CN106361501B - Sanitary napkin - Google Patents
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- CN106361501B CN106361501B CN201610763250.XA CN201610763250A CN106361501B CN 106361501 B CN106361501 B CN 106361501B CN 201610763250 A CN201610763250 A CN 201610763250A CN 106361501 B CN106361501 B CN 106361501B
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- sanitary towel
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/40—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing ingredients of undetermined constitution or reaction products thereof, e.g. plant or animal extracts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
- A61F2013/47281—Sanitary towels, incontinence pads or napkins specially adapted for female use with internal collecting device
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hematology (AREA)
- Materials Engineering (AREA)
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- Absorbent Articles And Supports Therefor (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a sanitary towel, which comprises a sanitary towel body, wherein an embedded groove is arranged on the sanitary towel body, a high water absorption layer is arranged in the embedded groove, a side wing is arranged on the high water absorption layer, a side groove for embedding the side wing is arranged on the sanitary towel body, the sanitary towel body is made of pure cotton, the high water absorption layer comprises a core layer and a fixing layer coated outside the core layer, the fixing layer is made of pure cotton, the core layer protrudes from the embedded groove to form an arch, the fixing layer coats the core layer, a plurality of water permeable holes are arranged on the fixing layer, the core layer is made of high water absorption resin, when the sanitary towel is used, the sanitary towel body is made of pure cotton, under the action of the high water absorption layer in the embedded groove on the sanitary towel, the water absorption rate of the high water absorption layer is greater than that of the pure cotton, so that when liquid enters the sanitary towel, therefore, in the whole walking or vibrating process of the liquid absorbed by the high water absorption layer, the liquid can be firmly absorbed in the high water absorption layer due to the difference of the absorption force, and the side leakage of the sanitary towel is prevented.
Description
Technical Field
The present invention relates to the field of feminine products.
Background
Sanitary towel is a material that possesses the absorptive capacity, and main material is cotton, non-woven fabrics, the macromolecular polymer and the macromolecular polymer composite paper that paper pulp or above material complex formed, and the design of side mainly is used for preventing the edge leakage, because can present certain angle with the sanitary towel body during the use, more easily with the part of the groin come into touch the friction, consequently the sanitary towel of the side of using soft material is more favored by women. The back adhesive of the sanitary napkin is a waterproof material, and can retain menstrual blood in the sanitary napkin to absorb the menstrual blood flowing out from the vagina when women have menstrual flow.
In the prior art, although the sanitary towel has better water absorption capacity, the water locking capacity of the sanitary towel is poor, and side leakage is easy to occur.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a sanitary towel which is not easy to cause side leakage.
In order to achieve the purpose, the invention provides the following technical scheme: .
A sanitary napkin characterized by:
including the sanitary towel body, be provided with the caulking groove on the sanitary towel body, be provided with the super absorbent polymer layer in the caulking groove, be provided with the flank on the super absorbent polymer layer, set up the side channel that supplies the flank embedding on the sanitary towel body, the sanitary towel body is the pure cotton material, the super absorbent polymer layer includes sandwich layer and cladding fixed bed outside the sandwich layer, the fixed bed is the pure cotton material, the sandwich layer is the arch from the caulking groove protrusion, fixed bed cladding sandwich layer, and be provided with a plurality of holes of permeating water on the fixed bed, the sandwich layer is super absorbent polymer, super absorbent polymer comprises following parts by weight:
100-300 parts of acrylic acid
0.01 to 0.03 portion of cross-linking agent
1.5-5 parts of initiator
20-60 parts of acrylamide
10 to 20 portions of reinforcing agent
3-15 parts of 4,4 '-diamino-3, 3' -biphenyldisulfonic acid
Sodium n-dodecanesulphonate: 3-15 parts.
As a further improvement of the invention:
the cross-linking agent is a mixture of N, N-diethyl acetoacetamide and oxalamide.
As a further improvement of the invention: the cross-linking agent is a mixture of N, N-diethyl acetoacetamide and oxalamide in a mass ratio of 1:1
As a further improvement of the invention:
the initiator is a mixture of potassium persulfate and sodium sulfite.
