CN110946714B - Preparation method of disposable absorbent article added with shea butter - Google Patents
Preparation method of disposable absorbent article added with shea butter Download PDFInfo
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- CN110946714B CN110946714B CN201911250040.0A CN201911250040A CN110946714B CN 110946714 B CN110946714 B CN 110946714B CN 201911250040 A CN201911250040 A CN 201911250040A CN 110946714 B CN110946714 B CN 110946714B
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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
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
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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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
- A61F13/15731—Treating webs, e.g. for giving them a fibrelike appearance, e.g. by embossing
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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
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51113—Topsheet, i.e. the permeable cover or layer facing the skin comprising an additive, e.g. lotion or odour control
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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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
- A61F2013/15715—Shaping or making outer layers
-
- 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
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51113—Topsheet, i.e. the permeable cover or layer facing the skin comprising an additive, e.g. lotion or odour control
- A61F2013/51117—Topsheet, i.e. the permeable cover or layer facing the skin comprising an additive, e.g. lotion or odour control the lotion having skin care properties
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The invention relates to the field of sanitary products, and provides a preparation method of a disposable absorption product added with shea butter, which solves the problems that the production process of the sanitary product in the prior art is complex, and the sanitary product obtained by the existing production method is easy to generate foreign body sensation and allergy after contacting and rubbing with skin, and comprises the preparation steps of preparing a liquid-permeable surface layer, preparing an absorber and preparing a liquid-impermeable bottom layer, and combining the liquid-permeable surface layer, the absorber and the liquid-impermeable bottom layer into a whole, wherein the preparation method of the liquid-permeable surface layer comprises the following steps: 1) preparing a hydrophilic non-woven fabric, wherein the hydrophilic non-woven fabric is prepared by the following specific steps: 2) spraying or scraping shea butter in liquid state on hydrophilic non-woven fabric on line; 3) after the step 2), applying cold air on line to quickly dry the shea butter; 4) compounding hydrophobic non-woven fabrics on the two transverse sides of the hydrophilic non-woven fabrics treated in the step 3) in an online manner.
Description
Technical Field
The invention relates to the field of sanitary products, in particular to a preparation method of a disposable absorption product added with shea butter.
Background
The disposable absorbing article in the prior art, such as a sanitary towel, has the top layer and the side layer materials contacting with the skin, and due to the ergonomic structure, the sanitary towel can not be placed flatly in practical use, but the towel body deforms, the top layer materials and the private parts, and the side layer materials and the inner sides of thighs generate friction, so that foreign body feeling is generated, the materials are seriously fluffed, and even allergy is generated.
Chinese patent No. 201621270224.5 discloses an anti-allergic gauze sanitary napkin, including being long banding body, the body include hydrophilic layer, absorb core and leak protection basement membrane, the absorption core make by anti-allergic gauze material, the width of absorption core be the width of 3/5 body, the bottom of leak protection basement membrane set up a pair of circular shape glutinous paster that is, glutinous paster use the center of body to set up as central symmetry, the diameter of glutinous paster be the width of 1/3 body, the 1/2 of glutinous paster be located absorb the core under, the body of absorption core both sides in be equipped with the design respectively, the design area be rectangular form. This patent is made through the gauze material that adopts anti-allergy and is absorbed the core to the anaphylaxis effect is prevented in the performance, but the cost of gauze is higher, generally for repetitious usage, all will wash after using up at every turn, and is comparatively troublesome, and the stock solution effect of gauze is poor, takes place the outer phenomenon of leaking easily.
Chinese patent No. 201720751279.6 discloses a porous bamboo charcoal fiber sanitary napkin, comprising a non-woven fabric bag, wherein two layers of dust-free paper are arranged in the non-woven fabric bag, a high molecular water-absorbing resin layer is arranged between the two layers of dust-free paper, a breathable film is arranged on the lower surface of the non-woven fabric bag, a perforated bamboo fiber non-woven fabric is arranged on the upper surface of the non-woven fabric bag, and a plurality of through holes are uniformly arranged on the perforated bamboo fiber non-woven fabric; a far infrared anion magnetic chip layer is arranged between the upper surface of the non-woven fabric bag and the perforated bamboo fiber non-woven fabric. This kind of sanitary towel through setting up the bamboo fibre non-woven fabrics that punches, makes it have softness, close skin, be difficult for arousing allergic characteristics, but its structure is comparatively complicated, and its preparation process needs additionally to increase production facility, and the preparation process is comparatively complicated, and is equipped with far infrared anion magnetic chip in its structural layer, and the roll is very easily damaged in process of production, fails to play actual effect.
