CN111603311B - Production method of knitted fabric sanitary towel - Google Patents
Production method of knitted fabric sanitary towel Download PDFInfo
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- CN111603311B CN111603311B CN201910133220.4A CN201910133220A CN111603311B CN 111603311 B CN111603311 B CN 111603311B CN 201910133220 A CN201910133220 A CN 201910133220A CN 111603311 B CN111603311 B CN 111603311B
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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
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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
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Abstract
The invention discloses a production method of a knitted fabric sanitary towel, which comprises the following specific steps: compounding the two wing materials with the surface layer: spraying structural adhesive on the back surfaces of the two wing materials to be compounded with the surface layers, conveying the materials to a conveyor belt to wait for compounding with the core body, wherein the surface layers are pure cotton knitted fabrics; compounding the core body and the base film: spraying structural adhesive on the basement membrane, and then three-folding the core body. According to the production method of the knitted fabric sanitary towel, the layers are gradually compounded step by step, so that the composite connection strength of the sanitary towel is increased, the production of the sanitary towel is layered, the production efficiency is improved, and simultaneously, the composite strength of the sanitary towel can be increased.
Description
Technical Field
The invention relates to a knitted fabric sanitary towel, improves the traditional field of knitted fabric sanitary towel processing, and particularly relates to a method for producing a knitted fabric sanitary towel.
Background
The sanitary towel is a substance with absorption capacity, the main material is cotton, non-woven fabric, paper pulp or high molecular polymer and high molecular polymer composite paper formed by the composite of the above materials, the design of the side edge is mainly used for preventing side leakage, because the sanitary towel can present a certain angle with the sanitary towel body when in use, the sanitary towel is easy to rub with a groin part, therefore, the sanitary towel using the side edge made of soft material is favored by women, the gum of the sanitary towel is a waterproof material, and menstrual blood can be retained in the sanitary towel and is used for absorbing the menstrual blood flowing out from the vagina when women go wet through menstruation;
the surface layer is a part directly contacted with the skin, the material of the surface layer needs to be soft, the absorption and non-rewet effect of menstrual blood is determined by the weaving method and indentation on the surface, the inner layer of the existing sanitary towel mainly comprises high molecular polymer and high molecular polymer composite paper formed by cotton, non-woven fabric, paper pulp or composites of the above materials, and the high molecular polymer and high molecular polymer composite paper is used for absorbing the menstrual blood flowing out.
Disclosure of Invention
The invention mainly aims to provide a method for producing knitted fabric sanitary napkins, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a production method of knitted fabric sanitary napkins comprises the following steps:
(1) compounding the two wing materials with the surface layer: spraying structural adhesive on the back surfaces of the two wing materials to be compounded with the surface layers, conveying the materials to a conveyor belt to wait for compounding with the core body, wherein the surface layers are pure cotton knitted fabrics;
(2) compounding the core body and the base film: spraying structural adhesive on a bottom film, then carrying out three-folding on a core body, and compounding the core body and the bottom film sprayed with the structural adhesive through a conveying belt, wherein the core body is absorbent paper, and the bottom film is a punched film;
(3) compounding the compounded core body and the surface layer material: conveying the core body compounded with the bottom film in the step (2) to a next glue spraying gun through a conveyor belt to spray structural glue, and compounding the core body with the surface layer material treated in the step (1);
(4) compounding base film spray glue and release paper: conveying the material compounded in the step (3) to a back glue spraying gun through a conveyor belt, spraying back glue, adhering the material to release paper, and compounding;
(5) pressing a flow guide groove: conveying the material compounded in the step (4) into a diversion trench compression roller machine for compression and rolling into a diversion trench by a conveyor belt;
(6) and (3) peripheral sealing and pressing: conveying the material subjected to the medium-pressure diversion trench in the step (5) to a peripheral sealing roller for peripheral sealing and pressing, and conveying the material to a 90-degree turnover machine after pressing to change the towel body from a straight line to a horizontal line;
(7) compounding with a small packaging film subjected to three-point dispensing: conveying the materials subjected to the peripheral sealing and pressing in the step (6) and compounding the materials with the small package film subjected to the three-point glue application;
(8) sealing, cutting and molding: rotating, sealing and cutting the material compounded in the step (7) by a heat-sealing cutter to form;
(9) and (3) stain detection: detecting the sealing and cutting in the step (8) by a stain detector, directly removing unqualified products, folding the qualified products into small bags by a folding machine, packaging the small bags by a packaging worker according to requirements, sealing the small bags by a sealing worker, and then boxing the small bags by a boxing worker according to the specified requirements;
(10) manual sampling inspection: inspecting by an inspector according to a normal spot inspection program, and putting the qualified product into a finished product warehouse; if the normal spot check is not qualified, entering a strict spot check program for checking, and entering a finished product warehouse after the check is qualified; if the result of the strict sampling inspection is not qualified, determining that the batch of products are unqualified products and not obtaining the products in a finished product warehouse.
