\n Overview of sun fastness<\/p<\/p>\n
\n \t\u65e5\u6652\u7262\u5ea6\u6307\u6709\u989c\u8272\u7684\u7ec7\u7269\u53d7\u65e5\u5149\u4f5c\u7528\u53d8\u8272\u7684\u7a0b\u5ea6\uff0c\u4e5f\u79f0\u8010\u5149\u8272\u7262\u5ea6\u3002<\/p>\n
\n The test method can be either exposed to the sun or exposed to a sun machine, that is, the sample is placed with a set of blue wool standards (divided into 3 levels according to the degree of fading under light exposure), and placed at the same time as the Expose the sample under artificial light sources under specified conditions according to specified conditions, and then compare the discoloration of the sample with that of the blue wool standard to evaluate the sunlight fastness grade of the sample. \ufffd<\/p<\/p>\n
\n \t\u5c06\u7167\u6652\u540e\u7684\u8bd5\u6837\u892a\u8272\u7a0b\u5ea6\u4e0e\u6807\u51c6\u8272\u6837\u8fdb\u884c\u5bf9\u6bd4\uff0c\u6b27\u6d32\u6807\u51c6\u5206\u4e3a8\u7ea7\uff0c8\u7ea7\u597d\uff0c1\u7ea7\u5dee\u3002\u7f8e\u56fd\u6807\u51c6\u5206\u4e3a5\u7ea7\u3002<\/p>\n
\n \t\u65e5\u6652\u7262\u5ea6\u5dee\u7684\u7ec7\u7269\u5207\u5fcc\u9633\u5149\u4e0b\u957f\u65f6\u95f4\u66dd\u6652\uff0c\u5b9c\u4e8e\u653e\u5728\u901a\u98ce\u5904\u9634\u5e72\u3002<\/p>\n
\n 1. Factors affecting light fastness<\/p<\/p>\n
\n It is related to the dye structure: Generally speaking, the light fastness of anthraquinone dyes, phthalocyanine dyes, sulfurized blue sulfide and metal complex dyes is relatively good; the light fastness of most insoluble azo dyes is also relatively high; Even aniline azo dyes have low light fastness; triarylmethane dyes are not light fast. \ufffd<\/p<\/p>\n
\n \t\u4e0e\u7ea4\u7ef4\u79cd\u7c7b\u6709\u5173\uff1a\u2460\u975b\u84dd\u5728\u7f8a\u6bdb\u4e0a\u8010\u6652\u800c\u5728\u7ea4\u7ef4\u7d20\u4e0a\u7684\u65e5\u6652\u7262\u5ea6\u5374\u5f88\u4f4e\uff1b\u2461\u51e1\u62c9\u660e\u84dd\u76d0B\u5728\u7c98\u80f6\u4e0a\u7684\u65e5\u6652\u7262\u5ea6\u8981\u6bd4\u5728\u68c9\u4e0a\u9ad8\u7684\u591a\u3002<\/p>\n
\n \t\u4e0e\u67d3\u6599\u6d53\u5ea6\u6709\u5173\uff1a\u4e00\u822c\u6d53\u5ea6\u4f4e\u7684\u6bd4\u6d53\u5ea6\u9ad8\u7684\u7262\u5ea6\u5dee\uff0c\u8fd9\u79cd\u60c5\u51b5\u5728\u5076\u6c2e\u67d3\u6599\u4e0a\u8868\u73b0\u5c24\u4e3a\u660e\u663e\u3002<\/p>\n
\n \t\u4e0e\u5916\u754c\u6761\u4ef6\u7684\u5f71\u54cd\u6709\u5173\uff1a\u7a7a\u6c14\u542b\u6e7f\u91cf\u7684\u9ad8\u4f4e\u3001\u6c14\u6e29\u7684\u9ad8\u4f4e\u5bf9\u65e5\u6652\u7262\u5ea6\u5f71\u54cd\u4e5f\u5f88\u5927\u3002\u4e00\u822c\u5728\u542b\u6e7f\u9ad8\u7684\u60c5\u51b5\u4e0b\uff0c\u65e5\u6652\u7262\u5ea6\u8f83\u4f4e\u3002\u5982\uff1a\u51e1\u62c9\u660e\u84dd\u5728\u5357\u65b9\u6bd4\u5728\u5317\u65b9\u5730\u533a\u5bb9\u6613\u6cdb\u7ea2\u892a\u8272\u3002<\/p>\n
\n \t\u4e0e\u52a9\u5242\u6709\u5173\uff1a\u73b0\u5728\u6709\u5f88\u591a\u7684\u52a9\u5242\u53ef\u4ee5\u6709\u6548\u6539\u5584\u65e5\u6652\u7262\u5ea6\u3002<\/p>\n
\n 2. Measures to improve light fastness<\/p<\/p>\n
\n Dye selection (main influencing factors)<\/p<\/p>\n
\n \u2460High light fastness of yellow spectrum: Reactive dyes use pyrazolin tungsten and naphthalene trisulfonic acid as the parent structure;<\/p<\/p>\n
\n \u2461High light fastness in the blue spectrum: Reactive dyes use anthraquinone, phthalocyanine, and methyl ester as the parent structure;<\/p<\/p>\n
\n \u2462The light fastness of red spectrum reactive dyes is generally low, especially light colors. Only two adjacent positions of some azo groups contain hydroxyl groups with coordination ability, forming a stable chelate ring with copper, which can improve the light fastness. degree;<\/p<\/p>\n
\n \u2463When selecting dyes for color matching, the light fastness level of each component of the dye must be equivalent. As long as the light fastness of any one of the components, especially the component with a small amount, cannot reach the light fastness level of the light color. The requirements for dyeing materials will make the light fastness of the final dyeing materials unable to meet the standards. \ufffd<\/p<\/p>\n
\n 3. Other measures<\/p<\/p>\n
\n \t\u2460\u67d3\u6599\u6d6e\u8272\u7684\u5f71\u54cd\uff0c\u67d3\u540e\u7682\u6d17\u4e0d\u5f7b\u5e95\uff0c\u672a\u56fa\u7740\u67d3\u6599\u548c\u6c34\u89e3\u67d3\u6599\u6b8b\u7559\u4e8e\u5e03\u9762\u4e0a\u4e5f\u4f1a\u5f71\u54cd\u67d3\u8272\u7269\u7684\u8010\u5149\u7262\u5ea6\uff0c\u5b83\u4eec\u7684\u8010\u5149\u7262\u5ea6\u660e\u663e\u4f4e\u4e8e\u5df2\u56fa\u7740\u7684\u6d3b\u6027\u67d3\u6599\ufffd The more complete the soaping is, the better the light fastness will be;<\/p>\n
Extended reading: https:\/\/www .tpu-ptfe.com\/post\/9321.html<\/a> Overview of sun fastness<\/p \u65e5\u6652\u7262\u5ea6\u6307\u6709\u989c\u8272\u7684\u7ec7\u7269\u53d7\u65e5\u5149\u4f5c\u7528\u53d8\u8272\u7684\u7a0b\u5ea6\uff0c\u4e5f\u79f0\u8010\u5149\u8272\u7262\u5ea6\u3002 The test method can be either exposed to the sun or exposed to a sun machine, that is, the sample is placed with a set…<\/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-8475","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\/8475","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=8475"}],"version-history":[{"count":0,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/posts\/8475\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8475"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8475"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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