CN117297879B - Easy-to-push-out tampon and preparation method thereof - Google Patents
Easy-to-push-out tampon and preparation method thereof Download PDFInfo
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- CN117297879B CN117297879B CN202311351242.0A CN202311351242A CN117297879B CN 117297879 B CN117297879 B CN 117297879B CN 202311351242 A CN202311351242 A CN 202311351242A CN 117297879 B CN117297879 B CN 117297879B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 229920000742 Cotton Polymers 0.000 claims abstract description 153
- 239000010410 layer Substances 0.000 claims abstract description 80
- 230000001070 adhesive effect Effects 0.000 claims abstract description 36
- 239000000835 fiber Substances 0.000 claims abstract description 36
- 239000000853 adhesive Substances 0.000 claims abstract description 34
- 239000002356 single layer Substances 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000009960 carding Methods 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 239000006096 absorbing agent Substances 0.000 claims abstract description 7
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 7
- 238000000748 compression moulding Methods 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 108010073771 Soybean Proteins Proteins 0.000 claims description 12
- 235000019710 soybean protein Nutrition 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 229920002261 Corn starch Polymers 0.000 claims description 11
- 239000008120 corn starch Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 8
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 2
- 230000002175 menstrual effect Effects 0.000 description 5
- 229920000297 Rayon Polymers 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000002788 crimping Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Classifications
-
- 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
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/2082—Apparatus or processes of manufacturing
- A61F13/2085—Catamenial tampons
-
- 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
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/2002—Tampons, e.g. catamenial tampons; Accessories therefor characterised by the use
- A61F13/202—Catamenial tampons
-
- 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
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/2082—Apparatus or processes of manufacturing
- A61F13/2085—Catamenial tampons
- A61F13/2094—Catamenial tampons rolling a web material to form a tampon
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The invention discloses a tampon easy to push out and a preparation method thereof, comprising the following steps: s1, carding cotton fibers, paving and stacking the cotton fibers into single-layer cotton fibers after carding, spraying a modified adhesive on the single-layer cotton fibers, covering a layer of single-layer cotton fibers to obtain double-layer cotton fibers, stacking the double-layer cotton fibers to obtain a cotton web layer, wrapping the cotton web layer by using non-woven fabrics, and pressing the cotton web layer into strip-shaped fiber layers; s2, fixing cotton threads on the central part of the strip-shaped fiber layer, exposing the tail ends of the cotton threads outside the strip-shaped fiber layer by 10-20cm, then curling the strip-shaped fiber layer to form a strip-shaped cylindrical absorber, and performing microwave heating treatment after compression molding in a former to obtain a cotton sliver body of the sanitary cotton sliver; s3, the cotton sliver body is filled into the guide tube to manufacture the cotton sliver. According to the sanitary cotton sliver, the adhesive is added into the cotton fibers, so that the compressed cotton sliver body is not easy to expand, and the problem that the pushing force is increased due to expansion of the cotton sliver body due to time change is solved.
Description
Technical Field
The invention belongs to the technical field of sanitary articles, and particularly relates to a sanitary cotton sliver easy to push out and a preparation method thereof.
Background
Tampons are a menstrual device that prevents menstrual flow from exiting the vaginal orifice by contacting and absorbing menstrual flow through the vaginal cavity of a woman. The built-in type sanitary cotton sliver is accepted and used by more and more people because the wearing and the movement are not affected when the sanitary cotton sliver is used, and the side leakage is not caused when the sanitary cotton sliver is absorbed fully.
Currently, there are two basic types of tampons used in feminine hygiene. The first type is a finger-insertable tampon, which is designed to be inserted directly by the user's finger. The second type is an applicator tampon, which is designed to be inserted with the aid of an applicator. Both types are typically prepared by folding or rolling a rectangular strip of loose, associated absorbent material into a blank and then compressing the blank into a cylindrical product known as a tampon body. The swab may or may not have an outer cover. In both types, the withdrawal string is attached to the tampon body, and the tampon is then wrapped and packaged for sale. In an applicator tampon, the tampon is assembled into the applicator prior to wrapping and packaging. The cotton sliver body mainly comprises W-shaped, fan-shaped and cylindrical shapes, and the raw materials mainly comprise viscose fibers, cotton fibers and the like.