Disclosure of Invention
Therefore, aiming at the above content, the invention provides a preparation method of a disposable absorbent article added with shea butter, which solves the problems that the production process of the sanitary article in the prior art is complicated, and the sanitary article obtained by the existing production method is easy to generate foreign body sensation and allergy after being contacted and rubbed with skin.
In order to achieve the purpose, the invention is realized by the following technical scheme: a preparation method of a disposable absorption article added with shea butter comprises the preparation steps of preparing a liquid-permeable surface layer, preparing an absorber and preparing a liquid-impermeable bottom layer, and combining the liquid-permeable surface layer, the absorber and the liquid-impermeable bottom layer into a whole, wherein the absorber is defined to have a longitudinal direction along a length direction and a transverse direction along a width direction, and the preparation method of the liquid-permeable surface layer comprises the following steps:
1) preparing a hydrophilic non-woven fabric, wherein the hydrophilic non-woven fabric is prepared by the following specific steps:
a. fiber slice spinning:
1, oiling the silk thread by using an oiling system in the spinning process, wherein the oiling system comprises a rack and an oil storage device arranged on the rack, the oil storage device is provided with an outlet, the outlet is connected with a metering pump through a conduit, a plurality of closed containing cavities distributed at intervals are arranged in the metering pump, oiling agents are filled in the containing cavities, the bottom of each containing cavity is provided with an outlet, each outlet is connected with an oiling nozzle, the silk thread passes through the lower part of each oiling nozzle, the oiling agent filled in the last containing cavity is shea butter along the conveying direction of the silk thread, and the weight of the shea butter accounts for 0.1-2% of the total oil dosage;
a2, feeding the silk thread obtained after the a1 treatment into a winding machine for winding treatment, stretching, curling, drying, cutting and packaging treatment;
b. fiber web formation after-finishing oiling:
b1, mixing and opening the tows obtained in the step a, and spraying shea butter onto loose fibers after mixing and opening;
b2, performing web forming treatment on the fibers after the b1 treatment;
b3, reinforcing and forming the web after the web formation;
b4, applying shea butter to the reinforced and formed fiber web by adopting a roll coating method, wherein the roll coating method comprises the following specific operations: taking a rubber roller as a transmission medium, and applying shea butter on the fiber web through the rubber roller;
c. b, preparing the product obtained by the treatment in the step b into a non-woven fabric by non-woven fabric forming equipment, and then carrying out hydrophilic treatment to obtain a hydrophilic non-woven fabric;
2) spraying or scraping the shea butter in a liquid state on the hydrophilic non-woven fabric on line, wherein the liquid feeding amount of the shea butter is 0.125-0.3 g/m2；
3) After the step 2), applying cold air on line to quickly dry the shea butter;
4) compounding hydrophobic non-woven fabrics on the two transverse sides of the hydrophilic non-woven fabrics treated in the step 3) in an online manner.
The further improvement is that: the hydrophobic non-woven fabric is obtained by processing shea butter, and compared with the hydrophilic non-woven fabric, the processing method of the hydrophobic non-woven fabric reduces the hydrophilic processing of the last step c.
The further improvement is that: the oiling agent storage device comprises a first oiling agent storage tank, a second oiling agent storage tank and a third oiling agent storage tank which are independently arranged at intervals, and shea butter is filled in the third oiling agent storage tank.
The further improvement is that: the metering pump is internally provided with 3 closed containing cavities which are distributed at intervals and are divided into a first containing cavity, a second containing cavity and a third containing cavity, and the third containing cavity is filled with shea butter.