Preferably, the specific production flow of the pure cotton knitted fabric in the step (1) is as follows:
A. weaving: weaving 100% pure cotton JC50S all cotton yarn in Xinjiang province by a 34-inch 24-needle single-face circular knitting machine to obtain a yarn with a gram weight of 65g/m2The finished product of the pure cotton knitted fabric with the width of 148 cm;
B. dyeing and finishing:
ba. B, putting the pure cotton knitted fabric woven in the step A into a semi-white process formula for boiling at the temperature of 90-100 ℃ for 50-70min, and then draining;
bb. Washing the pure cotton knitted fabric boiled in the step (Ba) for 20-40 min;
bc. Putting the pure cotton knitted fabric washed by the water in the step (Bb) into a disinfecting preparation agent for boiling and bleaching, wherein the boiling and bleaching temperature is 90-100 ℃, the time is 50-70min, and then discharging water;
bd. Washing the pure cotton knitted fabric boiled and bleached in the step (Bc) for 20-40 min;
be. Putting the pure cotton knitted fabric washed by the water in the step (Bd) into glacial acetic acid for pickling for 20-40 min;
bf. Absorbing water for 20-40min at 40-60 ℃ by using 4% of strong water absorption quick-drying agent A for the pure cotton knitted fabric after acid washing in the step (Be);
bg. Carrying out dewatering, scutching, hair feather washing and sizing on the pure cotton knitted fabric after water absorption in the step (Bf), and then inspecting and coiling;
C. slitting:
ca. Rechecking and rewinding the finished rolls checked in the step (Bg);
cb. Cutting the rewound finished product in the step (Ca) into cloth strips with the diameter larger than 33cm according to the required width;
cc. And (5) inspecting and packaging the finished product of the cloth strips cut in the step (Cb).
Preferably, the structural adhesive spraying standard in the steps (1), (2) and (3) is as follows: the glue spraying amount is uniform, the gluing is firm, the glue spraying center point is aligned with the material center position, the heating temperature of the hot melting cylinder is 120-165 ℃, the temperature of the gun body is 120-165 ℃, and the temperature of the throat body is 120-165 ℃.
Preferably, the gum spraying standard in the step (4) is as follows: spraying glue evenly (25-40 g/m)2) The breaking point (within 15 mm) is allowed, the glue spraying center point is aligned with the center position of the bottom film, the heating temperature of the hot melting cylinder is 120-.
Preferably, the emptying requirement standard is as follows: the central positions of the two wing materials, the surface layer, the absorbent paper, the bottom film, the release paper and the small envelope are aligned with the central points of the diversion trench compression roller patterns, the cutter and the conveyor belt of the production line.
Preferably, the formula of the semi-white process in the step (Ba) is as follows: 5 percent of caustic soda and 3 percent of fluorescence remover EK.
Preferably, the formulation of the sterilization formulation in the step (Bc) is: 5% of caustic soda, 15% of hydrogen peroxide, 2% of refining agent and 2% of deoiling agent.