The applicator tampon has a paper or plastic tampon pledget attached to it for easy introduction by the user. The overall construction of the tampon barrel is divided into an outer tube and an inner tube, the outer tube having a smooth surface and a rounded front end for insertion into the body. The front end of the outer tube is typically provided with a petal-shaped opening to facilitate pushing the tampon out of the outer tube. The inner tube corresponds to a push rod and has the function of pushing out the tampon from the petal-shaped opening of the outer tube in a piston-type pushing-in manner.
However, most tampons are currently manufactured in the following manner: a certain amount of cotton fibers, viscose fibers or a mixture of the cotton fibers and the viscose fibers is made into a strip shape through carding or carding without limitation, the strip shape is cut into pieces through slicing, then a pull rope is sewn for compression, and then the cotton fibers and the viscose fibers are packed into a catheter to form the sanitary cotton sliver. Because internal stress exists between the cotton fibers after the cotton fibers are compressed, the cotton fibers can expand in the guide tube in the storage process, so that the stability of the quality of the sanitary cotton sliver is greatly influenced, the pushing force of the cotton sliver is increased when the sanitary cotton sliver is used, and inconvenience is brought to a user.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a tampon easy to push out and a preparation method thereof, and the adhesive is added into cotton fibers to connect the cotton fibers in a compressed tampon body, so that the tampon body is not easy to expand, and the problem that the push-out force is increased due to expansion of the tampon body due to time variation is solved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A method of making an easy-to-push tampon comprising the steps of:
S1, carding cotton fibers, paving and stacking the cotton fibers into single-layer cotton fibers after carding, spraying a modified adhesive on the single-layer cotton fibers, covering a layer of single-layer cotton fibers to obtain double-layer cotton fibers, stacking the double-layer cotton fibers to obtain a cotton web layer, wrapping the cotton web layer by using non-woven fabrics, and pressing the cotton web layer into strip-shaped fiber layers;
S2, fixing cotton threads on the central part of the strip-shaped fiber layer, exposing the tail ends of the cotton threads outside the strip-shaped fiber layer by 10-20cm, then curling the strip-shaped fiber layer to form a strip-shaped cylindrical absorber, and performing microwave heating treatment after compression molding in a former to obtain a cotton sliver body of the sanitary cotton sliver;
s3, the cotton sliver body is filled into the guide tube to manufacture the cotton sliver.
Preferably, the grammage of the web layer in step S1 is 300-900g/m 2.
Preferably, the number of superimposed layers in step S1 is not less than 5.
Preferably, the preparation method of the modified adhesive in the step S1 is as follows: adding soybean protein and corn starch into deionized water, stirring uniformly, adding sodium hydroxide solution, heating, adding dilute hydrochloric acid to adjust pH to 6.5-7.5 after the treatment, adding polyvinyl alcohol and sodium dodecyl sulfate, stirring for reaction, and cooling after the reaction is finished to obtain the modified adhesive.
Preferably, the mass ratio of the soybean protein to the corn starch to the deionized water to the sodium hydroxide solution to the polyvinyl alcohol to the sodium dodecyl sulfate is 30-40:40-50:500:50-80:10-20:1-2; the mass concentration of the sodium hydroxide solution is 5%.
Preferably, the temperature of the heating treatment is 80-90 ℃ and the time is 1-2h; the temperature of the stirring reaction is 60-70 ℃ and the time is 2-3h.
Preferably, the spraying amount of the modified adhesive in the step S1 is 1.5-3.5g/m 2.
Preferably, the pressure of the compression molding in the step S2 is 4-8MPa; the temperature of the microwave heating treatment is 40-60 ℃ and the time is 1-10s.
The invention also provides a tampon which is easy to push out and is prepared by the method.
