CN109722791A - A kind of Environmental Super-fine fiber non-woven facial mask cloth and its manufacturing method - Google Patents
A kind of Environmental Super-fine fiber non-woven facial mask cloth and its manufacturing method Download PDFInfo
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- Nonwoven Fabrics (AREA)
Abstract
The present invention relates to Nonwovens In Technology field, especially a kind of Environmental Super-fine fiber non-woven facial mask cloth and its manufacturing method.Two kinds of micro staple fibers of fabric of island-in-sea type and Schizoid are mixed according to a certain percentage, by combing lapping at the uniform web of grammes per square metre, and utilize adaptable non-woven spun lacing composite strengthening technology, form a kind of composite spunlaced non-woven fabrics, the non-woven fabrics is produced into Environmental Super-fine fiber non-woven mask substrate using no-station pole canopy fiber opening process again, has the characteristics that attach pro-skin very well.
Description
Technical Field
The invention relates to the technical field of non-woven fabrics, in particular to an environment-friendly superfine fiber non-woven mask fabric and a manufacturing method thereof.
Background
The mask is a common facial beauty and care product, generally prepared essence is soaked by base cloth, and the mask is temporarily isolated from outside air and pollution in a short time when being laid on the face, so that sweat gland secretion and metabolism are promoted, the oxygen content of the skin is increased, products of epidermal cell metabolism and accumulated grease substances are favorably removed from the skin, meanwhile, water and care components in the mask permeate into the horny layer of the epidermis, the skin becomes soft, and the skin is naturally bright and elastic.
In the facial mask in the market at present, except for coating type facial masks such as kaolin and seaweed mud, most of the other facial masks use non-woven base fabrics, and the following three products are mainly used:
the product 1 is a non-woven mask base fabric which is formed by opening, lapping and spunlacing by using regenerated fibers such as common terylene or viscose fibers, tencel fibers, cuprammonium fibers and the like as raw materials; for example, in the Chinese invention patent 'a light high wet strength non-woven fabric and a production process and application thereof' (application number 201810060956.9), tencel fiber, viscose fiber, pearl fiber, coconut carbon fiber, bamboo charcoal fiber and other raw materials are adopted;
the product 2 is a non-woven mask base cloth formed by opening, lapping and spunlacing fibers such as real silk fibers and silk-hemp fibers, for example, in the Chinese invention patent ' a spunlace non-woven mask base cloth of silk-hemp fibers and a preparation method thereof ' (application number 201710753565.0 '), the weight content of silk-hemp fibers accounts for 10-100%, the weight content of real silk fibers accounts for 0-50%, and the materials of the rest materials are not introduced herein;
product 3, non-woven mask base cloth made of split filament superfine fiber by spun-bonding and spunlace process, for example, in the Chinese invention patent "manufacturing method of superfine fiber long fiber non-woven cloth" (application No. 201810889534.2), hollow orange petal type filament superfine fiber (one of split type superfine fiber) is obtained by melt-blowing and drafting dry PET raw material and PA6 raw material.
The three products described above have the following problems:
the product 1 has poor skin-friendly effect from the user experience in the long-term use process of the user;
2, the product has good use effect, but the raw materials are unstable and the price is too expensive;
the product 3 has good strength, but has general skin-sticking effect, large reduction rate, high cost and high price.
In order to solve the problems, the invention designs the non-woven mask base fabric which is low in cost, good in skin-friendly effect and suitable in strength to meet the market demand.
Disclosure of Invention
The invention aims to provide a novel environment-friendly superfine fiber non-woven mask base fabric and a manufacturing method thereof aiming at the defects of the existing products.
The technical purpose of the invention is realized as follows:
an environment-friendly superfine fiber non-woven mask base cloth is characterized in that: the fiber is prepared by mixing sea-island superfine short fibers and split superfine short fibers according to a certain proportion and then carrying out a spunlace process and a decrement fiber opening process.
The weight proportion of the sea-island type superfine short fiber is 10-90%, the weight proportion of the split type ultrashort fine fiber is 10-90%, and the sum of the weight proportions of the sea-island type superfine short fiber and the split type ultrashort fine fiber is 100%.
The weight proportion of the sea-island type superfine short fiber is 0-100%, the weight proportion of the split type ultrashort fine fiber is 0-100%, and the sum of the weight proportions of the sea-island type superfine short fiber and the split type ultrashort fine fiber is 100%.
