CN116870232B

CN116870232B - Integrated menstrual pants composite core and preparation method thereof

Info

Publication number: CN116870232B
Application number: CN202310863956.3A
Authority: CN
Inventors: 李敬
Original assignee: Guangdong Meideng New Material Technology Co ltd
Current assignee: Guangdong Meideng New Material Technology Co ltd
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2024-04-16
Anticipated expiration: 2043-07-14
Also published as: CN116870232A

Abstract

The invention discloses an integrated menstrual trousers composite core and a preparation method thereof, relating to the field of core materials; the integrated menstrual trousers composite core body comprises an antibacterial surface layer, an antibacterial diversion layer, a first adhesive layer, an antibacterial absorption layer, a second adhesive layer and a breathable bottom layer which are sequentially arranged, wherein the antibacterial surface layer and the antibacterial diversion layer both comprise fluff pulp and antibacterial fibers, and the antibacterial absorption layer comprises super absorbent resin slurry and antibacterial fibers; the antibacterial fiber is obtained by a spinning solution through a spinning technology, wherein the spinning solution comprises carboxymethyl cellulose, polyether amine, diisocyanate, 3-glycidol ether oxypropyl trimethoxy silane, a composite catalyst, nano silver powder, a diluent and water in a specific ratio. The nanometer silver powder in the antibacterial fiber can be stably loaded on the antibacterial fiber, and the antibacterial fiber is applied to the menstrual pants composite core body, so that the antibacterial effect of the composite core body can be effectively improved, and the problems of foreign odor or skin allergy caused after the menstrual pants are used for a long time can be prevented.

Description

Integrated menstrual pants composite core and preparation method thereof

Technical Field

The invention relates to the field of core materials, in particular to an integrated menstrual trousers composite core and a preparation method thereof.

Background

The integrated menstrual pants are disposable female sanitary products, are technical upgrades of the night sanitary towel, jump out of the thinking setting of lengthening and widening the original night sanitary towel, really meet the internal requirements of the female for four-sleep and peace sleep during menstrual period, and have the advantages of better cladding property, better sealing property and longer wearing time.

However, as people use the menstrual pants for a long time, the temperature of the inner composite core body of the menstrual pants is easily increased, so that the integral menstrual pants are easy to grow bacteria and generate peculiar smell.

At present, in order to improve the antibacterial performance of the integrated menstrual pants, the integrated menstrual pants are generally prepared by adopting a composite core with antibacterial performance from a composite core which is a key component of the integrated menstrual pants, so as to obtain the integrated menstrual pants with antibacterial effect.

In the related art, a composite core having antibacterial properties generally includes an antibacterial facing layer, an antibacterial flow guiding layer, an antibacterial absorbing layer, and a bottom layer. The antibacterial surface layer and the antibacterial diversion layer are made of silver-loaded antibacterial fibers and fluff pulp, and the antibacterial absorption layer is made of super absorbent resin and silver-loaded antibacterial fibers. The silver-loaded antibacterial fiber is generally prepared by spraying a nano silver solution on the fiber and then drying. The silver-loaded antibacterial fiber can resist bacteria, but nano silver attached to the surface of the antibacterial fiber is physically adsorbed, so that nano silver of an antibacterial surface layer prepared by adopting the silver-loaded antibacterial fiber is easy to fall off from the fiber, and the antibacterial surface layer, the antibacterial diversion layer and the antibacterial absorption layer are poor in antibacterial stability, so that peculiar smell is easy to be emitted when the menstrual trousers after long-time storage are used.

Disclosure of Invention

In order to solve the problem of poor stability of antibacterial performance of the composite core in the related art, the application provides an integrated menstrual trousers composite core and a preparation method thereof.

The application provides an integral type menstrual period trousers complex core adopts following technical scheme:

the integrated menstrual trousers composite core comprises an antibacterial surface layer, an antibacterial diversion layer, a first adhesive layer, an antibacterial absorption layer, a second adhesive layer and a breathable bottom layer which are sequentially arranged, wherein the antibacterial surface layer comprises 40-50 parts by weight of fluff pulp and 10-15 parts by weight of antibacterial fibers, the antibacterial diversion layer comprises 60-70 parts by weight of fluff pulp and 10-15 parts by weight of antibacterial fibers, and the antibacterial absorption layer comprises 65-85 parts by weight of super absorbent resin slurry and 20-30 parts by weight of antibacterial fibers; the antibacterial fiber is obtained by a spinning solution through a spinning technology, wherein the spinning solution comprises the following raw materials in parts by weight:

carboxymethyl cellulose: 6.5-8.8 parts

Polyetheramine: 4.8-5.4 parts

A diisocyanate: 20-30 parts

3-glycidoxypropyl trimethoxysilane: 2-3 parts

Composite catalyst: 1-3 parts

Nano silver powder: 0.05 to 0.13 part

A diluent: 10-20 parts

Water: 80-90 parts

The composite catalyst comprises an amine catalyst and an organic metal catalyst, wherein the weight ratio of the amine catalyst to the organic metal catalyst is 1: (3-4).

By adopting the technical scheme, the carboxymethyl cellulose simultaneously contains active hydroxyl groups and carboxyl groups, the polyether amine contains active amino groups, and under the action of the composite catalyst, the carboxymethyl cellulose, the polyether amine and isocyanate react to form a crosslinked network, so that the nano silver powder can be stably wrapped.

And secondly, the product generated by the reaction of diisocyanate and carboxymethyl cellulose and polyetheramine can further stably adsorb the nano silver powder, and is also beneficial to improving the stability of the nano silver powder. And the diisocyanate reacts with water to generate carbon dioxide bubbles, and the generation of the carbon dioxide bubbles can improve the dispersion performance of the nano silver powder in the spinning solution.

In addition, epoxy groups in the 3-glycidoxypropyl trimethoxy silane can be bonded with hydroxyl groups in carboxymethyl cellulose, and silicon hydroxyl groups generated after the hydrolysis of the 3-glycidoxypropyl trimethoxy silane can be bonded with hydroxyl groups on the surface of the nano silver powder, so that the adhesion stability of the nano silver powder is further improved, the silver powder is not easy to fall off from an organic matrix, and the antibacterial fiber with long-acting bactericidal property can be obtained.

In conclusion, the antibacterial fiber is applied to the menstrual pants composite core body, so that the antibacterial effect of the composite core body can be effectively improved, and the problem that the menstrual pants after long-term storage are easy to generate foreign odor or cause skin allergy after long-term use can be prevented.

Optionally, the spinning solution further comprises 3-4 parts by weight of a dispersion promoter, wherein the dispersion promoter comprises a fluorocarbon surfactant and N-fatty amido carboxylate, and the weight ratio of the fluorocarbon surfactant to the N-fatty amido carboxylate is 7: (1-3).