Compared with the prior art, the invention has the following beneficial effects:
(1) The cotton fiber is carded to obtain a single-layer cotton fiber, then a modified adhesive is sprayed on the single-layer cotton fiber, the single-layer cotton fiber is pressed after being overlapped to prepare a strip-shaped fiber layer, and then the strip-shaped fiber layer is curled, pressed and subjected to microwave heat treatment to obtain a cotton sliver body; because the adhesive is added, the adhesive has better viscosity under the dry state condition, so that cotton fibers are firmly combined with cotton fibers, the problem that the pushing force is increased due to fiber expansion is prevented, the quality stability of the cotton sliver is improved, when the cotton sliver is placed in a body to absorb menstrual blood, after water is encountered, the interaction force between hydroxyl groups and water molecules is far greater than the interaction force between the adhesive and cotton fiber molecules, the adhesive property of the adhesive is rapidly reduced, the bonding force between the cotton fibers is reduced, and the cotton sliver body is expanded to fully absorb menstrual blood, so that the absorption capacity of the cotton sliver is not influenced.
(2) According to the tampon easy to push out, the prepared modified adhesive is made of the soybean protein, corn starch and other raw materials which are natural environment-friendly materials, the tampon is nontoxic and harmless to human bodies, the soybean protein and the corn starch are subjected to alkali heat treatment under alkaline conditions, the spherical space structure of the protein is stretched, the protein structure is changed, the internal active groups are exposed, the adhesive property of the soybean protein adhesive is further improved, meanwhile, the corn can be subjected to gelatinization reaction through alkali heat treatment, the starch aggregate structure is damaged, the aggregate is enabled to be moist, the composite adhesive formed by the soybean protein and the corn starch is more stable, meanwhile, the polyvinyl alcohol is added to serve as a thickening agent, the viscosity of the adhesive is improved, a large number of hydroxyl groups are contained in the structure, the adhesive can be combined with the hydroxyl groups in soybean protein and corn starch molecules to form hydrogen bonds, the viscosity of the modified adhesive in a dry state is enhanced, and the stability in the storage process is ensured.
Drawings
Fig. 1 is a physical diagram of a cotton sliver prepared in example 1 of the present invention;
Fig. 2 is a physical diagram of a cotton sliver prepared in comparative example 1 of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
A method of making an easy-to-push tampon comprising the steps of:
S1, carding cotton fibers, spreading and stacking the cotton fibers into single-layer cotton fibers after carding, spraying a modified adhesive on the single-layer cotton fibers, wherein the spraying amount is 2.5g/m 2, then covering a layer of single-layer cotton fibers to obtain double-layer cotton fibers, stacking 8 layers of double-layer cotton fibers to obtain a cotton web layer, wrapping the cotton web layer by using non-woven fabrics, and pressing the cotton web layer into strip-shaped fiber layers;
S2, fixing cotton threads on the central part of the strip-shaped fiber layer, exposing the tail ends of the cotton threads outside the strip-shaped fiber layer by 15cm, then crimping the strip-shaped fiber layer to form a strip-shaped cylindrical absorber, pressing and forming in a forming device, wherein the pressure is 6MPa, and then carrying out microwave heating treatment at the temperature of 50 ℃ for 5S to obtain a cotton sliver body of the sanitary cotton sliver;
s3, the cotton sliver body is filled into the guide tube to manufacture the cotton sliver.
The preparation method of the modified adhesive in the step S1 comprises the following steps: adding 35g of soybean protein and 45g of corn starch into 500g of deionized water, uniformly stirring, adding 70g of sodium hydroxide solution with the mass concentration of 5%, heating at 85 ℃ for 1.5h, adding dilute hydrochloric acid with the mass concentration of 5% after the treatment is finished for regulating the pH value to 7, then adding 20g of polyvinyl alcohol and 1.5g of sodium dodecyl sulfate, stirring at 65 ℃ for 2.5h, and cooling after the reaction is finished, thus obtaining the modified adhesive.