As a further improvement of the invention:
the initiator is a mixture of potassium persulfate and sodium sulfite with the mass ratio of 1: 2.
As a further improvement of the invention:
the enhancer is itaconic acid.
As a further improvement of the invention:
the super absorbent resin is prepared by the following steps:
(1) adding sodium hydroxide into acrylic acid according to the formula amount to neutralize the acrylic acid;
(2) preparing an aqueous solution from acrylamide and a neutralized acrylic acid solution, adding a cross-linking agent, the acrylamide, an initiator, a reinforcing agent, 4 '-diamino-3, 3' -biphenyldisulfonic acid and n-dodecylsulfonic acid sodium, uniformly stirring, and carrying out polymerization reaction for 5 hours at 70 ℃ to obtain a polymer;
(3) and granulating, drying and crushing the polymer to obtain the super absorbent resin.
When the sanitary towel is used, the sanitary towel body is made of the pure cotton, and the water absorption rate of the high water absorption layer in the embedded groove on the sanitary towel is higher than that of the pure cotton, so that when liquid enters the sanitary towel, a difference value of the water absorption capacity is formed between the sanitary towel body and the water absorption layer, and the liquid absorbed by the high water absorption layer can be firmly absorbed in the high water absorption layer due to the difference value of the water absorption capacity in the whole walking or vibrating process, so that the side leakage of the sanitary towel is prevented. The core layer protrudes from the caulking groove to form an arch shape, so that the human body part can be attached more. In addition, the fixing layer can fix the sanitary towel body and the core layer, so that the core layer cannot be separated from the sanitary towel body, and the water permeable holes in the fixing layer can be better used for absorbing water.
Meanwhile, the main water absorbing substance of the high water absorbing layer is high water absorbing resin, the main component of the high water absorbing resin is acrylic resin, and after the high water absorbing resin is neutralized by sodium hydroxide, a cross-linking agent, an initiator, a reinforcing agent, 4 '-diamino-3, 3' -biphenyldisulfonic acid and n-dodecyl sodium sulfonate are added together for reaction to obtain the high water absorbing resin.
Acrylic acid is used as a common water-absorbent resin carrier, acrylamide is added, the acrylamide is similar to an acrylic acid mechanism and has good compatibility, and meanwhile, the acrylamide is provided with an active group, can be used under the action of a dispersing agent, and has good compatibility with a cross-linking agent, an initiator, a reinforcing agent, 4 '-diamino-3, 3' -biphenyldisulfonic acid and sodium n-dodecanesulphonate. By adding the cross-linking agent, the whole acrylic resin can be cross-linked with each other to form a three-dimensional network structure. Meanwhile, the cross-linking agent can also react with other auxiliary agents to firmly lock the effective substances on the whole network structure. The initiator is added primarily to provide a reaction potential to the reaction to allow the reaction to proceed. In the later stage, particularly, the diamino-3.3 '-biphenyldisulfonic acid and the sodium n-dodecanesulphonate are added, on one hand, the diamino-3.3' -biphenyldisulfonic acid reacts with acrylamide in the reaction process and is combined into acrylic resin, the overall acrylic acid structure cannot be influenced due to the reaction with the acrylamide, the overall water absorption can be greatly improved, meanwhile, the diamino-3.3 '-biphenyldisulfonic acid can further improve the absorption of menstrual blood, and meanwhile, the diamino-3.3' -biphenyldisulfonic acid is provided with biphenyl groups, so that the strength of the whole material can be further improved.
The mixture of the N, N-diethyl acetoacetamide and the oxalamide is selected as the cross-linking agent, and the mixture of the N, N-diethyl acetoacetamide and the oxalamide can be cross-linked with the whole acrylic acid to promote the whole acrylic acid to form a complete three-dimensional network structure, and particularly when the mass ratio of the mixture of the N, N-diethyl acetoacetamide and the oxalamide is 1:1, the water absorption effect can be optimal. Meanwhile, N-diethyl acetoacetamide and oxalamide can be crosslinked with diamino-3.3 '-biphenyldisulfonic acid and N-dodecanesulfonic acid sodium salt, so that the structural force of the diamino-3.3' -biphenyldisulfonic acid and the N-dodecanesulfonic acid sodium salt and the whole material is stronger, the loss is avoided, and the water absorption effect is ensured.