By adopting the technical scheme, compared with other surfactants, the fluorocarbon surfactant and the N-fatty amido carboxylate have high temperature resistance and chemical stability, and are more suitable for the spinning solution of the application. In addition, the fluorocarbon surfactant can refine carbon dioxide bubbles, the special structure of the N-fatty amido carboxylate is beneficial to improving the stability of the bubbles, so that when the ratio of the fluorocarbon surfactant to the N-fatty amido carboxylate is in the range, the fluorocarbon surfactant and the N-fatty amido carboxylate can synergistically and effectively refine and stabilize the carbon dioxide bubbles, and under the auxiliary effect of the tiny bubbles, the nanometer silver powder is uniformly dispersed into the spinning solution, so that the antibacterial fiber with uniformly distributed nanometer silver powder is beneficial to obtaining, and the antibacterial fiber has a promoting effect on realizing uniform antibacterial surface layers, antibacterial diversion layers and antibacterial absorption layers. In addition, the air permeability of the antibacterial fiber can be improved, probably because the antibacterial fiber obtained by electrostatic spinning also has tiny air holes due to the existence of tiny air bubbles in the spinning solution, and the air permeability of the antibacterial fiber can be improved.

Optionally, the weight ratio of the fluorocarbon surfactant to the N-fatty amido carboxylate is 3.5:1.

By adopting the technical scheme, when the weight ratio of the fluorocarbon surfactant to the N-fatty amido carboxylate is 3.5:1, the antibacterial fiber with optimal air permeability and long-acting antibacterial performance can be obtained.

Optionally, the fluorocarbon surfactant is a nonionic fluorocarbon surfactant.

By adopting the technical scheme, the nonionic fluorocarbon surfactant has better dispersing effect in the system, and is beneficial to promoting the dispersion of the nano silver powder.

Optionally, the N-fatty amido carboxylate is selected from one or more of sodium lauroyl sarcosinate, potassium cocoyl glycinate and sodium cocoyl glycinate.

By adopting the technical scheme, the sodium lauroyl sarcosinate, the potassium cocoyl glycinate and the sodium cocoyl glycinate can effectively improve the stability of bubbles, promote the uniform dispersion of the nano silver powder and improve the air permeability of the antibacterial fiber.

Optionally, the super absorbent resin slurry comprises the following raw materials in parts by weight:

glycidyl methacrylate: 55-75 parts

Acrylate monomer: 30-40 parts

Neutralizing agent: 0.1-0.2 part

Tertiary amine catalyst: 2-4 parts

And (3) an initiator: 1.0 to 1.8 parts

Crosslinking agent: 1-3 parts

Dispersing agent: 50-60 parts.

By adopting the technical scheme, the antibacterial stability of the antibacterial absorption layer is improved, and the reason is probably that epoxy groups in glycidyl methacrylate can react with groups on the antibacterial fibers, so that the combination stability between the super absorbent resin and the antibacterial fibers is improved, and the antibacterial fibers are not easy to fall off from the super absorbent resin, so that the antibacterial stability of the antibacterial absorption layer is improved.

Optionally, the acrylate monomer comprises ethyl acrylate and hydroxyethyl acrylate, and the weight ratio of the ethyl acrylate to the hydroxyethyl acrylate is 3: (1-2).

By adopting the technical scheme, the water locking performance of the antibacterial absorption layer is further improved, reverse osmosis is further reduced, and the reasons are probably that the crosslinking degree of the super absorbent resin is improved, the adsorption capacity is increased, and the water locking performance of the super absorbent resin is improved.

Optionally, the cross-linking agent is any one of pentaerythritol triallyl ether and trimethylolpropane triacrylate, and the initiator is any one or a combination of more than one of potassium persulfate, sodium persulfate and azodiisobutyronitrile.

In a second aspect, the preparation method of the integrated menstrual pants composite core provided by the application adopts the following technical scheme:

a preparation method of an integrated menstrual pants composite core body comprises the following steps:

preparing antibacterial fibers:

adding carboxymethyl cellulose, polyetheramine, diisocyanate, 3-glycidol ether oxygen propyl trimethoxy silane, a composite catalyst and nano silver powder into a solvent, heating to 50-60 ℃, and stirring for reacting for 2-4 hours to obtain a spinning solution;

spinning the spinning solution, and then collecting, drying and crushing the spinning solution to obtain antibacterial fibers; wherein the rotating speed of the rotating cylinder is 4-5r/min, the collecting distance is 20-30cm, the applied voltage is 40-60KV, and the drying temperature is 55-65 ℃;

preparing an antibacterial surface layer:

mixing the fluff pulp and the antibacterial fibers according to the proportion into a net, and shaping by hot air to obtain an antibacterial surface layer;

preparing an antibacterial diversion layer:

mixing fluff pulp and antibacterial fibers according to a proportion into a net, and shaping by hot air to obtain an antibacterial diversion layer;

preparing a composite core:

compounding the antibacterial diversion layer and the antibacterial surface layer to obtain a first composite material;

mixing the super absorbent resin slurry with the antibacterial fibers according to the proportion, heating to 100-120 ℃ in an inert gas environment for a prepolymerization reaction for 2-6h, then distilling under reduced pressure to remove the dispersing agent, and crushing to obtain antibacterial polymer particles;

Applying a first adhesive layer on one side of the first composite material, which is far away from the antibacterial surface layer, and uniformly applying antibacterial polymer particles on one side of the first adhesive layer, which is far away from the antibacterial diversion layer, so as to form an antibacterial absorption layer, thereby obtaining a second composite material;

applying a second adhesive layer on one side of the breathable bottom layer facing the antibacterial absorption layer to obtain a third composite material;

and compounding the antibacterial absorption layer in the second composite material with the second adhesive layer in the third composite material to obtain a composite core body.

By adopting the technical scheme, the antibacterial surface layer has the advantages of rapid liquid permeation and antibacterial performance, the antibacterial diversion layer can rapidly diversion liquid into the antibacterial absorption layer, and meanwhile, the antibacterial diversion layer has an antibacterial effect, can inhibit bacteria in the antibacterial diversion layer from breeding, and is beneficial to preventing peculiar smell; the antibacterial absorption layer is a place where a large amount of liquid is absorbed, bacteria are most likely to grow to generate abnormal odor, antibacterial fibers are added into the antibacterial absorption layer, so that the antibacterial effect can be achieved, the bacteria are effectively inhibited from propagating, and the deodorizing effect can be achieved. In addition, the antibacterial absorption layer is arranged between the first adhesive layer and the second adhesive layer, so that the adhesion stability of the antibacterial absorption layer is improved, and the problem of lump formation or fault formation of the antibacterial absorption layer can be prevented.

Optionally, in the step of preparing the antibacterial fiber, 3-4 parts by weight of a dispersion promoter is further added into the spinning solution, wherein the dispersion promoter comprises a fluorocarbon surfactant and N-fatty amido carboxylate, and the weight ratio of the fluorocarbon surfactant to the N-fatty amido carboxylate is 7: (1-3).

