CN114657683A - Production process of knitted fabric with waterproof, oil-proof and antifouling surface layer and water-absorbing inner layer - Google Patents
Production process of knitted fabric with waterproof, oil-proof and antifouling surface layer and water-absorbing inner layer Download PDFInfo
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- CN114657683A CN114657683A CN202210154969.9A CN202210154969A CN114657683A CN 114657683 A CN114657683 A CN 114657683A CN 202210154969 A CN202210154969 A CN 202210154969A CN 114657683 A CN114657683 A CN 114657683A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Knitting Of Fabric (AREA)
Abstract
The invention discloses a production process of a knitted fabric with a surface layer waterproof, oil-proof and antifouling and a water-absorbing inner layer, which comprises the following steps: spinning, namely spinning cotton fibers into yarns for the surface layer by using a compact spinning mode, spinning modal fibers after the dope is colored into yarns for the inner layer by using a compact spinning mode, and spinning elastic fibers into yarns for the middle layer; a spooling step, namely spooling the surface layer by using yarns and the inner layer by using yarns; dyeing, namely dyeing the wound surface layer with yarns; a finishing step, performing water repellent finishing on the dyed surface layer by using yarns, and performing water absorption finishing on the lining layer by using yarns; a drying step, drying the surface layer yarn and the inner layer yarn and spooling; weaving, after drying, weaving the surface layer with yarns and spandex, weaving the lining layer with yarns and spandex, and connecting the surface layer with the lining layer with the middle layer with yarns; and a shaping step, namely sequentially pre-shaping and shaping the woven fabric.
Description
Technical Field
The invention relates to the technical field of textiles, in particular to a production process of a knitted fabric with a waterproof, oil-proof and antifouling surface layer and a water-absorbing inner layer.
Background
In the field of current textiles, the main functions of waterproof breathable fabrics are: waterproof, moisture permeable, breathable, insulating, windproof and warm-keeping. In terms of manufacturing process, the technical requirements of the waterproof breathable fabric are much higher than that of the common waterproof fabric; meanwhile, from the quality, the waterproof breathable fabric also has the functional characteristics which are not possessed by other waterproof fabrics.
However, the conventional clothes with moisture absorption and sweat releasing functions mainly use terylene, and the wearing comfort level is poor. When the fabric is processed, the fabric is added into a size box of a setting machine, the method is adopted to realize that the two surfaces of the fabric have the waterproof, oilproof and antifouling performances, if the inner layer of the garment is hydrophobic, sweat cannot be absorbed and removed by the garment in time when a human body sweats, and the experience of the inner layer skin-sticking surface of the garment is poor. In addition, in the market, a water-proof, oil-proof and anti-fouling assistant is added into printing paste in a printing coating mode to achieve the purpose that only one surface of the fabric has an anti-fouling effect, but the fabric processed by the mode is hard in hand feeling and uncomfortable.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a production process of the knitted fabric with the surface layer waterproof, oil-proof and antifouling and the inner layer water absorption layer, and the knitted fabric with the surface layer waterproof, oil-proof and antifouling and the inner layer water absorption layer can be produced into the knitted fabric with excellent waterproof performance and sweat absorption performance, high strength and good washing fastness.
The production process of the knitted fabric with the waterproof, oil-proof and stain-proof surface layer and the water-absorbing inner layer comprises the following steps of: spinning, namely spinning cotton fibers into yarns for the surface layer by using a compact spinning mode, spinning modal fibers after the dope is colored into yarns for the inner layer by using a compact spinning mode, and spinning elastic fibers into yarns for the middle layer; a spooling step, namely spooling the surface layer by using yarns and the inner layer by using yarns; dyeing, namely dyeing the wound surface layer with yarns; a finishing step, performing water repellent finishing on the dyed surface layer by using yarns, and performing water absorption finishing on the lining layer by using yarns; a drying step, drying the surface layer yarn and the inner layer yarn and spooling; weaving, after drying, weaving the surface layer with yarns and spandex, weaving the lining layer with yarns and spandex, and connecting the surface layer with the lining layer with the middle layer with yarns; and a shaping step, namely sequentially pre-shaping and shaping the woven fabric.