The manufacturing method of the environment-friendly superfine fiber non-woven mask base cloth is characterized by comprising the following steps of:
s1, putting the sea-island superfine short fibers and the split superfine short fibers into an opener of a spunlace production line according to a certain proportion for opening and mixing, and then forming a uniform continuous fiber web through a carding machine and a lapping machine;
s2, conveying the formed fiber web to a spunlace machine set for spunlace; the middle-high pressure water needle punctures the superfine fiber nets to mutually entangle and reinforce the two superfine fiber nets, and the high pressure water mechanically opens fibers aiming at split fibers;
s3, drying and trimming the spunlaced fiber web, and then rolling to obtain the non-woven base fabric of the composite superfine fibers;
s4, the non-woven base fabric of the composite superfine fiber is subjected to a tension-free decrement fiber-opening process, so that the non-woven spunlace base fabric of the superfine fiber is reduced and completely opened;
and S5, cleaning the superfine fiber non-woven fabric subjected to fiber splitting treatment, and drying to form the environment-friendly superfine fiber non-woven mask base fabric.
In step S1, the sea-island type ultra-fine short fiber accounts for 10 to 90% by weight, and the split type ultra-short fine fiber accounts for 10 to 90% by weight.
In step S1, the sea-island type ultra-fine short fiber accounts for 0 to 100% by weight, the split type ultra-short fine fiber accounts for 0 to 100% by weight, and the sum of the weight ratios of the sea-island type ultra-fine short fiber and the split type ultra-short fine fiber accounts for 100% by weight.
In step S4, the tension-reduction-free fiber opening process is performed as follows: the non-woven base fabric is coiled on a porous hollow shaft, the whole roll is soaked in a decrement solution of a decrement container, the hollow shaft is kept still or drives the whole roll of non-woven base fabric to rotate at a low speed, the decrement solution is introduced into the hollow shaft, and the non-woven base fabric is pumped into the hollow shaft by a pressure pump after permeating into the decrement container, so that internal and external circulation is formed.
In step S5, the cleaning process is one or a combination of pressure cleaning and ultrasonic cleaning; wherein,
the pressure washing mode is that the whole roll of non-woven base cloth is soaked in the washing water of the washing container, the hollow shaft is kept still or the whole roll of non-woven base cloth is driven to rotate at a low speed, the washing water is introduced into the hollow shaft, and the non-woven base cloth is pumped into the hollow shaft by a pressure pump after penetrating into the washing container, so that internal and external circulation is formed.
In step S5, the drying process is a negative pressure drying method, a radio frequency drying method or a through-air drying method;
in the negative pressure drying method, the whole roll of the non-woven base fabric is dried in a negative pressure dryer without being unrolled;
in the radio frequency drying method, the whole roll of non-woven base fabric is dried in a radio frequency dryer without being unrolled;
in the through-air drying method, the non-woven base fabric is unwound and then dried in a hot air area of an oven under the traction of a roller.
In the step S4, the decrement solution used in the tension-free decrement fiber opening process is NaOH solution with the concentration of 20-120 g/L, the temperature in the decrement process is 90-100 ℃, the time is 20-90 minutes, and the decrement promoter is 1-5 g/L.
Compared with the prior art, the invention has the following advantages: the invention fully utilizes the characteristic difference of the physical and chemical properties of the sea-island type and the splitting type superfine short fibers in the spunlace non-woven fabric and the splitting process, utilizes the characteristic that the splitting fibers are split under the condition of high-pressure spunlace, the fibers are thin and easy to be spunlaced and tangled after splitting, and the mechanical and physical properties are excellent, utilizes the difference of alkali resistance of the sea-island superfine short fiber islands and splitting fiber polyester parts, and splits the fibers by controlling the appropriate concentration and temperature, the fineness reaches 0.05D after the sea-island type, so the invention has the characteristic of good skin-friendly adhesion, slightly peels off the anisotropic smooth and shallow surface of the splitting and thinning fibers in the splitting process to form a concave-convex frosted surface, increases the adsorption skin-friendly effect, has little change of the fiber strength, and is convenient for.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Fig. 2 is a schematic diagram of a tension-free reduction opening process.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in figure 1, the sea-island type and the split type superfine fibers are prepared according to a certain weight ratio: sea-island type ultrafine short fiber: 10-90%; 10-90% of split type ultrashort fine fiber, wherein the sum of the weight proportions of the island type ultrashort fine fiber and the split type ultrashort fine fiber is 100%. Or using either sea-island type ultra-short fiber or split type ultra-short fiber. The method comprises the steps of forming uniform fiber distribution through multiple opening and full mixing, carding the fiber into a web through a spunlace carding machine, forming a uniform cotton web through a cross lapping machine (or a semi-cross mode), carding the feeding amount according to the weight required by the product specification, controlling the weight of the fiber web, adjusting the speeds of an upper screen and a bottom curtain of the cross lapping machine, and finally adjusting the gram weight (50-100 g/m) of the fiber web2) And entering a spunlace reinforcement process through moderate drafting.