Compared with the prior art, the invention has the following beneficial effects:
1. the layers are gradually compounded step by step, so that the compound connection strength of the sanitary towel is increased, the two wing materials are compounded with the surface layer, the core body is compounded with the bottom film, and then the compounded core body is compounded with the surface layer material, so that the production of the sanitary towel is layered, the production efficiency is improved, and the compound strength of the sanitary towel is increased;
2. the adopted surface layer is a pure cotton knitted fabric woven by 100% pure cotton JC50S full cotton yarn, the production requirements of the sanitary towel are met through dyeing and finishing and slitting processing, the sanitary pure cotton knitted fabric without foreign matters, oil stains and serious bad defects is woven, the use body feeling of the sanitary towel directly contacting with the skin is improved, and a softer surface layer is provided.
Drawings
Fig. 1 is a process flow chart of a production method of a knitted fabric sanitary napkin of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
A production method of knitted fabric sanitary napkins comprises the following steps:
(1) compounding the two wing materials with the surface layer: spraying structural adhesive on the back surfaces of the two wing materials to be compounded with the surface layers, conveying the materials to a conveyor belt to wait for compounding with the core body, wherein the surface layers are pure cotton knitted fabrics;
(2) compounding the core body and the base film: spraying structural adhesive on a bottom film, then carrying out three-folding on a core body, and compounding the core body and the bottom film sprayed with the structural adhesive through a conveying belt, wherein the core body is absorbent paper, and the bottom film is a punched film;
(3) compounding the compounded core body and the surface layer material: sending the core body compounded with the basement membrane in the step (2) into a next glue spraying gun by a conveyor belt to spray structural glue, and compounding the core body with the surface layer material processed in the step (1), wherein the structural glue spraying standard is as follows: the glue spraying amount is uniform, the gluing is firm, the glue spraying center point is aligned with the center position of the material, the heating temperature of a hot melting cylinder is 120 ℃, the gun body temperature is 120 ℃, and the throat body temperature is 120 ℃;
(4) compounding base film spray glue and release paper: and (4) conveying the material compounded in the step (3) by a conveyor belt into a back adhesive spraying gun to spray back adhesive, and then adhering the back adhesive with release paper to perform compounding, wherein the back adhesive spraying standard is as follows: spraying glue evenly (25 g/m)2) Allowing a breakpoint (within 15 mm), aligning the glue spraying center point with the center position of the bottom film, and heating the hot melting cylinder at 120 ℃, the gun body at 120 ℃ and the throat body at 120 ℃;
(5) pressing a flow guide groove: conveying the material compounded in the step (4) into a diversion trench compression roller machine for compression and rolling into a diversion trench by a conveyor belt;
(6) and (3) peripheral sealing and pressing: conveying the material subjected to the medium-pressure diversion trench in the step (5) to a peripheral sealing roller for peripheral sealing and pressing, and conveying the material to a 90-degree turnover machine after pressing to change the towel body from a straight line to a horizontal line;
(7) compounding with a small packaging film subjected to three-point dispensing: conveying the materials subjected to the peripheral sealing and pressing in the step (6) to be compounded with the small package film subjected to three-point glue application, wherein the discharge requirement standard is as follows: the central positions of the two wing materials, the surface layer, the absorbent paper, the bottom film, the release paper and the small envelope are aligned with the central points of the diversion trench compression roller pattern, the cutter and the conveyor belt of the production line;
(8) sealing, cutting and molding: rotating, sealing and cutting the material compounded in the step (7) by a heat-sealing cutter to form;
(9) and (3) stain detection: detecting the sealing and cutting in the step (8) by a stain detector, directly removing unqualified products, folding the qualified products into small bags by a folding machine, packaging the small bags by a packaging worker according to requirements, sealing the small bags by a sealing worker, and then boxing the small bags by a boxing worker according to the specified requirements;
(10) manual sampling inspection: inspecting by an inspector according to a normal spot inspection program, and putting the qualified product into a finished product warehouse; if the normal spot check is not qualified, entering a strict spot check program for checking, and entering a finished product warehouse after the check is qualified; if the result of the strict sampling inspection is not qualified, determining that the batch of products are unqualified products and not obtaining the products in a finished product warehouse.
