CN118769671B - Production process and equipment of breathable and moisture-permeable composite fabric - Google Patents

Production process and equipment of breathable and moisture-permeable composite fabric Download PDF

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Publication number
CN118769671B
CN118769671B CN202410764032.2A CN202410764032A CN118769671B CN 118769671 B CN118769671 B CN 118769671B CN 202410764032 A CN202410764032 A CN 202410764032A CN 118769671 B CN118769671 B CN 118769671B
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China
Prior art keywords
fixedly connected
fabric
spray head
yarns
negative pressure
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CN118769671A (en
Inventor
王高
韩志刚
王传民
陆凤燕
朱正贵
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Pinghu Sanhe Dyeing And Finishing Co ltd
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Pinghu Sanhe Dyeing And Finishing Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/02—2 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0223—Vinyl resin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/04—Cellulosic plastic fibres, e.g. rayon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/08—Animal fibres, e.g. hair, wool, silk
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

本发明提供的一种透气透湿复合面料生产工艺，采用复合改性面料生产设备进行透气透湿复合面料生产，包括以下步骤：S1、表层面料制备；S2、内层面料制备；S3、面料复合，将表层面料与内层面料采用聚氨酯喷涂复合工艺进行复合，得到所述透气透湿复合面料。本发明透气透湿复合面料生产工艺制得的透气透湿复合面料具有透湿快干、透气舒适、保湿护肤、抗氧化等优点，适合进一步推广使用。

The present invention provides a breathable and moisture-permeable composite fabric production process, which adopts composite modified fabric production equipment to produce breathable and moisture-permeable composite fabrics, including the following steps: S1, surface fabric preparation; S2, inner fabric preparation; S3, fabric compounding, the surface fabric and the inner fabric are compounded by a polyurethane spraying compounding process to obtain the breathable and moisture-permeable composite fabric. The breathable and moisture-permeable composite fabric obtained by the breathable and moisture-permeable composite fabric production process of the present invention has the advantages of moisture permeability and quick drying, breathable and comfortable, moisturizing and skin care, anti-oxidation, etc., and is suitable for further promotion and use.

Description

Production process and equipment of breathable and moisture-permeable composite fabric
Technical Field
The invention relates to the technical field of production and preparation of composite fabrics, in particular to a preparation method of a breathable and moisture-permeable composite fabric.
Background
Textile fibers can be generally classified into natural fibers including cotton, hemp, silk, wool, etc., and synthetic fibers including polyester, acrylic, polypropylene, vinylon, etc. Although synthetic fibers have great advantages in terms of yield, strength, etc., compared with natural fibers, they are far less comfortable to wear than natural fibers because of their poor hygroscopicity and breathability. Moreover, as the working rhythm is accelerated and the life pressure is increased, people hope to relax and relax, so that casual clothing in textile markets at home and abroad becomes the mainstream of clothing design. The style of casual clothing requires light, natural, comfortable and beautiful, health care, and the fabric has the characteristics of light, soft, loose and sagging, and the change of popular trend promotes the structural change of textile fibers and clothing fabrics. At present, the trend of the development of the administration fiber and the fabric is mainly represented in three aspects:
(1) The market share of cellulose and protein-based fibers continues to increase;
(2) Differential fibers with high moisture permeability, moisture absorption, quick drying and other comfort characteristics for administration develop rapidly;
(3) The clothing fabric adopts multicomponent blending, and the advantages of different fibers are complemented.
The present situation of the existing synthetic fiber, such as acetalized polyvinyl alcohol fiber, namely vinylon, has the defect of poor dyeing property, so that vinylon is mainly used for industrial products and is greatly limited in civil products. In the process of modifying vinylon, people begin to search for modifying the performance of vinylon by using natural protein according to the unique advantages of natural protein fiber, such as good hygroscopicity, softness, gloss, comfort in wearing, good dyeing and the like, as shown by real silk, so that the vinylon can be more used for civil products. The patent No. CN 1492087A discloses a collagen composite fiber and a preparation method thereof, which is characterized in that protein extracted from animal peltry or leather industrial waste is grafted by adding an alkene monomer modifier and then is mixed with polyvinyl alcohol to be uniformly stirred, spinning solution with certain concentration and viscosity is prepared, and then wet spinning, solidification, stretching and acetalation treatment are carried out, so that the collagen composite fiber used as textile material is obtained. The patent number 200510020902.2 discloses a collagen-polyvinyl alcohol composite fiber modified by metal ions and a preparation method thereof, and on the basis of containing collagen and polyvinyl alcohol, metal ions are used as a modifier for chelating and crosslinking to prepare spinning solution, and a series of subsequent processes are carried out to prepare the novel collagen-polyvinyl alcohol composite fiber.
In order to expand the application range of the yarn, the collagen content of the yarn or the fabric needs to be improved so as to achieve the moisture retention and skin care effects of the yarn or the fabric. In view of the above, we disclose a method for preparing a breathable and moisture permeable composite fabric.
In addition, in the practical application process, the compound modes of the fabric comprise various modes such as sewing and gluing, wherein the sewn compound fabric has good handfeel, the self properties of the fabric are not affected, but if the fabric needing to be waterproof is prepared by the method, the waterproof effect is destroyed, the attaching effect of non-sewing stitch positions between the fabrics is poor, the subsequent processing and use are affected, the glued compound modified fabric has the advantages of high attaching degree and high attaching speed, the polyurethane spraying compound technology is one of the gluing compound technology, the application is wider, but the application is also problematic in certain aspects, the glue conveying pipeline is suspended by a valve when the traditional polyurethane spraying equipment is in a spraying intermittent state, the glue in the nozzle is always in a heating state, and the temperature and the maintenance time are all important factors affecting the adhesive force in the gluing attaching process, the most obvious effect of the overhigh temperature is to reduce the adhesion force of polyurethane, mainly because after the temperature is raised, the molecular spacing in polyurethane glue is increased, the interaction force between molecules is weakened, thus reducing the adhesive capability, meanwhile, after the temperature is raised, the polyurethane glue volume is expanded, the stress is generated between the front and back of the adhesive cross section, the adhesive strength is affected, the peeling resistance of the compounded fabric is poor, the curing speed of the polyurethane glue is affected by the overlarge temperature change, the curing temperature and the curing time adopted when the same batch of fabrics are maintained are consistent, the curing time and the curing temperature of the polyurethane glue coating area with large temperature fluctuation are inevitably different from those of the polyurethane glue coating area with normal temperature, the adhesive effect of the area is necessarily poor, in addition, when the shutdown time is longer, the polyurethane glue exposed out of a spray head is contacted with air for a long time, gel is easy to occur, and the production can be continued after manual cleaning is needed;
Aiming at the defects of production equipment and process in the prior art for producing the composite modified fabric, further improvement and optimization are necessary.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a production process and equipment of a breathable and moisture-permeable composite fabric, and the produced breathable and moisture-permeable composite fabric has the advantages of moisture permeability, quick drying, breathability, comfort, moisture preservation, skin protection, oxidation resistance and the like, is suitable for further popularization and use, and also solves the problems that the heating time of polyurethane glue is long after shutdown to cause overhigh temperature and influence the composite effect when the prior art is used for producing composite modified fabric, and the problem that gel is generated at a nozzle after long-time shutdown and can be continuously produced only by manual cleaning. .