In summary, the technical scheme of the application at least comprises the following beneficial effects:

(1) The carboxymethyl cellulose contains active hydroxyl groups and carboxyl groups, the polyether amine contains active amino groups, and under the action of a composite catalyst, the carboxymethyl cellulose, the polyether amine and isocyanate react to form a crosslinked network, so that the nano silver powder can be stably wrapped; secondly, the product generated by the reaction of diisocyanate and carboxymethyl cellulose and polyetheramine can further stably adsorb the nano silver powder, and is also beneficial to improving the stability of the nano silver powder; in addition, epoxy groups in the 3-glycidoxypropyl trimethoxy silane can be bonded with hydroxyl groups in carboxymethyl cellulose, and silicon hydroxyl groups generated after the hydrolysis of the 3-glycidoxypropyl trimethoxy silane can be bonded with hydroxyl groups on the surface of the nano silver powder, so that the adhesion stability of the nano silver powder is further improved, the silver powder is not easy to fall off from an organic matrix, and the antibacterial fiber with long-acting bactericidal property can be obtained. The antibacterial fiber is applied to the composite core body of the menstrual pants, so that the antibacterial effect of the composite core body can be effectively improved, and the problem that the menstrual pants after long-term storage are easy to generate abnormal odor or cause skin allergy after long-term use can be prevented.

(2) The fluorocarbon surfactant and the N-fatty amido carboxylate are added into the spinning solution, and the fluorocarbon surfactant and the N-fatty amido carboxylate can be cooperated to effectively refine and stabilize bubbles, so that the nanometer silver powder is uniformly dispersed into the spinning solution under the auxiliary effect of the tiny bubbles, the uniform distribution of the nanometer silver powder is facilitated, and the uniform antibacterial effect of the antibacterial surface layer, the antibacterial diversion layer and the antibacterial absorption layer is promoted. In addition, the air permeability of the antibacterial fiber can be improved, probably because the antibacterial fiber obtained by electrostatic spinning also has tiny air holes due to the existence of tiny air bubbles in the spinning solution, and the air permeability of the antibacterial fiber can be improved.

(3) The preparation of the super absorbent resin slurry by adopting the glycidyl methacrylate and the acrylate monomer and the like can improve the antibacterial stability of the antibacterial absorption layer, probably because the epoxy group in the glycidyl methacrylate can react with the group on the antibacterial fiber, the combination stability between the super absorbent resin and the antibacterial fiber is improved, and the antibacterial fiber is not easy to fall off from the super absorbent resin, thereby improving the antibacterial stability of the antibacterial absorption layer.

Drawings

Fig. 1 is a schematic structural view of an integrated menstrual pant composite core according to an embodiment of the present application.

Reference numerals illustrate:

1. an antimicrobial top layer; 2. an antibacterial diversion layer; 3. a first adhesive layer; 4. an antimicrobial absorbent layer; 5. a second adhesive layer; 6. and a breathable bottom layer.

Description of the embodiments

The application provides an integrated menstrual pants composite core body, which comprises an antibacterial surface layer 1, an antibacterial diversion layer 2, a first adhesive layer 3, an antibacterial absorption layer 4, a second adhesive layer 5 and a breathable bottom layer 6 which are sequentially arranged from top to bottom, wherein the antibacterial surface layer 1 comprises 40-50 parts by weight of fluff pulp and 10-15 parts by weight of antibacterial fibers, the antibacterial diversion layer 2 comprises 60-70 parts by weight of fluff pulp and 10-15 parts by weight of antibacterial fibers, and the antibacterial absorption layer 4 comprises 65-85 parts by weight of super absorbent resin slurry and 20-30 parts by weight of antibacterial fibers; the ventilation bottom layer 6 is dust-free paper.

Wherein, in order to improve the antibacterial stability of the composite core body, the antibacterial fiber is obtained by spinning solution through a spinning technology. Specifically, the spinning solution comprises the following raw materials in parts by weight:

carboxymethyl cellulose: 6.5-8.8 parts

Polyetheramine: 4.8-5.4 parts

A diisocyanate: 20-30 parts

3-glycidoxypropyl trimethoxysilane: 2-3 parts

Composite catalyst: 1-3 parts

Nano silver powder: 0.05 to 0.13 part

A diluent: 10-20 parts

Water: 80-90 parts.

Wherein the carboxymethyl cellulose may be any value between 6.5 and 8.8 parts by weight, for example 6.6 parts by weight, 6.8 parts by weight, 7.0 parts by weight, 7.2 parts by weight, 7.4 parts by weight, 7.6 parts by weight, 7.8 parts by weight, 8.0 parts by weight, 8.2 parts by weight, 8.4 parts by weight, 8.6 parts by weight. In some preferred embodiments, the carboxymethyl cellulose may be any value between 7.0 and 8.0 parts by weight, for example 7.25 parts by weight, 7.45 parts by weight, 7.65 parts by weight, 7.85 parts by weight.

The polyetheramine may be any value between 4.8 and 5.4 parts by weight, for example 4.9 parts by weight, 5.0 parts by weight, 5.1 parts by weight, 5.2 parts by weight, 5.3 parts by weight. In some preferred embodiments, the polyetheramine content may be anywhere between 5.0 and 5.2 parts by weight.

The diisocyanate is selected from isophorone diisocyanate and hexamethylene diisocyanate. The diisocyanate may be any value between 20 and 30 parts by weight, for example 21 parts by weight, 23 parts by weight, 25 parts by weight, 27 parts by weight, 29 parts by weight. In some preferred embodiments, the diisocyanate may be any value between 24 and 26 parts by weight.

The 3-glycidoxypropyl trimethoxysilane can be anywhere between 2-3 parts by weight and in some preferred embodiments the 3-glycidoxypropyl trimethoxysilane can be anywhere between 2.4-2.6 parts by weight.

The composite catalyst comprises an amine catalyst and an organic metal catalyst, wherein the weight ratio of the amine catalyst to the organic metal catalyst is 1: (3-4). Among them, the amine catalyst is preferably a tertiary amine catalyst, and the organometallic catalyst is preferably an organotin catalyst.

The diluent is selected from acetone or a mixed solution of acetone and polyvinylpyrrolidone and tetrahydrofuran.

The application also discloses a preparation method of the antibacterial fiber, which comprises the following steps:

s1, adding carboxymethyl cellulose, polyether amine, diisocyanate, 3-glycidol ether oxypropyl trimethoxy silane, a composite catalyst and nano silver powder into a solvent, heating to 50-60 ℃, and stirring for reacting for 2-4 hours to obtain a spinning solution;

s2, spinning the spinning solution, and then collecting, drying and crushing the spinning solution to obtain antibacterial fibers; wherein the rotating speed of the rotating cylinder is 4-5r/min, the collecting distance is 20-30cm, the applied voltage is 40-60KV, and the drying temperature is 55-65 ℃.

In order to improve the antibacterial uniformity of the antibacterial fiber, 3-4 parts by weight of a dispersion promoter can be added into the spinning solution in the step S1, wherein the dispersion promoter comprises fluorocarbon surfactant and N-fatty amido carboxylate, and the weight ratio of the fluorocarbon surfactant to the N-fatty amido carboxylate is 7: (1-3), preferably the weight ratio of fluorocarbon surfactant to N-fatty amido carboxylate is 3.5:1.

The fluorocarbon surfactant is preferably nonionic fluorocarbon surfactant, and the N-fatty acyl amino carboxylate is selected from one or more of sodium lauroyl sarcosinate, potassium cocoyl glycinate and sodium cocoyl glycinate.