Example 2
A production method of knitted fabric sanitary napkins comprises the following steps:
(1) compounding the two wing materials with the surface layer: spraying structural adhesive on the back surfaces of the two wing materials to be compounded with the surface layers, conveying the materials to a conveyor belt to wait for compounding with the core body, wherein the surface layers are pure cotton knitted fabrics;
(2) compounding the core body and the base film: spraying structural adhesive on a bottom film, then carrying out three-folding on a core body, and compounding the core body and the bottom film sprayed with the structural adhesive through a conveying belt, wherein the core body is absorbent paper, and the bottom film is a punched film;
(3) compounding the compounded core body and the surface layer material: sending the core body compounded with the basement membrane in the step (2) into a next glue spraying gun by a conveyor belt to spray structural glue, and compounding the core body with the surface layer material processed in the step (1), wherein the structural glue spraying standard is as follows: the glue spraying amount is uniform, the gluing is firm, the glue spraying center point is aligned with the center position of the material, the heating temperature of a hot melting cylinder is 140 ℃, the gun body temperature is 140 ℃, and the throat body temperature is 140 ℃;
(4) compounding base film spray glue and release paper: and (4) conveying the material compounded in the step (3) by a conveyor belt into a back adhesive spraying gun to spray back adhesive, and then adhering the back adhesive with release paper to perform compounding, wherein the back adhesive spraying standard is as follows: spraying glue evenly (32 g/m)2) The allowable breaking point (within 15 mm), the glue spraying center point and the center position of the bottom film are aligned, the heating temperature of the hot melting cylinder is 140 ℃, the gun body temperature is 140 ℃, and the throat body temperature is 140 ℃;
(5) pressing a flow guide groove: conveying the material compounded in the step (4) into a diversion trench compression roller machine for compression and rolling into a diversion trench by a conveyor belt;
(6) and (3) peripheral sealing and pressing: conveying the material subjected to the medium-pressure diversion trench in the step (5) to a peripheral sealing roller for peripheral sealing and pressing, and conveying the material to a 90-degree turnover machine after pressing to change the towel body from a straight line to a horizontal line;
(7) compounding with a small packaging film subjected to three-point dispensing: conveying the materials subjected to the peripheral sealing and pressing in the step (6) to be compounded with the small package film subjected to three-point glue application, wherein the discharge requirement standard is as follows: the central positions of the two wing materials, the surface layer, the absorbent paper, the bottom film, the release paper and the small envelope are aligned with the central points of the diversion trench compression roller pattern, the cutter and the conveyor belt of the production line;
(8) sealing, cutting and molding: rotating, sealing and cutting the material compounded in the step (7) by a heat-sealing cutter to form;
(9) and (3) stain detection: detecting the sealing and cutting in the step (8) by a stain detector, directly removing unqualified products, folding the qualified products into small bags by a folding machine, packaging the small bags by a packaging worker according to requirements, sealing the small bags by a sealing worker, and then boxing the small bags by a boxing worker according to the specified requirements;
(10) manual sampling inspection: inspecting by an inspector according to a normal spot inspection program, and putting the qualified product into a finished product warehouse; if the normal spot check is not qualified, entering a strict spot check program for checking, and entering a finished product warehouse after the check is qualified; if the result of the strict sampling inspection is not qualified, determining that the batch of products are unqualified products and not obtaining the products in a finished product warehouse.
