CN111516337A - Multifunctional fabric and preparation method thereof - Google Patents

Multifunctional fabric and preparation method thereof Download PDF

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Publication number
CN111516337A
CN111516337A CN202010433233.6A CN202010433233A CN111516337A CN 111516337 A CN111516337 A CN 111516337A CN 202010433233 A CN202010433233 A CN 202010433233A CN 111516337 A CN111516337 A CN 111516337A
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fabric
layer
film
multifunctional
film layer
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陈红霞
李鑫
沈玲
袁洪胜
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Jiangsu Goldsun Textile Science and Technology Co Ltd
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Jiangsu Goldsun Textile Science and Technology 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
    • 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
    • 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
    • B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B32B23/04—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B23/08—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption

Abstract

The invention discloses a multifunctional fabric and a preparation method thereof, the multifunctional fabric comprises a fabric layer, an adhesive layer and a film layer, the film layer is subjected to soft finishing and is provided with micropores, the film layer is attached to the reverse side of the fabric layer through the adhesive layer, and the multifunctional fabric is soft in hand feeling, skin-friendly, free of noise in turning, durable in feather prevention performance and excellent in air permeability. The preparation method of the multifunctional fabric has wide applicability, the material, yarn and fabric structure of the fabric layer are not limited, the preparation method is simple and easy to implement, and no special requirements are imposed on equipment and raw materials.

Description

Multifunctional fabric and preparation method thereof
Technical Field
The invention relates to a multifunctional fabric and a preparation method thereof, in particular to a soft, mute, anti-velvet-penetration and breathable multifunctional fabric and a preparation method thereof.
Background
The down feather is in a star-shaped structure, and the down feather fibers are provided with a large number of tiny pores and can contain a large amount of static air, so that the manufactured down feather quilt has good heat retention property and is popular with consumers. However, the down filaments on the down feather are very thin, and the problem that the down feather leaks out, namely the down feather is drilled out easily occurs in the quilt core fabric in the actual use process. In addition, the down feather fibers have a dust phenomenon under the condition of long-time storage (even under the condition of no illumination), so that fine dust generated by the down feather fibers is released into the air through the fabric and possibly inhaled by a human body to cause respiratory diseases.
At present, the anti-run-down fabric mainly has two preparation modes, the first mode is to form a structural phase with high tightness of the fabric in a high-count and high-density mode, meanwhile, the post-finishing of a wind-proof agent is assisted, and the processing stage is matched with a calendaring process to flatten yarns, so that the wind-proof agent is favorably and fully formed into a film; the second method is to adopt sea-island fiber or composite fiber filament with soluble partial components in a certain weaving direction, partially dissolve the prepared fabric through a subsequent fiber opening process to form a fluffy yarn body structure consisting of superfine fiber, wherein the fabric has superfine micropores, is breathable and moisture permeable, but the subsequent processing stage of the method also needs windproof finishing and calendaring technology to reduce the yarn characteristics of the sea-island fiber to a certain extent, and the hand feeling is hard, and on the other hand, the high-density chemical fiber can lead the home textile fabric to lose the skin-friendly characteristic. In addition, a method is also provided for coating a high moisture-permeable film on the fabric to obtain the down-proof fabric with a certain moisture-permeable effect, but the high moisture-permeable film body has low air permeability, so that the obtained fabric has poor moisture-permeable performance and poor air permeability; in addition, the coating can change the style of the fabric, the hand feeling is hard, the sound is large, the plastic feeling is strong, and the fabric is not suitable for being used as household textiles.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a soft, mute, down-proof and breathable multifunctional fabric and a preparation method thereof.
The technical scheme is as follows: the multifunctional fabric comprises a fabric layer, a bonding layer and a film layer, wherein the film layer is attached to the reverse side of the fabric layer through the bonding layer, and the film layer is subjected to soft finishing and is provided with micropores; wherein the maximum aperture range of the micropores is 15-25 μm, the minimum aperture range of the micropores is 2-6 μm, the aperture range with the largest proportion of micropore aperture distribution is 6-10 μm, and the proportion range with the largest proportion of micropore aperture distribution is 25-50%.
