CN109252367A - 一种热敏变色复合面料及其制备工艺 - Google Patents
一种热敏变色复合面料及其制备工艺 Download PDFInfo
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- CN109252367A CN109252367A CN201811001763.2A CN201811001763A CN109252367A CN 109252367 A CN109252367 A CN 109252367A CN 201811001763 A CN201811001763 A CN 201811001763A CN 109252367 A CN109252367 A CN 109252367A
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Abstract
本发明公开了一种热敏变色复合面料及其制备工艺,该面料是由棉纤维和羊毛纤维经过预处理,然后与锦纶纤维进行接枝改性,同时将接枝改性后的棉纤维、羊毛纤维和棉纶纤维进行混合纺纱,然后将纺织的混合纱线进行整理、编制制备。本发明通过将原料纤维进行预处理,然后将变色晶体通过囊壁均匀包裹,同时囊壁上均布的活泼羟基和氨基直接与预处理后的原料限位进行复合接枝改性,使得囊壁包裹的变色晶体能够牢固的结合在原料纤维的表面,然后经过粘合剂的再次包裹固定,使得囊壁包裹的变色晶体牢固的结合在复合面料上,经过多洗洗涤后,面料上的变色晶体含量不会发生变化,不影响面料的变色性能。
Description
技术领域
本发明属于面料制备领域,涉及一种热敏变色复合面料及其制备工艺。
背景技术
热敏变色材料被广泛的应用于防伪、装饰领域,同时现有的衣物面料中也通过添加热敏变色材料实现衣物的变色性能,提高衣物装饰性,同时对于医院中的病人来说通过衣物的变色可以适时的对病人的提问进行检测,进而能够及时发现病人的异常情况。
现有的变色面料主要通过浸渍法和涂覆法将热敏变色剂直接涂布浸渍在面料纤维层表面,然后通过粘合剂进行固定,但是由于衣物经常清洗,多次洗涤后面料表面的粘合层膜会造成破损,造成面料上的变色物质含量降低,使得面料逐渐失去变色性能。
发明内容
本发明的目的在于提供一种热敏变色复合面料及其制备工艺,该面料通过将原料纤维进行预处理,然后将变色晶体通过囊壁均匀包裹,同时囊壁上均布的活泼羟基和氨基直接与预处理后的原料限位进行复合接枝改性,使得囊壁包裹的变色晶体能够牢固的结合在原料纤维的表面,然后经过粘合剂的再次包裹固定,使得囊壁包裹的变色晶体牢固的结合在复合面料上,经过多洗洗涤后,面料上的变色晶体含量不会发生变化,不影响面料的变色性能,进而有效的解决了传统变色面料通过浸渍法和涂覆法将热敏变色剂直接涂布浸渍在面料纤维层表面,然后通过粘合剂进行固定,但是由于衣物经常清洗,多次洗涤后面料表面的粘合层膜会造成破损,造成面料上的变色物质含量降低,使得面料逐渐失去变色性能的问题。
本发明将变色晶体分散在乙二醇和表面活性剂的溶液中,使得变色晶体的表面被乙二醇包围,由于再加入二苯甲烷二异氰酸酯时,由于二苯甲烷二异氰酸酯不溶于水,因此作为油相与溶于水相的乙二醇在变色晶体的表面发生聚合反应,反应后的聚合物均匀的包裹在变色晶体周侧,使得变色反应时不会由于囊壁厚度不均匀造成变色时间和变色温度的不同,进而造成同一面料不同部位颜色变化不相同,影响衣服的装饰性能。
