CN112267207A - Production method of front-bleaching high-speed high-yield all-cotton spunlaced non-woven fabric - Google Patents
Production method of front-bleaching high-speed high-yield all-cotton spunlaced non-woven fabric Download PDFInfo
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- CN112267207A CN112267207A CN202011159933.7A CN202011159933A CN112267207A CN 112267207 A CN112267207 A CN 112267207A CN 202011159933 A CN202011159933 A CN 202011159933A CN 112267207 A CN112267207 A CN 112267207A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/13—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using inorganic agents
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a method for producing a pre-bleaching high-speed high-yield all-cotton spunlaced non-woven fabric, which comprises a raw cotton degreasing bleaching process and a spunlaced non-woven fabric production process, wherein the raw cotton degreasing bleaching process comprises the steps of opening, combing, cake making, degreasing bleaching, dewatering, wet opening, drying, packaging and the like which are sequentially carried out, the spunlaced non-woven fabric production process uses the degreased bleaching cotton prepared by the raw cotton degreasing bleaching process to produce the spunlaced non-woven fabric and comprises the working procedures of opening, mixing, carding, web forming, spunlacing, drying, rolling, cutting and the like which are sequentially carried out, the invention has the beneficial effects that firstly, the raw cotton is made into the degreased bleaching all-cotton through the degreasing bleaching process, then, the degreased bleaching all-cotton is made into the spunlaced non-woven fabric, and in the production process, the advantages of wide breadth, fast speed, high yield, few neps, good product quality and the like are achieved, the production efficiency is improved, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of spunlace nonwoven fabric production, in particular to a production method of a front-doffing and bleaching high-speed high-yield all-cotton spunlace nonwoven fabric.
Background
The spunlace nonwoven fabric is formed by jetting high-pressure micro water flow onto one or more layers of fiber webs to enable the fibers to be mutually entangled, so that the fiber webs are reinforced and have certain strength, and the obtained fabric is the spunlace nonwoven fabric.
The fiber raw materials are wide in source, and can be terylene, chinlon, polypropylene fiber, viscose fiber, chitin fiber, superfine fiber, tencel, silk, bamboo fiber, wood pulp fiber, seaweed fiber and the like, and the all-cotton spunlace non-woven fabric made of natural cotton fiber has the characteristics of soft hand feeling, fluffiness and high hygroscopicity, and can be used for processing and producing products such as operation cover cloth, medical binding material, wound dressing, medical gauze, aviation cleaning cloth, clothing lining base cloth, coating base cloth, high-grade cleaning cloth of instruments and meters, high-grade cleaning cloth in the electronic industry and the like.
The existing production process of the all-cotton spunlace non-woven fabric has the advantages of low production speed, narrow breadth, low productivity, high labor cost and low working efficiency, so that the production cost of the all-cotton spunlace non-woven fabric is high.
Disclosure of Invention
In order to solve the problems, the invention provides a method for producing a front-bleaching high-speed high-yield all-cotton spunlaced non-woven fabric, which is realized by the following technical scheme.
A production method of a front-doffing-bleaching high-speed high-yield all-cotton spunlaced non-woven fabric comprises a raw cotton degreasing bleaching process and a spunlaced non-woven fabric production process;
the raw cotton degreasing bleaching process comprises the following steps of:
s1: opening: opening and scotching raw cotton, and removing impurities in the raw cotton;
s2: combing: carding the opened raw cotton fibers by using a carding machine;
s3: cake making: compressing the cotton fibers straightened by the carding machine into cotton cakes;
s4: degreasing and bleaching: degreasing and bleaching the compressed cotton cakes by using degreasing and bleaching liquid;
s5: and (3) dehydrating: spin-drying and dewatering the degreased and floated cotton cakes in a dewatering machine so as to throw out degreased and floated cotton cakes;
s6: wet opening: wet opening the dewatered cotton cake, washing the cotton fiber with water, and further cleaning the degreasing bleaching solution in the cotton fiber;
s7: drying: drying the cotton cakes washed by the wet boiled water;
s8: packaging: packaging the dried cotton cakes;
the production process of the spunlace non-woven fabric is to process raw cotton subjected to the degreasing and bleaching process into the spunlace non-woven fabric, and comprises the following steps:
1): opening and mixing: taking out the packed cotton cakes, and opening the cotton cakes to ensure that the degreased floating cotton is in a sufficient mixed state;
2): carding: carding the loosened degreased bleaching cotton by a carding machine;
3): forming a net: processing the straightened degreased floating in a carding machine into a fiber web;
4): and (3) water jetting: sending the fiber web in the step S3 into a spunlace machine, and carrying out spunlace processing on the fiber web by using the spunlace machine, thereby forming a spunlace non-woven fabric;
5): drying: drying the formed non-woven fabric;
6): coiling: winding the dried non-woven fabric on a winding roller;
7): slitting: and cutting the rolled non-woven fabric according to the required size.