Example 3
A production method of knitted fabric sanitary napkins comprises the following steps:
(1) compounding the two wing materials with the surface layer: spraying structural adhesive on the back surfaces of the two wing materials to be compounded with the surface layers, conveying the materials to a conveyor belt to wait for compounding with the core body, wherein the surface layers are pure cotton knitted fabrics;
(2) compounding the core body and the base film: spraying structural adhesive on a bottom film, then carrying out three-folding on a core body, and compounding the core body and the bottom film sprayed with the structural adhesive through a conveying belt, wherein the core body is absorbent paper, and the bottom film is a punched film;
(3) compounding the compounded core body and the surface layer material: sending the core body compounded with the basement membrane in the step (2) into a next glue spraying gun by a conveyor belt to spray structural glue, and compounding the core body with the surface layer material processed in the step (1), wherein the structural glue spraying standard is as follows: the glue spraying amount is uniform, the gluing is firm, the glue spraying center point is aligned with the material center position, the heating temperature of a hot melting cylinder is 165 ℃, the gun body temperature is 165 ℃, and the throat body temperature is 165 ℃;
(4) compounding base film spray glue and release paper: and (4) conveying the material compounded in the step (3) by a conveyor belt into a back adhesive spraying gun to spray back adhesive, and then adhering the back adhesive with release paper to perform compounding, wherein the back adhesive spraying standard is as follows: spraying glue evenly (40 g/m)2) The allowable breaking point (within 15 mm), the glue spraying center point and the center position of the bottom film are aligned, the heating temperature of the hot melting cylinder is 165 ℃, the gun body temperature is 165 ℃, and the throat body temperature is 165 ℃;
(5) pressing a flow guide groove: conveying the material compounded in the step (4) into a diversion trench compression roller machine for compression and rolling into a diversion trench by a conveyor belt;
(6) and (3) peripheral sealing and pressing: conveying the material subjected to the medium-pressure diversion trench in the step (5) to a peripheral sealing roller for peripheral sealing and pressing, and conveying the material to a 90-degree turnover machine after pressing to change the towel body from a straight line to a horizontal line;
(7) compounding with a small packaging film subjected to three-point dispensing: conveying the materials subjected to the peripheral sealing and pressing in the step (6) to be compounded with the small package film subjected to three-point glue application, wherein the discharge requirement standard is as follows: the central positions of the two wing materials, the surface layer, the absorbent paper, the bottom film, the release paper and the small envelope are aligned with the central points of the diversion trench compression roller pattern, the cutter and the conveyor belt of the production line;
(8) sealing, cutting and molding: rotating, sealing and cutting the material compounded in the step (7) by a heat-sealing cutter to form;
(9) and (3) stain detection: detecting the sealing and cutting in the step (8) by a stain detector, directly removing unqualified products, folding the qualified products into small bags by a folding machine, packaging the small bags by a packaging worker according to requirements, sealing the small bags by a sealing worker, and then boxing the small bags by a boxing worker according to the specified requirements;
(10) manual sampling inspection: inspecting by an inspector according to a normal spot inspection program, and putting the qualified product into a finished product warehouse; if the normal spot check is not qualified, entering a strict spot check program for checking, and entering a finished product warehouse after the check is qualified; if the result of the strict sampling inspection is not qualified, determining that the batch of products are unqualified products and not obtaining the products in a finished product warehouse.
Example 4
The specific production flow of the pure cotton knitted fabric is as follows:
A. weaving: weaving 100% pure cotton JC50S all cotton yarn in Xinjiang province by a 34-inch 24-needle single-face circular knitting machine to obtain a yarn with a gram weight of 65g/m2The finished product of the pure cotton knitted fabric with the width of 148 cm;
B. dyeing and finishing:
ba. And B, putting the pure cotton knitted fabric woven in the step A into a semi-white process formula for boiling, wherein the boiling temperature is 90 ℃, the boiling time is 50min, and then draining water, wherein the semi-white process formula comprises the following steps: 5% of caustic soda and an EK 3% fluorescence remover;
bb. Washing the boiled pure cotton knitted fabric in the step (Ba) for 20 min;
bc. Putting the pure cotton knitted fabric washed in the step (Bb) into a disinfecting preparation agent for boiling and bleaching, wherein the boiling and bleaching temperature is 90 ℃, the time is 50min, and then, putting water, wherein the formula of the disinfecting preparation agent is as follows: 5% of caustic soda, 15% of hydrogen peroxide, 2% of refining agent and 2% of deoiling agent;
bd. Washing the pure cotton knitted fabric boiled and bleached in the step (Bc) for 20 min;
be. Putting the pure cotton knitted fabric washed by the water in the step (Bd) into glacial acetic acid for pickling for 20 min;
bf. Absorbing water for 20min at 40 ℃ by using 4% of strong water absorption quick-drying agent A for the pure cotton knitted fabric after acid washing in the step (Be);
bg. Carrying out dewatering, scutching, hair feather washing and sizing on the pure cotton knitted fabric after water absorption in the step (Bf), and then inspecting and coiling;
C. slitting:
ca. Rechecking and rewinding the finished rolls checked in the step (Bg);
cb. Cutting the rewound finished product in the step (Ca) into cloth strips with the diameter larger than 33cm according to the required width;
cc. And (5) inspecting and packaging the finished product of the cloth strips cut in the step (Cb).