Preferably, the maximum pore diameter range of the micropores is 15-20 μm, and the minimum pore diameter range of the micropores is 4-6 μm.
Preferably, the bonding layer is a hot melt adhesive or a porous nanofiber web.
Wherein the hot melt adhesive is WS type hot melt adhesive or PUR type hot melt adhesive, and the porous nanofiber net is polypropylene or polyester-polypropylene melt-blown non-woven fabric.
Further preferably, the gram weight of the porous nanofiber web is 5-15 g/cm2。
The hot melt adhesive is used as a bonding layer and is usually applied to the fabric in a complete layer form, so that the fabric after the hot melt adhesive is cured has hard hand feeling and lower air permeability. The porous nanofiber net layer is used as a bonding layer, and the superfine fibers are arranged in disorder, so that the contact area of the porous nanofiber net layer and the fabric at the same position is smaller, but the porous nanofiber net layer is in linear contact with the fabric, the hand feeling and the air permeability of the bonded fabric are basically not influenced, and the bonding fastness is high.
Preferably, the noodlesThe material of the material layer is cotton or regenerated cellulose fiber, and the gram weight of the material layer is 60-160 g/m2。
In the multifunctional fabric, the material, yarn and fabric structure of the fabric layer are not limited, and the prepared fabric can achieve the effects of softness, silence, air permeability and down penetration prevention.
In order to achieve the comfort of the home textile fabric, cotton or regenerated cellulose fibers are preferred as the fabric layer in the invention. However, fabrics for other applications can be produced by the technical scheme of the invention, and the selection of the yarn material is not limited to the above fiber types, and other chemical fibers besides cellulose fibers can be selected.
Preferably, the film layer is a polyurethane film, a polyethylene film or a polytetrafluoroethylene film.
The multifunctional fabric has small selection limit on the film layer, and the film layer can be modified according to requirements, so that the product has rich functionality, such as functions of antibiosis, mite prevention, deodorization and the like. The polytetrafluoroethylene membrane has a large number of physical microporous structures, so that only a bonding process of a thin film layer and a fabric layer is needed, and a physical pore opening process is not needed. The polytetrafluoroethylene film is softer, and hardly generates extra plastic feeling when being bonded with the fabric, and meanwhile, the rigidity of the film body cannot be increased under the use environment with lower temperature.
The preparation method of the multifunctional fabric is characterized by comprising the following steps of:
(1) preparing a fabric layer;
(2) softening and finishing the film layer;
(3) punching a thin film layer;
(4) and (5) bonding the fabric layer and the film layer.
In order to ensure the appearance quality of the final finished product, the pH value of the prepared fabric layer is kept between 4.0 and 7.0, and the optimal range of the pH value of the fabric layer is 4.5 to 6.5.
In the soft finishing procedure of the step (2), the soft finishing method of the film layer is to dip the film into the organic silicon soft finishing liquid and then dry the film to prepare the film with soft and smooth hand feeling; wherein the concentration of the organosilicon softening finishing agent is 5-20 g/L, the drying temperature is 110-115 ℃, and the winding speed is 30-40 m/min.
In the punching procedure of the step (3), the needle planting density of the punching machine is 300-500 pieces/m, the punching frequency is 180-250 times/min, and the film feeding amount is 0.2-0.5 m/s.
In the step (4), in the step of bonding the fabric layer and the film layer, when the bonding layer is a hot melt adhesive arranged in a dot matrix manner, hot-pressing bonding is adopted, and the gluing amount is 0.2-3.0 g/m2The pressure of the hot pressing roller is 1.8-2.2 kg/m2The speed is 35-45 m/min; when the bonding layer is a porous nanofiber net, a hot-pressing or ultrasonic bonding mode is adopted.
In the bonding process, a hot-pressing bonding technology is conventionally adopted, and when the porous nanofiber web is used as a bonding layer, an ultrasonic bonding mode can be adopted. The melting effect of ultrasonic bonding on the fabric is more uniform, the acting position is only on the bonding layer, the structural influence of the fabric layer and the film layer is small, and the original fluffy and soft characteristics of the fabric can be kept as far as possible.