According to some embodiments of the invention, polyurethane fibers are used as the elastic fibers during the spinning step.
According to some embodiments of the present invention, in the spinning step, the yarn number of the face layer yarn is 40S-60S, and the negative pressure of the condensing fan used for spinning the cotton fiber into the face layer yarn by using the compact spinning method is 2000-2500 Pa.
According to some embodiments of the invention, the yarn number of the yarns for the inner layer is 30S-60S, the yarn twist coefficient is 330-340, and the negative pressure of a collecting blower used when the modal fibers after the dope dyeing are spun into the yarns for the inner layer by using a compact spinning mode is 2100-2500 Pa.
According to some embodiments of the invention, the linear density of the polyurethane fibers in the yarns for the face layer and the yarns for the inner layer is 20 to 40D, and the linear density of the polyurethane fibers in the yarns for the middle layer is 30 to 70D.
According to some embodiments of the invention, the wound density of the cheese during the winding step is between 0.23 and 0.29g/cm3The yarn weight was 0.95 kg/piece.
According to some embodiments of the present invention, the dyeing bath ratio is 1:4 to 1:11 during the dyeing step, the dyeing temperature is 60 ℃, and the dye is controlled to be added within 20 minutes.
According to some embodiments of the present invention, in the dyeing step, after the dye is added, the anhydrous sodium sulphate and the soda ash are sequentially added, and then the temperature rise rate is controlled to be below 0.5 ℃/min.
According to some embodiments of the invention, during the dyeing step, the anhydrous sodium sulphate and the sodium carbonate are added respectively in 3 times, and the dyeing agent is always kept in a mode of forward rotation for 3-5min and reverse rotation for 2-4min and the forward rotation time is longer than the reverse rotation time in the whole dyeing step.
According to some embodiments of the invention, in the finishing step, 80-110g/L of functional waterproof auxiliary agent and 20-30g/L of cross-linking agent are added into a dye vat, the operation is carried out for 30min to carry out water repellent finishing on the yarns for the surface layer, meanwhile, after the yarns for the inner layer are subjected to pretreatment and oil removal, the yarns are placed into the dye vat and added with 20g/L of hydrophilic soft oil, and the operation is carried out for 30min to carry out water absorption finishing on the yarns for the inner layer.
According to some embodiments of the invention, in the weaving step, a weft knitting double-sided machine is adopted for weaving, the dried surface layer is woven on the surface layer by using yarns and spandex, the dried inner layer is woven on the inner layer by using yarns and spandex, and the middle layer is connected with the surface layer and the inner layer by using middle layer yarns.
According to some embodiments of the present invention, during the weaving step, the loop length of spandex yarn used is 110-150 mm/100G.
According to some embodiments of the invention, in the step of setting, the woven fabric is pre-set and then set by a setting machine, wherein the setting temperature is 200-: 25-30 m/min; the setting temperature is 140-: 20-25 m/min.
The invention also discloses a fabric produced by the production process of the knitted fabric with the waterproof, oil-proof and antifouling surface layer and the water-absorbing inner layer.
