\n The chemical structure of cotton cellulose macromolecules is composed of \u03b2-D glucose residues linked to each other by 1,4 glycoside bonds. The two terminal glucose residues of the macromolecule carry different groups. One end has four free hydroxyl groups, and the other end has four free hydroxyl groups. There are three free radicals and one hemiacetal hydroxyl group \ufffd\u7ea4\u7ef4\u7d20\u5927\u5206\u5b50\u94fe\u4e2d\u7684\u8d30\u952e\u5bf9\u78b1\u7684\u7a33\u5b9a\u6027\u8f83\u9ad8\uff0c\u5bf9\u9178\u5219\u6613\u53d1\u751f\u6c34\u89e3\uff0c\u4f7f\u5927\u5206\u5b50\u805a\u5408\u5ea6\u4e0b\u964d\uff0c\u5206\u5b50\u95f4\u529b\u51cf\u5f31\uff0c\u56e0\u800c\u5f3a\u5ea6\u4e0b\u964d\ufffd \ufffd<\/p<\/p>\n
\n <br style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" \/
\n \t\u76ee\u524d\u7ea4\u7ef4\u7d20\u5bf9\u78b1\u7684\u4f5c\u7528\u673a\u7406\u8bf4\u6cd5\u4e0d\u4e00\uff0c\u4f46\u666e\u904d\u8ba4\u4e3a\uff0c\u78b1\u53ea\u80fd\u4e0e\u7ea4\u7ef4\u5927\u5206\u5b50\u4e0a\u7684\u8f7b\u57fa\u53d1\u751f\u4f5c\u7528\ufffd \ufffd\u6709\u4eba\u5c06\u6d53\u78b1\u4e0e\u7ea4\u7ef4\u7d20\u4f5c\u7528\u540e\u7684\u4ea7\u7269\u7528\u9187\u7b49\u8bd5\u5242\u957f\u65f6\u95f4\u51b2\u6d17\uff0c\u5374\u603b\u6709\u90e8\u5206\u78b1\u6d17\u4e0d\u6389\uff0c\u8bf4\u660e\u78b1\u786e\u5b9e\u4e0e\u7ea4\u7ef4\u7d20\u53d1\u751f\u4e86\u5316\u5b66\u53cd\u5e94\ufffd \ufffd <\/p<\/p>\n
\n There are two theoretical explanations for its working principle: one view is that cellulose is a weak acid; it undergoes a similar neutralization reaction with alkali to form a sodium alcohol compound; the other view is that the alkali combines with the light group of cellulose to form a molecule compound, i.e. molecular combination theory \ufffd<\/p<\/p>\n
\n <\/p<\/p>\n
\n \t\u4e00\u822c\u8ba4\u4e3a\u4ee5\u4e0a\u4e24\u79cd\u53cd\u5e94\u53ef\u80fd\u540c\u65f6\u5b58\u5728\ufffd However, the product of the interaction between alkali and cellulose is called alkali cellulose. It is an unstable compound. It can still restore the original cellulose molecular structure after being washed with water, but the microstructure of the fiber has changed and the crystalline area has been reduced. Amorphous zone increased The crystallinity of natural cotton fiber is 70%. The crystallinity of mercerized cotton fiber after being treated with concentrated alkali is reduced to 50% to 60%. This shows that the alkali liquid puffs the fiber and destroys some of the crystallization areas. This effect is very effective. Practical significance, it is an important link in the dyeing and finishing of cotton fiber. \ufffd<\/p<\/p>\n
\n <br style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" \/
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\n <\/p<\/p>\n
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\n If the fabric is bleached with chlorine-containing bleach and then treated with dilute acid, the bleaching effect can be further enhanced; acid can be used to neutralize the remaining alkali on the fabric; cotton fabrics are treated with acid to produce organza; products such as burnout sheaths for polyester-cotton fabrics are There are applications <\/p>\n
Extended reading: https:\/\/www.alltextile.cn\/product\/product-83-321 .html<\/a> The chemical structure of cotton cellulose macromolecules is composed of \u03b2-D glucose residues linked to each other by 1,4 glycoside bonds. The two terminal glucose residues of the …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[46],"class_list":["post-8444","post","type-post","status-publish","format-standard","hentry","category-textile-fabric-news","tag-db"],"_links":{"self":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/posts\/8444","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8444"}],"version-history":[{"count":0,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/posts\/8444\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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