In order to achieve the above purpose, the present invention proposes the following technical scheme:
A production process of a breathable and moisture permeable composite fabric adopts composite modified fabric production equipment to produce the breathable and moisture permeable composite fabric, and comprises the following steps:
s1, preparing surface fabric
Preparing silk fiber yarns, vitamin E viscose fiber modified yarns and polyester yarns, and feeding the silk fiber yarns, the vitamin E viscose fiber modified yarns and the polyester yarns into a braiding machine for weaving;
s2, preparing inner layer fabric
(1) Selecting knitting equipment, namely a Corii tricot machine, wherein the machine number is 28 needles/25.4 mm, the machine width is 186'', the number of bars is 2bars, and the machine speed is 1100-1300r/min;
(2) Setting up parameters:
the number of the yarn padding codes of the front comb GB1 is 1-0/0-1//, the warp feeding amount is 1000-1050mm/rack, and the yarn threading method is full threading;
The number of the yarn padding codes of the back comb GB2 is 1-0/3-4//, the warp feeding amount is 2000-2500mm/rack, and the yarn threading method is full threading;
(3) Preparing a blank, namely taking collagen modified yarns and protein modified cotton yarns as raw materials, performing chain knitting and yarn padding movement on a front comb GB1, performing oblique yarn padding movement on a rear comb GB2, and knitting through an oblique chain knitting tissue structure to obtain an inner layer fabric;
s3, compounding fabric
And compositing the surface fabric and the inner layer fabric by adopting a polyurethane spraying composite process to obtain the air-permeable and moisture-permeable composite fabric.
On the basis of the above scheme and as the preferred scheme of the above scheme, compound modified surface fabric production facility includes braider, polyurethane spraying compounding machine, negative pressure pump and high-pressure air heater, polyurethane spraying compounding machine includes frame, unreeling device, polyurethane spraying device, hot press device, rewinding device, polyurethane glue feed bucket, first measuring pump, cleaning solvent feed bucket, second measuring pump and multiunit solenoid valve, unreeling device includes inlayer material unreeling device, top layer material unreeling device, inlayer material unreeling device are upper and lower distribution and set gradually in the frame upper wall, hot press device, rewinding device all set up in the frame upper wall and all are located unreeling device right side, polyurethane spraying device includes:
The heat preservation box is used for controlling the temperature of the polyurethane glue, is fixedly connected to the upper wall of the rack and is positioned between the unreeling device and the hot pressing device, and a heat preservation structure is arranged in the heat preservation box;
The feeding connector is fixedly connected to the right wall of the heat insulation box and is close to the upper wall, one end of the feeding connector, far away from the heat insulation box, is fixedly connected with a first reversing valve through a second feeding pipe, a group of inlets and two groups of outlets are formed in the first reversing valve, the feeding connector is fixedly connected with one of the two groups of outlets in the first reversing valve, the other group of outlets of the first reversing valve are fixedly connected with a return pipe, one end of the return pipe, far away from the first reversing valve, is connected with a polyurethane glue feeding barrel, the inlet of the first reversing valve is fixedly connected with a first metering pump through a first feeding pipe, and one end of the first metering pump, far away from the first feeding pipe, is fixedly connected with the polyurethane glue feeding barrel;
the drying connector is fixedly connected to the right wall of the insulation box and positioned below the feeding connector, and one end of the drying connector, which is far away from the insulation box, is connected with the high-pressure air heater through a high-temperature-resistant air pipe;
The cleaning solvent connector is fixedly connected to the right wall of the heat insulation box and is positioned below the drying connector, one end of the cleaning solvent connector, which is far away from the heat insulation box, is fixedly connected with the second metering pump through a solvent pipeline, and one end of the second metering pump, which is far away from the solvent pipeline, is connected with the cleaning solvent feed barrel;
the spray head is fixedly connected to the lower wall of the heat preservation box, a fan-shaped atomizing spray hole for spraying out the polyurethane glue in a fan shape is formed in the inner wall of the spray head, and a protective cover is fixedly connected to the left wall of the spray head;
The heating pipe is fixedly connected to the lower wall of the inner side of the heat preservation box, the lower end of the heating pipe is spiral and is communicated with the spray head, one end of the heating pipe, which is far away from the spray head, is communicated with the feeding connector through the connecting pipe, one ends of the drying connector and the cleaning solvent connector, which face the heat preservation box, penetrate through the right wall of the heat preservation box and extend into the heat preservation box, and one ends of the drying connector and the cleaning solvent connector, which extend into the heat preservation box, are communicated with the connecting pipe;
the heating structure is used for heating the heating pipe and is arranged on the inner side wall of the heat preservation box;
The temperature detection structure is used for detecting the temperature inside the incubator and is arranged on the left wall of the incubator;
The baffle cover is used for covering the spray head, the baffle cover is rotationally connected to the left wall of the spray head through a rotating structure, the baffle cover is positioned below the protective cover, the lower wall of the baffle cover is provided with a round step, and the inner diameter of the round step is matched with the outer diameter of the spray head;
The sealing structure is used for sealing when the blocking cover shields the spray head and is arranged on the upper wall of the inner side of the step;
The driving structure is used for driving the rotating structure to move so as to drive the retaining cover to move, is fixedly connected to the lower wall of the heat insulation box and is positioned at the left side of the spray head, and is rotationally connected with the rotating structure through a connecting rod;
The first negative pressure connector and the second negative pressure connector are respectively and fixedly connected to the front wall of the spray head and the upper wall of the baffle cover, the first negative pressure connector is communicated with the inside of the spray head, and the second negative pressure connector is communicated with the inside of the round platform step of the baffle cover;
The adsorption structure is used for sucking away waste rubber and cleaning liquid in the spray head and is arranged between the first negative pressure connector, the second negative pressure connector and the negative pressure pump.
On the basis of the scheme and as the preferable scheme of the scheme, the heat insulation structure is a heat insulation layer which is fixedly connected to the inner side wall of the heat insulation box.
On the basis of the scheme and as a preferable scheme of the scheme, the heating structure is an electric heating module which is fixedly connected to the lower wall of the inner side of the heat preservation box, and one end of the electric heating module, which is far away from the lower wall of the inner side of the heat preservation box, extends into the spiral center of the spiral shape of the heating pipe;
On the basis of the scheme and as the preferable scheme of the scheme, the temperature detection structure is a temperature sensor, the temperature sensor is fixedly connected to the left wall of the insulation box, and the temperature sensor penetrates through the left wall of the insulation box towards one end of the insulation box and stretches into the insulation box.
On the basis of the scheme and as the preferred scheme of the scheme, the rotating structure comprises a first rotating seat and a second rotating seat, the first rotating seat is fixedly connected to the left wall of the spray head and is positioned in the protective cover, the second rotating seat is fixedly connected to the upper wall of the baffle cover, one side of the first rotating seat, which is far away from the spray head, is upwards and downwards sequentially connected with a first swing arm and a second swing arm in a rotating manner, one side of the second rotating seat, which is far away from the baffle cover, is sequentially connected with a third swing arm and a fourth swing arm in a rotating manner from left to right, one end of the first swing arm, which is far away from the first swing seat, is connected with one end of the fourth swing arm, which is far away from the second rotating seat, one end of the second swing arm, which is far away from the first swing arm, one end of the second swing arm, which is far from the second swing seat, is connected with one end of the third swing arm, which is far from the second swing arm, and one end of the fourth swing arm, can obtain a hundred eighty degree turnover range.
On the basis of the scheme and as the preferable scheme of the scheme, the sealing structure is a sealing gasket, the sealing gasket is fixedly connected to the upper wall of the inner side wall of the round bench of the baffle cover, and a through hole which is vertically through is formed in the inner wall of the sealing gasket and in the middle of the sealing gasket.
On the basis of the scheme and as the preferable scheme of the scheme, the driving structure is an electric telescopic rod which is fixedly connected to the lower wall of the heat insulation box and located on the left side of the spray head, and the extending shaft of the electric telescopic rod is rotationally connected with one end of the connecting rod, which is far away from the rotating structure.