The multifunctional fabric disclosed by the invention is optimized in the process of bonding, particularly the gluing amount is optimized, the bonding firmness can be met, the blockage of micropores on a film in the bonding process can be reduced, and the air permeability of the fabric is not influenced.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:
(1) the film layer in the multifunctional fabric has a microporous structure in the physical structure sense, so that the air permeability of the fabric is improved, and the optimal air permeability of the fabric can be more than 25 mm/s; meanwhile, the film material with high rigidity, high stiffness and high turning noise becomes softer and quieter, the plastic feeling of the film is reduced through soft finishing, the softness and smoothness are enhanced, the best rigidity and toughness is less than 70, the best softness is more than 90, and the best smoothness is more than 90, so that the film material is better matched with a woven fabric layer, and the softer hand feeling is obtained;
(2) after the multifunctional fabric is subjected to film coating processing, the down penetration preventing effect is good and lasting, the number of the leaked down is less than 10 in single detection of the fabric, and the number of the leaked down is still less than 10 in 10 repeated detections; meanwhile, potential harm caused by the dust of the down feather in the long-term use process is avoided;
(3) the material, yarn and fabric structure of the fabric layer in the multifunctional fabric are not limited, and the material and structure matching with better comfort can be selected, such as thinner and softer yarn, the warp and weft density of the fabric does not need to reach very high tightness, and the whole fabric is more comfortable and lighter;
(4) the porous nanofiber net of the bonding layer in the multifunctional fabric is breathable, soft and strong in plasticity, the ultrasonic bonding technology is efficient and clean, and the influence on the original structural performance of the fabric is less, so that after the film is coated and attached, the fabric is not hard in hand feeling, the breathability is not reduced, and the noise is low; the hot melt adhesive adopts a dot matrix bonding mode, so that the bonding firmness can be met, and the hand feeling and the air permeability of the fabric can not be influenced;
(5) the preparation method of the multifunctional fabric has wide applicability, the material, yarn and fabric structure of the fabric layer are not limited, the operation is simple and easy, and no special requirements on equipment and raw materials are required
Drawings
FIG. 1 is a schematic structural view of a multifunctional fabric of the present invention;
wherein, 1 is a fabric layer, 2 is a bonding layer, 3 is a film layer, and 4 is a micropore.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Example 1
Step 1, preparing a fabric layer. The warp and weft yarns are all selected from 100% cotton yarns, the weave is selected from satin, and the grey cloth is obtained by weaving on an air jet loom, wherein the grey cloth production method comprises the following steps: warping → slashing → drafting and reeding → weaving on a machine. Then the fabric layer is prepared according to the pretreatment and dyeing and finishing processes of the common pure cotton fabric. The production method comprises the following steps: desizing → refining → bleaching → preshrinking → preshaping → softening and sizing. The pH value of the prepared fabric is 4.5, and the gram weight per square meter is 60g/m2。
And 2, softening and finishing the film layer. And (3) selecting a polyurethane film, soaking the polyurethane film in the organic silicon soft finishing liquid and drying to obtain the film with soft and smooth hand feeling. Specifically, the concentration of the organic silicon soft finishing agent is 5g/L, and the drying temperature is 110 ℃.
And 3, punching the thin film layer. And (3) perforating the prepared film through a mechanical perforating machine to form a compact microporous structure on the surface of the film. In the process, the needle density of the perforating machine is 300 pieces/m, the perforating frequency is 180 times/min, and the film feeding amount is 0.2 m/s.
And 4, adhering the fabric layer and the film layer. Compounding the fabric layer and the film layer into an integral structure by using PUR hot melt adhesive through hot pressing treatment, wherein the hot melt adhesive arranged in a dot matrix manner is bonded in a hot pressing manner, and the gluing amount is 0.2g/m2The pressure of the hot press roller is 1.8kg/m2The speed was 45 m/min.