本发明将变色晶体包裹在囊壁中,由于该变色晶体的变色机理为脱去其中的结晶水和吸收水分结晶进行变色,通过囊壁的包裹使得晶体处于封闭的环境中,温度升高时水分子脱去后仍停留在囊腔中,当温度降低时变色物质与水结合又生成变色晶体,由于结晶水始终存在与囊腔中,使得变色物质很容易接触到结晶水实现变色,进而提高变色物质的灵敏性,并且不受外界环境的影响,即使在特别干燥的环境中通过自身结晶水的脱去和吸附自身的结晶水实现变色的性能,并且通过囊壁的保护作用可以有效的防止在衣服仿佛洗涤过程中造成变色晶体含量的减少,进而造成变色性能的降低甚至消失。
本发明的目的可以通过以下技术方案实现:
一种热敏变色复合面料,是由棉纤维和羊毛纤维经过预处理,然后与锦纶纤维进行接枝改性,同时将接枝改性后的棉纤维、羊毛纤维和棉纶纤维进行混合纺纱,然后将纺织的混合纱线进行整理、编制制备;
其中棉纤维和羊毛纤维的具体预处理过程如下:
步骤1:将棉纤维加入浓度为1%的氢氧化钠溶液中,升温至50℃,浸泡3-4h,然后进行过滤,过滤后洗涤至中性,烘干,得到预处理棉纤维;此时棉纤维表面的酯基被破坏,纤维素露出,便于后期改性反应;
步骤2:将羊毛纤维清洗干净后加入浓度为4.5-4.9%的高锰酸钾溶液中,升温至40℃超声反应2h,捞出后洗涤烘干,得到预处理羊毛纤维,其中羊毛纤维经过氧化处理后使得羊毛纤维表面的鳞片层破坏,进而使得羊毛纤维中的蛋白质分子裸露。
将预处理的棉纤维和羊毛纤维与锦纶纤维进行接枝改性,具体过程如下:
(1)制备改性变色胶囊,具体制备步骤如下:①将一定量的六水合氯化钴加入水中,搅拌溶解后向其中加入六亚甲基四胺,搅拌混合均匀,然后升温至 70℃逐渐蒸发掉其中的溶剂,直到液面出现晶膜,然后冷却至室温结晶,过滤,同时用丙酮对产物进行洗涤后真空干燥,得到粉红色变色晶体;②将一定量的水加入反应容器中,然后向其中加入十二烷基苯磺酸钠,搅拌溶解均匀后再加入乙二醇,搅拌混合均匀;③称取一定量的粉红色变色晶体加入②中搅拌分散均匀,并升温至50℃;④通过恒压滴液漏斗向③中逐滴加入二苯甲烷二异氰酸酯,边滴加边剧烈搅拌,滴加完全后,恒温反应1-1.5h,得到改性变色胶囊;经变色晶体分散在乙二醇和表面活性剂的溶液中,使得变色晶体的表面被乙二醇包围,由于再加入二苯甲烷二异氰酸酯时,由于二苯甲烷二异氰酸酯不溶于水,因此作为油相与溶于水相的乙二醇在变色晶体的表面发生聚合反应,反应后的聚合物均匀的包裹在变色晶体周侧,使得变色反应时不会由于囊壁厚度不均匀造成变色时间和变色温度的不同,进而造成同一面料不同部位颜色变化不相同,影响衣服的装饰性能;并且二苯甲烷二异氰酸酯与乙二醇聚合后两端含有仲醇基,同时聚合物链条上含有大量的氨基功能基团;同时将变色晶体包裹在囊壁中,由于该变色晶体的变色机理为脱去其中的结晶水和吸收水分结晶进行变色,通过囊壁的包裹使得晶体处于封闭的环境中,温度升高时水分子脱去后仍停留在囊腔中,当温度降低时变色物质与水结合又生成变色晶体,由于结晶水始终存在与囊腔中,使得变色物质很容易接触到结晶水实现变色,进而提高变色物质的灵敏性,并且不受外界环境的影响,即使在特别干燥的环境中通过自身结晶水的脱去和吸附自身的结晶水实现变色的性能,并且通过囊壁的保护作用可以有效的防止在衣服仿佛洗涤过程中造成变色晶体含量的减少,进而造成变色性能的降低甚至消失;具体反应结构式如图1和图2所示,其中步骤①中每克六水合氯化钴加入25-26mL水中,同时,每克六水合氯化钴中加入 1.2-1.3g六亚甲基四胺;步骤②、步骤③和步骤④中每千克乙二醇中加入十二烷基苯磺酸钠3.5-3.8g,每千克乙二醇中加入水4.3-4.5kg,同时每千克乙二醇中加入粉红色变色晶体1.1-1.2kg,每千克乙二醇中加入二苯甲烷二异氰酸酯 4-4.1kg;
