CN111493722A - Antibacterial wet tissue and preparation method thereof - Google Patents
Antibacterial wet tissue and preparation method thereof Download PDFInfo
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- CN111493722A CN111493722A CN202010480628.1A CN202010480628A CN111493722A CN 111493722 A CN111493722 A CN 111493722A CN 202010480628 A CN202010480628 A CN 202010480628A CN 111493722 A CN111493722 A CN 111493722A
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- antibacterial
- layer
- porous graphene
- wet tissue
- woven fabric
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/16—Paper towels; Toilet paper; Holders therefor
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F13/00—Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web, for fibreboard production
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/50—Spraying or projecting
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Paper (AREA)
Abstract
The invention relates to an antibacterial wet tissue which at least has a three-layer structure. Through setting up antibiotic layer between upper non-woven fabrics and lower floor's non-woven fabrics, can avoid the direct contact of user at the antiseptic, reduce the adverse effect that the antiseptic caused to the human body. The antibacterial wet tissue does not contain chemical components such as alcohol, preservatives and the like, and has no irritation and sensitization, safety and good comfort. By using the graphene-containing composite antibacterial layer as the middle antibacterial layer, particularly using the porous graphene as a carrier, the antibacterial agent which is uniformly distributed can be obtained, and the silver and the titanium dioxide are stably loaded in the porous graphene, so that the antibacterial effect is stable and reliable.
Description
Technical Field
The invention belongs to the field of papermaking, and relates to a wet tissue, in particular to an antibacterial wet tissue and a preparation method thereof.
Background
The wet tissue is a common sanitary product in daily life, and particularly for infants, the frequency of using the wet tissue is high. There is an increasing variety of wet tissue products that follow.
In general, consumers generally pay attention to whether wet tissues have antibacterial and bactericidal functions when selecting the wet tissues. With the successful sale of the antibacterial wet tissues, the antibacterial wet tissues on the market are more and more, and the quality of the antibacterial wet tissues is more and more uneven.
The common antibacterial wet tissue on the market usually comprises certain components such as alcohol or preservative. These ingredients, while they may be disinfectant, antimicrobial or preservative, are generally toxic and are relatively permeable. For infants, the skin is delicate, and the functions of sebaceous glands, sweat glands and the like are not developed and matured. These toxic substances with strong permeability are easily enriched in the infant body, and adversely affect the growth, development, safety, etc. of the infant.
Although there are ethanol-free antibacterial wet tissues on the market, these wet tissues usually have antibacterial agents directly added to the wet tissues, and users are easy to directly contact the antibacterial agents in the wet tissues. This procedure, while ensuring the antibacterial effect, has some adverse effects.
Therefore, the invention aims to provide the antibacterial wet tissue which is safe and comfortable and has stable antibacterial effect, and is particularly suitable for infants.
Disclosure of Invention
In order to solve the technical problems, the invention provides an antibacterial wet tissue which is safe and comfortable and is particularly suitable for infants and has stable antibacterial effect. The wet tissue at least comprises a three-layer structure, an upper non-woven fabric layer, a lower non-woven fabric layer and a middle antibacterial layer. Through setting up antibiotic layer between upper non-woven fabrics and lower floor's non-woven fabrics, can avoid the direct contact of user at the antiseptic, reduce the adverse effect that the antiseptic caused to the human body.
Accordingly, in one aspect, the present invention provides an antibacterial wet wipe having at least a three-layer structure, wherein the three-layer structure includes an upper nonwoven fabric layer, a lower nonwoven fabric layer, and an intermediate antibacterial layer.
Further, in order to ensure that the three-layer structure in the wet tissue is stably attached to each other, it is preferable to use a viscose non-woven fabric for the upper and lower non-woven fabric layers.