On the basis of the scheme and as the preferred scheme of the scheme, the adsorption structure comprises a first suction pipe, a second suction pipe and a waste liquid bottle, wherein the first suction pipe is fixedly connected with one end of a first negative pressure joint far away from a spray head, the second suction pipe is fixedly connected with one end of a second negative pressure joint far away from a blocking cover, the first suction pipe is far away from one end of the first negative pressure joint, the second suction pipe is far away from one end of the second negative pressure joint and is fixedly connected with a second reversing valve, the second reversing valve is far away from the first suction pipe, one end of the second suction pipe is fixedly connected with a total suction pipe, the waste liquid bottle is fixedly connected with one end of the total suction pipe far away from the second reversing valve, a group of inlets and outlets are arranged on the waste liquid bottle, the inlet of the waste liquid bottle is fixedly connected with an ingress pipe which is communicated towards the inside of the waste liquid bottle, and the ingress pipe is communicated with the ingress pipe through the negative pressure pipe, and the outlet of the waste liquid bottle is connected with the negative pressure pump through the negative pressure pipe.
On the basis of the scheme and as a preferable scheme of the scheme, the breathable and moisture-permeable composite fabric comprises a surface layer fabric and an inner layer fabric which are compounded with each other:
The surface fabric is formed by alternately interweaving silk fiber yarns serving as warp yarns, vitamin E viscose modified yarns and polyester yarns serving as weft yarns at intervals, wherein the warp density of the surface fabric is 1100 yarns/10 cm, the weft density of the surface fabric is 450 yarns/10 cm, and the weave structure of the surface fabric is 5 pieces of 3 flying satins;
the inner layer fabric is formed by weaving a front comb GB1 and a rear comb GB2 of a single needle bar warp knitting machine by taking collagen modified yarns and protein modified cotton yarns as raw materials, wherein the front comb GB1 carries out chain knitting and yarn padding movement, and the rear comb GB2 carries out oblique yarn padding movement.
On the basis of the above scheme and as a preferable scheme of the above scheme, the collagen-modified composite fiber constituting the collagen-modified yarn comprises the following substances in parts by weight:
75-88 parts of polyvinyl alcohol;
15-30 parts of collagen;
1.5-4.5 parts of silver-loaded graphene oxide.
On the basis of the scheme and as a preferable scheme of the scheme, the fineness of the polyester yarn is 140-160dtex, the fineness of the vitamin E viscose fiber modified yarn is 140-160dtex, and the weft insertion ratio of the vitamin E viscose fiber modified yarn to the polyester yarn is (1-3): 1.
On the basis of the scheme and as a preferable scheme of the scheme, the vitamin E viscose fiber modified yarn is viscose fiber loaded with vitamin E nano particles with a core-shell structure.
On the basis of the scheme and as a preferable scheme of the scheme, the particle size of the vitamin E nanoparticle with the supported core-shell structure is 0.1-0.5um.
On the basis of the scheme and as a preferable scheme of the scheme, the protein modified cotton yarn is prepared by adsorbing the sericin surface of the fiber after finishing by the polycarboxylic acid finishing agent.
In addition to the above, and as a preferable mode of the above, the polycarboxylic acid finishing agent is citric acid.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
The invention discloses a production process and equipment of a breathable and moisture-permeable composite fabric, wherein vitamin E viscose fiber modified yarns used for surface fabric adopted by the fabric have excellent moisture permeability and air permeability, wherein vitamin E can also capture free radicals to form stable compounds, the composite fabric has good oxidation resistance, and inner layer fabric takes collagen modified yarns and protein modified cotton yarns as raw materials, prevents loss of collagen by utilizing formation of chemical bonds, ensures stability of fibers, and has the effects of moisturizing and protecting skin. The composite fabric has the advantages of moisture permeability, quick drying, ventilation, comfort, moisture preservation, skin care, oxidation resistance and the like, and is suitable for further popularization and application.
The invention discloses composite modified fabric production equipment which comprises a braiding machine, a polyurethane spraying compound machine, a negative pressure pump and a high-pressure air heater, wherein when the equipment is stopped for a short time, the negative pressure pump is used for sucking a part of glue in a spray head, and keeping a certain negative pressure, so that the glue in the spray head can not drop on the surface of an inner layer fabric, when the equipment is stopped for a long time such as material changing, material changing and the like, a first reversing valve is used for switching and returning fed glue from a return pipe to a polyurethane glue supply barrel, the glue is prevented from being gel in a time process of stopping in the first feed pipe, the spray head is covered by driving a rotating structure through an electric telescopic rod, the negative pressure pump is used for generating negative pressure to suck residual glue in the spray head into a waste liquid bottle, and cleaning solvent is introduced into the connecting pipe and the heating pipe for flushing.
Compared with the prior art, before the surface fabric is compounded with the inner layer fabric, polyurethane glue is sprayed to one side of the inner layer fabric opposite to the surface fabric through the fan-shaped atomization spray holes in the spray head, and then the polyurethane glue is compounded after hot pressing by the hot pressing device, and when the machine is stopped for a short time, part of the glue in the spray head is sucked away through the negative pressure pump, and a certain negative pressure is maintained, so that the glue in the spray head cannot drop on the surface of the inner layer fabric, and the defect of excessive local glue is avoided.
Compared with the prior art, this compound modified surface fabric production facility, when the change of materials, change of shape etc. need the long time stop, first switching-over valve switches the glue of feeding and returns polyurethane glue feed vat from the back flow, avoided glue to stop time course and take place the gel in first inlet pipe, when making glue backward flow, drive the rotation structure through electric telescopic handle and drive the fender lid and cover the shower nozzle, negative pressure pump produces the negative pressure and inhales the waste liquid bottle with remaining glue in the shower nozzle, let in cleaning solvent through the cleaning solvent joint, wash the connecting pipe, the heating pipe is inside, waste liquid after the washing also gets into the waste liquid bottle along the negative pressure that negative pressure pump produced and collects, the rethread stoving joint introduces hot air to inside is dried, the shower nozzle's that can not influence the use when follow-up production, do not need the manual work to clear up again, the problem that the adhesion that the long-time heating of glue leads to descends has also been avoided.
It should be understood that all combinations of the foregoing concepts, as well as additional concepts described in more detail below, may be considered a part of the subject disclosure, provided that such concepts are not mutually inconsistent.
The foregoing and other aspects, embodiments, and features of the teachings of the present invention will be more fully understood from the following description. Other additional aspects of the invention, such as features and/or advantages of the exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the embodiments according to the teachings of the invention.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the composite modified fabric production equipment;
FIG. 2 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 3 is a partial cross-sectional view of the internal structure of a waste liquid bottle of the composite modified fabric production equipment of the invention;
FIG. 4 is a partial cross-sectional view of the internal structure of a protective cover of the composite modified fabric production equipment of the invention;
FIG. 5 is a partial cross-sectional view of the internal structure of the insulation box of the composite modified fabric production equipment;
fig. 6 is a partial enlarged view of the present invention at B in fig. 5.
Wherein, 1, a first feeding pipe; 2, a first reversing valve, 3, a return pipe, 4, a second feeding pipe, 5, an insulation box, 6, a feeding joint, 7, a drying joint, 8, a cleaning solvent joint, 9, a spray head, 10, a first negative pressure joint, 11, a protective cover, 12, an electric telescopic rod, 13, a first suction pipe, 14, a second suction pipe, 15, a second reversing valve, 16, a total suction pipe, 17, a waste liquid bottle, 18, a negative pressure pipe, 19, a fan-shaped atomization spray hole, 20, a blocking cover, 21, a sealing gasket, 22, a second negative pressure joint, 23, an ingress pipe, 24, a connecting rod, 25, a first rotating seat, 26, a first swing arm, 27, a second swing arm, 28, a second rotating seat, 29, a third swing arm, 30, a fourth swing arm, 31, a connecting pipe, 32, a heating pipe, 33, an electric heating module, 34, a temperature sensor and 35, and an insulation layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below in connection with the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Also, unless the context clearly indicates otherwise, singular forms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "comprises," "comprising," or the like are intended to cover a feature, integer, step, operation, element, and/or component recited as being present in the element or article that "comprises" or "comprising" does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "up", "down", "left", "right" and the like are used only to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.