(2)将变色胶囊加入水中,超声分散均匀,然后向其中加入预处理的棉纤维和羊毛纤维与锦纶纤维,升温至60℃,逐滴向其中加入多聚甲醛,恒温超声反应7-8h,然后捞出纤维,在50℃的烘干室中进行烘干处理;由于改性变色胶囊的表面包覆一层囊壁,囊壁上均布有若干羟基和氨基功能基团,棉纤维和羊毛纤维裸露的蛋白质中含有活泼的仲醇基,能够与改性变色胶囊囊壁上的羟基通过多聚甲醛的作用发生缩醛反应,使得部分改性变色胶囊复合在预处理棉纤维和羊毛纤维表面,同时羊毛纤维裸露的蛋白质中含有大量的氨基,并且棉纶纤维中同样含有大量的氨基,通过多聚甲醛的加成交联反应,使得改性变色胶囊复合在预处理羊毛纤维和棉纶纤维的表面,进而使得处理后的混合纤维中均接枝有改性变色胶囊;
一种热敏变色复合面料的制备工艺,具体制备过程如下:
第一步,将棉纤维和羊毛纤维分别进行预处理;
第二步,将改性变色胶囊接枝复合在预处理的棉纤维和羊毛纤维与锦纶纤维上;
第三步,将接枝改性后的棉纤维、羊毛纤维与锦纶纤维进行混纺成混合纱线;
第四步,将海藻酸钠溶于水中,然后向其中加入羧甲基纤维素,搅拌混合形成粘稠的胶状液体,将混纺纱线在胶状液体中滚涂,直到混纺纱线的表面均匀的包裹一层胶状液体为止,然后将混纺纱线在50℃的烘干室中进行烘干,同时将烘干后的混纺纱线进行编制,得到热敏变色复合面料;其中海藻酸钠和羧甲基纤维素的质量比为1:0.83-0.87;混纺纱线中接枝有改性变色胶囊,通过海藻酸钠和羧甲基纤维素混合制备的胶状液体具有较高的粘结性能,通过包裹于混纺纱线的表面,可以对混纺纱线表面的改性变色胶囊进行固定,进而能够防止在长期清洗过程中造成改性变色胶囊的含量减少,进行影响面料的变色性能;
该热敏变色复合面料在温度小于37℃时显示淡粉色,同时当温度大于等于 37℃时颜色变为天蓝色。
本发明的有益效果:
1、本发明通过将原料纤维进行预处理,然后将变色晶体通过囊壁均匀包裹,同时囊壁上均布的活泼羟基和氨基直接与预处理后的原料限位进行复合接枝改性,使得囊壁包裹的变色晶体能够牢固的结合在原料纤维的表面,然后经过粘合剂的再次包裹固定,使得囊壁包裹的变色晶体牢固的结合在复合面料上,经过多洗洗涤后,面料上的变色晶体含量不会发生变化,不影响面料的变色性能,进而有效的解决了传统变色面料通过浸渍法和涂覆法将热敏变色剂直接涂布浸渍在面料纤维层表面,然后通过粘合剂进行固定,但是由于衣物经常清洗,多次洗涤后面料表面的粘合层膜会造成破损,造成面料上的变色物质含量降低,使得面料逐渐失去变色性能的问题。
2、本发明将变色晶体分散在乙二醇和表面活性剂的溶液中,使得变色晶体的表面被乙二醇包围,由于再加入二苯甲烷二异氰酸酯时,由于二苯甲烷二异氰酸酯不溶于水,因此作为油相与溶于水相的乙二醇在变色晶体的表面发生聚合反应,反应后的聚合物均匀的包裹在变色晶体周侧,使得变色反应时不会由于囊壁厚度不均匀造成变色时间和变色温度的不同,进而造成同一面料不同部位颜色变化不相同,影响衣服的装饰性能。
3、本发明将变色晶体包裹在囊壁中,由于该变色晶体的变色机理为脱去其中的结晶水和吸收水分结晶进行变色,通过囊壁的包裹使得晶体处于封闭的环境中,温度升高时水分子脱去后仍停留在囊腔中,当温度降低时变色物质与水结合又生成变色晶体,由于结晶水始终存在与囊腔中,使得变色物质很容易接触到结晶水实现变色,进而提高变色物质的灵敏性,并且不受外界环境的影响,即使在特别干燥的环境中通过自身结晶水的脱去和吸附自身的结晶水实现变色的性能,并且通过囊壁的保护作用可以有效的防止在衣服仿佛洗涤过程中造成变色晶体含量的减少,进而造成变色性能的降低甚至消失。