Drawings
FIG. 1 is an exploded view of an embodiment of a sanitary napkin body;
FIG. 2 is a view showing the structure of a super absorbent layer of an embodiment of a sanitary napkin main body.
Reference numerals:
1. a sanitary napkin body; 2. caulking grooves; 3. a super absorbent layer; 4. a side wing; 5. a side groove; 6. a core layer; 7. and fixing the layer.
Detailed Description
Sanitary towel body embodiment:
including sanitary towel body 1, be provided with caulking groove 2 on the sanitary towel body 1, be provided with high water absorption layer 3 in the caulking groove 2, be provided with flank 4 on the high water absorption layer 3, set up the side channel 5 that supplies the embedding of flank 4 on the sanitary towel body 1, sanitary towel body 1 is the pure cotton material, high water absorption layer 3 includes sandwich layer 6 and cladding fixed bed 7 outside sandwich layer 6, fixed bed 7 is the pure cotton material, sandwich layer 6 is the arch from the caulking groove protrusion, fixed bed cladding sandwich layer 6, and is provided with a plurality of holes of permeating water on the fixed bed 7, sandwich layer 6 is the super absorbent resin.
When the sanitary towel is used, the sanitary towel body 1 is made of pure cotton, the water absorption rate of the high water absorption layer 3 in the embedded groove 2 on the sanitary towel is larger than that of the pure cotton, so that when liquid enters the sanitary towel, a difference value of the water absorption force is formed between the sanitary towel body 1 and the water absorption layer, the liquid absorbed by the high water absorption layer 3 moves or shakes in the whole process, and the liquid can be firmly absorbed in the high water absorption layer 3 due to the difference value of the water absorption force, so that the phenomenon of side leakage of the sanitary towel is prevented. The core layer 6 protrudes from the caulking groove to form an arch shape, so that the human body part can be attached more. In addition, the fixed layer 8 can be arranged to fix the sanitary towel body 1 and the core layer 6, so that the core layer can not be separated from the fixed layer, and the water permeable holes in the fixed layer 8 can be arranged to absorb water better.
Examples of super absorbent resins:
the first embodiment is as follows:
acrylic acid 100 parts
0.02 portion of cross-linking agent
5 portions of initiator
Acrylamide 40 parts
10 portions of reinforcing agent
9 parts of 4,4 '-diamino-3, 3' -biphenyldisulfonic acid
Sodium n-dodecanesulphonate: 15 parts.
The cross-linking agent is a mixture of N, N-diethyl acetoacetamide and oxalamide.
The cross-linking agent is a mixture of N, N-diethyl acetoacetamide and oxalamide in a mass ratio of 1:1
The initiator is a mixture of potassium persulfate and sodium sulfite.
The initiator is a mixture of potassium persulfate and sodium sulfite with the mass ratio of 1: 2.
The enhancer is itaconic acid.
The super absorbent resin is prepared by the following steps:
(1) adding sodium hydroxide into acrylic acid according to the formula amount to neutralize the acrylic acid;
(2) preparing an aqueous solution from acrylamide and a neutralized acrylic acid solution, adding a cross-linking agent, the acrylamide, an initiator, a reinforcing agent, 4 '-diamino-3, 3' -biphenyldisulfonic acid and n-dodecylsulfonic acid sodium, uniformly stirring, and carrying out polymerization reaction for 5 hours at 70 ℃ to obtain a polymer;
(3) and granulating, drying and crushing the polymer to obtain the super absorbent resin.
Example two:
acrylic acid 200 parts
0.01 part of cross-linking agent
3 portions of initiator
60 portions of acrylamide
15 portions of reinforcing agent
3 parts of 4,4 '-diamino-3, 3' -biphenyldisulfonic acid
Sodium n-dodecanesulphonate: 9 parts.
The cross-linking agent is a mixture of N, N-diethyl acetoacetamide and oxalamide.
The cross-linking agent is a mixture of N, N-diethyl acetoacetamide and oxalamide in a mass ratio of 1:1
The initiator is a mixture of potassium persulfate and sodium sulfite.