For the antibacterial absorbing layer 4, in order to improve the binding fastness of the super absorbent resin and the antibacterial fiber in the antibacterial absorbing layer 4, in this embodiment, the super absorbent resin slurry includes the following raw materials in parts by weight:

glycidyl methacrylate: 55-75 parts

Acrylate monomer: 30-40 parts

Neutralizing agent: 0.1-0.2 part

Tertiary amine catalyst: 2-4 parts

And (3) an initiator: 1.0 to 1.8 parts

Crosslinking agent: 1-3 parts

Dispersing agent: 50-60 parts.

The glycidyl methacrylate content may be any value between 55 and 75 parts by weight, and in some preferred embodiments, the glycidyl methacrylate may be any value between 60 and 68 parts by weight.

The acrylic ester monomer is selected from any one or a combination of a plurality of methyl acrylate, ethyl acrylate, butyl acrylate, methyl acrylate and hydroxyethyl acrylate; preferably, the composition of ethyl acrylate and hydroxyethyl acrylate is prepared from the following components in percentage by weight: (1-2). Wherein the acrylate monomer may be any value between 30 and 40 parts by weight. In some preferred embodiments, the acrylate monomer may be any value between 33 and 36 parts by weight.

The neutralizer is one or two of sodium hydroxide and potassium hydroxide. The neutralizing agent may be any value between 0.1 and 0.2 parts by weight.

The initiator is selected from one or more of potassium persulfate, sodium persulfate and azodiisobutyronitrile.

The cross-linking agent is any one of pentaerythritol triallyl ether and trimethylolpropane triacrylate.

The dispersing agent is any one of ethanol and N-methyl pyrrolidone.

In addition, the application also discloses a preparation method of the integrated menstrual pants composite core, which comprises the following steps:

mixing fluff pulp and antibacterial fibers according to a proportion into a net, and shaping by hot air to obtain an antibacterial surface layer 1;

Mixing fluff pulp and antibacterial fibers according to a proportion into a net, and shaping by hot air to obtain an antibacterial diversion layer 2;

compounding the antibacterial diversion layer 2 and the antibacterial surface layer 1 to obtain a first composite material;

applying a first adhesive layer 3 on one side of the first composite material, which is far away from the antibacterial surface layer 1, and uniformly applying antibacterial polymer particles on one side of the first adhesive layer 3, which is far away from the antibacterial diversion layer 2, so as to form an antibacterial absorption layer 4, thereby obtaining a second composite material;

applying a second adhesive layer 5 on one side of the breathable bottom layer 6 facing the antibacterial absorbing layer 4 to obtain a third composite material;

and compounding the antibacterial absorption layer 4 in the second composite material with the second adhesive layer 5 in the third composite material to obtain the composite core.

The present application will be described in further detail with reference to specific experiments, wherein the same raw materials used in each experiment are the same type of products of the same manufacturer unless otherwise specified.

Antibacterial fiber preparation example

Preparation example 1

An antibacterial fiber comprising 6.5kg of carboxymethyl cellulose HA001, 4.8kg of polyetheramine 1000, 20kg of isophorone diisocyanate, 2kg of 3-glycidoxypropyl trimethoxysilane, 0.25kg of tertiary amine catalyst Dabco R-8020, 0.75kg of organotin catalyst T-9, 0.05kg of nano silver powder, 10kg of acetone, and 90kg of water.

The preparation method of the antibacterial fiber comprises the following steps:

adding carboxymethyl cellulose HA001, polyether amine 1000, isophorone diisocyanate, 3-glycidol ether oxygen propyl trimethoxy silane, a tertiary amine catalyst Dabco R-8020, an organotin catalyst T-9, nano silver powder and acetone into water according to a proportion, heating to 55 ℃, stirring and reacting for 3 hours to obtain a spinning solution;

spinning the spinning solution, and then collecting, drying and crushing the spinning solution to obtain antibacterial fibers; wherein the rotating speed of the rotating cylinder is 4.5r/min, the collecting distance is 25cm, the applied voltage is 50KV, and the drying temperature is 60 ℃.

Preparation example 2

An antimicrobial fiber comprising 7.65kg of carboxymethyl cellulose HA001, 5.1kg of polyetheramine 1000, 25kg of isophorone diisocyanate, 2.5kg of 3-glycidoxypropyl trimethoxysilane, 0.425kg of tertiary amine catalyst Dabco R-8020, 1.575kg of organotin catalyst T-9, 0.09kg of nano silver powder, 15kg of acetone, and 85kg of water.

Preparation example 3

An antibacterial fiber comprising 8.8kg of carboxymethyl cellulose HA001, 5.4kg of polyetheramine 1000, 30kg of isophorone diisocyanate, 3kg of 3-glycidoxypropyl trimethoxysilane, 0.6kg of tertiary amine catalyst Dabco R-8020, 2.4kg of organotin catalyst T-9, 0.13kg of nano silver powder, 20kg of acetone, and 80kg of water.

Preparation example 4

An antibacterial fiber comprising 7.65kg of carboxymethyl cellulose HA001, 5.1kg of polyetheramine 1000, 25kg of isophorone diisocyanate, 2.5kg of 3-glycidoxypropyl trimethoxysilane, 0.425kg of tertiary amine catalyst Dabco R-8020, 1.575kg of organotin catalyst T-9, 0.09kg of nano silver powder, 3.06kg of nonionic fluorocarbon surfactant FS-30, 0.44kg of potassium cocoyl glycinate, 15kg of acetone, and 85kg of water.

adding carboxymethyl cellulose HA001, polyetheramine 1000, isophorone diisocyanate, 3-glycidol ether oxygen propyl trimethoxy silane, a tertiary amine catalyst Dabco R-8020, an organotin catalyst T-9, nanometer silver powder, a nonionic fluorocarbon surfactant FS-30, potassium cocoyl glycinate and acetone into water according to a proportion, heating to 55 ℃, stirring and reacting for 3 hours to obtain a spinning solution;

Preparation example 5

An antibacterial fiber comprising 7.65kg of carboxymethyl cellulose HA001, 5.1kg of polyetheramine 1000, 25kg of isophorone diisocyanate, 2.5kg of 3-glycidoxypropyl trimethoxysilane, 0.425kg of tertiary amine catalyst Dabco R-8020, 1.575kg of organotin catalyst T-9, 0.09kg of nano silver powder, 2.72kg of nonionic fluorocarbon surfactant FS-30, 0.78kg of potassium cocoyl glycinate, 15kg of acetone and 85kg of water.

Preparation example 6

An antibacterial fiber comprising 7.65kg of carboxymethyl cellulose HA001, 5.1kg of polyetheramine 1000, 25kg of isophorone diisocyanate, 2.5kg of 3-glycidoxypropyl trimethoxysilane, 0.425kg of tertiary amine catalyst Dabco R-8020, 1.575kg of organotin catalyst T-9, 0.09kg of nano silver powder, 2.45kg of nonionic fluorocarbon surfactant FS-30, 1.05kg of potassium cocoyl glycinate, 15kg of acetone and 85kg of water.

