CN109387298A - 具有热致变色和光致变色性质的液体胶囊 - Google Patents

具有热致变色和光致变色性质的液体胶囊 Download PDF

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CN109387298A
CN109387298A CN201810839431.5A CN201810839431A CN109387298A CN 109387298 A CN109387298 A CN 109387298A CN 201810839431 A CN201810839431 A CN 201810839431A CN 109387298 A CN109387298 A CN 109387298A
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N·弗朗索瓦
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Abstract

本发明涉及一种胶囊(CS)，其包含含有透明导热液体(L)、具有热致变色涂层的颗粒(A)和具有光致变色涂层的颗粒(B)的壳(CQ)，热致变色颗粒(A)比光致变色颗粒(B)体积大，在第一温度范围内，液体(L)的密度大于热致变色颗粒(A)的密度并且大于光致变色颗粒(B)的密度。并且，在比第一范围的温度高的第二温度范围内，光致变色颗粒(B)的密度小于液体(L)的密度，液体(L)的密度小于热致变色颗粒(A)的密度。

Description

具有热致变色和光致变色性质的液体胶囊
发明领域
本发明涉及热致变色组件和光致变色组件，特别是应用于制表领域。
背景技术
已知当温度升至阈值以上或降至阈值以下时，热致变色胶囊可逆地改变颜色。专利文献EP 0 602 537 A1特别描述了一种手表，该手表设有基于这种胶囊制造的温度指示装置。手表可以指示发现的环境温度，不管手表是否被佩戴。
还已知光致变色胶囊，其在暴露于光线的反应中可逆地改变颜色。专利文献CH710 489特别描述了一种带有边框的手表，该边框包括基于这种胶囊生产的指示器。
然而，具有可具有热致变色和光致变色性质的可用胶囊将是有利的。
发明内容
因此，本发明的目的是提供一种具有热致变色性质和光致变色性质的胶囊。
为此，本发明涉及如权利要求1所定义的胶囊。
在第一温度范围内，热致变色颗粒和光致变色颗粒使得它们的密度小于液体的密度。因此，它们悬浮在液体中。由于热致变色颗粒比光致变色颗粒更大，因此胶囊中的主要作用是热致变色。
在高于第一温度范围的第二温度范围内，液体具有比第一范围低的密度。热致变色颗粒使得它们的密度大于液体的密度，而光致变色颗粒使得它们的密度低于液体的密度。因此，热致变色颗粒下沉，而光致变色颗粒保持悬浮状态：因此胶囊中的主要作用是光致变色。
在权利要求2至7中给出了本发明的其他有利特征。这些特征可以独立地或根据所有技术上可能的组合来考虑。
附图简要说明
通过参考附图，通过指示并且没有任何限制，从下面的描述中清楚地显现出其他区别特征和优点，附图表示：
-在图1中，根据本发明实施方案的胶囊，当其温度处于第一温度范围内时。
-在图2中，图1的胶囊，当其温度处于第二较高温度范围内时。
优选实施方案的详细描述
图1表示包含透明密封壳的胶囊。壳包含透明液体，其不形成对紫外线的屏障，其是导热的并且在优选温度下具有高热膨胀，其将表示为Tx。例如，它可以是具有熔点Tx的液体石蜡和甘油之间的油性混合物。壳还包含两种类型的颗粒。第一颗粒涂有热致变色涂层；它们将被称为热致变色颗粒。第二颗粒涂有光致变色涂层；它们将被称为光致变色颗粒。这些颗粒以球形的形式提供，因此可以更容易下沉(相对于条形颗粒)。选择热致变色和光致变色涂层以耐受油性介质。还选择它们以便具有彩色过渡阈值，这使得可以在将胶囊放置在所述钟表或珠宝首饰的壁上的情况下给出有利信息，特别是对于钟表或珠宝首饰的佩戴者。该信息可以是温度、光强度、对健康有害的紫外线辐射水平等。
热致变色颗粒和光致变色颗粒具有例如100至500微米的直径。此外，热致变色颗粒的体积大于光致变色颗粒的体积。最后，热致变色颗粒的密度高于光致变色颗粒的密度。
在第一温度范围内，例如在0℃和10℃之间，液体的密度大于热致变色颗粒的密度并且大于光致变色颗粒的密度。因此，热致变色颗粒和光致变色颗粒悬浮在液体中。然而，光致变色颗粒被热致变色颗粒掩盖，热致变色颗粒具有更大的体积并因此具有更大的色彩能力。因此，胶囊中的主导美学效果是热致变色。
在包括比第一范围的温度更高的温度的第二温度范围内，例如10℃至30℃，液体的密度低于其在第一温度范围内的密度。液体的密度使得它大于光致变色颗粒的密度但低于热致变色颗粒的密度。因此，更致密的热致变色颗粒沉淀出来，也就是说下沉并沉积在壳的底部。另一方面，光致变色颗粒保持悬浮状态。因此，胶囊中的主导美学效果是光致变色。
应当注意，在一个实施方案中，壳另外包含第三类颗粒，光致发光颗粒，其使得可以在夜间看到有色过渡。
当然，本发明不限于所示的示例，而是能够具有本领域技术人员显而易见的各种替代形式和修改。

Claims (7)

1.胶囊(CS)，其包含含有透明导热液体(L)、具有热致变色涂层的颗粒(A)和具有光致变色涂层的颗粒(B)的壳(CQ)，热致变色颗粒(A)比光致变色颗粒(B)体积大，在第一温度范围内，液体(L)的密度大于热致变色颗粒(A)的密度并且大于光致变色颗粒(B)的密度，在比第一范围的温度高的第二温度范围内，光致变色颗粒(B)的密度小于液体(L)的密度，液体(L)的密度小于热致变色颗粒(A)的密度。
2.根据前述权利要求的胶囊(CS)，液体(L)是油性混合物，其不形成对紫外线的屏障。
3.根据前述权利要求的胶囊(CS)，液体(L)包含液体石蜡和甘油。
4.根据权利要求1的胶囊(CS)，热致变色颗粒(A)和光致变色颗粒(B)具有球形形状。
5.根据权利要求1的胶囊(CS)，热致变色颗粒(A)和光致变色颗粒(B)具有100-500微米的直径。
6.根据权利要求1的胶囊(CS)，壳(CQ)另外包含光致发光颗粒。
7.钟表或珠宝首饰，包括壁，所述壁包括由根据权利要求1的胶囊(CS)组成的涂层。
CN201810839431.5A 2017-08-09 2018-07-27 具有热致变色和光致变色性质的液体胶囊 Active CN109387298B (zh)

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