The knitted fabric produced by applying the production process of the knitted fabric with the surface layer, the waterproof layer, the oil-proof layer and the antifouling layer and absorbing water comprises a surface layer, a middle layer and an inner layer. The surface layer is formed by weaving surface layer yarns with water-proof, oil-proof and antifouling functions, the lining layer is formed by weaving lining yarns with good water absorption, the middle layer is formed by elastic fibers, and the surface layer and the lining layer are connected through the middle layer. The fabric can better resist stains stained in the wearing process of the garment, keeps the garment clean, and meanwhile, the water absorption performance of the inner layer can quickly absorb sweat of a body and guide the sweat out of the fabric, so that the skin surface is dry and comfortable, and the fabric has better moisture absorption and sweat releasing functions and is beneficial to body health; meanwhile, due to the use of spandex in the middle layer, the fabric has high strength and good washability.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
In the description of the present invention, it is to be understood that the positional descriptions, such as the upper, lower, front, rear, left, right, etc., referred to as the positional or positional relationships are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present numbers, and larger, smaller, inner, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
The production process of the knitted fabric with the waterproof, oil-proof and stain-proof surface layer and the water-absorbing inner layer comprises the following steps of: spinning, namely spinning cotton fibers into yarns for the surface layer by using a compact spinning mode, spinning modal fibers after the dope is colored into yarns for the inner layer by using a compact spinning mode, and spinning elastic fibers into yarns for the middle layer; a spooling step, namely spooling the surface layer by using yarns and the inner layer by using yarns; a dyeing step, namely dyeing the yarn for the surface layer after spooling; a finishing step, performing water repellent finishing on the dyed surface layer by using yarns, and performing water absorption finishing on the lining layer by using yarns; a drying step, drying all yarns; weaving, namely weaving the surface layer with yarns and spandex, weaving the lining layer with yarns and spandex, and connecting the surface layer with the lining layer with the middle layer with yarns; and a shaping step, namely sequentially pre-shaping and shaping the woven fabric.
The knitted fabric produced by applying the production process of the knitted fabric with the surface layer, the waterproof layer, the oil-proof layer and the antifouling layer and absorbing water comprises a surface layer, a middle layer and an inner layer. The surface layer is formed by weaving surface layers with waterproof, oilproof and antifouling functions by using yarns, the lining layer is formed by weaving lining layers with good water absorption by using yarns, then the middle layer is formed by elastic fibers, and the surface layer and the lining layer are connected by the middle layer at the same time. The fabric can better resist stains stained in the wearing process of the garment, keeps the garment clean, and meanwhile, the water absorption performance of the inner layer can quickly absorb sweat of a body and guide the sweat out of the fabric, so that the skin surface is dry and comfortable, and the fabric has better moisture absorption and sweat releasing functions and is beneficial to body health; meanwhile, due to the use of the spandex in the middle layer, the fabric is high in strength and good in washing fastness.
Specifically, polyurethane fibers are used as the elastic fibers.
In the spinning step, the cotton fiber is spun into the yarns for the surface layer by using a compact spinning mode, the yarn number is 40S-60S, and the yarn twisting coefficient is 330-340; the negative pressure of the gathering fan used in spinning is 2000-2500 Pa; spinning the modal fiber dyed by the stock solution into yarns for the inner layer in a compact spinning mode, wherein the yarn number of the yarns for the inner layer is 30S-60S, the yarn twist coefficient is 330-2500 Pa, and the negative pressure of a collecting fan used when the modal fiber dyed by the stock solution is spun into the yarns for the inner layer in the compact spinning mode is 2100-2500 Pa; among the yarns for the surface layer and the yarns for the inner layer, the linear density of the polyurethane fibers in the yarns for the middle layer is 30-70D.
Specifically, when spinning, the twist coefficient and the negative pressure are as low as possible, so that the spun yarn is fluffy, the gaps between fibers are large, and the yarn diameter is at least 10% larger than that of the yarn under the condition of the same linear density. Thus being beneficial to the subsequent processing, the permeability of the chemical auxiliary agent and the dye is good, the color absorption of the yarn is uniform, and the functional auxiliary agent is uniformly covered on the surface of the fiber.
After spinning, a yarn dyeing step is required, which comprises the following working procedures of spooling, dyeing, finishing and drying in sequence; while the yarns for the inner layer adopt indigo modal fibers which are already dyed by stock solution during spinning; therefore, the inner layer of yarn only needs to be wound, and dyeing is not needed.
In the step of spooling, the density and the yarn length of the yarn for the surface layer on the bobbin need to be strictly controlled, the bobbin needs to be loose, and the yarn winding density needs to be uniform; the winding density of the cheese is 0.23-0.29g/cm3The optimum winding density is 0.26g/cm3The yarn weight is 0.95 kg/yarn; improper control of the spooling process easily causes the condition of different tightness of yarn drums, which is not favorable for dyeing uniformity and produces inner and outer layer colored yarns.