Further, the main components of the degreasing bleaching liquid are NaOH and H2O2。
Further, the NaOH and H2O2The mass percentage of the degreasing bleaching liquid is 60-70%.
Further, the drying method in step S7 is cylinder drying, that is, the cotton cake after washing with wet boiled water is placed in a closed drying cylinder, and then hot air circulating flows into the box drying cylinder.
Further, when the drying process in the step 5) is performed, vacuum suction treatment is simultaneously performed on the formed spunlace nonwoven fabric, and hot air is supplied to the formed spunlace nonwoven fabric by using a hot air recovery system of a drying device while the vacuum suction treatment is performed, so that the spunlace nonwoven fabric is dried.
Further, in step S6, the cotton cake is washed with water at normal temperature for 1-2 times, and the water consumption for each washing is 1-1.5 times of the weight of the cotton cake.
Furthermore, the carding machine is a novel multi-roller double-comb straight-laying carding machine.
Further, in step S7, the moisture content of the dried cotton cake is 6% -8%.
The invention has the beneficial effects that before the production of the all-cotton spunlace non-woven fabric, the raw cotton is firstly made into the degreased bleaching all-cotton through the degreased bleaching process, then the degreased bleaching all-cotton is utilized to open and mix the cotton, the high-speed mixed net is formed, then the spunlace entanglement is carried out, and the drying, coiling and cutting are carried out; and can effectively reduce the labor cost, improve the production efficiency, reduce the production cost and greatly improve the market competitiveness of the product.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.
FIG. 1: the invention relates to a process flow chart of a production method of a front-bleaching high-speed high-yield all-cotton spunlace non-woven fabric.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figure 1, a method for producing a pre-bleaching high-speed high-yield all-cotton spunlaced non-woven fabric, which comprises a raw cotton degreasing bleaching process and a spunlaced non-woven fabric production process;
the degreasing and bleaching process of the raw cotton comprises the following steps in sequence:
s1: opening: opening and scotching raw cotton, and removing impurities in the raw cotton;
s2: combing: carding the opened raw cotton fibers by using a carding machine;
the carding machine is a novel multi-roller double-comb straight-laying carding machine.
S3: cake making: compressing the cotton fibers straightened by the carding machine into cotton cakes;
s4: degreasing and bleaching:
degreasing and bleaching the compressed cotton cakes by using degreasing and bleaching liquid; the degreasing bleaching liquid mainly comprises NaOH and H2O2Adding NaOH and H2O2Putting the cotton cakes pressed in the step S3 into the degreasing bleaching solution to be fully soaked, and stirring the cotton cakes by using a stirring rod in the soaking process so as to fully soak the cotton cakes, wherein the soaking time is not less than 1 hour, NaOH and H are added2O2The mass percentage of the degreasing bleaching liquid is 60-70 percent, namely NaOH and H are added during preparation2O2The total volume of the degreasing bleaching liquid is 60 to 70 percent of the total volume of the degreasing bleaching liquid, and H2O2And the volume ratio of NaOH is 2: 1.
