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Grape-shaped microparticle aggregates, preparation method thereof, and sanitary paper

A technology of aggregates and microparticles, applied in the preparation of microspheres, botanical equipment and methods, microcapsule preparations, etc., can solve problems such as difficult mass production, inability to use water-insoluble components, and difficulty in reducing medicinal solutions.

Active Publication Date: 2022-04-12
ELETEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The above-mentioned microencapsulation techniques have the following problems in any technique: the process is complicated in industrial production, and it is difficult to mass-produce
Although the liquid medicine has a bactericidal effect, it is an unwanted component of the human body. It should be reduced as much as possible, but it is difficult to reduce the liquid medicine
[0027] In addition, there are problems in that the weight of the product becomes heavy due to impregnation with the chemical solution, and the shelf life of the product provided in a sealed state is shortened once the package is opened
In addition, there is also the following problem: Since the aqueous solution is impregnated into the paper, it is impossible to use water-insoluble components, etc.

Method used

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  • Grape-shaped microparticle aggregates, preparation method thereof, and sanitary paper
  • Grape-shaped microparticle aggregates, preparation method thereof, and sanitary paper
  • Grape-shaped microparticle aggregates, preparation method thereof, and sanitary paper

Examples

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preparation example Construction

[0085] [Preparation process of bactericidal nanocapsules]

[0086] figure 2 It is a flow chart showing an example of a method for producing sanitary paper using the bactericidal nanocapsules and grape-like particle aggregates according to the present invention.

[0087] Below, refer to Figure 1 ~ Figure 4 An example of the method of the present invention will be described.

[0088]

[0089] First, prepare a quaternary ammonium salt solution ( figure 2 Process P1).

[0090] In this process, chitosan quaternary ammonium salt (2-hydroxypropyltrimethylammonium chloride chitosan) is used as the quaternary ammonium salt.

[0091] In the case of the present invention, the concentration of the chitosan quaternary ammonium salt aqueous solution is not particularly limited, but it is preferably set to 20 to 1000 ppm from the viewpoint of the cosmetic drug addition index based on each country.

[0092]

[0093] Next, make core particles 2 ( figure 2 Process P2).

[0094] I...

Embodiment

[0181] Hereinafter, the present invention is illustrated by examples, but it is not intended to limit the present invention.

[0182] In addition, unless otherwise specified, "%" described below represents "% by weight".

[0183] [Production of bactericidal nanocapsules]

[0184] First, an aqueous chitosan quaternary ammonium salt solution with a concentration of 1000 ppm was prepared.

[0185] 45 g of this chitosan quaternary ammonium salt aqueous solution was accommodated in the container of the above-mentioned processing device, and the container was rotated at high speed while vacuum exhausting in the container and introduction of air into the container were performed.

[0186] In this case, gradually increase the rotation speed of the container (8,000 ~ 12,000rpm), gradually increase the amount of vacuum exhaust in the container, and at the same time gradually reduce the amount of air introduced into the container, so that the air in the container The pressure is gradua...

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Abstract

The object of the present invention is to provide grape-shaped particle aggregates and sanitary paper technology using the particle aggregates. The bactericidal effect is reduced, which can minimize the impact on the human body. The solution is that the bactericidal nanocapsule (1) of the present invention has: a nano-sized core particle (2) containing a quaternary ammonium salt; a water-resistant first coating layer (11), which is set to cover the core particle (2) surface; the second coating layer (12) of water resistance is arranged to cover the surface of the first coating layer (11); and the third coating layer (13) of water resistance is arranged to cover the surface of the second coating layer (12) and is cationized.

Description

technical field [0001] The present invention relates to: a grape-shaped microparticle aggregate obtained by attaching nanocapsules of a drug having a coating layer to nanofibers made of a polymer material such as PP (polypropylene); and sanitary paper (sanitary paper) using the microparticle aggregate. )Technology. Background technique [0002] In recent years, nanofibers, which have attracted attention, are not only used alone due to their own physical properties, but also are being used in a wide range of fields such as general-purpose products, filter materials, electronic components, automotive components, and medical / biological materials in the field of composite materials. Practical applications have been obtained, and application development is also being actively carried out. [0003] The main features of nanofibers can be listed: 1) Super specific surface area effect (high adsorption, strong adhesion, high molecular recognition), 2) Nano size effect (low pressure l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/28A01N43/16A01P1/00B01J13/02B01J13/08D21H21/36
CPCA01N25/28A01N43/16B01J13/02B01J13/08D21H21/36
Inventor 黄国铭福岛利明
Owner ELETEN CO LTD
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