After the surface layer is wound by yarns, the dyeing step is carried out, and the surface layer yarns are pretreated by adopting an oxygen bleaching mode; dyeing the yarn after the pretreatment, wherein the dye bath is 1:4-1:11, and the dyeing temperature is 60 ℃; adding the anhydrous sodium sulphate for 3 times within 20min, adding the anhydrous sodium sulphate, adding the sodium carbonate for 3 times, heating after adding the auxiliary agent, and controlling the heating rate at 0.5 ℃/min. The mode of adding salt and alkali for multiple times is adopted, and the dyeing temperature rise rate is strictly controlled, so that the dyeing uniformity is facilitated, and the phenomena of dyeing flowers and the like are reduced. During dyeing, the dyeing machine always keeps the mode of forward rotation for 3-5min and reverse rotation for 2-4min, and the forward rotation time is longer than the reverse rotation time for cyclic operation, preferably forward rotation for 3min and reverse rotation for 2min, reasonably controls the time proportion of forward circulation and reverse circulation of the dye liquor, and reduces the color difference of the inner layer and the outer layer of the yarn cylinder; the flow and the pressure of the dye liquor are large, which is beneficial to penetration and level dyeing of the dye liquor. Therefore, the flow rate of the circulating pump is 30-50L/kg.min; the pressure head water column of the pump is 15-18 m.
Wherein, the dye bath ratio is most preferably 1:6, the excessive bath ratio can cause water waste, the too small bath ratio can affect the dyeing effect, so in order to ensure the dyeing effect and simultaneously reduce the water consumption as much as possible, the dye bath is preferably controlled to be 1:4-1:11, and the most preferably 1: 6; the addition of the anhydrous sodium sulphate needs to divide the total amount into 3 parts, and the addition is carried out once every 5 minutes, and the addition of the calcined soda is also carried out by dividing the total amount into three parts, and the addition is carried out once every 10 minutes; the dye needs a high-temperature environment when being dyed on a cloth cover, but the temperature is too high, the dyeing speed is too fast, the dyeing is easy to be uneven, and the problem of dyeing is caused, so the temperature rise rate is controlled to be 0.5 ℃/min.
The finishing step is divided into two parts, namely water repellent finishing is carried out on the yarns for the surface layer and water absorption finishing is carried out on the yarns for the inner layer; in the water repellent finishing part, after the surface layer is dyed by yarn, 80-110g/L of functional waterproof auxiliary agent and 20-30g/L of cross-linking agent are added into a dye vat and run for 30 min. After the auxiliary agent is added into the dye vat, the dye vat still adopts a dye liquor running mode, and the auxiliary agent in the yarn cylinder is ensured to fully and uniformly reach the surface layer of the fiber; the waterproof auxiliary agent has the functions of preventing water, oil and dirt, and the cross-linking agent is matched with the auxiliary agent, so that the performance of the waterproof auxiliary agent fixed on the fabric is improved, and the washing fastness is improved.
In the water absorption finishing part, after the inner layer is degreased by the yarn through pretreatment, 20g/L of hydrophilic soft oil is added; the same required 30min of operation. After this auxiliary agent added the dye vat, the dye vat still adopted the dye liquor moving mode, guarantee the fibrous top layer of the abundant even arrival of auxiliary agent in the yarn section of thick bamboo, the yarn that has handled through the soft oil, the fibre surface has covered the macromolecule of soft oil, and for the yarn provides one deck protective structure, can reduce the coefficient of friction on yarn surface, the mechanical friction resistance of fully ensured yarn, can need not carry out the yarn waxing process again, thereby guarantee going on smoothly of weaving, also can guarantee that the yarn has better effect of absorbing water.
In the drying step, after the finished surface layer yarn and the inner layer yarn are wound again, a yarn drum is dried by a radio frequency dryer, and then the weaving step is carried out.
In the weaving step, a weft knitting double-sided machine is adopted for weaving, the dried surface layer is woven on the surface layer by using yarns and spandex, the dried lining layer is woven on the lining layer by using yarns and spandex, and the middle layer is connected with the surface layer and the lining layer by using middle layer yarns; the coil length of the spandex yarn adopted by the yarn is 110-150mm/100G, namely the length of 100 coils of spandex yarn on the yarn cylinder is 110-150 mm.