According to the silver-loaded graphene oxide, graphite oxide is prepared into 1.5mg/mL aqueous solution, then the aqueous solution of the graphene oxide is obtained by ultrasonic treatment for 30min by a 480W power ultrasonic machine, a mixed aqueous solution is obtained by dropwise adding silver nitrate solution with the same volume and 0.5mg/mL at the rate of 0.5mL/min by adopting a dropping funnel, APTES with the mass percent of 0.5wt% and 1mol/L ammonia water solution are sequentially added into the mixed aqueous solution, stirring is carried out for 24h under the condition that the stirring speed is 650rpm-850rpm, the mixture is placed into a reaction kettle, the mixture is placed into an air drying box with the temperature of 80 ℃, and the mixture is taken out and then is placed to room temperature, and washing is carried out by deionized water, so that the silver-loaded graphene oxide is obtained.
Further, polyvinyl alcohol and water were stirred and dissolved at 95℃for 4 hours in a certain ratio, and at the same time, collagen was soaked and swelled with distilled water 2 times its mass at room temperature for 4 hours. And cooling to 65 ℃ after the polyvinyl alcohol is dissolved, and adding the swelled collagen into the polyvinyl alcohol solution and stirring for 1h. Preparing silver-loaded graphene oxide into a 3.5% aqueous solution, slowly and dropwise loading the silver-loaded graphene oxide solution into the blending solution by adopting a constant-pressure dropping funnel, uniformly stirring for 30min, filtering and defoaming to obtain a spinning solution. Finally, wet spinning is adopted to obtain the collagen modified composite fiber, wherein the aperture of a spinneret orifice is 0.08mm, the temperature of a stock solution is 65 ℃, the coagulating bath is saturated sodium sulfate solution, and the temperature of the coagulating bath is 45 ℃. And performing hot stretching shaping and other processes on the fiber to prepare the collagen modified yarn.
In the collagen modified yarn system, the silver-loaded graphene oxide not only can provide silver elements and improve the fiber strength, but also has antibacterial and mildew-proof effects, on the other hand, the graphene oxide has large specific surface area and rich hydroxyl, carboxyl and epoxy groups, can form ester bonds with the hydroxyl of polyvinyl alcohol and form amide bonds with the amino of the collagen, so that the loss of the collagen can be reduced or prevented by using the formation of chemical bonds in the use process of the fiber, and the stability of the fiber is ensured. The mechanical property test of the yarn is carried out by adopting a fiber electronic strength tester, and the mechanical strength of the collagen fiber prepared after the silver-loaded graphene oxide is not added is 3.40cN/dtex, the elongation at break is 12.80%, and the mechanical strength of the collagen modified composite fiber prepared after the silver-loaded graphene oxide is added is 4.95cN/dtex, and the elongation at break is 12.56%.
Still further, the protein modified cotton yarn is prepared by adsorbing the sericin surface of the fiber after being finished by a polycarboxylic acid finishing agent, and the specific preparation method comprises the following steps:
(1) Pretreatment of cotton yarn
And (3) placing the cotton yarn raw yarn in deionized water solution at 60-70 ℃ for constant temperature scouring, and performing desizing and impurity cleaning.
(2) Impregnation modification
Placing the treated cotton yarn into a mixed solution of 9wt% of citric acid and 4wt% of sodium hypophosphite, wherein the bath ratio is 1:20, fully soaking for 5min, taking out, soaking for one time, soaking in a sodium bicarbonate solution (the bath ratio is 1:30) with the mass ratio of 3wt% for 30min after drying at 80 ℃, immersing the cotton yarn after fully washing and drying into a sericin solution with the mass ratio of 6wt% for 60min, and drying at 80 ℃ for 0.5-1h after fully washing.
The protein modification design of the cotton yarn can improve the moisture absorption performance of the cotton yarn, and the skin care effect of the amino acid is utilized to strengthen the moisture preservation effect of the cotton yarn, so that the manufactured fabric can remove sweat of a human body, is not easy to generate stuffiness and stickiness, achieves the effect of quick moisture absorption, and responds to the humidity change of a wearing space and an external environment through the moisture absorption and the moisture release, namely has the functions of adjusting the humidity and enhancing the comfort performance in use during wearing. The mechanism is as follows:
the cotton fiber contains a large amount of hydroxyl groups, and can be combined with carboxyl groups in the citric acid to generate esterification reaction, namely, two adjacent carboxyl groups in the citric acid are dehydrated to form anhydride, and the anhydride is further reacted with the hydroxyl groups on the cotton fiber to generate ester. Carboxylated cotton yarn is treated by sodium bicarbonate, a large number of carboxyl groups with negative charges are formed on the surface of the fiber, and a large number of amino acid derivatives can be combined in an aqueous solution in an ionic bond mode, so that a large number of amino acids are adsorbed, and the aim of whitening collagen of the fiber yarn is fulfilled.
Furthermore, the vitamin E viscose fiber modified yarn used in the invention is selected from the vitamin E viscose fiber of Hua raw technology Co., ltd, in particular to a viscose fiber formed by blending yarn by adding tourmaline material coated vitamin E core-shell structure nano particles into spinning solution. The vitamin E viscose yarn is prepared by compact spinning, so that the viscose fiber has the performance of viscose fiber and good oxidation resistance and deodorization functions. The vitamin E content in the viscose fiber is 0.26mg/kg through the research and test of the light-analysis chemical technology of Beijing midkinensis.
Performance testing
Air permeability test
The air permeability test is carried out by referring to the method of GB/T5453-1997, wherein the test parameters are that the pressure difference is 100Pa, and the area of a sample is 20cm 2.
Moisture permeability
The moisture permeability test refers to the GB/T12704.1-2009 method, wherein the test parameters are working temperature (38+/-2) DEG C, relative humidity (90+/-2)%, and the diameter of a sample is 70mm.
Oxidation resistance
The oxidation resistance of the fabric is tested by adopting a1, 1-diphenyl-2-picrylhydrazine (DPPH) method, the absorbance of the DPPH ethanol solution at 517nm is measured by adopting a DPPH method and an ultraviolet spectrophotometer, and the capability of eliminating free radicals of the fabric is determined. The smaller the absorbance value at 517nm, the more free radicals the fabric scavenges, and the better its oxidation resistance. The invention converts the oxidation resistance into DPPH free radical elimination rate to represent the oxidation resistance.
Determination of collagen content
The collagen content of the sample is an important index of the composite modified fabric, and is tested by referring to the first method in GB/T5009.5-2016, determination of protein in food safety national Standard food, and the protein content in the sample is determined after sampling and water extraction, so as to be used as the collagen content of the sample, and detailed test method standards are described and are not repeated here.
Examples 1 to 4
A breathable and moisture permeable composite fabric comprises a surface layer fabric and an inner layer fabric which are compounded with each other:
The surface fabric is formed by alternately interweaving silk fiber yarns serving as warp yarns, vitamin E viscose modified yarns and polyester yarns serving as weft yarns at intervals, wherein the warp density of the surface fabric is 1100 yarns/10 cm, the weft density of the surface fabric is 450 yarns/10 cm, and the weave structure of the surface fabric is 5 pieces of 3 flying satins;
the inner layer fabric is formed by weaving a front comb GB1 and a rear comb GB2 of a single needle bar warp knitting machine by taking collagen modified yarns and protein modified cotton yarns as raw materials, wherein the front comb GB1 carries out chain knitting and yarn laying movement, and the rear comb GB2 carries out oblique yarn laying movement;
the collagen modified composite fiber composing the collagen modified yarn comprises polyvinyl alcohol, collagen and silver-loaded graphene oxide, and the use amounts are shown in table 1.
Further, the vitamin E viscose fiber modified yarn is a viscose fiber loaded with vitamin E nano particles with a core-shell structure, and the weft insertion ratio of the vitamin E viscose fiber modified yarn to polyester yarn is shown in table 1.
