Temperature-changeable microcapsule coating and preparation method thereof

A microcapsule and temperature change technology, applied in the field of microcapsules, can solve the problems of low utilization rate of raw materials, toxic temperature range, etc., and achieve the effects of maximizing material utilization rate, wide discoloration temperature range and protecting the environment.

Inactive Publication Date: 2015-09-16
NANCHANG TIM RITT IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects in the prior art that the temperature range is too narrow, toxic gas will be produced during the synthesis process, and the utilization rate of raw materials is low, a temperature-changeable microcapsule coating and its preparation method are provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A temperature-changeable microcapsule coating, characterized in that, in parts by mass, the microcapsule coating comprises the following components:

[0054] 20 parts of temperature-changing microcapsules,

[0055] Adhesive 10 parts,

[0056] 5 parts of spacer,

[0057] 250 parts of water;

[0058] The temperature-changing microcapsules include a core material and a capsule wall covering the core material. The core material includes a solvent, a chromogenic agent and a chromogenic agent, and the chromogenic agent is a phenolphthalein-based or fluorane-based compound containing a lactone ring structure ;

[0059] In parts by mass, the temperature-changing microcapsules include the following components,

[0060] 8 parts of solvent,

[0061] 0.2 parts of coloring agent,

[0062] 0.3 parts of developer,

[0063] 0.3 part of emulsifier,

[0064] 0.2 parts of urea,

[0065] 11 parts of cyst wall.

[0066] The microcapsule coating also includes the following components...

Embodiment 2

[0084] A temperature-changeable microcapsule coating, characterized in that, in parts by mass, the microcapsule coating comprises the following components:

[0085] 35 parts of temperature-changing microcapsules,

[0086] Adhesive 2 parts,

[0087] 8 parts of spacer,

[0088] 100 parts of water;

[0089] The temperature-changing microcapsules include a core material and a capsule wall covering the core material. The core material includes a solvent, a chromogenic agent and a chromogenic agent, and the chromogenic agent is a phenolphthalein-based or fluorane-based compound containing a lactone ring structure ;

[0090] In parts by mass, the temperature-changing microcapsules include the following components,

[0091] 12 parts of solvent,

[0092] 1 part hair coloring agent,

[0093] 1 part of developer,

[0094] 0.5 part of emulsifier,

[0095] 0.5 parts of urea,

[0096] 20 parts of capsule wall.

[0097] The microcapsule coating also includes the following component...

Embodiment 3

[0111] A temperature-changeable microcapsule coating, characterized in that, in parts by mass, the microcapsule coating comprises the following components:

[0112] 64.7 parts of temperature-changing microcapsules,

[0113] Adhesive 6 parts,

[0114] 2 parts spacer,

[0115] 200 parts of water;

[0116] The temperature-changing microcapsules include a core material and a capsule wall covering the core material. The core material includes a solvent, a chromogenic agent and a chromogenic agent, and the chromogenic agent is a phenolphthalein-based or fluorane-based compound containing a lactone ring structure ;

[0117] In parts by mass, the temperature-changing microcapsules include the following components,

[0118] 20 parts of solvent,

[0119] 1.2 parts of hair coloring agent,

[0120] 1.5 parts of developer,

[0121] 1 part emulsifier,

[0122] 4 parts of urea,

[0123] 37 parts of cyst wall.

[0124] The microcapsule coating also includes the following components:...

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Abstract

The invention discloses a temperature-changeable microcapsule coating which comprises the following components in parts by mass: 20-50 parts of temperature-changeable microcapsules, 2-8 parts of a spacing agent, 2-10 parts of an adhesive and 100-250 parts of water, wherein each temperature-changeable microcapsule comprises a core material and a capsule wall coating the core material; the core material comprises a solvent, a color former and a color developing agent; and the color former is a phenolphthalein or fluoran compound containing a lactonic ring structure. The temperature-changeable microcapsule coating disclosed by the invention is relatively wide in color changing temperature range, and can be subjected to color changing reaction in a temperature range of 30-80 DEG C, and urea is added during the preparation of microcapsule powder to absorb formaldehyde in a capsule wall material, so that the maximization of the material utilization rate is realized, and the surrounding environment is protected.

Description

technical field [0001] The invention relates to the field of microcapsules, in particular to a temperature-changeable microcapsule coating and a preparation method thereof. Background technique [0002] Microencapsulation began in the 1950s, but it has developed very rapidly. So far, more than one hundred research laboratories are developing microencapsulation technology. Microencapsulation technology: refers to the technology of embedding solids, liquids or gases in tiny and sealed capsules so that they can be released at a controlled rate only under specific conditions. Among them, the embedded substances are called core materials, including flavors and fragrances, acidulants, sweeteners, pigments, lipids, vitamins, minerals, enzymes, microorganisms, gases and other various feed additives. The substance that embeds the core material to achieve microencapsulation is called the wall material. Microcapsules can effectively reduce the reaction of active substances to exter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D129/04C09D101/28C09D125/14C09D109/08C09D131/04C09D103/02C09D5/26C09D7/12C09K9/02
Inventor 罗晓林刘萍唐国强
Owner NANCHANG TIM RITT IND
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