose xanthate spinning dope with viscose esterification degree of 46. Using wet molding, the spinning...
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