The further improvement is that the preparation steps of the shea butter are as follows:
crushing: taking the kernel of the Shea butter tree as a raw material, crushing the raw material into 35-40 meshes;
secondly, tempering, adjusting the water content of the pressed cake to be less than 5%, and then wrapping the cake with 5-7kg of cake;
③ squeezing: placing the cake on a partition plate for primary pressing treatment, wherein the pressure is controlled to be 40-50Mpa, the temperature is 60-70 ℃, the residual oil of the primary pressed cake is 18-23%, and the primary pressed cake is repeatedly pressed for 3-4 times, and the residual oil of the final pressed cake is 10-13%;
precipitation and filtration: carrying out heat preservation and precipitation on the crude oil containing the slag obtained by the treatment in the third step, and then filtering at 60-70 ℃;
fine filtering: and then fine filtering is carried out to obtain the shea butter with less than 0.2 percent of impurities.
By adopting the technical scheme, the invention has the beneficial effects that:
1. according to the preparation method of the disposable absorbing article added with the shea butter, the shea butter is added in the hydrophilic non-woven fabric of the liquid-permeable surface layer in the preparation process, the shea butter is added after fiber spinning and fiber web forming, the shea butter in a liquid state is sprayed or scraped on line after the hydrophilic non-woven fabric is prepared, the shea butter is added in the preparation process of the liquid-permeable surface layer for three times, and the shea butter is oiled in stages, so that the disposable absorbing article has the advantages that: firstly, in the process of spinning fiber slices, a plurality of cavities are arranged in a metering pump, shea butter is filled in the last cavity along the conveying direction of a silk thread, the silk thread is oiled for a plurality of times, and the last oiling agent is shea butter, so that the shea butter can be effectively applied to the surface layer of the silk thread, and the oiling is carried out by adopting a plurality of oil nozzles, so that the mutual influence among various oiling agents can be avoided; secondly, the fiber web formation after-finishing oiling is carried out in two stages, namely: spraying shea butter in the mixed and opened tows, and in the second stage: the method is characterized in that shea butter is applied to the reinforced and formed fiber web by a roll coating method, and oiling treatment is performed in two stages, so that oiling of the fiber web is more uniform.
2. After the hydrophilic non-woven fabric is sprayed or scraped with the shea butter on line, cold air is directly applied on line to dry the shea butter quickly, so that the shea butter is quickly dispersed on the hydrophilic non-woven fabric and is quickly combined and fixed with the hydrophilic non-woven fabric.
3. Furthermore, shea butter is also distributed on the hydrophobic non-woven fabrics arranged on the two transverse sides of the hydrophilic non-woven fabrics, namely shea butter is uniformly distributed on the liquid-permeable surface layer, the shea butter contains rich triglyceride, free fatty acid and bioactive substances, mainly triterpenoid alcohols and sterol substances, has the effects of healing wounds, diminishing inflammation, relieving stimulation, moistening epidermis layers and resisting aging and oxidation, and is applied to the liquid-permeable surface layer of the disposable absorption article, so that the friction between the disposable absorption article and the skin during use can be reduced, and the use comfort is improved.
Drawings
Fig. 1 is a schematic structural diagram of an oiling system in an embodiment of the present invention.
Detailed Description
The following detailed description will be provided for the embodiments of the present invention with reference to specific embodiments, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.
Unless otherwise indicated, the techniques employed in the examples are conventional and well known to those skilled in the art, and the reagents and products employed are also commercially available. The source, trade name and if necessary the constituents of the reagents used are indicated at the first appearance.