The viscose non-woven fabric comprises the following components in parts by mass: 30-50 parts of bamboo fiber, 20-30 parts of cotton fiber and 10-20 parts of loofah sponge. The bamboo fiber, the cotton fiber and the loofah sponge are sequentially crushed, ground and pulped, and then the bamboo fiber, the cotton fiber and the loofah sponge are manufactured on a wet paper machine.
The middle antibacterial layer is a graphene-containing composite antibacterial layer and is selected from one of a porous graphene silver-loaded composite antibacterial layer, a porous graphene silver-loaded titanium dioxide composite antibacterial layer and a porous graphene titanium dioxide composite antibacterial layer.
Furthermore, the upper non-woven fabric layer and/or the lower non-woven fabric layer also comprise additives such as aloe, glycerol and the like.
On the other hand, the invention also provides a preparation method of the antibacterial wet tissue, which comprises the following steps:
(1) sequentially crushing, grinding and pulping the bamboo fiber, the cotton fiber and the loofah sponge according to the proportion, and then manufacturing a wet tissue semi-finished product A on a wet paper machine;
(2) preparing a porous graphene quantum dot dispersion solution, weighing porous graphene to prepare a dispersion solution of 2-5 g/L, using water as a solvent, carrying out ultrasonic stirring under the conditions of 800W of stirring power and 300rpm of stirring speed, simultaneously adding 0.02-0.05 mol/L of silver salt and/or titanium source solution into the dispersion solution, and carrying out uniform ultrasonic stirring to obtain the porous graphene quantum dot dispersion solution;
(3) respectively spraying the porous graphene quantum dot dispersion solution prepared in the step (2) on one surface of two wet tissue semi-finished products A, wherein the spraying amount is 20-50ml/m2After air drying, the spraying surfaces of the two wet tissue semi-finished products A sprayed with the porous graphene quantum dot dispersion solution are bonded together to obtain an antibacterial wet tissue semi-finished product B;
(4) and (3) immersing the semi-finished product B of the antibacterial wet tissue into a strong ammonia water solution, heating to 80-100 ℃, reacting for 3-8 hours to obtain a composite antibacterial layer with a middle antibacterial layer of porous graphene silver-loaded and/or titanium dioxide, taking out and cleaning, and performing subsequent manufacturing procedures as required.
Wherein the pore size of the porous graphene is 1-5 nm.
Compared with the existing antibacterial wet tissue, the antibacterial wet tissue has the following beneficial effects:
1. through setting up antibiotic layer between upper non-woven fabrics and lower floor's non-woven fabrics, can avoid the direct contact of user at the antiseptic, reduce the adverse effect that the antiseptic caused to the human body.
2. The antibacterial wet tissue does not contain chemical components such as alcohol, preservatives and the like, and has no irritation and sensitization, safety and good comfort.
3. By using the graphene-containing composite antibacterial layer as the middle antibacterial layer, particularly using the porous graphene as a carrier, the antibacterial agent which is uniformly distributed can be obtained, and the silver and the titanium dioxide are stably loaded in the porous graphene, so that the antibacterial effect is stable and reliable.
Detailed Description
The present invention will be described in detail with reference to specific examples. Of course, the described embodiments are merely inventive in part, and not in whole. Other examples, which would be obtained by one of ordinary skill in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
An antibacterial wet tissue comprises an upper non-woven fabric layer, a lower non-woven fabric layer and a middle antibacterial layer, wherein the upper non-woven fabric layer and the lower non-woven fabric layer are viscose non-woven fabrics and comprise the following components in parts by mass: 40 parts of bamboo fiber, 30 parts of cotton fiber and 20 parts of loofah sponge.