The initiator is a mixture of potassium persulfate and sodium sulfite with the mass ratio of 1: 2.
The enhancer is itaconic acid.
The super absorbent resin is prepared by the following steps:
(1) adding sodium hydroxide into acrylic acid according to the formula amount to neutralize the acrylic acid;
(2) preparing an aqueous solution from acrylamide and a neutralized acrylic acid solution, adding a cross-linking agent, the acrylamide, an initiator, a reinforcing agent, 4 '-diamino-3, 3' -biphenyldisulfonic acid and n-dodecylsulfonic acid sodium, uniformly stirring, and carrying out polymerization reaction for 5 hours at 70 ℃ to obtain a polymer;
(3) and granulating, drying and crushing the polymer to obtain the super absorbent resin.
Example three:
acrylic acid 300 parts
0.03 part of cross-linking agent
Initiator 1.5 parts
Acrylamide 20 parts
20 portions of reinforcing agent
15 parts of 4,4 '-diamino-3, 3' -biphenyldisulfonic acid
Sodium n-dodecanesulphonate: and 3 parts.
The cross-linking agent is a mixture of N, N-diethyl acetoacetamide and oxalamide.
The cross-linking agent is a mixture of N, N-diethyl acetoacetamide and oxalamide in a mass ratio of 1:1
The initiator is a mixture of potassium persulfate and sodium sulfite.
The initiator is a mixture of potassium persulfate and sodium sulfite with the mass ratio of 1: 2.
The enhancer is itaconic acid.
The super absorbent resin is prepared by the following steps:
(1) adding sodium hydroxide into acrylic acid according to the formula amount to neutralize the acrylic acid;
(2) preparing an aqueous solution from acrylamide and a neutralized acrylic acid solution, adding a cross-linking agent, the acrylamide, an initiator, a reinforcing agent, 4 '-diamino-3, 3' -biphenyldisulfonic acid and n-dodecylsulfonic acid sodium, uniformly stirring, and carrying out polymerization reaction for 5 hours at 70 ℃ to obtain a polymer;
(3) and granulating, drying and crushing the polymer to obtain the super absorbent resin.
Example four:
acrylic acid 300 parts
0.03 part of cross-linking agent
Initiator 1.5 parts
Acrylamide 20 parts
20 portions of reinforcing agent
15 parts of 4,4 '-diamino-3, 3' -biphenyldisulfonic acid
Sodium n-dodecanesulphonate: and 3 parts.
The cross-linking agent is a mixture of N, N-diethyl acetoacetamide and oxalamide.
The cross-linking agent is a mixture of N, N-diethyl acetoacetamide and oxalamide in a mass ratio of 1:3
The initiator is a mixture of potassium persulfate and sodium sulfite.
The initiator is a mixture of potassium persulfate and sodium sulfite with the mass ratio of 1: 1.
The enhancer is itaconic acid.
The super absorbent resin is prepared by the following steps:
(1) adding sodium hydroxide into acrylic acid according to the formula amount to neutralize the acrylic acid;
(2) preparing an aqueous solution from acrylamide and a neutralized acrylic acid solution, adding a cross-linking agent, the acrylamide, an initiator, a reinforcing agent, 4 '-diamino-3, 3' -biphenyldisulfonic acid and n-dodecylsulfonic acid sodium, uniformly stirring, and carrying out polymerization reaction for 5 hours at 70 ℃ to obtain a polymer;
(3) and granulating, drying and crushing the polymer to obtain the super absorbent resin.
Comparative example one:
acrylic acid 300 parts
0.03 part of cross-linking agent
Initiator 1.5 parts
Acrylamide 20 parts
20 portions of reinforcing agent
15 parts of 4,4 '-diamino-3, 3' -biphenyldisulfonic acid
The cross-linking agent is N, N-diethyl acetoacetamide.
The initiator is a mixture of potassium persulfate and sodium sulfite.
The initiator is a mixture of potassium persulfate and sodium sulfite with the mass ratio of 1: 2.
The enhancer is itaconic acid.