Example 5
The specific production flow of the pure cotton knitted fabric is as follows:
A. weaving: weaving 100% pure cotton JC50S all cotton yarn in Xinjiang province by a 34-inch 24-needle single-face circular knitting machine to obtain a yarn with a gram weight of 65g/m2The finished product of the pure cotton knitted fabric with the width of 148 cm;
B. dyeing and finishing:
ba. And B, boiling the pure cotton knitted fabric woven in the step A in a semi-white process formula at 95 ℃ for 60min, and then discharging water, wherein the semi-white process formula is as follows: 5% of caustic soda and an EK 3% fluorescence remover;
bb. Washing the pure cotton knitted fabric boiled in the step (Ba) for 30 min;
bc. Putting the pure cotton knitted fabric washed in the step (Bb) into a disinfecting preparation agent for boiling and bleaching, wherein the boiling and bleaching temperature is 95 ℃, the time is 60min, and then, putting water, wherein the formula of the disinfecting preparation agent is as follows: 5% of caustic soda, 15% of hydrogen peroxide, 2% of refining agent and 2% of deoiling agent;
bd. Washing the pure cotton knitted fabric boiled and bleached in the step (Bc) for 30 min;
be. Putting the pure cotton knitted fabric washed by the water in the step (Bd) into glacial acetic acid for pickling for 30 min;
bf. Absorbing water for 30min at 50 ℃ by using 4% of strong water absorption quick-drying agent A for the pure cotton knitted fabric after acid washing in the step (Be);
bg. Carrying out dewatering, scutching, hair feather washing and sizing on the pure cotton knitted fabric after water absorption in the step (Bf), and then inspecting and coiling;
C. slitting:
ca. Rechecking and rewinding the finished rolls checked in the step (Bg);
cb. Cutting the rewound finished product in the step (Ca) into cloth strips with the diameter larger than 33cm according to the required width;
cc. And (5) inspecting and packaging the finished product of the cloth strips cut in the step (Cb).
Example 6
The specific production flow of the pure cotton knitted fabric is as follows:
A. weaving: weaving 100% pure cotton JC50S all cotton yarn in Xinjiang province by a 34-inch 24-needle single-face circular knitting machine to obtain a yarn with a gram weight of 65g/m2The finished product of the pure cotton knitted fabric with the width of 148 cm;
B. dyeing and finishing:
ba. And B, boiling the pure cotton knitted fabric woven in the step A in a semi-white process formula for 70min at the boiling temperature of 100 ℃, and then discharging water, wherein the semi-white process formula is as follows: 5% of caustic soda and an EK 3% fluorescence remover;
bb. Washing the boiled pure cotton knitted fabric in the step (Ba) for 40 min;
bc. Putting the pure cotton knitted fabric washed in the step (Bb) into a disinfecting preparation agent for boiling and bleaching, wherein the boiling and bleaching temperature is 100 ℃, the time is 70min, and then, putting water, wherein the formula of the disinfecting preparation agent is as follows: 5% of caustic soda, 15% of hydrogen peroxide, 2% of refining agent and 2% of deoiling agent;
bd. Washing the pure cotton knitted fabric boiled and bleached in the step (Bc) for 40 min;
be. Putting the pure cotton knitted fabric washed by the water in the step (Bd) into glacial acetic acid for pickling for 40 min;
bf. Absorbing water for 40min at 60 ℃ by using 4% of strong water absorption quick-drying agent A for the pure cotton knitted fabric after acid washing in the step (Be);
bg. Carrying out dewatering, scutching, hair feather washing and sizing on the pure cotton knitted fabric after water absorption in the step (Bf), and then inspecting and coiling;
C. slitting:
ca. Rechecking and rewinding the finished rolls checked in the step (Bg);
cb. Cutting the rewound finished product in the step (Ca) into cloth strips with the diameter larger than 33cm according to the required width;
cc. And (5) inspecting and packaging the finished product of the cloth strips cut in the step (Cb).