Example 2
Step 1, preparing a fabric layer. The warp and weft yarns are all selected from 100% cotton yarns, the weave is selected from satin, and the grey cloth is obtained by weaving on an air jet loom, wherein the grey cloth production method comprises the following steps: warping → slashing → drafting and reeding → weaving on a machine. Then the fabric layer is prepared according to the pretreatment and dyeing and finishing processes of the common pure cotton fabric. The production method comprises the following steps: desizing → refining → bleaching → preshrinking → preshaping → softening and sizing. The pH value of the prepared fabric is 4.5, and the square meter gram weight is 112g/m2。
And 2, softening and finishing the film layer. And (3) selecting a polyurethane film, soaking the polyurethane film in the organic silicon soft finishing liquid and drying to obtain the film with soft and smooth hand feeling. Specifically, the concentration of the organic silicon soft finishing agent is 10g/L, and the drying temperature is 115 ℃.
And 3, punching the thin film layer. And (3) perforating the prepared film through a mechanical perforating machine to form a compact microporous structure on the surface of the film. In the process, the needle density of the perforating machine is 400 pieces/m, the perforating frequency is 220 times/min, and the film feeding amount is 0.35 m/s.
And 4, adhering the fabric layer and the film layer. Compounding the fabric layer and the film layer into an integral structure by using PUR hot melt adhesive through hot pressing treatment, wherein the hot melt adhesive arranged in a lattice manner is hot-pressed and adheredIn a combined mode, the gluing amount is 1.5g/m2The pressure of the hot press roller is 2.0kg/m2The speed was 40 m/min.
Example 3
Step 1, preparing a fabric layer. The warp and weft yarns are all selected from 100% cotton yarns, the weave is selected from satin, and the grey cloth is obtained by weaving on an air jet loom, wherein the grey cloth production method comprises the following steps: warping → slashing → drafting and reeding → weaving on a machine. Then the fabric layer is prepared according to the pretreatment and dyeing and finishing processes of the common pure cotton fabric. The production method comprises the following steps: desizing → refining → bleaching → preshrinking → preshaping → softening and sizing. The pH value of the prepared fabric is 4.5, and the gram weight per square meter is 160g/m2。
And 2, softening and finishing the film layer. And (3) selecting a polyurethane film, soaking the polyurethane film in the organic silicon soft finishing liquid and drying to obtain the film with soft and smooth hand feeling. Specifically, the concentration of the organic silicon soft finishing agent is 20g/L, and the drying temperature is 115 ℃.
And 3, punching the thin film layer. And (3) perforating the prepared film through a mechanical perforating machine to form a compact microporous structure on the surface of the film. In the process, the needle density of the punching machine is 500 pieces/m, the punching frequency is 250 times/min, and the film feeding amount is 0.5 m/s.
And 4, adhering the fabric layer and the film layer. Compounding the fabric layer and the film layer into an integral structure by using PUR hot melt adhesive through hot pressing treatment, wherein the hot melt adhesive arranged in a dot matrix manner is bonded in a hot pressing manner, and the gluing amount is 3.0g/m2The pressure of the hot press roller is 2.2kg/m2The speed was 35 m/min.
Example 4
Step 1, preparing a fabric layer. The warp and weft yarns are all 100% modal yarns, the weave is satin, and the grey cloth is obtained by weaving on a loom with an air jet, and the production method of the grey cloth comprises the following steps: warping → slashing → drafting and reeding → weaving on a machine. Then the fabric layer is prepared according to the pretreatment and dyeing and finishing processes of the common pure cotton fabric. The production method comprises the following steps: desizing → refining → bleaching → preshrinking → preshaping → softening and sizing. The pH value of the prepared fabric is 4.5, and the square meter gram weight is 115g/m2。
And 2, softening and finishing the film layer. And (3) selecting a polytetrafluoroethylene film, soaking the polytetrafluoroethylene film in the organic silicon soft finishing liquid, and drying to obtain the film with soft and smooth hand feeling. Specifically, the concentration of the organic silicon soft finishing agent is 5g/L, and the drying temperature is 110 ℃.