A preparation method of a breathable and moisture permeable composite fabric comprises the following steps:
s1, preparing surface fabric
Preparing silk fiber yarns, vitamin E viscose fiber modified yarns and polyester yarns, and feeding the silk fiber yarns, the vitamin E viscose fiber modified yarns and the polyester yarns into a braiding machine for weaving;
s2, preparing inner layer fabric
(1) Selecting knitting equipment, namely a Corii tricot machine, wherein the machine number is 28 needles/25.4 mm, the machine width is 186'', the number of bars is 2bars, and the machine speed is 1100-1300r/min;
(2) Setting up parameters:
the number of the yarn padding codes of the front comb GB1 is 1-0/0-1//, the warp feeding amount is 1000-1050mm/rack, and the yarn threading method is full threading;
The number of the yarn padding codes of the back comb GB2 is 1-0/3-4//, the warp feeding amount is 2000-2500mm/rack, and the yarn threading method is full threading;
(3) Preparing a blank, namely taking collagen modified yarns and protein modified cotton yarns as raw materials, performing chain knitting and yarn padding movement on a front comb GB1, performing oblique yarn padding movement on a rear comb GB2, and knitting through an oblique chain knitting tissue structure to obtain an inner layer fabric;
s3, compounding fabric
And compounding the surface fabric and the inner fabric by adopting a polyurethane spraying compounding process.
Comparative example 1
Unlike example 1, the inner layer fabric of the composite modified fabric of this example is woven from collagen modified yarns as a raw material by front and rear combs GB1 and GB2 of a single needle bar warp knitting machine, and both the front and rear combs GB1 and GB2 are collagen modified yarns.
Comparative examples 2 to 4
The fiber yarns are prepared according to the using ratios of different materials, and the fabrics are woven and compounded according to the same preparation method in the embodiment 1, so that the corresponding fabrics are subjected to performance test and comparison. The usage of each material is compared with the relevant test and is shown in Table 1.
TABLE 1 analysis Table of Material use ratios and test results
From the comparative analysis of table 1 above, it can be seen that:
(1) On the premise of keeping other conditions unchanged, the use occupation ratio of the vitamin E viscose fiber modified yarn is improved, and the air permeability and the moisture permeability of the fabric are improved;
(2) The silver-loaded graphene oxide in the collagen modified yarn has the function of stabilizing collagen, so that the moisture-preserving and skin-protecting performances of the yarn are optimized;
(3) The use of vitamin E viscose modified yarns has a great influence on the antioxidant properties.
Examples 5 to 8
A process for producing a breathable and moisture-permeable composite fabric according to embodiments 5 to 8, wherein the breathable and moisture-permeable composite fabric corresponds to embodiments 1 to 4, respectively, and the breathable and moisture-permeable composite fabric according to embodiment 7 corresponds to embodiment 3, respectively;
In the production process of the breathable and moisture-permeable composite fabric in the specific embodiments 5-8, the production equipment of the breathable and moisture-permeable composite fabric is adopted for production of the breathable and moisture-permeable composite fabric, wherein the production equipment of the breathable and moisture-permeable composite fabric is the same;
As shown in fig. 1 to 6, the production equipment of the composite modified fabric comprises a braiding machine, a polyurethane spraying compounding machine, a negative pressure pump and a high-pressure hot air blower, wherein the polyurethane spraying compounding machine comprises a frame, an unreeling device, a polyurethane spraying device, a hot pressing device, a rewinding device, a polyurethane glue feeding barrel, a first metering pump, a cleaning solvent feeding barrel, a second metering pump and a plurality of groups of electromagnetic valves, the unreeling device comprises an inner layer unreeling device and a surface layer unreeling device, the surface layer unreeling device and the inner layer unreeling device are sequentially arranged on the upper wall of the frame in an up-down distribution manner, the hot pressing device and the rewinding device are all arranged on the upper wall of the frame and are all positioned on the right side of the unreeling device, and the technical scheme in the implementation is mainly optimized and improved aiming at polyurethane eune diagram device parts, and the rest parts are basically consistent with the prior art;
The polyurethane spraying device comprises an insulation box 5 for controlling the temperature of polyurethane glue, a feeding connector 6, a drying connector 7, a cleaning solvent connector 8, a spray head 9 for spraying the polyurethane glue, a heating pipe 32, a heating structure for heating the heating pipe 32, a temperature detection structure for detecting the temperature inside the insulation box 5, a blocking cover 20 for covering the spray head 9, a sealing structure for sealing when the blocking cover 20 shields the spray head 9, a driving structure for driving the rotating structure to move so as to drive the blocking cover 20 to move, a first negative pressure connector 10, a second negative pressure connector 22 and an adsorption structure for sucking waste glue and cleaning liquid inside the spray head 9;
The heat preservation box 5 is fixedly connected to the upper wall of the rack and is positioned between the unreeling device and the hot pressing device, a heat preservation structure is arranged in the heat preservation box 5, the heat preservation structure is a heat preservation layer 35, the heat preservation layer 35 is fixedly connected to the inner side wall of the heat preservation box 5, the heat loss speed in the heat preservation box 5 can be reduced through the heat preservation layer 35, the use times of the electric heating module 33 are reduced, and energy is saved;
the feeding connector 6 is fixedly connected to the right wall of the heat insulation box 5 and is close to the position of the upper wall, one end of the feeding connector 6, far from the heat insulation box 5, is fixedly connected with the first reversing valve 2 through the second feeding pipe 4, a group of inlets and two groups of outlets are arranged on the first reversing valve 2, the feeding connector 6 is fixedly connected with one group of outlets in the first reversing valve 2, the other group of outlets of the first reversing valve 2 are fixedly connected with the return pipe 3, one end of the return pipe 3, far from the first reversing valve 2, is connected with the polyurethane glue supply barrel, the inlet of the first reversing valve 2 is fixedly connected with the first feeding pipe 1, one end of the first metering pump, far from the first feeding pipe 1, is fixedly connected with the polyurethane glue supply barrel, and during normal spraying compounding, the first metering pump extracts polyurethane glue from the polyurethane glue supply barrel, the polyurethane glue enters the spray nozzle 9 through the first feeding pipe 1, the first reversing valve 2, the second feeding pipe 4, the connecting pipe 31 and the heating pipe 32, and then the spray out through the fan-shaped spray holes 19 in the spray nozzle 9, when the shutdown time is longer, in order to avoid the gel condition of long-time stay in the first feeding pipe 1, the polyurethane glue is returned to the first reversing valve 2 along the first reversing valve 2 through the first reversing valve 2;
The cleaning solvent connector 8 is fixedly connected to the right wall of the heat preservation box 5 and is positioned below the drying connector 7, one end of the cleaning solvent connector 8, which is far away from the heat preservation box 5, is fixedly connected with the second metering pump through a solvent pipeline, one end of the second metering pump, which is far away from the solvent pipeline, is connected with the cleaning solvent supply barrel, and after the return pipe 3 is started, part of glue is necessarily remained inside the spray head 9, the heating pipe 32 and the connecting pipe 31, so that the cleaning solvent in the cleaning solvent supply barrel can be extracted through the second metering pump, and the cleaning solvent is introduced into the spray head 9, the heating pipe 32 and the connecting pipe 31 for cleaning, thereby improving the use quality of the subsequent glue and the composite adhesion force;
The drying joint 7 is fixedly connected to the right wall of the heat insulation box 5 and is positioned below the feeding joint 6, one end, far away from the heat insulation box 5, of the drying joint 7 is connected with the high-pressure air heater through a high-temperature-resistant air pipe, and after the solvent cleans the pipeline, high-temperature air is introduced through the drying joint 7 to dry the interior of the pipeline;