And (3) entering a shaping step after weaving, wherein in the shaping step, the woven fabric is firstly pre-shaped by a shaping machine and then shaped, the shaping temperature is 200-: 25-30 m/min; the setting temperature is 140-: 20-25 m/min; in the prior production of similar yarns, the blank fixing temperature is generally 195 ℃, and the setting machine speed is 40 m/min; the higher temperature adopted in the embodiment is because the yarns subjected to water repellent finishing need high-temperature reaction to have the waterproof, oil-proof and antifouling effects, so that the washing fastness of the function is improved; if the process is not used properly, the non-uniformity of the waterproof effect of the surface of the fabric occurs, and after the AATCC22 test method is used, the fact that the washing resistance of the fabric subjected to the process is 90 minutes after 30 times of washing is found, and if the process is not used properly, the washing resistance is only 50 minutes after 10 times of washing. In addition, if the processing time is too long, the risks of fabric color change and spandex fusing can be caused; on the other hand, the heat setting of the fabric is mainly achieved according to the temperature and the time; too low a degree plays no role and too high a degree has destructive influence on the fastness of the dyed fabric and the performance of the thermoplastic fibers. Too slow a speed can result in excessive heat setting and too fast a speed can result in poor heat setting, so the above parameters are reasonably optimized to obtain the process.
The embodiment also discloses a fabric produced by the production process of the knitted fabric with the waterproof, oil-proof and stain-proof surface layer and the water-absorbing inner layer.
Here, the applicant also performed a waterproof performance test on the fabric, and the test process specifically includes: washing the cloth for multiple times by using a method III of AATCC135 standard and concentrated washing powder of the cocoon at the temperature of 41 ℃, wherein the use amount of the washing powder for each washing is 40 g; after multiple times of washing, the cloth cover of the fabric is scored by using an AATCC22 test method, and the higher the score is, the better the waterproof performance is.
By applying the method, the applicant tests the fabric by adding the conventional fabric according to the same method to serve as a control group, and the test results are as follows: after 5 times of washing, the fraction of the conventional fabric is 70 minutes, and the fraction of the fabric in the embodiment is 90 minutes; after washing for 10 times, the conventional fabric is divided into 50 points, and the fabric in the embodiment is divided into 80 points; after 20 times of washing, the fraction of the conventional fabric is 50 minutes, and the fraction of the fabric in the embodiment is 80 minutes; compared with the conventional fabric, the waterproof performance of the fabric in the embodiment is obviously improved.
While the embodiments of the present invention have been described in detail, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (14)
1. The production process of the knitted fabric with the surface layer waterproof, oil-proof and stain-proof and the inner layer water absorption is characterized by comprising the following steps which are sequentially executed:
spinning, namely spinning cotton fibers into yarns for the surface layer by using a compact spinning mode, spinning modal fibers after the dope is colored into yarns for the inner layer by using a compact spinning mode, and spinning elastic fibers into yarns for the middle layer;
a spooling step, namely spooling the surface layer by using yarns and the inner layer by using yarns;
dyeing, namely dyeing the wound surface layer with yarns;
a finishing step, performing water repellent finishing on the dyed surface layer by using yarns, and performing water absorption finishing on the lining layer by using yarns;
a drying step, drying the surface layer yarn and the inner layer yarn and spooling;
weaving, after drying, weaving the surface layer with yarns and spandex, weaving the lining layer with yarns and spandex, and connecting the surface layer with the lining layer with the middle layer with yarns;
and a shaping step, namely sequentially pre-shaping and shaping the woven fabric.
2. The process for producing the knitted fabric with the water-proof, oil-proof and stain-proof surface layer and the water-absorbing inner layer as claimed in claim 1, wherein in the spinning step, polyurethane fibers are used as elastic fibers.