And 3, adhering the fabric layer and the film layer. Compounding the fabric layer and the film layer into an integral structure by using a porous nano fiber net through hot pressing treatment or an ultrasonic bonding mode, wherein the square meter gram weight of the porous nano fiber net is 5g/m2。
Example 5
Step 1, preparing a fabric layer. The warp and weft yarns are all 100% modal yarns, the weave is satin, and the grey cloth is obtained by weaving on a loom with an air jet, and the production method of the grey cloth comprises the following steps: warping → slashing → drafting and reeding → weaving on a machine. Then the fabric layer is prepared according to the pretreatment and dyeing and finishing processes of the common pure cotton fabric. The production method comprises the following steps: desizing → refining → bleaching → preshrinking → preshaping → softening and sizing. The pH value of the prepared fabric is 4.5, and the square meter gram weight is 115g/m2。
And 2, softening and finishing the film layer. And (3) selecting a polytetrafluoroethylene film, soaking the polytetrafluoroethylene film in the organic silicon soft finishing liquid, and drying to obtain the film with soft and smooth hand feeling. Specifically, the concentration of the organic silicon soft finishing agent is 5g/L, and the drying temperature is 110 ℃.
And 3, adhering the fabric layer and the film layer. And compounding the fabric layer and the film layer into an integral structure by using a porous nanofiber net through hot pressing or an ultrasonic bonding mode. Wherein the square meter gram weight of the porous nanofiber web is 15g/m2。
Comparative example 1
Adopts all-cotton down-proof fabric with the yarn count specification of 115g/m2The difference from the embodiment 2 is that the surface of the fabric is not provided with a polyurethane film, and the fabric is subjected to windproof soft finishing according to the process requirements of the conventional all-cotton down-proof fabric, so that the fabric obtains the down penetration preventing effect.
Comparative example 2
The difference from the embodiment 2 is that the film layer is not perforated, but a high moisture-permeable film is directly laminated according to the film coating process.
Comparative example 3
The difference from example 2 is that the film layer was not soft finished.
Comparative example 4
The difference from the embodiment 1 is that the pin density of the punch in the step 3 is 290 pieces/m, the punching frequency is 175 times/min, and the film feed amount is 0.15 m/s.
Comparative example 5
The difference from the embodiment 3 is that the needle density of the punch in the step 3 is 550 pieces/m, the punching frequency is 260 times/min, and the film feed amount is 0.55 m/s.
Example 6
The method for measuring each evaluation index of the present invention is as follows:
(1) air permeability
According to GB/T5453-1997 standard 'determination of textile fabric air permeability', sampling 20cm2And the velocity of the gas flow vertically through the sample was tested at a pressure drop of 100 Pa. And 5 points are selected on average in the whole width direction to measure the air permeability of the fabric, and the average value is obtained according to the result, and the result is shown in table 1.
(2) Down penetration resistance
According to the method specified in GB/T12705.2-2009 standard 'test method for penetration resistance of textile fabrics in part 2 of box rotating method', a 40cm × 40cm sample bag made of the down-proof moisture-permeable fabric is filled with duck down with a down content of 90%, and is placed in a rotating box made of transparent organic glass material, under the continuous impact of 10 rubber balls, the sample bag is rotated forwards and backwards 1000 times respectively, and finally the number of feathers, down feathers and down feather filaments on the rotating box, the rubber balls and the sample bag is checked and counted, the steps are repeated for 10 times according to the same method, and the durability of the penetration resistance of the fabric is detected, and the result is shown in Table 1.
(3) Pore size distribution
The perforated film sample described in this application was cut into 3 circles of 1.5cm diameter, soaked in a surfactant for 30 minutes, placed face up into a test cell of a capillary flow pore tester, and the test was performed (only 1 sample per time) after tightening the cover of the notch, and the pore characteristics (including the maximum detectable pore diameter, the minimum detectable pore diameter, the maximum pore diameter range, the percentage thereof, and the like) of the perforated film material were tested. The average of the results of the 3 samples is shown in Table 1.
(4) Detection of fabric hand feeling style
Adopting a Phabrometer fabric hand feeling tester, and according to the operation instruction of the tester, testing a sample with the area of 100cm2The sample is pushed to generate mechanical deformation through the round hole in the center of the test disc by moving downwards through a vertical rod, and the deformation process is used for simulating the deformation process during manual feeling evaluation. The sample is balanced for 24 hours in a constant temperature and humidity environment, then 3 pieces of fabric are selected to test the style parameters (rigidity, softness and smoothness) of the fabric, and the average value is obtained according to the result, and the result is shown in table 2.