The preparation method of the antibacterial wet tissue comprises the following steps:
(1) sequentially crushing, grinding and pulping the bamboo fiber, the cotton fiber and the loofah sponge according to the proportion, and then manufacturing a wet tissue semi-finished product A on a wet paper machine;
(2) preparing a porous graphene quantum dot dispersion solution, weighing porous graphene to prepare a 4 g/L dispersion solution, taking water as a solvent, carrying out ultrasonic stirring under the conditions of 800W of stirring power and 300rpm of stirring speed, simultaneously adding 0.03 mol/L of silver salt solution into the dispersion solution, and carrying out ultrasonic stirring uniformly to obtain the porous graphene quantum dot dispersion solution;
(3) respectively spraying the porous graphene quantum dot dispersion solution prepared in the step (2) on one surface of two wet tissue semi-finished products A, wherein the spraying amount is 40ml/m2Air dryingThen, the spraying surfaces of the two wet tissue semi-finished products A sprayed with the porous graphene quantum dot dispersion solution are bonded together to obtain an antibacterial wet tissue semi-finished product B;
(4) and (3) immersing the semi-finished product B of the antibacterial wet tissue into a strong ammonia water solution, heating to 100 ℃, reacting for 4 hours to obtain a composite antibacterial layer with a middle antibacterial layer being porous graphene silver-loaded, taking out and cleaning, and performing subsequent manufacturing procedures as required.
Example 2
An antibacterial wet tissue comprises an upper non-woven fabric layer, a lower non-woven fabric layer and a middle antibacterial layer, wherein the upper non-woven fabric layer and the lower non-woven fabric layer are viscose non-woven fabrics and comprise the following components in parts by mass: 50 parts of bamboo fiber, 20 parts of cotton fiber and 15 parts of loofah sponge.
The preparation method of the antibacterial wet tissue comprises the following steps:
(1) sequentially crushing, grinding and pulping the bamboo fiber, the cotton fiber and the loofah sponge according to the proportion, and then manufacturing a wet tissue semi-finished product A on a wet paper machine;
(2) preparing a porous graphene quantum dot dispersion solution, weighing porous graphene to prepare a dispersion solution of 2 g/L, taking water as a solvent, ultrasonically stirring, wherein the ultrasonic stirring condition is 800W of stirring power and 300rpm of stirring speed, simultaneously adding 0.05 mol/L of titanium source solution into the dispersion solution, and ultrasonically stirring uniformly to obtain the porous graphene quantum dot dispersion solution;
(3) respectively spraying the porous graphene quantum dot dispersion solution prepared in the step (2) on one surface of two wet tissue semi-finished products A, wherein the spraying amount is 50ml/m2After air drying, the spraying surfaces of the two wet tissue semi-finished products A sprayed with the porous graphene quantum dot dispersion solution are bonded together to obtain an antibacterial wet tissue semi-finished product B;
(4) and (3) immersing the semi-finished product B of the antibacterial wet tissue into a strong ammonia water solution, heating to 80 ℃, reacting for 8 hours to obtain a composite antibacterial layer with a porous graphene titanium dioxide-loaded middle antibacterial layer, taking out and cleaning, and performing subsequent manufacturing procedures as required.
Example 3
An antibacterial wet tissue comprises an upper non-woven fabric layer, a lower non-woven fabric layer and a middle antibacterial layer, wherein the upper non-woven fabric layer and the lower non-woven fabric layer are viscose non-woven fabrics and comprise the following components in parts by mass: 30 parts of bamboo fiber, 30 parts of cotton fiber and 20 parts of loofah sponge.