Example 2
A method of making an easy-to-push tampon comprising the steps of:
S1, carding cotton fibers, spreading and stacking the cotton fibers into single-layer cotton fibers after carding, spraying a modified adhesive on the single-layer cotton fibers, wherein the spraying amount is 2g/m 2, then covering a layer of single-layer cotton fibers to obtain double-layer cotton fibers, stacking 8 layers of double-layer cotton fibers to obtain a cotton web layer, wrapping the cotton web layer by using non-woven fabrics, and pressing the cotton web layer into strip-shaped fiber layers;
S2, fixing cotton threads on the central part of the strip-shaped fiber layer, exposing the tail ends of the cotton threads outside the strip-shaped fiber layer by 15cm, then crimping the strip-shaped fiber layer to form a strip-shaped cylindrical absorber, pressing and forming in a forming device, wherein the pressure is 8MPa, and then carrying out microwave heating treatment at the temperature of 60 ℃ for 3S to obtain a cotton sliver body of the sanitary cotton sliver;
s3, the cotton sliver body is filled into the guide tube to manufacture the cotton sliver.
The preparation method of the modified adhesive in the step S1 comprises the following steps: adding 30g of soybean protein and 50g of corn starch into 500g of deionized water, uniformly stirring, adding 60g of sodium hydroxide solution with the mass concentration of 5%, heating at 80 ℃ for 2 hours, adding dilute hydrochloric acid with the mass concentration of 5% after the treatment is finished to adjust the pH value to 6.5, then adding 20g of polyvinyl alcohol and 1g of sodium dodecyl sulfate, stirring at 60 ℃ for 3 hours, and cooling after the reaction is finished, thus obtaining the modified adhesive.
Example 3
A method of making an easy-to-push tampon comprising the steps of:
S1, carding cotton fibers, spreading and stacking the cotton fibers into single-layer cotton fibers after carding, spraying a modified adhesive on the single-layer cotton fibers, wherein the spraying amount is 3.5g/m 2, then covering a layer of single-layer cotton fibers to obtain double-layer cotton fibers, stacking 8 layers of double-layer cotton fibers to obtain a cotton web layer, wrapping the cotton web layer by using non-woven fabrics, and pressing the cotton web layer into strip-shaped fiber layers;
s2, fixing cotton threads on the central part of the strip-shaped fiber layer, exposing the tail ends of the cotton threads outside the strip-shaped fiber layer for 15cm, then crimping the strip-shaped fiber layer to form a strip-shaped cylindrical absorber, pressing and forming in a forming device, wherein the pressure is 4MPa, and then carrying out microwave heating treatment at the temperature of 40 ℃ for 10S to obtain a cotton sliver body of the sanitary cotton sliver;
s3, the cotton sliver body is filled into the guide tube to manufacture the cotton sliver.
The preparation method of the modified adhesive in the step S1 comprises the following steps: adding 40g of soybean protein and 50g of corn starch into 500g of deionized water, uniformly stirring, adding 80g of sodium hydroxide solution with the mass concentration of 5%, heating at 90 ℃ for 1h, adding dilute hydrochloric acid with the mass concentration of 5% after the treatment is finished to adjust the pH value to 7.5, then adding 10g of polyvinyl alcohol and 2g of sodium dodecyl sulfate, stirring at 70 ℃ for 2h, and cooling after the reaction is finished to obtain the modified adhesive.
Comparative example 1
A method of making an easy-to-push tampon comprising the steps of:
S1, carding cotton fibers, paving and stacking the cotton fibers into single-layer cotton fibers after carding, covering a layer of single-layer cotton fibers on the single-layer cotton fibers to obtain double-layer cotton fibers, superposing 8 layers of double-layer cotton fibers to obtain a cotton web layer, wrapping the cotton web layer by using non-woven fabrics, and pressing the cotton web layer into strip-shaped fiber layers;
S2, fixing cotton threads on the central part of the strip-shaped fiber layer, exposing the tail ends of the cotton threads outside the strip-shaped fiber layer by 15cm, then crimping the strip-shaped fiber layer to form a strip-shaped cylindrical absorber, pressing and forming in a forming device, wherein the pressure is 6MPa, and then carrying out microwave heating treatment at the temperature of 50 ℃ for 5S to obtain a cotton sliver body of the sanitary cotton sliver;
s3, the cotton sliver body is filled into the guide tube to manufacture the cotton sliver.