The fiber web synchronously enters a spunlace area, the fiber web penetrates through the fiber web through a medium-high pressure water needle (with the pressure of 50-90 kilograms) (a pre-spunlace stage), effective entanglement is formed between island-type fibers and split-type fibers under the mixed action of support net supporting water flow rebound and bottom negative pressure (with the pressure of 0.05-0.09 Mpa) suction, then the split fibers are subjected to fiber splitting under the mechanical physical action of high pressure water through the high-pressure water needle (with the pressure of 100-150 kilograms) (a main spunlace stage), the split fibers are further mutually entangled and crosslinked to form an organic whole with higher strength and high peel strength, and the organic whole is dried, trimmed and rolled into the non-woven base fabric coiled material of the composite superfine fibers. The method comprises the steps of subjecting a non-woven base fabric coiled material of composite superfine fibers to a sodium hydroxide solution with a certain temperature (90-100 ℃) and a certain concentration (20-120 g/L) for 20-90 minutes, adding 1-5 g/L of a decrement promoter (existing finished products obtained by outsourcing), performing full fiber opening through a tension-free decrement fiber opening process, and performing a cleaning process and a drying process to obtain the environment-friendly superfine fiber non-woven mask base fabric.
The fabric structure of the spunlace non-woven fabric is very fragile in the weight reduction process, and irreversible deformation can be generated under the condition of tension, so that the physical and mechanical properties of the original non-woven fabric in the warp and weft directions are changed, and the requirement of the product on dimensional stability cannot be ensured, and the relaxation tension-free weight reduction equipment adopted by the invention comprises the following steps: as shown in fig. 2, the non-woven base fabric 2 is rolled on the porous hollow shaft 1 (one end of the hollow shaft is closed), the hollow shaft 1 is kept static or drives the whole roll of non-woven base fabric 2 to rotate at a low speed, the decrement solution circulates inside and outside, the pressure washing or the pressure washing and ultrasonic cleaning are combined for use, the negative pressure drying method and the radio frequency drying method are adopted, the roll is finished under the condition of no external tension, the original non-woven fabric structure is kept, and the problem of size stability is well solved. Or drying by hot air through drying.
In the cleaning process, the pressure cleaning mode is that the whole roll of non-woven base cloth is soaked in the cleaning water of the cleaning container, the hollow shaft is kept static or drives the whole roll of non-woven base cloth to rotate at a low speed, the cleaning water is introduced into the hollow shaft, the non-woven base cloth permeates into the cleaning container and then is sent into the hollow shaft by a pressure pump to form internal and external circulation, and the pressure of the cleaning water flow is determined according to the thickness of the coiled material. The ultrasonic cleaning mode is that ultrasonic generator components are distributed on the bottom surface and the side wall of the cleaning container and emit ultrasonic waves to enable water flow to impact the non-woven base fabric for cleaning. In the negative pressure drying method, the whole roll of non-woven base fabric is dried in a negative pressure dryer (obtained by outsourcing) without uncoiling, superheated steam (110-150 ℃) is fed, and the time is 90-150 minutes (determined according to the thickness of the coiled material and the water content condition) under the condition that the vacuum degree is 0.02-0.08 MPa; in the radio frequency drying method, the whole roll of non-woven base fabric is dried in a radio frequency dryer (obtained by outsourcing) without being unrolled, the power is 90-220 kw, and the time is 5-20 minutes; in the through-air drying method, the non-woven base fabric is uncoiled and then dried in a hot air area of an oven (obtained by outsourcing) under the traction of a roller, the temperature is 120-150 ℃, the time is 50-150 seconds, and the vehicle speed is 30-80 m/min.
As shown in Table 1, the novel environment-friendly superfine fiber non-woven mask material meets the performance requirements of a real silk mask.