Examples
Referring to fig. 1, a method for preparing a disposable sanitary napkin added with shea butter comprises the steps of preparing a liquid-permeable surface layer, preparing an absorber and preparing a liquid-impermeable bottom layer, and combining the liquid-permeable surface layer, the absorber and the liquid-impermeable bottom layer into a whole, defining that the absorber has a longitudinal direction along a length direction and a transverse direction along a width direction, and the step of preparing the liquid-permeable surface layer comprises the following steps:
1) preparing a hydrophilic non-woven fabric, wherein the hydrophilic non-woven fabric is prepared by the following specific steps:
a. fiber slice spinning:
1, performing oiling treatment on fiber slices after melt extrusion spinning by an extruder, oiling the silk threads by using an oiling system, wherein the oiling system comprises a frame 1 and an oil storage tank 2 arranged on the frame 1, a metering pump 3 is arranged below the oil storage tank 2, the oil storage tank 2 comprises a first oil storage tank 21, a second oil storage tank 22 and a third oil storage tank 23 which are independently arranged, smooth and soft oil is filled in the first oil storage tank 21, the first oil storage tank is mainly polyol type surfactant, and the model can be ATLASG1045 or S-80; the second oil agent storage tank 22 is filled with an emulsified antistatic oil agent which is mainly alkyl ether phosphate and can adopt models of MC-470, Catanic and Victawt; shea butter is filled in the third oiling agent storage tank 23, outlets are arranged at the bottoms of the first oiling agent storage tank 21, the second oiling agent storage tank 22 and the third oiling agent storage tank 23, the outlets are communicated with the metering pump 3 through a guide pipe 6, 3 sealed containing cavities distributed at intervals are arranged in the metering pump 3 and are distributed into a containing cavity 31, a containing cavity 32 and a containing cavity 33, smooth and soft oiling agents can be selected from ATLASG1045, Span-60 and S-80 are filled in the containing cavity 31, emulsified antistatic oiling agents can be selected from MC-470, Catanic and Victawt are filled in the containing cavity 32, shea butter is filled in the containing cavity 33, outlets are arranged at the bottom of each containing cavity, each outlet is connected with an oiling nozzle 4, an oiling nozzle 4 is provided with an oiling amount control switch 5, a silk thread 7 passes under each oiling nozzle 4 in sequence, and the last containing cavity is arranged along the conveying direction of the silk thread 7, namely, the shea butter filled in the cavity 33 is finally put on the surface of the silk thread, and the oil adding amount of the shea butter accounts for 1 percent of the total oil dosage;
a2, feeding the silk thread obtained after the a1 treatment into a winding machine for winding treatment, stretching, curling, drying, cutting and packaging treatment;
b. fiber web formation after-finishing oiling:
b1, mixing and opening the tows obtained in the step a, and spraying shea butter onto loose fibers after mixing and opening; ,
b2, performing web forming treatment on the fibers after the b1 treatment;
b3, reinforcing and forming the web after the web formation;
b4, applying shea butter to the reinforced and formed fiber web by adopting a roll coating method, wherein the roll coating method comprises the following specific operations: taking a rubber roller as a transmission medium, and applying shea butter on the fiber web through the rubber roller;
c. b, preparing the product obtained by the treatment in the step b into a non-woven fabric by non-woven fabric forming equipment, and then carrying out hydrophilic treatment to obtain a hydrophilic non-woven fabric;
2) spraying the shea butter in a liquid state on the hydrophilic non-woven fabric on line, wherein the liquid loading amount of the shea butter is 0.125g/m2；
3) After the step 2), applying cold air on line to quickly dry the shea butter;
4) and (3) compounding hydrophobic non-woven fabrics on two transverse sides of the hydrophilic non-woven fabric treated in the step 3) in an online manner, wherein the hydrophobic non-woven fabrics are obtained by processing shea butter, compared with the preparation of the hydrophilic non-woven fabrics, the treatment method of the hydrophobic non-woven fabrics omits the last hydrophilic treatment process, and other steps are consistent.
The preparation method of the shea butter comprises the following steps:
crushing: taking the kernel of the Shea butter tree as a raw material, crushing the raw material into 35-40 meshes;
secondly, tempering, adjusting the water content of the pressed cake to be less than 5%, and then wrapping the cake with 6kg of cake;
③ squeezing: placing the cake on a partition plate for primary pressing treatment, wherein the pressure is controlled at 40Mpa, the temperature is 60 ℃, the residual oil of the primary pressed cake is 18 percent, and the primary pressing treatment is repeated for 4 times, and the residual oil of the final pressed cake is 10 percent;
precipitation and filtration: carrying out heat preservation and precipitation on the crude oil containing the slag obtained by the treatment in the third step, and then filtering at 60 ℃;
fine filtering: and then fine filtering is carried out to obtain the shea butter with less than 0.2 percent of impurities.