Comparative preparation of antibacterial fibers

Comparative preparation example 1

An antimicrobial fiber comprising 7.65kg of carboxymethyl cellulose HA001, 5.1kg of bis allyl terminated polyether DX-600, 25kg of isophorone diisocyanate, 2.5kg of 3-glycidoxypropyl trimethoxysilane, 0.425kg of tertiary amine catalyst Dabco R-8020, 1.575kg of organotin catalyst T-9, 0.09kg of nano silver powder, 15kg of acetone, and 85kg of water.

adding carboxymethyl cellulose HA001, diallyl capped polyether DX-600, isophorone diisocyanate, 3-glycidol ether oxypropyl trimethoxy silane, a tertiary amine catalyst Dabco R-8020, an organotin catalyst T-9, nano silver powder and acetone into water according to a proportion, heating to 55 ℃, stirring and reacting for 3 hours to obtain a spinning solution;

Comparative preparation example 2

An antimicrobial fiber comprising 7.65kg of carboxymethyl cellulose HA001, 5.1kg of polyetheramine 1000, 25kg of bis allyl terminated polyether DX-600, 2.5kg of 3-glycidoxypropyl trimethoxysilane, 0.425kg of tertiary amine catalyst Dabco R-8020, 1.575kg of organotin catalyst T-9, 0.09kg of nano silver powder, 15kg of acetone, and 85kg of water.

adding carboxymethyl cellulose HA001, polyetheramine 1000, diallyl capped polyether DX-600, 3-glycidol ether oxypropyl trimethoxy silane, a tertiary amine catalyst Dabco R-8020, an organotin catalyst T-9, nano silver powder and acetone into water according to a proportion, heating to 55 ℃, and stirring for reacting for 3 hours to obtain a spinning solution;

Comparative preparation example 3

An antibacterial fiber comprising 7.65kg of carboxymethyl cellulose HA001, 5.1kg of polyetheramine 1000, 25kg of isophorone diisocyanate, 2.5kg of aminosilane coupling agent KH550, 0.425kg of tertiary amine catalyst Dabco R-8020, 1.575kg of organotin catalyst T-9, 0.09kg of nano silver powder, 15kg of acetone and 85kg of water.

adding carboxymethyl cellulose HA001, polyetheramine 1000, isophorone diisocyanate, an aminosilane coupling agent KH550, a tertiary amine catalyst Dabco R-8020, an organotin catalyst T-9, nano silver powder and acetone into water according to a proportion, heating to 55 ℃, stirring and reacting for 3 hours to obtain a spinning solution;

Comparative preparation example 4

An antibacterial fiber comprising 3.2kg of carboxymethyl cellulose HA001, 7.3kg of polyetheramine 1000, 14kg of isophorone diisocyanate, 1kg of 3-glycidoxypropyl trimethoxysilane, 0.25kg of tertiary amine catalyst Dabco R-8020, 0.75kg of organotin catalyst T-9, 0.05kg of nano silver powder, 10kg of acetone, and 90kg of water.

Comparative preparation example 5

An antibacterial fiber comprising 9.5kg of carboxymethyl cellulose HA001, 2.8kg of polyetheramine 1000, 40kg of isophorone diisocyanate, 3kg of 3-glycidoxypropyl trimethoxysilane, 0.6kg of tertiary amine catalyst Dabco R-8020, 2.4kg of organotin catalyst T-9, 0.13kg of nano silver powder, 20kg of acetone, and 80kg of water.

Preparation of super absorbent resin slurry

Preparation example A

A super absorbent resin slurry comprises 65kg of methacrylate, 35kg of ethyl acrylate, 0.15kg of sodium hydroxide, 3kg of tertiary amine catalyst Dabco R-8020, 0.4kg of azobisisobutyronitrile, 1kg of potassium persulfate, 2kg of pentaerythritol triallyl ether and 55kg of ethanol solution with the mass fraction of 50 percent.

Wherein the Gao Xishui resin slurry is prepared by uniformly mixing methyl acrylate, ethyl acrylate, sodium hydroxide, a tertiary amine catalyst Dabco R-8020, azodiisobutyronitrile, potassium persulfate, pentaerythritol triallyl ether and an ethanol solution with the mass fraction of 50% according to a proportion.

Preparation example B

A super absorbent resin slurry comprises 55kg of glycidyl methacrylate, 30kg of ethyl acrylate, 0.1kg of sodium hydroxide, 2kg of tertiary amine catalyst Dabco R-8020, 0.4kg of azodiisobutyronitrile, 0.6kg of potassium persulfate, 1kg of pentaerythritol triallyl ether and 50kg of ethanol solution with the mass fraction of 50 percent.

Wherein the Gao Xishui resin slurry is prepared by uniformly mixing glycidyl methacrylate, ethyl acrylate, sodium hydroxide, a tertiary amine catalyst Dabco R-8020, azodiisobutyronitrile, potassium persulfate, pentaerythritol triallyl ether and an ethanol solution with the mass fraction of 50% according to a proportion.

Preparation example C

A super absorbent resin slurry comprises 65kg of glycidyl methacrylate, 35kg of ethyl acrylate, 0.15kg of sodium hydroxide, 3kg of tertiary amine catalyst Dabco R-8020, 0.4kg of azodiisobutyronitrile, 1kg of potassium persulfate, 2kg of pentaerythritol triallyl ether and 55kg of ethanol solution with the mass fraction of 50 percent.

Preparation example D

A super absorbent resin slurry comprising 75kg of glycidyl methacrylate, 40kg of ethyl acrylate, 0.2kg of sodium hydroxide, 4kg of tertiary amine catalyst Dabco R-8020, 0.4kg of azobisisobutyronitrile, 1.4kg of potassium persulfate, 3kg of pentaerythritol triallyl ether and 60kg of ethanol solution with a mass fraction of 50%.

Preparation example E

A super absorbent resin slurry comprises 65kg of glycidyl methacrylate, 26.25kg of ethyl acrylate, 8.75kg of hydroxyethyl acrylate, 0.15kg of sodium hydroxide, 3kg of a tertiary amine catalyst Dabco R-8020, 0.4kg of azobisisobutyronitrile, 1kg of potassium persulfate, 2kg of pentaerythritol triallyl ether and 55kg of an ethanol solution with a mass fraction of 50% ethanol.

Wherein the Gao Xishui resin slurry is prepared by uniformly mixing glycidyl methacrylate, ethyl acrylate, hydroxyethyl acrylate, sodium hydroxide, a tertiary amine catalyst Dabco R-8020, azodiisobutyronitrile, potassium persulfate, pentaerythritol triallyl ether and an ethanol solution with the mass fraction of 50% according to a proportion.

Preparation example F

A super absorbent resin slurry comprises 65kg of glycidyl methacrylate, 21kg of ethyl acrylate, 14kg of hydroxyethyl acrylate, 0.15kg of sodium hydroxide, 3kg of a tertiary amine catalyst Dabco R-8020, 0.4kg of azobisisobutyronitrile, 1kg of potassium persulfate, 2kg of pentaerythritol triallyl ether and 55kg of an ethanol solution with a mass fraction of 50%.

Examples

Example 1

The utility model provides an integral type menstrual period trousers complex core, includes from top to bottom antibiotic surface course 1, antibiotic water conservancy diversion layer 2, first adhesive layer 3, antibiotic absorbed layer 4, second adhesive layer 5 and the ventilative bottom layer 6 of dust free paper that sets gradually.