This comparative example is compared to the examples without the modified adhesive sprayed.
The tampons prepared in examples 1-3 and comparative example 1 were randomly withdrawn, 20 in each group, tested for any 10 push-out forces after production was completed, the push-out force average was calculated, the remaining 10 were left at room temperature for 6 months, the push-out force average was tested, and the absorbent capacity was tested, with the test results as shown in table 1 below:
TABLE 1
As can be seen from fig. 1 to 2, the cotton sliver prepared by the present invention has good stability without cracks due to fiber expansion in appearance after being left for 6 months.
As can be seen from Table 1, the cotton sliver prepared by the method has little change of push-out force in the storage process, and the absorption capacity is basically the same as that of the cotton sliver prepared by not adding the modified adhesive, which indicates that the addition of the modified adhesive does not influence the absorption capacity of the cotton sliver in the use process.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A method of making an easy-to-push tampon comprising the steps of:
S1, carding cotton fibers, paving and stacking the cotton fibers into single-layer cotton fibers after carding, spraying a modified adhesive on the single-layer cotton fibers, covering a layer of single-layer cotton fibers to obtain double-layer cotton fibers, stacking the double-layer cotton fibers to obtain a cotton web layer, wrapping the cotton web layer by using non-woven fabrics, and pressing the cotton web layer into strip-shaped fiber layers;
S2, fixing cotton threads on the central part of the strip-shaped fiber layer, exposing the tail ends of the cotton threads outside the strip-shaped fiber layer by 10-20cm, then curling the strip-shaped fiber layer to form a strip-shaped cylindrical absorber, and performing microwave heating treatment after compression molding in a former to obtain a cotton sliver body of the sanitary cotton sliver;
S3, filling the cotton sliver body into the catheter to prepare the cotton sliver;
The preparation method of the modified adhesive in the step S1 comprises the following steps: adding soybean protein and corn starch into deionized water, stirring uniformly, adding sodium hydroxide solution, heating, adding dilute hydrochloric acid to adjust pH to 6.5-7.5 after the treatment is completed, adding polyvinyl alcohol and sodium dodecyl sulfate, stirring for reaction, and cooling after the reaction is completed to obtain the modified adhesive;
The mass ratio of the soybean protein to the corn starch to the deionized water to the sodium hydroxide solution to the polyvinyl alcohol to the sodium dodecyl sulfate is 30-40:40-50:500:50-80:10-20:1-2; the mass concentration of the sodium hydroxide solution is 5%; the temperature of the heating treatment is 80-90 ℃ and the time is 1-2h; the temperature of the stirring reaction is 60-70 ℃ and the time is 2-3h.
2. The method of claim 1, wherein the web layer in step S1 has a grammage of 300-900g/m 2.
3. The method according to claim 1, wherein the number of superimposed layers in step S1 is not less than 5.
4. The method according to claim 1, wherein in the step S1, the spraying amount of the modified adhesive is 1.5-3.5g/m 2.
5. The method according to claim 1, wherein the pressure of the press molding in step S2 is 4 to 8MPa; the temperature of the microwave heating treatment is 40-60 ℃ and the time is 1-10s.
6. An easy-to-push tampon made according to the method of any one of claims 1-5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311351242.0A CN117297879B (en) | 2023-10-18 | 2023-10-18 | Easy-to-push-out tampon and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311351242.0A CN117297879B (en) | 2023-10-18 | 2023-10-18 | Easy-to-push-out tampon and preparation method thereof |
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| CN117297879A CN117297879A (en) | 2023-12-29 |
| CN117297879B true CN117297879B (en) | 2024-05-17 |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB463133A (en) * | 1935-08-17 | 1937-03-17 | Int Cellucotton Products | Improvements in tampons particularly for catemenial use |
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| CN117297879A (en) | 2023-12-29 |
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