Table 1 shows the actual specification parameters of the sheets in the sanitary napkin production of examples 1-3:
TABLE 1
Table 2 shows the comparison of the data and the softness test of the data in the production of the pure cotton knitted fabrics in examples 4 to 6, and the results are as follows:
TABLE 2
As can be seen from the experimental data in examples 1 to 6, tables 1 and 2, the composite connection strength of the sanitary napkin is increased by gradually compounding the layers in steps, the two wing materials are compounded with the surface layer, the core body is compounded with the bottom film, and then the compounded core body is compounded with the surface layer material, so that the sanitary napkin is layered in production, the production efficiency is improved, and the composite strength of the sanitary napkin is increased; the adopted surface layer is a pure cotton knitted fabric woven by 100% pure cotton JC50S full cotton yarn, the production requirements of the sanitary towel are met through dyeing and finishing and slitting processing, the pure cotton knitted fabric which is sanitary, free of foreign matters, free of oil stains and free of serious bad defects is woven, the use body feeling of the sanitary towel directly contacting with the skin is improved, a softer surface layer is provided, the softness degree of the pure cotton knitted fabric is improved through the table 2, and the embodiment 2 and the embodiment 5 are the optimal selection.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A production method of knitted fabric sanitary napkins is characterized in that: the method comprises the following specific steps:
(1) compounding the two wing materials with the surface layer: spraying structural adhesive on the back surfaces of the two wing materials to be compounded with the surface layers, conveying the materials to a conveyor belt to wait for compounding with the core body, wherein the surface layers are pure cotton knitted fabrics;
(2) compounding the core body and the base film: spraying structural adhesive on a bottom film, then carrying out three-folding on a core body, and compounding the core body and the bottom film sprayed with the structural adhesive through a conveying belt, wherein the core body is absorbent paper, and the bottom film is a punched film;
(3) compounding the compounded core body and the surface layer material: conveying the core body compounded with the bottom film in the step (2) to a next glue spraying gun through a conveyor belt to spray structural glue, and compounding the core body with the surface layer material treated in the step (1);
(4) compounding base film spray glue and release paper: conveying the material compounded in the step (3) to a back glue spraying gun through a conveyor belt, spraying back glue, adhering the material to release paper, and compounding;
(5) pressing a flow guide groove: conveying the material compounded in the step (4) into a diversion trench compression roller machine for compression and rolling into a diversion trench by a conveyor belt;
(6) and (3) peripheral sealing and pressing: conveying the material subjected to the medium-pressure diversion trench in the step (5) to a peripheral sealing roller for peripheral sealing and pressing, and conveying the material to a 90-degree turnover machine after pressing to change the towel body from a straight line to a horizontal line;
(7) compounding with a small packaging film subjected to three-point dispensing: conveying the materials subjected to the peripheral sealing and pressing in the step (6) and compounding the materials with the small package film subjected to the three-point glue application;
(8) sealing, cutting and molding: rotating, sealing and cutting the material compounded in the step (7) by a heat-sealing cutter to form; in the steps (1) to (8), the material discharging requirement standard is as follows: the central positions of the two wing materials, the surface layer, the absorbent paper, the bottom film, the release paper and the small envelope are aligned with the central points of the diversion trench compression roller pattern, the cutter and the conveyor belt of the production line;
(9) and (3) stain detection: detecting the sealing and cutting in the step (8) by a stain detector, directly removing unqualified products, folding the qualified products into small bags by a folding machine, packaging the small bags by a packaging worker according to requirements, sealing the small bags by a sealing worker, and then boxing the small bags by a boxing worker according to the specified requirements;
(10) manual sampling inspection: inspecting by an inspector according to a normal spot inspection program, and putting the qualified product into a finished product warehouse; if the normal spot check is not qualified, entering a strict spot check program for checking, and entering a finished product warehouse after the check is qualified; if the result of the strict sampling inspection is not qualified, determining that the batch of products are unqualified products and not obtaining the products in a finished product warehouse.