The preparation method of the integrated menstrual pants composite core body comprises the following steps:

mixing 40kg of fluff pulp and 10kg of the antibacterial fibers prepared in preparation example 1 into a net, and shaping by hot air to obtain an antibacterial surface layer 1 with the thickness of 0.5 mm;

mixing 60kg of fluff pulp and 10kg of the antibacterial fibers prepared in preparation example 1 into a net, and shaping by hot air to obtain an antibacterial diversion layer 2 with the thickness of 0.5 mm;

mixing 65kg of the super absorbent resin slurry prepared in the preparation example A with 20kg of the antibacterial fiber prepared in the preparation example 1, heating to 110 ℃ in a nitrogen environment for a prepolymerization reaction for 4 hours, then distilling under reduced pressure to remove ethanol, and crushing to obtain antibacterial polymer particles;

Applying a first adhesive layer 3 with the thickness of 0.3mm on one side of the first composite material, which is away from the antibacterial surface layer 1, and then uniformly applying antibacterial polymer particles on one side of the first adhesive layer 3, which is away from the antibacterial diversion layer 2, to form an antibacterial absorption layer 4 with the thickness of 2mm, so as to obtain a second composite material;

applying a second adhesive layer 5 with the thickness of 0.3mm to the side of the dust-free paper breathable bottom layer 6 with the thickness of 0.5mm facing the antibacterial absorbing layer 4 to obtain a third composite material;

Example 2

mixing 45kg of fluff pulp and 12.5kg of the antibacterial fibers prepared in preparation example 2 into a net, and shaping by hot air to obtain an antibacterial surface layer 1 with the thickness of 0.5 mm;

after 65kg of fluff pulp and 12.5kg of the antibacterial fiber prepared in preparation example 2 are mixed into a net, shaping by hot air to obtain an antibacterial diversion layer 2 with the thickness of 0.5 mm;

mixing 75kg of the super absorbent resin slurry prepared in the preparation example A with 25kg of the antibacterial fiber prepared in the preparation example 2, heating to 110 ℃ in a nitrogen environment for a prepolymerization reaction for 4 hours, then distilling under reduced pressure to remove ethanol, and crushing to obtain antibacterial polymer particles;

Example 3

50kg of fluff pulp and 15kg of the antibacterial fibers prepared in preparation example 3 are mixed into a net, and then hot air shaping is carried out to obtain an antibacterial surface layer 1 with the thickness of 0.5 mm;

after 70kg of fluff pulp and 15kg of the antibacterial fiber prepared in preparation example 3 are mixed into a net, shaping by hot air to obtain an antibacterial diversion layer 2 with the thickness of 0.5 mm;

mixing 85kg of the super absorbent resin slurry prepared in the preparation example A and 30kg of the antibacterial fiber prepared in the preparation example 3, heating to 110 ℃ in a nitrogen environment for a prepolymerization reaction for 4 hours, then distilling under reduced pressure to remove ethanol, and crushing to obtain antibacterial polymer particles;

Example 4

mixing 45kg of fluff pulp and 12.5kg of the antibacterial fibers prepared in preparation example 4 into a net, and shaping by hot air to obtain an antibacterial surface layer 1 with the thickness of 0.5 mm;

after 65kg of fluff pulp and 12.5kg of the antibacterial fiber prepared in preparation example 4 were mixed into a net, hot air setting was performed to obtain an antibacterial diversion layer 2 with a thickness of 0.5 mm;

mixing 75kg of the super absorbent resin slurry prepared in the preparation example A with 25kg of the antibacterial fiber prepared in the preparation example 4, heating to 110 ℃ in a nitrogen environment for a prepolymerization reaction for 4 hours, then distilling under reduced pressure to remove ethanol, and crushing to obtain antibacterial polymer particles;

Example 5

mixing 45kg of fluff pulp and 12.5kg of the antibacterial fibers prepared in preparation example 5 into a net, and shaping by hot air to obtain an antibacterial surface layer 1 with the thickness of 0.5 mm;

after 65kg of fluff pulp and 12.5kg of the antibacterial fiber prepared in preparation example 5 are mixed into a net, shaping by hot air to obtain an antibacterial diversion layer 2 with the thickness of 0.5 mm;

mixing 75kg of the super absorbent resin slurry prepared in the preparation example A with 25kg of the antibacterial fiber prepared in the preparation example 5, heating to 110 ℃ in a nitrogen environment for a prepolymerization reaction for 4 hours, then distilling under reduced pressure to remove ethanol, and crushing to obtain antibacterial polymer particles;

Example 6

mixing 45kg of fluff pulp and 12.5kg of the antibacterial fibers prepared in preparation example 6 into a net, and shaping by hot air to obtain an antibacterial surface layer 1 with the thickness of 0.5 mm;

after 65kg of fluff pulp and 12.5kg of the antibacterial fiber prepared in preparation example 6 are mixed into a net, shaping by hot air to obtain an antibacterial diversion layer 2 with the thickness of 0.5 mm;

mixing 75kg of the super absorbent resin slurry prepared in the preparation example A with 25kg of the antibacterial fiber prepared in the preparation example 6, heating to 110 ℃ in a nitrogen environment for a prepolymerization reaction for 4 hours, then distilling under reduced pressure to remove ethanol, and crushing to obtain antibacterial polymer particles;

Example 7

mixing 75kg of the super absorbent resin slurry prepared in the preparation example B with 25kg of the antibacterial fiber prepared in the preparation example 5, heating to 110 ℃ in a nitrogen environment for a prepolymerization reaction for 4 hours, then distilling under reduced pressure to remove ethanol, and crushing to obtain antibacterial polymer particles;

Example 8

mixing 75kg of the super absorbent resin slurry prepared in the preparation example C with 25kg of the antibacterial fiber prepared in the preparation example 5, heating to 110 ℃ in a nitrogen environment for a prepolymerization reaction for 4 hours, then distilling under reduced pressure to remove ethanol, and crushing to obtain antibacterial polymer particles;

Example 9

mixing 75kg of the super absorbent resin slurry prepared in the preparation example D with 25kg of the antibacterial fiber prepared in the preparation example 5, heating to 110 ℃ in a nitrogen environment for a prepolymerization reaction for 4 hours, then distilling under reduced pressure to remove ethanol, and crushing to obtain antibacterial polymer particles;

Example 10

mixing 75kg of the super absorbent resin slurry prepared in the preparation example E with 25kg of the antibacterial fiber prepared in the preparation example 5, heating to 110 ℃ in a nitrogen environment for a prepolymerization reaction for 4 hours, then distilling under reduced pressure to remove ethanol, and crushing to obtain antibacterial polymer particles;

Example 11

mixing 75kg of the super absorbent resin slurry prepared in the preparation example F with 25kg of the antibacterial fiber prepared in the preparation example 5, heating to 110 ℃ in a nitrogen environment for a prepolymerization reaction for 4 hours, then distilling under reduced pressure to remove ethanol, and crushing to obtain antibacterial polymer particles;

Comparative example

Comparative example 1

An integrated menstrual pants composite core, which differs from example 2 in that:

antibacterial fibers in the antibacterial surface layer 1, the antibacterial diversion layer 2 and the antibacterial polymer particles are all antibacterial fibers prepared in comparative preparation example 1.