The spray head 9 is fixedly connected to the inner wall of the spray head 9 on the lower wall of the heat preservation box 5, a fan-shaped atomization spray hole 19 for spraying polyurethane glue in a fan shape is formed in the inner wall of the spray head 9, a protective cover 11 is fixedly connected to the left wall of the spray head 9, and when in compounding, the glue is sprayed out of the fan-shaped atomization spray hole 19 and uniformly sprayed on the surface of the inner layer fabric;
The heating pipe 32 is fixedly connected to the lower wall of the inner side of the heat preservation box 5, the heating pipe 32 is in a spiral shape, the lower end of the spiral shape is communicated with the spray head 9, one end of the heating pipe 32, far away from the spray head 9, is communicated with the feeding joint 6 through the connecting pipe 31, the drying joint 7 and one end of the cleaning solvent joint 8, which faces the heat preservation box 5, penetrate through the right wall of the heat preservation box 5 and extend into the heat preservation box 5, one end of the drying joint 7 and one end of the cleaning solvent joint 8, which extend into the heat preservation box 5, are communicated with the connecting pipe 31, the heating structure is arranged on the inner side wall of the heat preservation box 5, the heating structure is an electric heating module 33, the electric heating module 33 is fixedly connected to the lower wall of the inner side of the heat preservation box 5, one end of the electric heating module 33, far away from the lower wall of the inner side of the heat preservation box 5, extends into the spiral center of the heating pipe 32, the temperature detection structure is arranged on the left wall of the heat preservation box 5, the temperature detection structure is a temperature sensor 34, the temperature sensor 34 is fixedly connected to the left wall of the heat preservation box 5, one end of the temperature sensor 34, which faces the left wall of the heat preservation box 5 and extends into the heat preservation box 5, the electric heating module 33 is matched with the temperature sensor 34, and the electric heating module 33 can be used to perform spiral heating to achieve proper temperature;
The baffle cover 20 is rotationally connected to the left wall of the spray head 9 through a rotating structure, the baffle cover 20 is positioned below the protective cover 11, the rotating structure comprises a first rotating seat 25 and a second rotating seat 28, the first rotating seat 25 is fixedly connected to the left wall of the spray head 9 and positioned in the protective cover 11, the second rotating seat 28 is fixedly connected to the upper wall of the baffle cover 20, one side of the first rotating seat 25, which is far away from the spray head 9, is sequentially rotationally connected with a first swing arm 26 and a second swing arm 27 from top to bottom, one side of the second rotating seat 28, which is far away from the baffle cover 20, is sequentially rotationally connected with a third swing arm 29 and a fourth swing arm 30 from left to right, one end of the first swing arm 26 far away from the first rotating seat 25 is in rotation connection with one end of the fourth swing arm 30 far away from the second rotating seat 28, one end of the connecting rod 24 far away from the driving structure, the middle position of the second swing arm 27 in the length direction is in rotation connection with the fourth swing arm 30, one end of the second swing arm 27 far away from the first rotating seat 25 is in rotation connection with one end of the third swing arm 29 far away from the second rotating seat 28, the retaining cover 20 can obtain a one hundred eighty degree turnover range through the first rotating seat 25, the second rotating seat 28, the first swing arm 26, the second swing arm 27, the third swing arm 29 and the fourth swing arm 30, and the retaining cover 20 can be turned over when being pushed by the limitation of the rotating structure so as to conveniently cover the spray head 9;
The lower wall of the baffle cover 20 is provided with a round step, the inner diameter of the round step is identical to the outer diameter of the spray head 9, the sealing structure is arranged on the upper wall of the inner side of the step, the sealing structure is a sealing gasket 21, the sealing gasket 21 is fixedly connected to the upper wall of the inner side of the round step of the baffle cover 20, the inner wall of the sealing gasket 21 is provided with a through hole which penetrates up and down, when the spray head 9 needs to be cleaned, the baffle cover 20 is turned over for one hundred eighty degrees to cover the lower end of the spray head 9 in advance, the sealing gasket 21 can improve the sealing performance of the joint, and leakage is avoided when glue is sucked or solvent is cleaned;
The driving structure is fixedly connected to the lower wall of the heat preservation box 5 and is positioned at the left side of the spray head 9, the driving structure is rotationally connected with the rotating structure through a connecting rod 24, the driving structure is an electric telescopic rod 12, the electric telescopic rod 12 is fixedly connected to the lower wall of the heat preservation box 5 and is positioned at the left side of the spray head 9, an extending shaft of the electric telescopic rod 12 is rotationally connected with one end, far away from the rotating structure, of the connecting rod 24, and the extending shaft of the electric telescopic rod 12 extends and retracts to drive the rotating structure to act through the connecting rod 24 so as to drive the baffle cover 20 to rotate;
The first negative pressure joint 10 and the second negative pressure joint 22 are respectively and fixedly connected to the front wall of the spray head 9 and the upper wall of the baffle cover 20, the first negative pressure joint 10 is communicated with the inside of the spray head 9, the second negative pressure joint 22 is communicated with the inside of the round platform step of the baffle cover 20, the adsorption structure is arranged between the first negative pressure joint 10, the second negative pressure joint 22 and the negative pressure pump and comprises a first suction pipe 13, a second suction pipe 14 and a waste liquid bottle 17, the first suction pipe 13 is fixedly connected to one end of the first negative pressure joint 10, which is far away from the spray head 9, the second suction pipe 14 is fixedly connected to one end of the second negative pressure joint 22, which is far away from the first negative pressure joint 10, the second suction pipe 14 is far away from one end of the second negative pressure joint 22, which is fixedly connected with a second reversing valve 15, one end of the second reversing valve 15, which is far away from the first suction pipe 13, the second suction pipe 14, is fixedly connected with a total suction pipe 16, the waste liquid bottle 17 is fixedly connected with one end of the total suction pipe 16 far away from the second reversing valve 15, a group of inlets and outlets are arranged on the waste liquid bottle 17, an ingress pipe 23 penetrating towards the interior of the waste liquid bottle 17 is fixedly connected with the inlet of the waste liquid bottle 17, the total suction pipe 16 is communicated with the ingress pipe 23, the outlet of the waste liquid bottle 17 is connected with a negative pressure pump through a negative pressure pipe 18, when the material changing, the changing and the like need to be stopped for a long time, the first reversing valve 2 returns the fed glue from the return pipe 3 to the polyurethane glue supply barrel, the glue is prevented from being stopped in the first feeding pipe 1 for a time course to gel, the electric telescopic rod 12 drives the rotating structure to drive the baffle cover 20 to cover the spray head 9 when the glue is in return, the negative pressure pump generates negative pressure to suck the residual glue in the spray head 9 into the waste liquid bottle 17, the cleaning solvent is introduced through the cleaning solvent connector 8, the connecting pipe 31 and the heating pipe 32 are internally flushed, the waste liquid after flushing enters the waste liquid bottle 17 along the negative pressure generated by the negative pressure pump to be collected, and hot air is introduced into the interior through the drying connector 7 to be dried, so that the use of the spray head 9 during subsequent production can not be influenced, manual cleaning is not needed, and the problem of reduced adhesion caused by long-time heating of glue is avoided.