2. A method for producing a knitted fabric sanitary napkin according to claim 1, wherein: the specific production flow of the pure cotton knitted fabric in the step (1) is as follows:
A. weaving: weaving 100% pure cotton JC50S all cotton yarn in Xinjiang province by a 34-inch 24-needle single-face circular knitting machine to obtain a yarn with a gram weight of 65g/m2The finished product of the pure cotton knitted fabric with the width of 148 cm;
B. dyeing and finishing:
(Ba), putting the pure cotton knitted fabric woven in the step A into a semi-white process formula for scouring, wherein the scouring temperature is 90-100 ℃, the scouring time is 50-70min, and then discharging water;
(Bb), washing the boiled pure cotton knitted fabric in the step (Ba) for 20-40 min;
(Bc), putting the pure cotton knitted fabric washed in the step (Bb) into a disinfecting preparation agent for boiling and bleaching, wherein the boiling and bleaching temperature is 90-100 ℃, the time is 50-70min, and then, draining water;
(Bd), washing the pure cotton knitted fabric boiled and bleached in the step (Bc) for 20-40 min;
(Be), putting the pure cotton knitted fabric washed by the water in the step (Bd) into glacial acetic acid for pickling for 20-40 min;
(Bf) absorbing water for 20-40min at 40-60 ℃ by using 4% of water absorbing quick-drying agent for the pure cotton knitted fabric after acid washing in the step (Be);
(Bg), dewatering, scutching, washing hair feather and shaping the pure cotton knitted fabric after absorbing water in the step (Bf), and then inspecting and coiling;
C. slitting:
(Ca), rechecking and rewinding the finished rolls checked in the step (Bg);
(Cb) cutting the rewound finished product in the step (Ca) into cloth strips with the diameter larger than 33cm according to the required width;
(Cc) inspecting and packaging the cloth strips cut in the step (Cb) into finished products.
3. A method for producing a knitted fabric sanitary napkin according to claim 1, wherein: the structural adhesive spraying standard in the steps (1), (2) and (3) is as follows: the glue spraying amount is uniform, the gluing is firm, the glue spraying center point is aligned with the material center position, the heating temperature of the hot melting cylinder is 120-165 ℃, the temperature of the gun body is 120-165 ℃, and the temperature of the throat body is 120-165 ℃.
4. A method for producing a knitted fabric sanitary napkin according to claim 1, wherein: the gum spraying standard in the step (4) is as follows: spraying glue uniformly, wherein the glue spraying amount is 25-40g/m2The break point within 15mm, the glue spraying center point and the center position of the bottom film are allowed to align, the heating temperature of the hot melting cylinder is 120-165 ℃, the temperature of the gun body is 120-165 ℃, and the temperature of the throat body is 120-165 ℃.
5. A method for producing a knitted fabric sanitary napkin according to claim 2, wherein: the formula of the semi-white process in the step (Ba) is as follows: 5% of caustic soda and 3% of fluorescence remover.
6. A method for producing a knitted fabric sanitary napkin according to claim 2, wherein: the formula of the sterilization preparation agent in the step (Bc) is as follows: 5% of caustic soda, 15% of hydrogen peroxide, 2% of refining agent and 2% of deoiling agent.
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