3. The production process of the knitted fabric with the water-proof, oil-proof and stain-proof surface layer and the water absorption inner layer as claimed in claim 2, wherein in the spinning step, the yarn number of the surface layer yarn is 40S-60S, and the negative pressure of a gathering fan used when the cotton fiber is spun into the surface layer yarn by using a compact spinning mode is 2000-2500 Pa.
4. The production process of the knitted fabric with the waterproof, oil-proof and stain-proof surface layer and the water absorption function of the inner layer as claimed in claim 3, wherein the yarn number of the yarns for the inner layer is 30S-60S, the yarn twist coefficient is 330-2500 Pa, and the negative pressure of a gathering fan used when the modal fibers colored by the dope are spun into the yarns for the inner layer by a compact spinning method is 2100-2500 Pa.
5. The production process of the knitted fabric with the surface layer waterproof, oil-proof and stain-proof layer capable of absorbing water as claimed in claim 4, wherein the linear density of the polyurethane fibers in the yarns for the surface layer and the yarns for the inner layer is 20-40D, and the linear density of the polyurethane fibers in the yarns for the middle layer is 30-70D.
6. The process for producing a knitted fabric with water-proof, oil-proof and stain-proof layers and water absorption in the inner layer according to claim 2, wherein in the spooling step, the winding density of the cheese is 0.23-0.29g/cm3The yarn weight was 0.95 kg/piece.
7. The production process of the knitted fabric with the surface layer waterproof, oil-proof and stain-proof as claimed in claim 2, wherein the dyeing bath ratio in the dyeing step is 1:4-1:11, the dyeing temperature is 60 ℃, and the dye is added within 20 minutes.
8. The production process of the knitted fabric with the surface layer waterproof, oil-proof and stain-proof as claimed in claim 7, wherein in the dyeing step, after the dye is added, anhydrous sodium sulphate and sodium carbonate are added in sequence, and then the temperature rise rate is controlled to be below 0.5 ℃/min.
9. The production process of the knitted fabric with the surface layer waterproof, oil-proof and stain-proof as claimed in claim 8, wherein in the dyeing step, anhydrous sodium sulphate and soda ash are added respectively 3 times, and the dyeing agent is kept to rotate in a mode of forward rotation for 3-5min and reverse rotation for 2-4min all the time and the forward rotation time is longer than the reverse rotation time in the whole dyeing step.
10. The production process of the knitted fabric with the surface layer waterproof oil-proof antifouling inner layer water absorption, which is characterized in that in the finishing step, 80-110g/L of functional waterproof auxiliary agent and 20-30g/L of cross-linking agent are added into a dye vat, the water-repellent finishing is carried out on the yarns for the surface layer after 30min, meanwhile, the yarns for the inner layer are pretreated to remove oil, then the yarns are put into the dye vat, 20g/L of hydrophilic soft oil is added, and the water-absorbing finishing is carried out on the yarns for the inner layer after 30 min.
11. The production process of the knitted fabric with the waterproof, oil-proof and stain-proof surface layer and the water-absorbing inner layer as claimed in claim 2, wherein in the weaving step, a weft knitting double-faced machine is adopted for weaving, the dried surface layer is woven on the surface layer by using yarns and spandex, the dried inner layer is woven on the inner layer by using yarns and spandex, and the surface layer and the inner layer are connected by using middle layer yarns.
12. The process for producing the knitted fabric with the water-proof, oil-proof and stain-proof surface layer and the water-absorbing inner layer as claimed in claim 11, wherein in the weaving step, the adopted spandex yarn loop length is 110-150 mm/100G.
13. The production process of the knitted fabric with the waterproof, oil-proof and stain-proof surface layer and the water absorption inner layer as claimed in claim 2, wherein in the step of setting, the knitted fabric is pre-set and then set by a setting machine, wherein the setting temperature is 200-205 ℃ during pre-setting, and the setting machine speed is as follows: 25-30 m/min; the setting temperature is 140-: 20-25 m/min.
14. A fabric produced by the production process of the knitted fabric with the waterproof, oil-proof and stain-proof surface layer and the water absorption inner layer according to any one of claims 1 to 13.
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