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HYGROSCOPICALLY EXOTHERMIC NONWOVEN FABRIC HAVING HIGH ABSORPTION AND DESORPTION OF MOISTURE
HYGROSCOPICALLY EXOTHERMIC NONWOVEN FABRIC HAVING HIGH ABSORPTION AND DESORPTION OF MOISTURE
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机译:具有高吸湿性的湿热非织造布
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摘要
PROBLEM TO BE SOLVED: To produce hydgroscopically exothermic nonwoven fabric having high absorption and desorption of moisture, having comfortable heat retaining property and nature of dew condensation prevention by making a specific hygroscopically exothermic organic fine grain having high absorption and desorption of moisture adhere to nonwoven fabric through the medium of an adhesive. SOLUTION: This hygroscopically exothermic nonwoven fabric having high absorption and desorption of moisture is produced by imparting 1-100 wt.% (based on the fiber weight of nonwoven fabric) hygroscopically exothermic organic fine grain having high absorption and desorption of moisture using resin film having =30 g/(m2.h.) moisture permeability and 30 m thickness as at least part of an adhesive. The fine grain has =30 m average particle diameter and is prepared by subjecting an acrylic resin including =85 wt.% acrylonitrile to hydrazine treatment to introduce a crosslinking structure and to increase the nitrogen content by 1.0-15.0 wt.%, and by the hydrolysis of =1.0 m mol/g residual nitrile group to chemically convert it into a carboxylic salt. The hygroscopically exothermic nonwoven fabric having high absorption and desorption of moisture has =0.8%/min initial moisture absorption speed at 20 deg.C and 65% RH and initial moisture desorption from (20 deg.C and 90% RH) to (20 deg.C and 40% RH) respectively.
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机译:要解决的问题:通过使特定的具有高吸湿性的吸湿性有机细颗粒附着在无纺布上,从而制造具有高吸湿性的吸湿性无纺布,具有舒适的保暖性和防结露性的吸湿性无纺布。通过粘合剂的介质。解决方案:这种吸湿性高的吸湿性无纺布是通过使用1%到100%(基于非织造布的纤维重量)的吸湿性高的有机细颗粒使用树脂膜制成的。 > = 30 g /(m2.h。)透湿性和至少30 m厚度的粘合剂。细粒具有≤30m的平均粒径,并且通过对包含≥85wt。%的丙烯腈的丙烯酸树脂进行肼处理以引入交联结构并使氮含量增加1.0-15.0wt。%而制备,并且通过水解> = 1.0 m mol / g残留的腈基,将其化学转化为羧酸盐。具有高的水分吸收和解吸性的吸湿放热非织造布在20摄氏度和65%相对湿度下的初始水分吸收速度> 0.8%/ min,初始水分从(20摄氏度和90%相对湿度)解吸到(20) ℃和40%RH)。
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