S5: and (3) dehydrating: spin-drying and dewatering the degreased and floated cotton cakes in a dewatering machine so as to throw out degreased and floated cotton cakes;
s6: wet opening: wet opening the dewatered cotton cake, washing the cotton fiber with water, and further cleaning the degreasing bleaching solution in the cotton fiber;
in the dewatering process, a spin dryer is generally adopted for spin-drying and dewatering, so that dewatered cotton cakes are wrinkled into a group, the wet opening process can recover the wrinkled cotton cakes, meanwhile, the cotton cakes can be cleaned, and the degreasing bleaching liquid remained in the cotton cakes after dewatering is cleaned.
In the cleaning process, normal-temperature water is adopted for cleaning for 1-2 times, the normal-temperature water does not need to carry out special heating or cooling treatment on water, conventional tap water can be used immediately, the cleaning operation can be realized by the water within the conventional temperature range, and in order to ensure that water resources are not wasted when the cotton cakes are cleaned, the weight of the cleaning water is 1-1.5 times of the total weight of all the cotton cakes to be cleaned.
S7: drying: drying the cotton cakes washed by the wet boiled water;
the method comprises the steps of drying cotton cakes by adopting a cylinder drying mode, namely putting the cotton cakes which are washed and wet to be opened into a closed drying cylinder, introducing hot air which circularly flows into the drying cylinder, drying moisture in the cotton cakes by the hot air in the flowing process, inserting a hygrometer into the cotton cakes to measure the moisture content during drying, finishing drying when the moisture content in the cotton cakes is between 6 and 8 percent, and taking out the dried cotton cakes.
S8: packaging: packaging the dried cotton cakes;
the production process of the spunlace non-woven fabric is to process raw cotton subjected to the degreasing and bleaching process into the spunlace non-woven fabric, and comprises the following steps:
1): opening and mixing: taking out the packed cotton cakes, and opening the cotton cakes to ensure that the degreased floating cotton is in a sufficient mixed state;
2): carding: carding the loosened degreased bleaching cotton by a carding machine;
the carding machine is a novel multi-roller double-comb straight-laying carding machine.
3): forming a net: processing the straightened degreased floating in a carding machine into a fiber web;
4): and (3) water jetting: sending the fiber web in the step S3 into a spunlace machine, and carrying out spunlace processing on the fiber web by using the spunlace machine, thereby forming a spunlace non-woven fabric;
5): drying: drying the formed non-woven fabric;
when drying the fashioned non-woven fabrics, use the vacuum pump to carry out vacuum suction to the non-woven fabrics in step and handle, utilize drying equipment's hot-blast recovery system to carry hot-blastly to the water thorn non-woven fabrics after the shaping to dry the water thorn non-woven fabrics, vacuum suction and stoving go on simultaneously, can in time discharge the vapor that produces when drying, thereby accelerate the drying rate of the water thorn non-woven fabrics after the shaping.
6): coiling: winding the dried non-woven fabric on a winding roller;
7): slitting: and cutting the rolled non-woven fabric according to the required size.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A production method of a front-bleaching high-speed high-yield all-cotton spunlace non-woven fabric is characterized by comprising the following steps: the method comprises a raw cotton degreasing bleaching process and a spunlace non-woven fabric production process;
the raw cotton degreasing bleaching process comprises the following steps of:
s1: opening: opening and scotching raw cotton, and removing impurities in the raw cotton;
s2: combing: carding the opened raw cotton fibers by using a carding machine;
s3: cake making: compressing the cotton fibers straightened by the carding machine into cotton cakes;
s4: degreasing and bleaching: degreasing and bleaching the compressed cotton cakes by using degreasing and bleaching liquid;
s5: and (3) dehydrating: spin-drying and dewatering the degreased and floated cotton cakes in a dewatering machine so as to throw out degreased and floated cotton cakes;
s6: wet opening: wet opening the dewatered cotton cake, washing the cotton fiber with water, and further cleaning the degreasing bleaching solution in the cotton fiber;
s7: drying: drying the cotton cakes washed by the wet boiled water;
s8: packaging: packaging the dried cotton cakes;
the production process of the spunlace non-woven fabric is to process raw cotton subjected to the degreasing and bleaching process into the spunlace non-woven fabric, and comprises the following steps:
1): opening and mixing: taking out the packed cotton cakes, and opening the cotton cakes to ensure that the degreased floating cotton is in a sufficient mixed state;
2): carding: carding the loosened degreased bleaching cotton by a carding machine;
3): forming a net: processing the straightened degreased floating in a carding machine into a fiber web;
4): and (3) water jetting: sending the fiber web in the step S3 into a spunlace machine, and carrying out spunlace processing on the fiber web by using the spunlace machine, thereby forming a spunlace non-woven fabric;
5): drying: drying the formed non-woven fabric;
6): coiling: winding the dried non-woven fabric on a winding roller;
7): slitting: and cutting the rolled non-woven fabric according to the required size.