Comparative example 2

antibacterial fibers in the antibacterial surface layer 1, the antibacterial diversion layer 2 and the antibacterial polymer particles are all antibacterial fibers prepared in comparative preparation example 2.

Comparative example 3

antibacterial fibers in the antibacterial surface layer 1, the antibacterial diversion layer 2 and the antibacterial polymer particles are all antibacterial fibers prepared in comparative preparation example 3.

Comparative example 4

antibacterial fibers in the antibacterial surface layer 1, the antibacterial diversion layer 2 and the antibacterial polymer particles are all antibacterial fibers prepared in comparative preparation example 4.

Comparative example 5

Antibacterial fibers in the antibacterial surface layer 1, the antibacterial diversion layer 2 and the antibacterial polymer particles are all antibacterial fibers prepared in comparative preparation example 5.

Performance test

(1) Antibacterial test of antibacterial facing layer 1: 100mL of physiological saline containing 10g of hemoglobin and 1g of epithelial cells was poured into the antibacterial surface layers 1 prepared in examples 1 to 6 and comparative examples 1 to 5, and after soaking for 30 minutes, the samples were placed in a closed environment (similar to the environment where menstrual pants were used) of the same temperature and humidity, in which an open culture flask containing candida albicans of the same concentration was placed, and after 3 hours, the total number of colonies in the culture flask was measured by taking the culture solution in each flask.

(2) Antibacterial test of antibacterial diversion layer 2: 100mL of physiological saline containing 10g of hemoglobin and 1g of epithelial cells was poured into the antibacterial diversion layer 2 prepared in examples 1 to 6 and comparative examples 1 to 5, and after soaking for 30 minutes, the samples were placed in a closed environment (similar to the environment where menstrual pants were used) with the same temperature and humidity, an open culture flask containing the same concentration of Candida albicans was placed in the closed environment, and after 3 hours, the total number of colonies in the culture flask was measured by taking the culture solution respectively.

(3) Antibacterial test of antibacterial absorbent layer 4: 10 antibacterial absorbent layers 4 prepared in example 2, example 5, examples 7 to 11 and comparative examples 1 to 5 were randomly taken, 100mL of physiological saline containing 10g of hemoglobin and 1g of epithelial cells was poured into the antibacterial absorbent layer 4, and after all of them were absorbed, the samples were placed in a closed environment (similar to the use environment temperature and humidity of menstrual pants) at the same temperature and humidity for 24 hours, and the number of odor generated by the antibacterial absorbent layer 4 in the different examples was tested.

(4) Antibacterial test of composite core: 10 composite cores prepared in examples 1 to 11 and comparative examples 1 to 5 were randomly taken, 100mL of physiological saline containing 10g of hemoglobin and 1g of epithelial cells was poured into the composite core, and after all of the physiological saline was absorbed, the samples were placed in a closed environment (similar to the use environment temperature and humidity of menstrual pants) at the same temperature and humidity for 24 hours, and the number of odor generated by the antibacterial absorbing layer 4 in the different examples was tested.

(5) Liquid absorption speed of composite core body: 100mL of physiological saline containing 10g of hemoglobin and 1g of epithelial cells was poured into the composite cores prepared in examples 1 to 11 and comparative examples 1 to 5, respectively, and the time for completion of each absorption was recorded as the absorption rate in s;

(6) Reverse osmosis amount of composite core: the reverse osmosis amount is that after 100mL of physiological saline containing 10g of hemoglobin and 1g of epithelial cells is absorbed by the composite core body, 10g of filter paper is pressed by a weight of 1.2kg and placed on an antibacterial surface layer 1 of the composite core body for 5min, and the gram weight increased by the filter paper is weighed in g.

(6) Breathability of the antimicrobial top layer 1: the test was carried out using YG461D digital fabric air permeability tester, with the test subjects being the antimicrobial top layer 1 prepared in examples 1-6 and comparative examples 1-5, the test method being carried out according to GB/T5453-1997 standard.

TABLE 1 antibacterial Properties of antibacterial surface layer

As can be seen in combination with example 2 and comparative examples 1-3 and with table 1: any one of the polyetheramine 1000, diisocyanate and 3-glycidoxypropyl trimethoxysilane is absent, which can significantly affect the long-acting antibacterial performance of the antibacterial surface layer 1, probably because the adhesion stability of the antibacterial fiber-loaded nano silver powder is reduced after the raw materials are changed.

In combination with examples 1-3 and comparative examples 4-5 and with Table 1, it can be seen that: the raw materials for preparing the antibacterial fiber are the same, but when the ratio of the raw materials is different, the long-acting antibacterial performance of the antibacterial surface layer 1 is obviously reduced, because the proportion of the raw materials can influence the adhesion stability of the nano silver powder loaded by the antibacterial fiber.

TABLE 2 antibacterial Properties of antibacterial diversion layer

As can be seen in combination with example 2 and comparative examples 1-3 and with table 2: any one of the polyetheramine 1000, diisocyanate and 3-glycidoxypropyl trimethoxysilane is absent, which can significantly affect the long-acting antibacterial performance of the antibacterial diversion layer 2, and the reason is probably that the adhesion stability of the antibacterial fiber-loaded nano silver powder is reduced after the raw materials are changed.

As can be seen in combination with examples 1-3 and comparative examples 4-5 and with table 2: the raw materials for preparing the antibacterial fiber are the same, but when the ratio of the raw materials is different, the long-acting antibacterial performance of the antibacterial diversion layer 2 is obviously reduced, and the reason is probably that the proportion of the raw materials can influence the adhesion stability of the nano silver powder loaded by the antibacterial fiber.

TABLE 3 antibacterial Properties of antibacterial absorber layer

It is understood from the data in Table 3 that the combination of example 5 and example 7 effectively improves the long-acting antibacterial performance of the antibacterial absorbing layer 4 by using the same amount of glycidyl methacrylate instead of methacrylate. The reason is probably that the use of glycidyl methacrylate instead of methacrylate can improve the bonding strength between the antibacterial fiber and the super absorbent resin, so that the antibacterial fiber is not easy to fall off from the super absorbent resin, thereby ensuring the long-acting sterilization performance of the antibacterial absorbing layer 4.

Table 4 antibacterial properties of the composite cores

As can be seen from Table 4, the composite cores of examples 1-6 had better immediate antimicrobial properties, but had somewhat reduced long-term antimicrobial properties, although the immediate and long-term antimicrobial properties of the composite cores of examples 1-6 were better than those of the composite cores of comparative examples 1-5. In addition, the composite core bodies in examples 7-11 have excellent instant antibacterial performance and long-acting antibacterial performance, which shows that the adoption of the polymer resin slurry claimed in the application can improve the bonding fastness between the antibacterial fiber and the super absorbent resin, and is beneficial to improving the long-acting antibacterial performance of the composite core body.

TABLE 5 liquid absorption rate and rewet amount of composite core

It is apparent from the data in Table 5 that the combination of examples 2 and 4-6, and the addition of a fluorocarbon surfactant and an N-fatty amido carboxylate in specific proportions to the spinning solution, increases the imbibition rate of the composite core without increasing reverse osmosis.