The shea butter can also be applied to the liquid-permeable surface layers of baby diapers, adult diapers and pull-ups, and can be only distributed on the hydrophilic non-woven fabric of the surface layers, or only distributed on the leakage-proof separation edges on the two sides of the surface layers, or both the two types of the leakage-proof separation edges.
In the step a1, the weight of the shea butter accounts for 0.1-2% of the total oil dosage, the shea butter in a liquid state is sprayed on the hydrophilic non-woven fabric in a line manner, or a scraping manner can be used for replacing the spraying manner, and the liquid applying amount of the shea butter is 0.125-0.3 g/m2The object of the present invention can be achieved within the above-mentioned parameter ranges.
The method is characterized in that the shea butter is blown on the hydrophilic non-woven fabric on line, a hot melt adhesive spraying system of the disposable sanitary product can be adopted, the temperature is controlled within the melting point range, the shea butter can fully flow in a rubber cylinder and a throat pipe, compressed air is added, the shea butter is sprayed or scraped on line into the top layer or the side layer of the disposable sanitary product, the spraying/scraping surface is not limited to a use surface and a non-use surface, the spraying and scraping amount is controlled to be 0.125-0.300 g/m, the upper liquid amount is controlled to be 0.5-1.2% of the quality of the non-woven fabric, cold air is applied on line to prevent shea butter from spraying and drying on line from not influencing the product forming process in time, the upper liquid material is dried locally, and the material is cut and compounded to manufacture the disposable sanitary product.
The preparation method can directly add the shea butter on the existing sanitary towel production line by utilizing a hot melt adhesive machine system, and adds a new functional technical point to the product. The shea butter is directly added into the product without an intermediate carrier, so that the loss in the intermediate processing process is reduced, and the economic benefit is increased.
The sanitary napkin produced by the preparation method of the present invention was tested:
and (3) verification of the finished product of the shea butter: the shea butter is a triglyceride composed of Oleic Acid and stearic Acid, so that the shea butter is broken into Oleic Acid and stearic Acid when heated and desorbed. Adopting a thermal cracking desorption gas chromatograph: the Py/TD-GC-MS detection of the fiber samples gave signals of oleic acid and stearic acid, indicating that the fibers contained shea butter.
The sanitary towel has the following specific implementation effects:
firstly, trial investigation: product trial investigation was conducted on 37 female consumers, and the use touch evaluation of the product containing shea butter was higher than that of the product without the additive, 9 points were evaluated for shea butter, and 7 points were evaluated for shea butter not (the higher the score, the better the use feeling);
testing softness: and (3) testing results of the shea butter non-woven fabric: the material with shea butter added is softer than the material without the shea butter added.
The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.
Claims (5)
1. A preparation method of a disposable absorption article added with shea butter comprises the preparation steps of preparing a liquid-permeable surface layer, preparing an absorber and preparing a liquid-impermeable bottom layer, and combining the liquid-permeable surface layer, the absorber and the liquid-impermeable bottom layer into a whole, wherein the absorber is defined to have a longitudinal direction along a length direction and a transverse direction along a width direction, and the preparation method of the liquid-permeable surface layer is characterized by comprising the following steps of:
1) preparing a hydrophilic non-woven fabric, wherein the hydrophilic non-woven fabric is prepared by the following specific steps:
a. fiber slice spinning:
1, oiling the silk thread by using an oiling system in the spinning process, wherein the oiling system comprises a rack and an oil storage device arranged on the rack, the oil storage device is provided with an outlet, the outlet is connected with a metering pump through a conduit, a plurality of closed containing cavities distributed at intervals are arranged in the metering pump, oiling agents are filled in the containing cavities, the bottom of each containing cavity is provided with an outlet, each outlet is connected with an oiling nozzle, the silk thread passes through the lower part of each oiling nozzle, the oiling agent filled in the last containing cavity is shea butter along the conveying direction of the silk thread, and the weight of the shea butter accounts for 0.1-2% of the total oil dosage;
a2, feeding the silk thread obtained after the a1 treatment into a winding machine for winding treatment, stretching, curling, drying, cutting and packaging treatment;
b. fiber web formation after-finishing oiling:
b1, mixing and opening the tows obtained in the step a, and spraying shea butter onto loose fibers after mixing and opening;
b2, performing web forming treatment on the fibers after the b1 treatment;
b3, reinforcing and forming the web after the web formation;
b4, applying shea butter to the reinforced and formed fiber web by adopting a roll coating method, wherein the roll coating method comprises the following specific operations: taking a rubber roller as a transmission medium, and applying shea butter on the fiber web through the rubber roller;
c. b, preparing the product obtained by the treatment in the step b into a non-woven fabric by non-woven fabric forming equipment, and then carrying out hydrophilic treatment to obtain a hydrophilic non-woven fabric;
2) spraying or spraying on hydrophilic non-woven fabricScraping the shea butter in a liquid state, wherein the liquid loading amount of the shea butter is 0.125-0.3 g/m2；
3) After the step 2), applying cold air on line to quickly dry the shea butter;
4) compounding hydrophobic non-woven fabrics on the two transverse sides of the hydrophilic non-woven fabrics treated in the step 3) in an online manner.
