纺织科学与工程学报2024，Vol.41Issue(3)：61-70,10.DOI:10.3969/j.issn.2096-5184.2024.03.010
废旧天丝溶解液流变及固化方式的研究
Study on Rheology and Curing Methods of Waste Tencel Dissolving Solution
摘要
Abstract
In order to explore the rheology and curing methods of waste tencel dissolving solution,HEC was used to change the rheological performance of the waste tencel dissolving solution,seven printing solutions with mass fractions of 1%,2%,3%,4%,5%,6%and 7%were prepared,and all the solutions had shear thinning property by rheological performance testing.The printing process was optimized by single-factor test and the opti-mized printing process was determined as follows:paste extrusion speed of 2.0 mm/s,needle movement speed of 20 mm/s,and needle diameter of 0.31 mm.The seven prepared solutions were printed by Direct Ink Writing(DIW)technology,and the preferred concentrations were determined by forming conditions as 4%,5%,and 6%.Freeze-drying,heat-curing and light-curing methods were adopted to conduct curing study on the printed fabrics.The optimal concentration of 6%was determined by shrinkage deformation and color odor,the two curing methods of heat-curing and freeze-drying were selected,and the performance of the printed fabrics was tested and characterized.The results showed that the surface of freeze-dried fabric had small and sharp bumps and the cross-section showed a horizontal laminar structure;the larger and flatter bumps on the surface of the heat-cured fabric were more comfortable than those of the freeze-dried curing method,and the cross-section had a uniform and dense vertical lamellar structure.The infrared spectra of the freeze-dried cured fabric and the heat-cured fabric were basically the same;compared with the X-ray spectrum of the fabric before and after decolorization,the characteristic diffraction peaks of cellulose type II and cellulose type III of the printed fabrics of two curing methods were converted into the characteristic peaks of mixed crystalline type,and the characteristic peaks were broad and narrow with weak diffraction ability;and the two curing methods showed similar thermal properties.关键词
废旧纺织品/纤维溶解液/固化方式/天丝面料/织物打印Key words
waste textiles/fibre dissolving solution/curing method/tencel fabric/fabric printing分类
轻工纺织引用本文复制引用
杨彤,孟家光,孙宁,陈雨青..废旧天丝溶解液流变及固化方式的研究[J].纺织科学与工程学报,2024,41(3):61-70,10.基金项目
陕西省科技厅科研项目(2022KXJ-017),陕西省科技创新领军人才科研项目(2018033). （2022KXJ-017）