4、本发明的变色温度控制在37℃,可以根据体温的变化实现衣物颜色的变化,进而能够实时直观的对身体的温度进行检测,防止发热情况不能及时发现。
附图说明
为了便于本领域技术人员理解,下面结合附图对本发明作进一步的说明。
图1为本发明改性变色胶囊的合成结构式;
图2为图1中改性变色胶囊的结构式。
具体实施方式
结合图1和图2通过如下实施例进行详细说明:
实施例1:
粉红色变色晶体的制备,具体制备过程如下:
将1kg六水合氯化钴加入25L水中,搅拌溶解后向其中加入1.2kg六亚甲基四胺,搅拌混合均匀,然后升温至70℃逐渐蒸发掉其中的溶剂,直到液面出现晶膜,然后冷却至室温结晶,过滤,同时用丙酮对产物进行洗涤后真空干燥,得到粉红色变色晶体。
实施例2:
改性变色胶囊的制备,具体制备过程如下:
(1)将430g水加入反应容器中,然后向其中加入0.35g十二烷基苯磺酸钠,搅拌溶解均匀后再加入100g乙二醇,搅拌混合均匀;
(2)称取110g实施例1中制备的粉红色变色晶体加入步骤1中搅拌分散均匀,并升温至50℃;
(3)通过恒压滴液漏斗向③中逐滴加入400g二苯甲烷二异氰酸酯,边滴加边剧烈搅拌,滴加完全后,恒温反应1-1.5h,得到改性变色胶囊。
实施例3:
一种热敏变色复合面料的制备工艺,具体制备过程如下:
第一步,将棉纤维加入浓度为1%的氢氧化钠溶液中,升温至50℃,浸泡3-4h,然后进行过滤,过滤后洗涤至中性,烘干,得到预处理棉纤维;将羊毛纤维清洗干净后加入浓度为4.5%的高锰酸钾溶液中,升温至40℃超声反应2h,捞出后洗涤烘干,得到预处理羊毛纤维;
第二步,将实施例2中制备的变色胶囊加入水中,超声分散均匀,然后向其中加入预处理的棉纤维和羊毛纤维与锦纶纤维,升温至60℃,逐滴向其中加入多聚甲醛,恒温超声反应7-8h,然后捞出纤维,在50℃的烘干室中进行烘干处理;
第三步,将接枝改性后的棉纤维、羊毛纤维与锦纶纤维进行混纺成混合纱线;
第四步,将1kg海藻酸钠溶于8.1L水中,然后向其中加入0.83Kg羧甲基纤维素,搅拌混合形成粘稠的胶状液体,将混纺纱线在胶状液体中滚涂,直到混纺纱线的表面均匀的包裹一层胶状液体为止,然后将混纺纱线在50℃的烘干室中进行烘干,同时将烘干后的混纺纱线进行编制,得到热敏变色复合面料。
实施例4:
一种热敏变色复合面料的制备工艺,具体制备过程如下:
第一步,将棉纤维加入浓度为1%的氢氧化钠溶液中,升温至50℃,浸泡3-4h,然后进行过滤,过滤后洗涤至中性,烘干,得到预处理棉纤维;将羊毛纤维清洗干净后加入浓度为4.9%的高锰酸钾溶液中,升温至40℃超声反应2h,捞出后洗涤烘干,得到预处理羊毛纤维;
第二步,将实施例2中制备的变色胶囊加入水中,超声分散均匀,然后向其中加入预处理的棉纤维和羊毛纤维与锦纶纤维,升温至60℃,逐滴向其中加入多聚甲醛,恒温超声反应7-8h,然后捞出纤维,在50℃的烘干室中进行烘干处理;
第三步,将接枝改性后的棉纤维、羊毛纤维与锦纶纤维进行混纺成混合纱线;
第四步,将1kg海藻酸钠溶于8.3L水中,然后向其中加入0.87Kg羧甲基纤维素,搅拌混合形成粘稠的胶状液体,将混纺纱线在胶状液体中滚涂,直到混纺纱线的表面均匀的包裹一层胶状液体为止,然后将混纺纱线在50℃的烘干室中进行烘干,同时将烘干后的混纺纱线进行编制,得到热敏变色复合面料。
对比例1:
一种热敏变色复合面料的制备工艺,具体制备过程如下:
第一步,将实施例2中制备的变色胶囊加入水中,超声分散均匀,然后向其中加入棉纤维、羊毛纤维与锦纶纤维,升温至60℃,逐滴向其中加入多聚甲醛,恒温超声反应7-8h,然后捞出纤维,在50℃的烘干室中进行烘干处理;
第二步,将接枝改性后的棉纤维、羊毛纤维与锦纶纤维进行混纺成混合纱线;
第三步,将1kg海藻酸钠溶于8.1L水中,然后向其中加入0.83Kg羧甲基纤维素,搅拌混合形成粘稠的胶状液体,将混纺纱线在胶状液体中滚涂,直到混纺纱线的表面均匀的包裹一层胶状液体为止,然后将混纺纱线在50℃的烘干室中进行烘干,同时将烘干后的混纺纱线进行编制,得到热敏变色复合面料;其中海藻酸钠和羧甲基纤维素的质量比为1:0.83-0.87;
对比例2:
一种热敏变色复合面料的制备工艺,具体制备过程如下:
第一步,将羊毛纤维、棉纤维和棉纶纤维进行混纺成混纺纱线;
第二步,将实施例2中制备的变色胶囊加入水中,超声分散均匀,然后向其中混纺纱线浸泡30min后取出;
第三步,将1kg海藻酸钠溶于8.1L水中,然后向其中加入0.83Kg羧甲基纤维素,搅拌混合形成粘稠的胶状液体,将混纺纱线在胶状液体中滚涂,直到混纺纱线的表面均匀的包裹一层胶状液体为止,然后将混纺纱线在50℃的烘干室中进行烘干,同时将烘干后的混纺纱线进行编制,得到热敏变色复合面料。
对比例3:
一种热敏变色复合面料的制备工艺,具体制备过程如下:
第一步,将羊毛纤维、棉纤维和棉纶纤维进行混纺成混纺纱线;
第二步,将实施例1中制备的粉红色变色晶体加入水中,超声分散均匀,然后向其中混纺纱线浸泡30min后取出;
第三步,将1kg海藻酸钠溶于8.1L水中,然后向其中加入0.83Kg羧甲基纤维素,搅拌混合形成粘稠的胶状液体,将混纺纱线在胶状液体中滚涂,直到混纺纱线的表面均匀的包裹一层胶状液体为止,然后将混纺纱线在50℃的烘干室中进行烘干,同时将烘干后的混纺纱线进行编制,得到热敏变色复合面料。
实施例5:
对实施例3-4和对比例1-3中制备的变色复合面料进行性能的测试,具体测试过程如下:
(1)对实施例1-2制备的变色晶体和变色胶囊与实施例3-4和对比例1-3 制备的变色面料进行变色实验测试,具体结果如表1所示:
表1变色温度和变色时间的测定结果
由表1可知,该热敏变色复合面料在37℃以下显示淡粉色,同时当温度大于等于37℃时颜色变为天蓝色,可以通过温度的变化实现面料颜色的变化,并且在室温恒定情况下,对人体的体温进行实施的测定;经过囊壁包裹后的变色晶体制备的变色面料变色时间只有6秒,囊壁包裹后的变色晶体的变色温度虽然提高,但是变色时间与变色晶体相比,变色时间变快,由于该变色晶体的变色机理为脱去其中的结晶水和吸收水分结晶进行变色,通过囊壁的包裹使得晶体处于封闭的环境中,温度升高时水分子脱去后仍停留在囊腔中,当温度降低时变色物质与水结合又生成变色晶体,由于结晶水始终存在与囊腔中,使得变色物质很容易接触到结晶水实现变色,进而提高变色物质的灵敏性。
(2)将实施例3-4和对比例1-3制备的面料分别清洗10次、30次、50次和100次后观察面料颜色,结果如表2所示:
由表2可知,纤维素经过改性处理后,然后与囊壁包裹的变色晶体接枝复合,最后用胶黏剂进行固定,制备的面料具有耐洗性,经过多次洗涤后颜色仍保持鲜艳,说明面料中的变色晶体含量没有减少,同时没有经过预处理的纤维素相比,经过多洗洗涤后,颜色变灰白,由于囊壁包裹的变色晶体直接通过粘合剂粘合,与基体纤维素之间没有作用力,使得变色晶体经过长期洗涤后表面的粘合膜破损,进而导致变色晶体含量降低。