2. The method for preparing a shea butter-containing disposable absorbent article according to claim 1, wherein the method comprises the steps of: the hydrophobic non-woven fabric is obtained by processing shea butter, and compared with the hydrophilic non-woven fabric, the processing method of the hydrophobic non-woven fabric has the advantage that the hydrophilic treatment of the last step c is omitted.
3. The method for preparing a shea butter-containing disposable absorbent article according to claim 1, wherein the method comprises the steps of: the oiling agent storage device comprises a first oiling agent storage tank, a second oiling agent storage tank and a third oiling agent storage tank which are independently arranged at intervals, and shea butter is filled in the third oiling agent storage tank.
4. The method for preparing a shea butter-containing disposable absorbent article according to claim 3, wherein the method comprises the following steps: the metering pump is internally provided with 3 closed containing cavities which are distributed at intervals and are divided into a first containing cavity, a second containing cavity and a third containing cavity, and the third containing cavity is filled with shea butter.
5. The method for preparing a disposable absorbent article added with shea butter according to claim 1 or 2, wherein the shea butter is prepared by the following steps:
crushing: taking the kernel of the Shea butter tree as a raw material, crushing the raw material into 35-40 meshes;
secondly, tempering, adjusting the water content of the pressed cake to be less than 5%, and then wrapping the cake with 5-7kg of cake;
③ squeezing: placing the cake on a partition plate for primary pressing treatment, wherein the pressure is controlled to be 40-50Mpa, the temperature is 60-70 ℃, the residual oil of the primary pressed cake is 18-23%, and the primary pressed cake is repeatedly pressed for 3-4 times, and the residual oil of the final pressed cake is 10-13%;
precipitation and filtration: carrying out heat preservation and precipitation on the crude oil containing the slag obtained by the treatment in the third step, and then filtering at 60-70 ℃;
fine filtering: and then fine filtering is carried out to obtain the shea butter with less than 0.2 percent of impurities.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911250040.0A CN110946714B (en) | 2019-12-09 | 2019-12-09 | Preparation method of disposable absorbent article added with shea butter |
| PCT/CN2020/130706 WO2021115109A1 (en) | 2019-12-09 | 2020-11-22 | Preparation method for disposable absorbent article added with shea butter |
Applications Claiming Priority (1)
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| CN114010403A (en) * | 2021-11-05 | 2022-02-08 | 诺宸股份有限公司 | Sanitary absorption article and preparation method thereof |
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| CN110946714A (en) | 2020-04-03 |
| WO2021115109A1 (en) | 2021-06-17 |
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Effective date of registration: 20221214 Address after: 362261 No.1, Jingyang West Road, Neikeng (Neikeng brand industrial city), Jinjiang City, Quanzhou City, Fujian Province Patentee after: FUJIAN HENGAN HOUSEHOLD LIFE ARTICLE Co.,Ltd. Address before: 362200 HengAn industrial city, Anhai Town, Jinjiang City, Quanzhou City, Fujian Province Patentee before: FUJIAN HENGAN HOLDING Co.,Ltd. Patentee before: FUJIAN HENGAN HOUSEHOLD LIFE ARTICLE Co.,Ltd. Patentee before: HENGAN (CHINA) HYGIENE PRODUCTS Co.,Ltd. |