The super absorbent resin is prepared by the following steps:
(1) adding sodium hydroxide into acrylic acid according to the formula amount to neutralize the acrylic acid;
(2) preparing an aqueous solution from acrylamide and a neutralized acrylic acid solution, adding a cross-linking agent, the acrylamide, an initiator, a reinforcing agent and 4,4 '-diamino-3, 3' -biphenyldisulfonic acid, uniformly stirring, and carrying out polymerization reaction for 5 hours at 70 ℃ to obtain a polymer;
(3) and granulating, drying and crushing the polymer to obtain the super absorbent resin.
Comparative example two:
acrylic acid 300 parts
0.03 part of cross-linking agent
Initiator 1.5 parts
Acrylamide 20 parts
20 portions of reinforcing agent
Sodium n-dodecanesulphonate: and 3 parts.
The cross-linking agent is a mixture of oxalamides.
The cross-linking agent is a mixture of oxalamide with the mass ratio of 1:1
The initiator is a mixture of potassium persulfate and sodium sulfite.
The initiator is a mixture of potassium persulfate and sodium sulfite with the mass ratio of 1: 2.
The enhancer is itaconic acid.
The super absorbent resin is prepared by the following steps:
(1) adding sodium hydroxide into acrylic acid according to the formula amount to neutralize the acrylic acid;
(2) preparing an aqueous solution from acrylamide and a neutralized acrylic acid solution, adding a cross-linking agent, the acrylamide, an initiator, a reinforcing agent and sodium n-dodecanesulphonate, uniformly stirring, and carrying out polymerization reaction for 5 hours at 70 ℃ to obtain a polymer;
(3) and granulating, drying and crushing the polymer to obtain the super absorbent resin.
The super absorbent resins obtained in examples and comparative examples were weighed to obtain Ag, and placed in beakers, each having a weight of Bg, and 500ml of water was added thereto, and left to stand at room temperature for 12 hours to saturate the resin with water, and excess water was filtered off with a filter cloth, wherein the weight of the beaker was Cg, and the water absorption capacity Q (g/g) was calculated by the following formula:
Q＝(C-B)/A
| example one | Example two | EXAMPLE III | Example four | EXAMPLE five | Comparative example 1 | Comparative example No. two | |
| Q（g/g） | 181 | 175 | 177 | 159 | 161 | 102 | 65 |
The super absorbent resin prepared by the invention has better water absorption.
The main water absorbing substance of the high water absorbing layer is high water absorbing resin, the main component of the high water absorbing resin is acrylic resin, and the high water absorbing resin is obtained by adding a cross-linking agent, an initiator, a reinforcing agent, 4 '-diamino-3, 3' -biphenyldisulfonic acid and n-dodecyl sodium sulfonate into the high water absorbing resin for reaction after the high water absorbing resin is neutralized by sodium hydroxide.
Acrylic acid is used as a common water-absorbent resin carrier, acrylamide is added, the acrylamide is similar to an acrylic acid mechanism and has good compatibility, and meanwhile, the acrylamide is provided with an active group, can be used under the action of a dispersing agent, and has good compatibility with a cross-linking agent, an initiator, a reinforcing agent, 4 '-diamino-3, 3' -biphenyldisulfonic acid and sodium n-dodecanesulphonate. By adding the cross-linking agent, the whole acrylic resin can be cross-linked with each other to form a three-dimensional network structure. Meanwhile, the cross-linking agent can also react with other auxiliary agents to firmly lock the effective substances on the whole network structure. The initiator is added primarily to provide a reaction potential to the reaction to allow the reaction to proceed. In the later stage, particularly, the diamino-3.3 '-biphenyldisulfonic acid and the sodium n-dodecanesulphonate are added, on one hand, the diamino-3.3' -biphenyldisulfonic acid reacts with acrylamide in the reaction process and is combined into acrylic resin, the overall acrylic acid structure cannot be influenced due to the reaction with the acrylamide, the overall water absorption can be greatly improved, meanwhile, the diamino-3.3 '-biphenyldisulfonic acid can further improve the absorption of menstrual blood, and meanwhile, the diamino-3.3' -biphenyldisulfonic acid is provided with biphenyl groups, so that the strength of the whole material can be further improved.