The preparation method of the antibacterial wet tissue comprises the following steps:
(1) sequentially crushing, grinding and pulping the bamboo fiber, the cotton fiber and the loofah sponge according to the proportion, and then manufacturing a wet tissue semi-finished product A on a wet paper machine;
(2) preparing a porous graphene quantum dot dispersion solution, weighing porous graphene to prepare a 3 g/L dispersion solution, taking water as a solvent, ultrasonically stirring, adding 0.02 mol/L of silver salt and titanium source solution into the dispersion solution under the ultrasonic stirring condition of 800W of stirring power and 300rpm of stirring speed, and ultrasonically stirring uniformly to obtain the porous graphene quantum dot dispersion solution;
(3) respectively spraying the porous graphene quantum dot dispersion solution prepared in the step (2) on one surface of two wet tissue semi-finished products A, wherein the spraying amount is 20ml/m2After air drying, the spraying surfaces of the two wet tissue semi-finished products A sprayed with the porous graphene quantum dot dispersion solution are bonded together to obtain an antibacterial wet tissue semi-finished product B;
(4) and (3) immersing the semi-finished product B of the antibacterial wet tissue into a strong ammonia water solution, heating to 90 ℃, reacting for 5 hours to obtain a composite antibacterial layer with a middle antibacterial layer of porous graphene silver-loaded and titanium dioxide, taking out and cleaning, and performing subsequent manufacturing procedures as required.
Example 4
An antibacterial wet tissue comprises an upper non-woven fabric layer, a lower non-woven fabric layer and a middle antibacterial layer, wherein the upper non-woven fabric layer and the lower non-woven fabric layer are viscose non-woven fabrics and comprise the following components in parts by mass: 45 parts of bamboo fiber, 27 parts of cotton fiber and 18 parts of loofah sponge.
The preparation method of the antibacterial wet tissue comprises the following steps:
(1) sequentially crushing, grinding and pulping the bamboo fiber, the cotton fiber and the loofah sponge according to the proportion, and then manufacturing a wet tissue semi-finished product A on a wet paper machine;
(2) preparing a porous graphene quantum dot dispersion solution, weighing porous graphene to prepare a 4 g/L dispersion solution, taking water as a solvent, carrying out ultrasonic stirring under the conditions of 800W of stirring power and 300rpm of stirring speed, simultaneously adding 0.03 mol/L of silver salt solution into the dispersion solution, and carrying out ultrasonic stirring uniformly to obtain the porous graphene quantum dot dispersion solution;
(3) respectively spraying the porous graphene quantum dot dispersion solution prepared in the step (2) on one surface of two wet tissue semi-finished products A, wherein the spraying amount is 30ml/m2After air drying, the spraying surfaces of the two wet tissue semi-finished products A sprayed with the porous graphene quantum dot dispersion solution are bonded together to obtain an antibacterial wet tissue semi-finished product B;
(4) and (3) immersing the semi-finished product B of the antibacterial wet tissue into a strong ammonia water solution, heating to 95 ℃, reacting for 3 hours to obtain a composite antibacterial layer with a middle antibacterial layer being porous graphene silver-loaded, taking out and cleaning, and performing subsequent manufacturing procedures as required.
Example 5
An antibacterial wet tissue comprises an upper non-woven fabric layer, a lower non-woven fabric layer and a middle antibacterial layer, wherein the upper non-woven fabric layer and the lower non-woven fabric layer are viscose non-woven fabrics and comprise the following components in parts by mass: 35 parts of bamboo fiber, 25 parts of cotton fiber and 10 parts of loofah sponge.
The preparation method of the antibacterial wet tissue comprises the following steps:
(1) sequentially crushing, grinding and pulping the bamboo fiber, the cotton fiber and the loofah sponge according to the proportion, and then manufacturing a wet tissue semi-finished product A on a wet paper machine;
(2) preparing a porous graphene quantum dot dispersion solution, weighing porous graphene to prepare a 5 g/L dispersion solution, taking water as a solvent, carrying out ultrasonic stirring under the conditions of 800W of stirring power and 300rpm of stirring speed, simultaneously adding 0.05 mol/L of titanium source solution into the dispersion solution, and carrying out ultrasonic stirring uniformly to obtain the porous graphene quantum dot dispersion solution;
(3) respectively spraying the porous graphene quantum dot dispersion solution prepared in the step (2) on one surface of two wet tissue semi-finished products A, wherein the spraying amount is 45ml/m2After air drying, the spraying surfaces of the two wet tissue semi-finished products A sprayed with the porous graphene quantum dot dispersion solution are bonded together to obtain an antibacterial wet tissue semi-finished product B;
(4) and (3) immersing the semi-finished product B of the antibacterial wet tissue into a strong ammonia water solution, heating to 100 ℃, reacting for 3 hours to obtain a composite antibacterial layer with a porous graphene titanium dioxide-loaded middle antibacterial layer, taking out and cleaning, and performing subsequent manufacturing procedures as required.