Working principle: during normal spraying and compounding, the first metering pump extracts polyurethane glue from the polyurethane glue feed barrel, the polyurethane glue enters the spray head 9 through the first feed pipe 1, the first reversing valve 2, the second feed pipe 4, the connecting pipe 31 and the heating pipe 32, and then is sprayed out through the fan-shaped atomization spray holes 19 in the spray head 9, during compounding, the glue is sprayed out from the fan-shaped atomization spray holes 19 and uniformly sprayed on the surface of the inner layer fabric, when the shutdown time is long, in order to avoid the gel condition caused by long-time stay of the glue in the first feed pipe 1, the circulation direction is switched through the first reversing valve 2, the polyurethane glue in the first feed pipe 1 returns to the polyurethane glue feed barrel along the first reversing valve 2 and the return pipe 3, after the return pipe 3 is started, the spray head 9, the heating pipe 32 and the inside of the connecting pipe 31 inevitably remain part of the glue, and the cleaning solvent in the cleaning solvent feed barrel can be extracted through the second metering pump, after the subsequent glue is cleaned by introducing the spray head 9, the heating pipe 32 and the connecting pipe 31, the use quality of the subsequent glue is improved, the compound pasting force is improved, after the solvent is cleaned, high-temperature air is introduced through the drying joint 7, the inside of the pipeline is dried, the electric heating module 33 is matched with the temperature sensor 34 for use, the spiral structure of the heating pipe 32 can be heated to reach the proper spraying temperature, when the spray head 9 is in use, the baffle cover 20 is turned over by one hundred eighty degrees to cover the lower end of the spray head 9 in advance, the sealing gasket 21 can improve the sealing performance of the connecting part, leakage is avoided when the glue is absorbed or the solvent is cleaned, the extending and retracting action of the extending shaft of the electric telescopic rod 12 can drive the rotating structure to act through the connecting rod 24, the baffle cover 20 is driven to rotate, and when the material changing, the type changing and the like are required to be stopped for a long time, the first reversing valve 2 returns the fed glue from the return pipe 3 to the polyurethane glue supply barrel, the glue is prevented from being gel in the time course of stopping in the first feed pipe 1, the electric telescopic rod 12 drives the rotating structure to drive the baffle cover 20 to cover the spray head 9 while the glue is reflowed, the negative pressure pump generates negative pressure to suck the residual glue in the spray head 9 into the waste liquid bottle 17, the cleaning solvent is introduced through the cleaning solvent connector 8 to flush the inside of the connecting pipe 31 and the heating pipe 32, the waste liquid after flushing enters the waste liquid bottle 17 along with the negative pressure generated by the negative pressure pump to be collected, and the hot air is introduced through the drying connector 7 to dry the inside, so that the use of the spray head 9 in the subsequent production can be not influenced, the problem of manual cleaning is avoided, the problem of the reduction of the adhesion force caused by long-time heating of the glue is avoided, the heat loss speed in the heat preservation box 5 can be reduced through the heat preservation layer 35, the use times of the electric heating module 33 are reduced, and the energy is saved in the actual production:
Preparing surface fabric, namely preparing silk fiber yarns, vitamin E viscose fiber modified yarns and polyester yarns, and feeding the silk fiber yarns, the vitamin E viscose fiber modified yarns and the polyester yarns into a braiding machine for weaving to obtain the surface fabric;
Preparing an inner layer fabric, namely preparing a Kelite warp knitting machine, collagen modified yarns and protein modified cotton yarns, and weaving the inner layer fabric through an inclined knitting chain tissue structure;
And (3) compounding the surface fabric, namely respectively placing the surface fabric and the inner fabric on a surface fabric unreeling device and an inner fabric unreeling device of a polyurethane spraying compounding machine, sequentially passing through a polyurethane spraying device, a hot pressing device and a rewinding device after a head is pulled, spraying polyurethane glue to one side, facing the surface fabric, of the inner fabric through a fan-shaped atomizing spray hole 19 in a spray head 9 when the surface fabric and the inner fabric pass through the polyurethane spraying device, carrying out hot pressing compounding through the hot pressing device after spraying and watering, and then rewinding through the rewinding device.
While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present invention. Accordingly, the scope of the invention is defined by the appended claims.

Claims (9)

1. The production process of the breathable and moisture-permeable composite fabric is characterized by adopting composite modified fabric production equipment to produce the breathable and moisture-permeable composite fabric, and comprises the following steps of:
s1, preparing surface fabric
Preparing silk fiber yarns, vitamin E viscose fiber modified yarns and polyester yarns, and feeding the silk fiber yarns, the vitamin E viscose fiber modified yarns and the polyester yarns into a braiding machine for weaving;
s2, preparing inner layer fabric
(1) Selecting knitting equipment, namely a Corii tricot machine, wherein the machine number is 28 needles/25.4 mm, the machine width is 186'', the number of bars is 2bars, and the machine speed is 1100-1300r/min;
(2) Setting up parameters:
the number of the yarn padding codes of the front comb GB1 is 1-0/0-1//, the warp feeding amount is 1000-1050mm/rack, and the yarn threading method is full threading;
The number of the yarn padding codes of the back comb GB2 is 1-0/3-4//, the warp feeding amount is 2000-2500mm/rack, and the yarn threading method is full threading;
(3) Preparing a blank, namely taking collagen modified yarns and protein modified cotton yarns as raw materials, performing chain knitting and yarn padding movement on a front comb GB1, performing oblique yarn padding movement on a rear comb GB2, and knitting through an oblique chain knitting tissue structure to obtain an inner layer fabric;
the collagen modified composite fiber for forming the collagen modified yarn comprises the following substances in parts by weight:
75-88 parts of polyvinyl alcohol;
15-30 parts of collagen;
1.5-4.5 parts of silver-loaded graphene oxide;
s3, compounding fabric
Compounding the surface fabric and the inner layer fabric by adopting a polyurethane spraying compounding process to obtain the air-permeable and moisture-permeable composite fabric;
The utility model provides a compound modified surface fabric production facility that ventilative moisture-permeable composite fabric production technology adopted, includes braider, polyurethane spraying compounding machine, negative pressure pump and high-pressure air heater, polyurethane spraying compounding machine includes frame, unreeling device, polyurethane spraying device, hot press unit, rewinding unit, polyurethane glue feed bucket, first measuring pump, cleaning solvent feed bucket, second measuring pump and multiunit solenoid valve, unreeling device includes inlayer material unreeling device, top layer material unreeling device, inlayer material unreeling device is upper and lower distribution sets gradually in the frame upper wall, hot press unit, rewinding unit all set up at the frame upper wall and all are located unreeling device right side, polyurethane spraying device includes:
The heat preservation box (5) is used for controlling the temperature of the polyurethane glue, the heat preservation box (5) is fixedly connected to the upper wall of the rack and is positioned between the unreeling device and the hot pressing device, and a heat preservation structure is arranged inside the heat preservation box (5);
The feeding connector (6), feeding connector (6) fixed connection is in insulation can (5) right wall and be close to upper wall position, the one end that insulation can (5) was kept away from to feeding connector (6) is through first switching-over valve (2) of second inlet pipe (4) fixedly connected with, be provided with a set of import and two sets of export on first switching-over valve (2), feeding connector (6) and two sets of exports in first switching-over valve (2) one of them set of fixed connection, another set of export fixedly connected with back flow (3) of first switching-over valve (2), the one end that first switching-over valve (2) was kept away from to back flow (3) is connected with polyurethane glue feed bucket, first switching-over valve (2) import is through first inlet pipe (1) and first measuring pump fixed connection, the one end that first inlet pipe (1) was kept away from to first measuring pump and polyurethane glue feed bucket fixed connection;
The drying connector (7) is fixedly connected to the right wall of the heat insulation box (5) and is positioned below the feeding connector (6), and one end, far away from the heat insulation box (5), of the drying connector (7) is connected with the high-pressure air heater through a high-temperature-resistant air pipe;
The cleaning solvent connector (8), the cleaning solvent connector (8) is fixedly connected to the right wall of the heat insulation box (5) and is positioned below the drying connector (7), one end, far away from the heat insulation box (5), of the cleaning solvent connector (8) is fixedly connected with the second metering pump through a solvent pipeline, and one end, far away from the solvent pipeline, of the second metering pump is connected with the cleaning solvent feed barrel;