As can be seen from the data in Table 5 in combination with examples 8 and 10-11, when the acrylic ester monomer in the super absorbent resin slurry is a composition containing ethyl acrylate and hydroxyethyl acrylate in a specific ratio, the adsorption capacity of the antibacterial absorbent layer 4 can be improved, the liquid absorption can be promoted, the water locking effect of the antibacterial absorbent layer 4 can be effectively improved, and the reverse osmosis performance of the composite core body can be reduced.

TABLE 6 air permeability of antibacterial topcoats

It is understood from the data in Table 6, in combination with examples 2 and 4 to 6, that the addition of fluorocarbon surfactant and N-fatty amido carboxylate in specific proportions to the spinning solution can effectively improve the air permeability of the antimicrobial finish 1. The reason is probably that the fluorocarbon surfactant and the N-fatty amido carboxylate with specific proportion can effectively refine and stabilize bubbles, so that the antibacterial fiber has fine pores, and the air permeability of the antibacterial surface layer 1 is improved.

The present embodiment is merely illustrative of the present application and is not limiting of the present application, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as necessary, but are protected by patent laws within the scope of the claims of the present application.

Claims

1. An integral menstrual period trousers composite core body which is characterized in that: the anti-bacterial adhesive comprises an anti-bacterial surface layer (1), an anti-bacterial diversion layer (2), a first adhesive layer (3), an anti-bacterial absorption layer (4), a second adhesive layer (5) and a breathable bottom layer (6) which are sequentially arranged, wherein the anti-bacterial surface layer (1) comprises 40-50 parts by weight of fluff pulp and 10-15 parts by weight of anti-bacterial fibers, the anti-bacterial diversion layer (2) comprises 60-70 parts by weight of fluff pulp and 10-15 parts by weight of anti-bacterial fibers, and the anti-bacterial absorption layer (4) comprises 65-85 parts by weight of super-absorbent resin slurry and 20-30 parts by weight of anti-bacterial fibers; the antibacterial fiber is obtained by a spinning solution through a spinning technology, wherein the spinning solution comprises the following raw materials in parts by weight:

Carboxymethyl cellulose: 6.5-8.8 parts

Polyetheramine: 4.8-5.4 parts

A diisocyanate: 20-30 parts

3-glycidoxypropyl trimethoxysilane: 2-3 parts

Composite catalyst: 1-3 parts

Nano silver powder: 0.05 to 0.13 part

A diluent: 10-20 parts

Water: 80-90 parts

The composite catalyst comprises an amine catalyst and an organic metal catalyst, wherein the amine catalyst and the organic metal catalyst

The weight ratio of the organic metal catalyst is 1: (3-4).

2. The integrated menstrual pant composite core according to claim 1, wherein: the spinning solution also comprises 3-4 parts by weight of a dispersion promoter, wherein the dispersion promoter comprises a fluorocarbon surfactant and N-fatty amido carboxylate, and the weight ratio of the fluorocarbon surfactant to the N-fatty amido carboxylate is 7: (1-3).

3. The integrated menstrual pant composite core according to claim 2, wherein: the weight ratio of the fluorocarbon surfactant to the N-fatty amido carboxylate is 3.5:1.

4. The integrated menstrual pant composite core according to claim 2, wherein: the fluorocarbon surfactant is nonionic fluorocarbon surfactant.

5. The integrated menstrual pant composite core according to claim 2, wherein: the N-fatty acyl amino carboxylate is selected from one or more of sodium lauroyl sarcosinate, potassium cocoyl glycinate and sodium cocoyl glycinate.

6. The integrated menstrual pant composite core according to any of claims 1-5, wherein: the super absorbent resin slurry comprises the following raw materials in parts by weight:

glycidyl methacrylate: 55-75 parts

Acrylate monomer: 30-40 parts

Neutralizing agent: 0.1-0.2 part

Tertiary amine catalyst: 2-4 parts

And (3) an initiator: 1.0 to 1.8 parts

Crosslinking agent: 1-3 parts

Dispersing agent: 50-60 parts.

7. The integrated menstrual pant composite core according to claim 6, wherein: the acrylic ester monomer comprises ethyl acrylate and hydroxyethyl acrylate, and the weight ratio of the ethyl acrylate to the hydroxyethyl acrylate is 3: (1-2).

8. The integrated menstrual pant composite core according to claim 6, wherein: the cross-linking agent is any one of pentaerythritol triallyl ether and trimethylolpropane triacrylate, and the initiator is any one or a combination of more than one of potassium persulfate, sodium persulfate and azodiisobutyronitrile.

9. A method of making an integrated menstrual pant composite core according to claim 1, wherein: the method comprises the following steps:

preparing antibacterial fibers:

carboxymethyl cellulose, polyether amine, diisocyanate and 3-glycidol ether oxypropyl trimethoxy

Adding silane, a composite catalyst and nano silver powder into a solvent, heating to 50-60 ℃, and stirring for reacting for 2-4h to obtain a spinning solution;

spinning the spinning solution, and then collecting, drying and crushing the spinning solution to obtain antibacterial fibers; wherein,

the rotating speed of the rotating cylinder is 4-5r/min, the collecting distance is 20-30cm, the applied voltage is 40-60KV, and the drying temperature is 55-65 ℃;

preparation of an antimicrobial top layer (1):

mixing fluff pulp and antibacterial fibers according to a proportion into a net, and shaping by hot air to obtain an antibacterial surface layer (1);

preparing an antibacterial diversion layer (2):

mixing fluff pulp and antibacterial fibers according to a proportion into a net, and shaping by hot air to obtain an antibacterial diversion layer (2);

preparing a composite core:

compounding the antibacterial diversion layer (2) with the antibacterial surface layer (1) to obtain a first compound

A material;

mixing the Gao Xishui resin slurry with antibacterial fibers according to a proportion, and lifting in an inert gas environment

Carrying out prepolymerization reaction at 100-120 ℃ for 2-6h, then distilling under reduced pressure to remove dispersant, and crushing to obtain antibacterial polymer particles;

applying the first adhesive on the side of the first composite facing away from the antimicrobial surface layer (1)

The layer (3) is used for uniformly applying antibacterial polymer particles on one side, away from the antibacterial diversion layer (2), of the first adhesive layer (3) to form the antibacterial absorption layer (4) so as to obtain a second composite material;

applying the second glue on the side of the breathable bottom layer (6) facing the antibacterial absorbing layer (4)

An adhesive layer (5) to obtain a third composite material;

-combining the antimicrobial absorbent layer (4) in the second composite material with the third composite material

And (3) the second adhesive layer (5) is compounded to obtain the composite core body.

10. The method of making an integrated menstrual pant composite core according to claim 9, wherein: in the step of preparing the antibacterial fiber, 3-4 parts by weight of a dispersion promoter is also added into the spinning solution, the dispersion promoter comprises a fluorocarbon surfactant and N-fatty amido carboxylate, and the weight ratio of the fluorocarbon surfactant to the N-fatty amido carboxylate is 7: (1-3).