Claims (8)
1. The antibacterial wet tissue is at least of a three-layer structure, and is characterized in that the three-layer structure comprises an upper non-woven fabric layer, a lower non-woven fabric layer and a middle antibacterial layer.
2. The antibacterial wet wipe as set forth in claim 1, wherein: the upper non-woven fabric layer and the lower non-woven fabric layer are preferably viscose non-woven fabrics.
3. The antibacterial wet wipe as set forth in claim 2, wherein: the viscose non-woven fabric comprises the following components in parts by mass: 30-50 parts of bamboo fiber, 20-30 parts of cotton fiber and 10-20 parts of loofah sponge, and the bamboo fiber, the cotton fiber and the loofah sponge are sequentially crushed, ground, made into pulp and then made into the loofah sponge by a wet paper machine.
4. The antibacterial wet wipe as set forth in claim 1, wherein: the middle antibacterial layer is a graphene-containing composite antibacterial layer and is selected from one of a porous graphene silver-loaded composite antibacterial layer, a porous graphene silver-loaded titanium dioxide composite antibacterial layer and a porous graphene titanium dioxide composite antibacterial layer.
5. The antibacterial wet wipe as set forth in claim 1, wherein: the upper non-woven fabric layer and/or the lower non-woven fabric layer also comprise additives such as aloe, glycerol and the like.
6. A method for preparing the antibacterial wet wipe as set forth in any one of claims 1 to 5, comprising the steps of:
(1) sequentially crushing, grinding and pulping the bamboo fiber, the cotton fiber and the loofah sponge according to the proportion, and then manufacturing a wet tissue semi-finished product A on a wet paper machine;
(2) preparing a porous graphene quantum dot dispersion solution, weighing porous graphene to prepare a dispersion solution of 2-5 g/L, using water as a solvent, carrying out ultrasonic stirring under the conditions of 800W of stirring power and 300rpm of stirring speed, simultaneously adding 0.02-0.05 mol/L of silver salt and/or titanium source solution into the dispersion solution, and carrying out uniform ultrasonic stirring to obtain the porous graphene quantum dot dispersion solution;
(3) respectively spraying the porous graphene quantum dot dispersion solution prepared in the step (2) on one surface of two wet tissue semi-finished products A, wherein the spraying amount is 20-50ml/m2After air drying, the spraying surfaces of the two wet tissue semi-finished products A sprayed with the porous graphene quantum dot dispersion solution are bonded together to obtain an antibacterial wet tissue semi-finished product B;
(4) and (3) immersing the semi-finished product B of the antibacterial wet tissue into a strong ammonia water solution, heating to 80-100 ℃, reacting for 3-8 hours to obtain a composite antibacterial layer with a middle antibacterial layer of porous graphene silver-loaded and/or titanium dioxide, taking out and cleaning, and performing subsequent manufacturing procedures as required.
7. The method of claim 6, wherein: the pore size of the porous graphene is 1-5 nm.
8. The method of claim 6, wherein: the subsequent process comprises applying additives such as aloe, glycerol, etc.
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| CN202010480628.1A CN111493722A (en) | 2020-05-30 | 2020-05-30 | Antibacterial wet tissue and preparation method thereof |
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| CN111172749A (en) * | 2020-02-28 | 2020-05-19 | 同曦集团有限公司 | Antibacterial and antiviral non-woven fabric, preparation method thereof and mask comprising antibacterial and antiviral non-woven fabric |
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