The spray head (9) is used for spraying polyurethane glue, the spray head (9) is fixedly connected to the lower wall of the insulation box (5), a fan-shaped atomizing spray hole (19) used for spraying the polyurethane glue in a fan shape is formed in the inner wall of the spray head (9), and a protective cover (11) is fixedly connected to the left wall of the spray head (9);
The heating pipe (32), heating pipe (32) fixed connection is at insulation can (5) inboard lower wall, heating pipe (32) are heliciform and heliciform lower extreme and shower nozzle (9) link up, the one end that shower nozzle (9) was kept away from to heating pipe (32) is link up with feed connector (6) through connecting pipe (31), drying joint (7), cleaning solvent connect (8) all run through insulation can (5) right wall towards one end of insulation can (5) and all stretch into inside insulation can (5), drying joint (7), cleaning solvent connect (8) stretch into the inside one end of insulation can (5) all link up with connecting pipe (31);
The heating structure is used for heating the heating pipe (32) and is arranged on the inner side wall of the heat preservation box (5);
the temperature detection structure is used for detecting the internal temperature of the heat preservation box (5), and is arranged on the left wall of the heat preservation box (5);
The baffle cover (20) is used for covering the spray head (9), the baffle cover (20) is rotationally connected to the left wall of the spray head (9) through a rotating structure, the baffle cover (20) is positioned below the protective cover (11), a circular step is arranged on the lower wall of the baffle cover (20), and the inner diameter of the circular step is matched with the outer diameter of the spray head (9);
the sealing structure is used for sealing when the blocking cover (20) shields the spray head (9), and is arranged on the upper wall of the inner side of the step;
The driving structure is used for driving the rotating structure to move so as to drive the blocking cover (20) to move, is fixedly connected to the lower wall of the heat insulation box (5) and is positioned at the left side of the spray head (9), and is rotationally connected with the rotating structure through a connecting rod (24);
The device comprises a first negative pressure connector (10) and a second negative pressure connector (22), wherein the first negative pressure connector (10) and the second negative pressure connector (22) are respectively and fixedly connected to the front wall of a spray head (9) and the upper wall of a baffle cover (20), the first negative pressure connector (10) is communicated with the inside of the spray head (9), and the second negative pressure connector (22) is communicated with the inside of a round bench of the baffle cover (20);
The adsorption structure is used for sucking away waste rubber and cleaning liquid in the spray head (9), and is arranged among the first negative pressure connector (10), the second negative pressure connector (22) and the negative pressure pump;
The driving structure is an electric telescopic rod (12), the electric telescopic rod (12) is fixedly connected to the lower wall of the heat insulation box (5) and is positioned at the left side of the spray head (9), and an extending shaft of the electric telescopic rod (12) is rotatably connected with one end, far away from the rotating structure, of the connecting rod (24);
the first reversing valve (2) is used for switching to return fed glue from the return pipe (3) to the polyurethane glue supply barrel, so that the electric telescopic rod (12) drives the rotating structure to drive the blocking cover (20) to cover the spray head (9) while the glue flows back.
2. The production process of the breathable and moisture-permeable composite fabric according to claim 1, wherein the heat-insulating structure is a heat-insulating layer (35), and the heat-insulating layer (35) is fixedly connected to the inner side wall of the heat-insulating box (5).
3. The production process of the breathable and moisture-permeable composite fabric according to claim 1, wherein the heating structure is an electric heating module (33), the electric heating module (33) is fixedly connected to the inner lower wall of the insulation box (5), and one end of the electric heating module (33) far away from the inner lower wall of the insulation box (5) stretches into the spiral center of the spiral shape of the heating pipe (32);
the temperature detection structure is a temperature sensor (34), the temperature sensor (34) is fixedly connected to the left wall of the heat preservation box (5), and one end of the temperature sensor (34) facing the heat preservation box (5) penetrates through the left wall of the heat preservation box (5) and stretches into the heat preservation box (5).
4. The process for producing the breathable and moisture-permeable composite fabric according to claim 1, wherein the rotating structure comprises a first rotating seat (25) and a second rotating seat (28), the first rotating seat (25) is fixedly connected to the left wall of the spray head (9) and is located inside the protective cover (11), the second rotating seat (28) is fixedly connected to the upper wall of the baffle cover (20), the first rotating seat (25) is rotatably connected with a first swing arm (26) and a second swing arm (27) from top to bottom in sequence from one side of the spray head (9), one side of the second rotating seat (28) away from the baffle cover (20) is rotatably connected with a third swing arm (29) and a fourth swing arm (30) from left to right in sequence, one end of the first swing arm (26) away from the first rotating seat (25) is rotatably connected with one end of the fourth swing arm (30) away from the second rotating seat (28), one end of the connecting rod (24) away from the driving structure, the length direction centering position of the second swing arm (27) is rotatably connected with the fourth swing arm (30), one end of the second swing arm (27) away from the first swing arm (25) is rotatably connected with the first swing arm (28), one end (25) is rotatably connected with the first swing arm (28) through the first swing arm (25) and one end (25) which is rotatably connected with the first swing arm (27) The third swing arm (29) and the fourth swing arm (30) can obtain a one hundred eighty degree turnover range.
5. The production process of the breathable and moisture-permeable composite fabric according to claim 1, wherein the sealing structure is a sealing gasket (21), the sealing gasket (21) is fixedly connected to the upper wall of the inner side wall of the circular truncated cone step of the baffle cover (20), and a through hole which is vertically through is formed in the inner wall of the sealing gasket (21) and in the middle of the sealing gasket;
The adsorption structure comprises a first suction pipe (13), a second suction pipe (14) and a waste liquid bottle (17), wherein the first suction pipe (13) is fixedly connected with one end of a first negative pressure joint (10) away from a spray head (9), the second suction pipe (14) is fixedly connected with one end of a second negative pressure joint (22) away from a baffle cover (20), the first suction pipe (13) is away from one end of the first negative pressure joint (10), the second suction pipe (14) is away from one end of the second negative pressure joint (22) and is fixedly connected with a second reversing valve (15), the second reversing valve (15) is away from one end of the first suction pipe (13) and the second suction pipe (14) and is fixedly connected with a total suction pipe (16), the waste liquid bottle (17) is fixedly connected with one end of the total suction pipe (16) away from the second reversing valve (15), a group of inlets and outlets are formed in the waste liquid bottle (17), the inlet of the waste liquid bottle (17) is fixedly connected with a group of inlets towards the inside of the waste liquid bottle (17), and the total suction pipe (16) is communicated with the waste liquid bottle (17) through the negative pressure pump (23).
6. The process for producing a breathable and moisture permeable composite fabric according to claim 1, wherein the breathable and moisture permeable composite fabric comprises a surface layer fabric and an inner layer fabric which are composited with each other:
The surface fabric is formed by alternately interweaving silk fiber yarns serving as warp yarns, vitamin E viscose modified yarns and polyester yarns serving as weft yarns at intervals, wherein the warp density of the surface fabric is 1100 yarns/10 cm, the weft density of the surface fabric is 450 yarns/10 cm, and the weave structure of the surface fabric is 5 pieces of 3 flying satins;
the inner layer fabric is formed by weaving a front comb GB1 and a rear comb GB2 of a single needle bar warp knitting machine by taking collagen modified yarns and protein modified cotton yarns as raw materials, wherein the front comb GB1 carries out chain knitting and yarn padding movement, and the rear comb GB2 carries out oblique yarn padding movement.
7. The process for producing a breathable and moisture permeable composite fabric according to claim 6, wherein the fineness of the polyester yarn is 140-160dtex, the fineness of the vitamin E viscose fiber modified yarn is 140-160dtex, and the weft insertion ratio of the vitamin E viscose fiber modified yarn to the polyester yarn is (1-3): 1.
8. The process for producing a breathable and moisture permeable composite fabric according to claim 6, wherein the vitamin E viscose fiber modified yarn is a viscose fiber loaded with vitamin E nanoparticles with a core-shell structure;
the particle size of the vitamin E nanoparticle with the supported core-shell structure is 0.1-0.5um.
9. The process for producing a breathable and moisture permeable composite fabric according to claim 6, wherein the protein modified cotton yarn is made by adsorbing the sericin surface of the fiber after finishing with a polycarboxylic acid finishing agent;
the polycarboxylic acid finishing agent is citric acid.
CN202410764032.2A 2024-06-14 2024-06-14 Production process and equipment of breathable and moisture-permeable composite fabric Active CN118769671B (en)

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