Table 1:
example 1:
an environment-friendly superfine fiber non-woven mask base fabric is manufactured according to the following method:
(1) the raw materials are mixed according to the following proportion:
A. nylon/terylene 70/30 sea-island type superfine staple fiber (nylon/terylene 70/30 represents nylon content 70%, terylene content 30%, the same representation mode below), 3D 51mm, weight ratio 10%;
B. nylon/polyester 20/80 split type superfine short fiber, 2D 51mm, the weight proportion is 90 percent;
(2) obtaining spunlace composite forming non-woven fabric with the gram weight of 60 g/square meter after opening, carding, lapping, spunlacing process, drying and rolling, wherein the spunlacing process adopts full-cross spunlacing, the width of the door is 160cm, and the spunlacing pressure of a spunlacing unit is 40, 60, 90, 100, 120 and 120 kilograms of pressure in sequence;
(3) the spun-laced composite forming non-woven fabric is reduced, and the process conditions are as follows: 40g/L of NaOH solution, 95 ℃ for 60 minutes, 2g/L of decrement accelerator,
(4) the pressure washing and the ultrasonic washing are combined for use, after NaOH and decrement accelerant are washed clean, a hot air penetration drying method is adopted, and the drying conditions are as follows: the temperature is 130 ℃, the time is 60 seconds, and the vehicle speed is 50 m/min;
(5) the finished product of the environment-friendly superfine fiber non-woven fabric mask base fabric is 40 g/square meter in gram weight and 150cm in width.
Example 2:
an environment-friendly superfine fiber non-woven mask base fabric is manufactured according to the following method:
(1) the raw materials are mixed according to the following proportion:
A. nylon/polyester 70/30 sea-island superfine short fiber, 3D 51mm, weight ratio 10%;
B. nylon/polyester 30/70 split type superfine short fiber, 2D 51mm, the weight proportion is 90 percent;
(2) obtaining the spunlaced composite forming non-woven fabric with the gram weight of 55 g/square meter after opening, carding, lapping, spunlacing process, drying and rolling, wherein the spunlacing process adopts full-cross spunlacing, the width of the door is 160cm, and the spunlacing pressure of a spunlacing unit is 40, 70, 90, 100, 110 and 130 kilograms of pressure in sequence;
(3) the spun-laced composite forming non-woven fabric is reduced, and the process conditions are as follows: 35g/L of NaOH solution, 95 ℃ for 50 minutes, 3g/L of decrement accelerator,
(4) the pressure washing and the ultrasonic washing are combined for use, after NaOH and decrement accelerant are washed clean, a hot air penetration drying method is adopted, and the drying conditions are as follows: the temperature is 130 ℃, the time is 60 seconds, and the vehicle speed is 50 m/min;
(5) the environment-friendly superfine fiber non-woven mask base cloth is obtained, and the finished product has the gram weight of 35 g/square meter and the width of 150 cm.
Example 3:
an environment-friendly superfine fiber non-woven fabric is manufactured by the following method:
(1) the raw materials are mixed according to the following proportion:
A. nylon/polyester 70/30 sea-island superfine short fiber, 3D 51mm, weight ratio 50%;
B. nylon/polyester 15/85 split type superfine short fiber, 2D 51mm, weight proportion is 50%;
(2) obtaining the spunlaced composite forming non-woven fabric with the gram weight of 60 g/square meter after opening, carding, lapping, spunlacing process, drying and rolling, wherein the spunlacing process adopts full-cross spunlacing, the width of the door is 160cm, and the spunlacing pressure of a spunlacing unit is 40, 70, 90, 100, 110 and 130 kilograms of pressure in sequence;
(3) the spun-laced composite forming non-woven fabric is reduced, and the process conditions are as follows: 25g/L of NaOH solution, 95 ℃ and 45 minutes, and 2g/L of decrement accelerator;
(4) pressure washing, namely washing NaOH and decrement promoter completely, and then performing a hot air penetration drying method, wherein the drying conditions are as follows: the temperature is 130 ℃, the time is 60 seconds, and the vehicle speed is 50 m/min;
(5) the environment-friendly superfine fiber non-woven mask base cloth is obtained, and the finished product has the gram weight of 40 g/square meter and the width of 150 cm.