TABLE 1 results of characteristic measurements
Figure BDA0002501287250000071
TABLE 2 hand feeling style test results
Figure BDA0002501287250000081
As can be seen from tables 1 and 2:
(1) compared with the fabric of the comparative example 1, the multifunctional fabric provided by the invention has the advantages that the pores of the prepared fabric are more uniform due to the adoption of the specific film coating process, the multifunctional fabric has higher air permeability under the condition of achieving better down-penetration resistance, and meanwhile, the down-penetration resistance is more durable;
(2) compared with the fabric of comparative example 2, the multifunctional fabric of the invention has obviously higher air permeability than the fabric of comparative example 2 because the film with physical and mechanical pores is attached; meanwhile, the fabric of the comparative example 2 has extremely low air permeability, and the film on the fabric has the risk of being broken by suddenly acting physical machinery or air flow, so that the down penetration resistance is sharply reduced; in addition, the microporous structure on the film layer further improves the hand feeling of the fabric, achieves better matching with the woven fabric layer and obtains softer hand feeling;
(3) compared with the fabric of comparative example 3, the multifunctional fabric of the invention has the advantages that the fabric is softer and smoother without obvious stiffness, except that the down-proof performance and the air permeability are maintained;
(4) compared with the fabrics of the comparative example 4 and the comparative example 5, the multifunctional fabric has the advantages that the film prepared by adopting the specific film punching process has specific micropore structure parameters, and comprises the maximum pore diameter, the minimum pore diameter, the pore diameter range with the largest distribution ratio and the distribution ratio thereof, so that the multifunctional fabric has more uniform pores, proper air permeability, excellent and durable down-proof performance, more comfortable overall fabric hand feeling, and better overall air permeability, down-proof and soft effects, and the multifunctional fabric is obtained by screening and optimizing.

Claims (8)

1. The multifunctional fabric is characterized by comprising a fabric layer, an adhesive layer and a film layer, wherein the film layer is attached to the back surface of the fabric layer through the adhesive layer, and the film layer is subjected to soft finishing and is provided with micropores; wherein the maximum aperture range of the micropores is 15-25 μm, the minimum aperture range of the micropores is 2-6 μm, the aperture range with the largest proportion of micropore aperture distribution is 6-10 μm, and the proportion range with the largest proportion of micropore aperture distribution is 25-50%.
2. The multifunctional fabric according to claim 1, wherein the maximum pore size of the micropores is in a range of 15 to 20 μm.
3. The multifunctional fabric according to claim 1, wherein the minimum pore size of the micropores is in a range of 4 to 6 μm.
4. The multifunctional fabric according to claim 1, wherein the adhesive layer is a hot melt adhesive or a porous nanoweb.
5. According to claimThe multifunctional fabric of claim 4, wherein the porous nanofiber web has a grammage of 5-15 g/cm2。
6. The multifunctional fabric according to claim 1, wherein the fabric layer is made of cotton or regenerated cellulose fiber, and the gram weight of the fabric layer is 60-160 g/m2。
7. The multifunctional fabric according to claim 1, wherein the film layer is a polyurethane film, a polyethylene film, or a polytetrafluoroethylene film.
8. The preparation method of the multifunctional fabric is characterized by comprising the following steps of:
(1) preparing a fabric layer;
(2) softening and finishing the film layer;
(3) punching a thin film layer;
(4) and (5) bonding the fabric layer and the film layer.
CN202010433233.6A 2020-05-21 2020-05-21 Multifunctional fabric and preparation method thereof Pending CN111516337A (en)

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CN113276524A (en) * 2021-05-27 2021-08-20 华东理工大学 Composite fabric for gas protective clothing and preparation method thereof
CN114248517A (en) * 2022-01-04 2022-03-29 新乐华宝医疗器械有限公司 Composite material of moisture permeable and bacteriophage resistant and preparation method thereof
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CN114889260A (en) * 2022-05-24 2022-08-12 高梵(浙江)信息技术有限公司 Breathable and warm-keeping down jacket fabric and preparation method thereof

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