以上公开的本发明优选实施例只是用于帮助阐述本发明。优选实施例并没有详尽叙述所有的细节,也不限制该发明仅为所述的具体实施方式。显然,根据本说明书的内容,可作很多的修改和变化。本说明书选取并具体描述这些实施例,是为了更好地解释本发明的原理和实际应用,从而使所属技术领域技术人员能很好地理解和利用本发明。本发明仅受权利要求书及其全部范围和等效物的限制。
Claims (7)
1.一种热敏变色复合面料,其特征在于,是由棉纤维和羊毛纤维经过预处理,然后与锦纶纤维进行接枝改性,同时将接枝改性后的棉纤维、羊毛纤维和棉纶纤维进行混合纺纱,然后将纺织的混合纱线进行整理、编制制备;
预处理的棉纤维和羊毛纤维与锦纶纤维进行接枝改性的具体过程如下:
(1)制备改性变色胶囊,具体制备步骤如下:①将一定量的六水合氯化钴加入水中,搅拌溶解后向其中加入六亚甲基四胺,搅拌混合均匀,然后升温至70℃逐渐蒸发掉其中的溶剂,直到液面出现晶膜,然后冷却至室温结晶,过滤,同时用丙酮对产物进行洗涤后真空干燥,得到粉红色变色晶体;②将一定量的水加入反应容器中,然后向其中加入十二烷基苯磺酸钠,搅拌溶解均匀后再加入乙二醇,搅拌混合均匀;③称取一定量的粉红色变色晶体加入②中搅拌分散均匀,并升温至50℃;④通过恒压滴液漏斗向③中逐滴加入二苯甲烷二异氰酸酯,边滴加边剧烈搅拌,滴加完全后,恒温反应1-1.5h,得到改性变色胶囊;
(2)将变色胶囊加入水中,超声分散均匀,然后向其中加入预处理的棉纤维和羊毛纤维与锦纶纤维,升温至60℃,逐滴向其中加入多聚甲醛,恒温超声反应7-8h,然后捞出纤维,在50℃的烘干室中进行烘干处理。
2.根据权利要求1所述的一种热敏变色复合面料,其特征在于,棉纤维和羊毛纤维的具体预处理过程如下:
步骤1:将棉纤维加入浓度为1%的氢氧化钠溶液中,升温至50℃,浸泡3-4h,然后进行过滤,过滤后洗涤至中性,烘干,得到预处理棉纤维;
步骤2:将羊毛纤维清洗干净后加入浓度为4.5-4.9%的高锰酸钾溶液中,升温至40℃超声反应2h,捞出后洗涤烘干,得到预处理羊毛纤维。
3.根据权利要求1所述的一种热敏变色复合面料,其特征在于,步骤①中每克六水合氯化钴加入25-26mL水中,同时每克六水合氯化钴中加入1.2-1.3g六亚甲基四胺。
4.根据权利要求1所述的一种热敏变色复合面料,其特征在于,步骤②、步骤③和步骤④中每千克乙二醇中加入十二烷基苯磺酸钠3.5-3.8g,每千克乙二醇中加入水4.3-4.5kg,同时每千克乙二醇中加入粉红色变色晶体1.1-1.2kg,每千克乙二醇中加入二苯甲烷二异氰酸酯4-4.1kg。
5.一种根据权利要求1所述的热敏变色复合面料的制备工艺,其特征在于,具体制备过程如下:
第一步,将棉纤维和羊毛纤维分别进行预处理;
第二步,将改性变色胶囊接枝复合在预处理的棉纤维和羊毛纤维与锦纶纤维上;
第三步,将接枝改性后的棉纤维、羊毛纤维与锦纶纤维进行混纺成混合纱线;
第四步,将海藻酸钠溶于水中,然后向其中加入羧甲基纤维素,搅拌混合形成粘稠的胶状液体,将混纺纱线在胶状液体中滚涂,直到混纺纱线的表面均匀的包裹一层胶状液体为止,然后将混纺纱线在50℃的烘干室中进行烘干,同时将烘干后的混纺纱线进行编制,得到热敏变色复合面料。
6.根据权利要求5所述的一种热敏变色复合面料的制备工艺,其特征在于,海藻酸钠和羧甲基纤维素的质量比为1:0.83-0.87。
7.根据权利要求5所述的一种热敏变色复合面料的制备工艺,其特征在于热敏变色复合面料在温度小于37℃时显示淡粉色,同时当温度大于等于37℃时颜色变为天蓝色。
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