2. The method for producing the pre-bleaching high-speed high-yield all-cotton spunlace nonwoven fabric according to claim 1, which is characterized in that: the main components of the degreasing bleaching liquid are NaOH and H2O 2.
3. The method for producing the pre-bleaching high-speed high-yield all-cotton spunlace nonwoven fabric according to claim 2, which is characterized in that: the NaOH and H2O2The mass percentage of the degreasing bleaching liquid is 60-70%.
4. The method for producing the pre-bleaching high-speed high-yield all-cotton spunlace nonwoven fabric according to claim 1, which is characterized in that: the drying method in the step S7 is cylinder drying, namely, the cotton cake after being washed by the wet boiled water is placed in a closed drying cylinder, and then hot air which circularly flows is introduced into a box drying cylinder.
5. The method for producing the pre-bleaching high-speed high-yield all-cotton spunlace nonwoven fabric according to claim 1, which is characterized in that: and 5) when the drying process in the step 5) is carried out, carrying out vacuum suction treatment on the formed spunlace non-woven fabric, and conveying hot air to the formed spunlace non-woven fabric by using a hot air recovery system of a drying device while carrying out vacuum suction treatment, so as to dry the spunlace non-woven fabric.
6. The method for producing the pre-bleaching high-speed high-yield all-cotton spunlace nonwoven fabric according to claim 1, which is characterized in that: in step S6, the cotton cake is washed with water at normal temperature for 1-2 times, and the water consumption of each washing is 1-1.5 times of the weight of the cotton cake.
7. The method for producing the pre-bleaching high-speed high-yield all-cotton spunlace nonwoven fabric according to claim 1, which is characterized in that: the carding machine is a novel multi-roller high-speed disorderly double-carding straight-laying carding machine.
8. The method for producing the pre-bleaching high-speed high-yield all-cotton spunlace nonwoven fabric according to claim 1, which is characterized in that: in step S7, the water content of the dried cotton cake is 6-8%.
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| CN202011159933.7A CN112267207A (en) | 2020-10-26 | 2020-10-26 | Production method of front-bleaching high-speed high-yield all-cotton spunlaced non-woven fabric |
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Cited By (4)
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| CN113529270A (en) * | 2021-07-06 | 2021-10-22 | 稳健医疗(武汉)有限公司 | Light and thin water-absorbing mercerized all-cotton non-woven fabric, preparation method and application thereof and disposable clothing |
| CN113584876A (en) * | 2021-07-08 | 2021-11-02 | 稳健医疗(武汉)有限公司 | High-strength high-moisture-absorption all-cotton non-woven fabric and preparation method thereof |
| CN113862842A (en) * | 2021-11-01 | 2021-12-31 | 芜湖银山无纺布有限公司 | Production process of pre-degreased spunlace non-woven fabric |
| CN114086316A (en) * | 2021-11-29 | 2022-02-25 | 湖北欣柔卫生用品股份有限公司 | Dry and comfortable all-cotton spunlaced non-woven fabric |
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| CN114086316A (en) * | 2021-11-29 | 2022-02-25 | 湖北欣柔卫生用品股份有限公司 | Dry and comfortable all-cotton spunlaced non-woven fabric |
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Application publication date: 20210126 |
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