Phase change energy storage low temperature face mask substrate material and preparation method thereof

A phase-change energy storage and energy storage technology, which is applied in the fields of fiber chemical characteristics, medical science, absorbent pads, etc., can solve the problems of mask substrates that have not been disclosed in relevant literature, and achieve improvement and shrinkage of skin pores, good market prospects, and promotion The effect of shrinking pores

Inactive Publication Date: 2009-03-25
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no relevant literature disclosure on the scheme of compounding low-temperature phase-change energy storage materials in the mask base material to make the phase-change energy storage low-temperature mask base material

Method used

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  • Phase change energy storage low temperature face mask substrate material and preparation method thereof
  • Phase change energy storage low temperature face mask substrate material and preparation method thereof
  • Phase change energy storage low temperature face mask substrate material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: prepare the low-temperature mask base material of microcapsule coating structure

[0040] 1) Use paraffin wax with a phase transition temperature of 15°C or 30# paraffin wax microcapsules with a phase transition temperature of 30°C

[0041] Take 4.5g of 30# phase-change paraffin wax with a phase transition temperature of 30°C, add 0.5g of Span80 and Tween 80 in a mass ratio of 0.45:0.55, and dissolve 40g of an aqueous solution containing 0.5wt% polyvinyl alcohol under heating and stirring Add it into the above oil phase, then add 1.1 g of 0.13 wt% KCl solution, continue heating and stirring for 30 min, and fully emulsify the mixed solution. Add 0.5g of 10% acetic acid and 7.2g of ethyl orthosilicate to the above emulsion, place it in a water bath at 60°C, react for 3 hours under stirring, age at room temperature for 5 hours, filter and wash to obtain the phase change energy storage micro capsule. The SEM photograph of the microcapsules is as figure 1 As...

Embodiment 2

[0045] Embodiment 2: prepare another kind of low-temperature mask substrate of microcapsule coating structure

[0046] A mixture of paraffin wax and dodecanoic acid with a phase change temperature of 20°C is selected as the phase change material to make microcapsules, and the prepared microcapsules are added to an aqueous solution containing 0.5 to 8 wt% CMC, stirred evenly to form a slurry, and then used Spraying or brushing is applied to the surface of mask substrates such as non-woven fabrics or dust-free paper to form a coating to make a low-temperature mask substrate. The coating amount of the microcapsules can be 35% of the total weight of the base material of the low-temperature facial mask, and the average particle diameter of the microcapsules is 5-7 μm.

[0047] The difference between the low-temperature mask base material made in Example 2 and the low-temperature mask base material made in Example 1 is that the microcapsules coated on the surface of the non-woven fa...

Embodiment 3

[0048] Embodiment 3: prepare the low-temperature mask base material of microcapsule composite fiber structure

[0049] 1), using 25# paraffin microcapsules with a phase transition temperature of 25°C

[0050] Take 4.5g of 25# paraffin wax with a phase transition temperature of 25°C, add 1.5g of emulsifier compounded by Span 80 and Tween 80 in a mass ratio of 0.4:0.6, add 60g of a 1.5wt% aqueous solution containing polyvinyl alcohol under heating and stirring conditions , and then add 1.1 g of 0.13 wt % NaCl solution, and emulsify for 30 min under heating and stirring. After the emulsification is relatively complete, add 0.25g of 1wt% hydrochloric acid solution and 21.6g of ethyl orthosilicate, place in a water bath at 60°C for 3 hours under stirring, age for 5 hours, filter and wash to obtain phase change energy storage microcapsules. The enthalpy value of the microcapsules during the phase change process is 58.6J / g, and the content of 25# phase change wax (the enthalpy value...

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Abstract

The invention provides a base material for a phase-transforming energy-storing low-temperature facial mask, which includes nonwoven fabrics, phase-transforming energy-storing micro-capsule, small balls or powders or the mixture thereof are compounded on the surface of the nonwoven fabrics or into the fiber of the nonwoven fabrics, and the weight of these energy-storing substances account for 20-60% of the total weight of the base material of the facial mask. The base material is prepared by the following steps: adding the produced energy-storing balls, powder, micro-capsule or the mixture thereof into a viscose fiber solution to prepare the fiber, and then producing the fabrics by using the fiber; or producing the energy-storing substances into paste materials and coating the paste materials on the surface of the nonwoven cloth to form a coating layer and then produce the low-temperature base material of the facial mask. The invention compounds the low-temperature phase-transforming energy-storing material into the traditional base material of the facial mask, and the traditional nonwoven fabric for the facial mask can be replaced. Experiments indicate that the low-temperature facial mask prepared by the low-temperature base material has longer holding time by 20-60% compared with the traditional product at the low temperature; furthermore, the way of shrinking the pores by low temperature is innocuous and harmless to the skin, therefore, the product has bright market prospect.

Description

technical field [0001] The invention relates to a facial mask for local application on the human body, in particular to a phase-change energy storage low-temperature mask base material and a preparation method thereof. The mask base material of the invention is used to make a mask, which can be kept in a low-temperature state for a longer period of time than existing masks. Background technique [0002] Masks with skin-improving effects are existing products produced on a large scale. The common ones include washing-off masks and stick-on masks that use non-woven fabrics or dust-free paper as substrates. One of its types is to use the refrigerator to refrigerate the mask for a period of time before using it, and then attach (attached mask) or coat (washed mask) on the face, and use low temperature to promote the pores of the attached or coated area. purpose of contraction. Utilizing the low temperature effect of the mask to achieve the purpose of promoting the shrinkage of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M23/12D06M15/01D06M13/188D01F2/10D06M23/00D06M13/02A61L15/34A61L15/28A61L15/20
Inventor 唐国翌马素德
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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