The mixture of the N, N-diethyl acetoacetamide and the oxalamide is selected as the cross-linking agent, and the mixture of the N, N-diethyl acetoacetamide and the oxalamide can be cross-linked with the whole acrylic acid to promote the whole acrylic acid to form a complete three-dimensional network structure, and particularly when the mass ratio of the mixture of the N, N-diethyl acetoacetamide and the oxalamide is 1:1, the water absorption effect can be optimal. Meanwhile, N-diethyl acetoacetamide and oxalamide can be crosslinked with diamino-3.3 '-biphenyldisulfonic acid and N-dodecanesulfonic acid sodium salt, so that the structural force of the diamino-3.3' -biphenyldisulfonic acid and the N-dodecanesulfonic acid sodium salt and the whole material is stronger, the loss is avoided, and the water absorption effect is ensured.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (6)
1. A sanitary napkin characterized by: including sanitary towel body (1), be provided with caulking groove (2) on sanitary towel body (1), be provided with high water absorption layer (3) in caulking groove (2), be provided with flank (4) on high water absorption layer (3), set up side channel (5) that supply flank (4) embedding on sanitary towel body (1), sanitary towel body (1) is the pure cotton material, high water absorption layer (3) include sandwich layer (6) and cladding fixed bed (7) outside sandwich layer (6), fixed bed (7) are the pure cotton material, sandwich layer (6) are the arch from the caulking groove protrusion, the fixed bed cladding sandwich layer (6), and be provided with a plurality of holes of permeating water on fixed bed (7), sandwich layer (6) are the super absorbent resin, the super absorbent resin includes following parts by weight and constitutes:
100-300 parts of acrylic acid
0.01 to 0.03 portion of cross-linking agent
1.5-5 parts of initiator
20-60 parts of acrylamide
10 to 20 portions of reinforcing agent
3-15 parts of 4,4 '-diamino-3, 3' -biphenyldisulfonic acid
Sodium n-dodecanesulphonate: 3-15 parts;
the super absorbent resin is prepared by the following steps:
(1) adding sodium hydroxide into acrylic acid according to the formula amount to neutralize the acrylic acid;
(2) preparing an aqueous solution from acrylamide and a neutralized acrylic acid solution, adding a cross-linking agent, the acrylamide, an initiator, a reinforcing agent, 4 '-diamino-3, 3' -biphenyldisulfonic acid and n-dodecylsulfonic acid sodium, uniformly stirring, and carrying out polymerization reaction for 5 hours at 70 ℃ to obtain a polymer;
(3) and granulating, drying and crushing the polymer to obtain the super absorbent resin.
2. A sanitary napkin as claimed in claim 1, wherein: the cross-linking agent is a mixture of N, N-diethyl acetoacetamide and oxalamide.
3. A sanitary napkin as claimed in claim 2, wherein: the cross-linking agent is a mixture of N, N-diethyl acetoacetamide and oxalamide in a mass ratio of 1: 1.
4. A sanitary napkin as claimed in claim 3, wherein: the initiator is a mixture of potassium persulfate and sodium sulfite.
5. A sanitary napkin as claimed in claim 4, wherein: the initiator is a mixture of potassium persulfate and sodium sulfite with the mass ratio of 1: 2.
6. A sanitary napkin as claimed in claim 3, wherein: the enhancer is itaconic acid.
Priority Applications (1)
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| CN201610763250.XA CN106361501B (en) | 2016-08-31 | 2016-08-31 | Sanitary napkin |
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| CN106361501B true CN106361501B (en) | 2020-03-10 |
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| CN106880446A (en) * | 2017-03-15 | 2017-06-23 | 君临天下（天津）电子商务有限公司 | A kind of viscous glutinous sanitary cotton pad of chitin fiber cladding |
| CN107736965A (en) * | 2017-10-19 | 2018-02-27 | 宁波智果科技咨询服务有限公司 | A kind of high water adsorbing paper urine pants |
| CN110575318B (en) * | 2019-09-03 | 2021-08-24 | 刘敏 | High-water-absorptivity deodorant diaper and preparation method thereof |
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