Example 4:
an environment-friendly superfine fiber non-woven mask base fabric is manufactured according to the following method:
(1) the raw materials are mixed according to the following proportion:
A. nylon/polyester 70/30 sea-island superfine short fiber, 3D 51mm, weight ratio 80%;
B. nylon/polyester 20/80 split type superfine short fiber, 2D 51mm, the weight ratio is 20%;
(2) obtaining spunlaced composite forming non-woven fabric with the gram weight of 50 g/square meter after opening, carding, lapping, spunlacing process, drying and rolling, wherein the spunlacing process adopts half-cross spunlacing, the width of a door is 160cm, and the spunlacing pressure of a spunlacing unit is 40, 70, 90, 100, 110 and 100 kilograms of pressure in sequence;
(3) the spun-laced composite forming non-woven fabric is reduced, and the process conditions are as follows: NaOH solution 60g/L, temperature 95 ℃, time 30 minutes, decrement accelerator 3 g/L;
(4) the pressure washing and the ultrasonic washing are combined for use, NaOH and decrement accelerant are cleaned, a negative pressure drying method is adopted, and after hot air at 130 ℃ is fed under the negative pressure condition, the drying condition is as follows: 0.02Mpa for 95 minutes;
(5) the environment-friendly superfine fiber non-woven mask base cloth is obtained, and the finished product has the gram weight of 30 g/square meter and the width of 150 cm.
Example 5:
an environment-friendly superfine fiber non-woven mask base fabric is manufactured according to the following method:
(1) the raw materials are mixed according to the following proportion:
A. nylon/polyester 70/30 sea-island superfine short fiber, 3D 51mm, weight ratio 90%;
B. nylon/polyester 20/80 split type superfine short fiber, 2D 51mm, the weight ratio is 10%;
(2) obtaining spunlaced composite forming non-woven fabric with the gram weight of 50 g/square meter after opening, carding, lapping, spunlacing process, drying and rolling, wherein the spunlacing process adopts full-cross spunlacing, the width of the door is 160cm, and the spunlacing pressure of a spunlacing unit is 50 kg, 70 kg, 90 kg, 100 kg, 110 kg and 120 kg in sequence;
(3) the spun-laced composite forming non-woven fabric is reduced, and the process conditions are as follows: NaOH solution 20g/L, temperature 100 deg.C, time 30 minutes, decrement accelerator 4.5 g/L;
(4) pressure washing, namely, after the NaOH and the decrement accelerant are cleaned, drying by a radio frequency drying method, wherein the drying conditions are as follows: the radio frequency power is 200kW, and the time is 10 minutes;
(5) the environment-friendly superfine fiber non-woven mask base cloth is obtained, and the finished product has the gram weight of 35 g/square meter and the width of 150 cm.
Example 6:
an environment-friendly superfine fiber non-woven mask base fabric is manufactured according to the following method:
(1) the raw materials are mixed according to the following proportion:
A. nylon/polyester 70/30 sea-island superfine short fiber, 3D 51mm, weight ratio 20%;
B. nylon/polyester 15/85 split type superfine short fiber, 2D 51mm, weight proportion 80%;
(2) obtaining spunlace composite forming non-woven fabric with the gram weight of 70 g/square meter after opening, carding, lapping, spunlacing process, drying and rolling, wherein the spunlacing process adopts half-cross spunlacing, the width of the door is 160cm, and the spunlacing pressure of a spunlacing unit is 50 kg, 70 kg, 90 kg, 100 kg, 110 kg and 120 kg in sequence;
(3) the spun-laced composite forming non-woven fabric is reduced, and the process conditions are as follows: 80g/L of NaOH solution, 90 ℃, 20 minutes and 2.5g/L of decrement accelerator;
(4) the pressure washing and the ultrasonic washing are combined for use, after NaOH and decrement accelerant are washed clean, drying is carried out by a hot air penetration drying method, and the drying conditions are as follows: the temperature is 110 ℃, the time is 75 seconds, and the vehicle speed is 40 m/min;
(5) the environment-friendly superfine fiber non-woven mask base cloth is obtained, and the finished product has the gram weight of 45 g/square meter and the width of 150 cm.
The invention fully utilizes the characteristic difference of various physical and chemical properties of the sea-island type and split type superfine fibers in a spunlace non-woven fabric process and a tension-free fiber opening process, correspondingly reduces the decrement proportion under the condition of meeting the skin-friendly requirement of the mask, is energy-saving and environment-friendly, and has better economic benefit and social benefit.
The above description is only a preferred embodiment of the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An environment-friendly superfine fiber non-woven mask base cloth is characterized in that: the fiber is prepared by mixing sea-island superfine short fibers and split superfine short fibers according to a certain proportion and then carrying out a spunlace process and a decrement fiber opening process.
