Preparation process of oil-absorbing sheet

A preparation process and oil-absorbing paper technology, which can be applied to skin care preparations, medical preparations containing active ingredients, cosmetic preparations, etc. Effect

Inactive Publication Date: 2016-12-07
李冬琼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: powdery oil-absorbing papers will fall off during storage and use; natural fiber oil-absorbing papers may damage delicate skin when used; modified fiber oil-absorbing papers may have chemical raw material residues that are transferred to site of action, causing allergies

Method used

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Embodiment Construction

[0016] The present invention will be described in further detail below, so that those skilled in the art can implement it with reference to the description.

[0017] The invention provides a preparation process of oil-absorbing paper, comprising:

[0018] Step (1) dissolving polylactic acid and poly 3-hydroxybutyrate caproate in an organic solvent to prepare an organic phase of a mixed solution of polylactic acid and poly 3-hydroxybutyrate caproate;

[0019] Step (2) dissolving ammonium bicarbonate in water to prepare the water phase, the concentration of ammonium bicarbonate in the water phase is 4.3~6.7g / L;

[0020] Step (3) Divide the organic phase into 4 to 7 parts, add them to the water phase one by one, and perform homogenization treatment after each part of the organic phase is added. The time for each homogenization treatment is 12 to 25 minutes to obtain an emulsion. Organic The volume ratio of the total amount of phase to the water phase is 6-8:1;

[0021] Step (4)...

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PUM

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Abstract

The invention discloses a preparation process of an oil-absorbing sheet. The process comprises the following steps: (1) preparing an organic phase of a mixed solution of polylactic acid and poly-3-hydroxybutyrate hexanoate by dissolving the polylactic acid and the poly-3-hydroxybutyrate hexanoate into an organic solvent; (2) dissolving ammonium bicarbonate into water to prepare an aqueous phase, wherein the concentration of ammonium bicarbonate in the aqueous phase is 4.3-6.7 g / L; (3) dividing the organic phase into 4-7 parts, gradually adding the parts of the organic phase into the aqueous phase, and carrying out homogenate treatment after adding the organic phase each time, wherein the time for the homogenate treatment each time is 12-25 minutes so as to obtain an emulsion, and the volume ratio of the total organic phase to the aqueous phase is (6-8):1; (4) putting the emulsion at the room temperature for 1-2 hours; (5) freeze-drying for 3-4 hours at the temperature of 10-15 DEG C. The prepared oil-absorbing sheet has an excellent oil-absorbing capability.

Description

technical field [0001] The invention relates to a preparation process of oil-absorbing paper. Background technique [0002] In beauty and skin care, oil-absorbing paper or oil-absorbing film is an important auxiliary tool for facial care, mainly used to absorb and remove oily substances secreted by human facial skin. There are many disadvantages in current oil-absorbing paper or oil-absorbing film. For example: powdery oil-absorbing papers will fall off during storage and use; natural fiber oil-absorbing papers may damage delicate skin when used; modified fiber oil-absorbing papers may have chemical raw material residues that are transferred to The site of action can cause allergies. Therefore, need a kind of oil-absorbing ability more effective, to the oil-absorbing paper of skin nonirritating effect. Contents of the invention [0003] The invention designs and develops an oil-absorbing paper with better oil-absorbing ability and no stimulating effect. [0004] The in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/85A61K8/19A61Q19/00
CPCA61K8/19A61K8/85A61K2800/72A61K2800/84A61Q19/00A61Q19/008
Inventor 李冬琼
Owner 李冬琼
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