2. The environment-friendly superfine fiber non-woven mask base cloth according to claim 1, which is characterized in that: the weight proportion of the sea-island type superfine short fiber is 10-90%, the weight proportion of the split type ultrashort fine fiber is 10-90%, and the sum of the weight proportions of the sea-island type superfine short fiber and the split type ultrashort fine fiber is 100%.
3. The environment-friendly superfine fiber non-woven mask base cloth according to claim 1, which is characterized in that: the weight proportion of the sea-island type superfine short fiber is 0-100%, the weight proportion of the split type ultrashort fine fiber is 0-100%, and the sum of the weight proportions of the sea-island type superfine short fiber and the split type ultrashort fine fiber is 100%.
4. A method for manufacturing the environment-friendly microfiber nonwoven mask base fabric according to claim 1, comprising the steps of:
s1, putting the sea-island superfine short fibers and the split superfine short fibers into an opener of a spunlace production line according to a certain proportion for opening and mixing, and then forming a uniform continuous fiber web through a carding machine and a lapping machine;
s2, conveying the formed fiber web to a spunlace machine set for spunlace; the middle-high pressure water needle punctures the superfine fiber nets to mutually entangle and reinforce the two superfine fiber nets, and the high pressure water mechanically opens fibers aiming at split fibers;
s3, drying and trimming the spunlaced fiber web, and then rolling to obtain the non-woven base fabric of the composite superfine fibers;
s4, the non-woven base fabric of the composite superfine fiber is subjected to a tension-free decrement fiber-opening process, so that the non-woven spunlace base fabric of the superfine fiber is reduced and completely opened;
and S5, cleaning the superfine fiber non-woven fabric subjected to fiber splitting treatment, and drying to form the environment-friendly superfine fiber non-woven mask base fabric.
5. The method for manufacturing the environment-friendly superfine fiber non-woven mask base cloth according to claim 4, wherein the method comprises the following steps: in step S1, the sea-island type ultra-fine short fiber accounts for 10 to 90% by weight, and the split type ultra-short fine fiber accounts for 10 to 90% by weight.
6. The environment-friendly superfine fiber non-woven mask base cloth according to claim 1, which is characterized in that: the weight proportion of the sea-island type superfine short fiber is 0-100%, the weight proportion of the split type ultrashort fine fiber is 0-100%, and the sum of the weight proportions of the sea-island type superfine short fiber and the split type ultrashort fine fiber is 100%.
7. The method for manufacturing the environment-friendly superfine fiber non-woven mask base cloth according to claim 4, wherein the method comprises the following steps: in step S4, the tension-reduction-free fiber opening process is performed as follows: the non-woven base cloth (2) is coiled on a porous hollow shaft (1), the whole roll is soaked in a decrement solution in a decrement container, the hollow shaft is kept static or drives the whole roll of non-woven base cloth to rotate at a low speed, the decrement solution is introduced into the hollow shaft, and the non-woven base cloth permeates into the decrement container and then is sent into the hollow shaft by a pressure pump to form internal and external circulation.
8. The method for manufacturing the environment-friendly superfine fiber non-woven mask base cloth according to claim 4, wherein the method comprises the following steps: in step S5, the cleaning process is one or a combination of pressure cleaning and ultrasonic cleaning; wherein,
the pressure washing mode is that the whole roll of non-woven base cloth is soaked in the washing water of the washing container, the hollow shaft is kept still or the whole roll of non-woven base cloth is driven to rotate at a low speed, the washing water is introduced into the hollow shaft, and the non-woven base cloth is pumped into the hollow shaft by a pressure pump after penetrating into the washing container, so that internal and external circulation is formed.
9. The method for manufacturing the environment-friendly superfine fiber non-woven mask base cloth according to claim 4, wherein the method comprises the following steps: in step S5, the drying process is a negative pressure drying method, a radio frequency drying method or a through-air drying method;
in the negative pressure drying method, the whole roll of the non-woven base fabric is dried in a negative pressure dryer without being unrolled;
in the radio frequency drying method, the whole roll of non-woven base fabric is dried in a radio frequency dryer without being unrolled;
in the through-air drying method, the non-woven base fabric is unwound and then dried in a hot air area of an oven under the traction of a roller.
10. The method for manufacturing the environment-friendly superfine fiber non-woven mask base cloth according to claim 4 or 7, characterized in that: in the step S4, the decrement solution used in the tension-free decrement fiber opening process is NaOH solution with the concentration of 20-120 g/L, the temperature in the decrement process is 90-100 ℃, the time is 20-90 minutes, and the decrement promoter is 1-5 g/L.
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Application publication date: 20190507 |