CN116446104A - Functional non-woven fabric and production process thereof - Google Patents

Functional non-woven fabric and production process thereof Download PDF

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Publication number
CN116446104A
CN116446104A CN202310426444.0A CN202310426444A CN116446104A CN 116446104 A CN116446104 A CN 116446104A CN 202310426444 A CN202310426444 A CN 202310426444A CN 116446104 A CN116446104 A CN 116446104A
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functional
woven fabric
vitamin
fiber
nonwoven fabric
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王萍萍
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Individual
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • D04H1/495Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet for formation of patterns, e.g. drilling or rearrangement
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/165Ethers
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/224Esters of carboxylic acids; Esters of carbonic acid
    • D06M13/228Cyclic esters, e.g. lactones
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02Natural fibres, other than mineral fibres
    • D06M2101/04Vegetal fibres
    • D06M2101/06Vegetal fibres cellulosic
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16Synthetic fibres, other than mineral fibres
    • D06M2101/30Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32Polyesters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62Manufacturing 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)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The application provides a functional non-woven fabric and a production process thereof, and relates to the technical field of non-woven fabric preparation. A production process of a functional non-woven fabric comprises the following steps: mixing, opening, carding, lapping and drafting the terylene and the viscose fiber to obtain a fiber net; pre-wetting the fiber net, and then performing water needling treatment; spraying functional aqueous solution containing vitamin C and vitamin E on the fiber net after hydroentangled, and carrying out vacuum suction on the fiber net to obtain a non-woven fabric semi-finished product; rolling, drying, detecting and cutting the non-woven fabric semi-finished product to obtain the functional non-woven fabric. The non-woven fabric produced by the method has weak acidity and higher whiteness, is more favorable for wet dressing when being used as face washing towel, has better adsorptivity to sweat and garbage on skin, and plays a cosmetic effect.

Description

Functional non-woven fabric and production process thereof
Technical Field
The application relates to the technical field of non-woven fabric preparation, in particular to a functional non-woven fabric and a production process thereof.
Background
Nonwoven fabrics, also known as nonwovens, are composed of oriented or random fibers. It is called a cloth because of its appearance and certain properties. The non-woven fabric has no warps and wefts, is very convenient to cut and sew, is light in weight and easy to shape, and is deeply favored by handcraftsmen. Because it is a fabric formed without spinning cloth, only the textile short fibers or filaments are oriented or randomly arranged to form a fiber web structure, and then the fiber web structure is reinforced by mechanical, thermal or chemical methods.
The non-woven fabrics are popular in the fields of medical treatment and health, home decoration, clothing and the like because of the advantages of light weight, softness, antibiosis, environmental protection and the like, especially in the current cosmetic industry, face washing towel, soft towel roll and the like made of the non-woven fabrics are touted, but the existing non-woven fabrics are mostly alkalescent, and cannot achieve better effects in the beauty industry.
Disclosure of Invention
The purpose of the application is to provide a production process of functional non-woven fabrics, which is simple and has low equipment cost.
Another object of the present application is to provide a functional nonwoven fabric having stronger adsorptivity and beauty.
In order to solve the technical problems, the application adopts the technical scheme that:
in one aspect, the present application provides a process for producing a functional nonwoven fabric, comprising the steps of:
mixing, opening, carding, lapping and drafting the terylene and the viscose fiber to obtain a fiber net;
pre-wetting the fiber net, and then performing water needling treatment; spraying functional aqueous solution containing vitamin C and vitamin E on the fiber net after hydroentangled, and carrying out vacuum suction on the fiber net to obtain a non-woven fabric semi-finished product;
rolling, drying, detecting and cutting the non-woven fabric semi-finished product to obtain the functional non-woven fabric.
In another aspect, the present application provides a functional nonwoven fabric prepared by the above production process.
Compared with the prior art, the embodiment of the application has at least the following advantages or beneficial effects:
the functional treatment agent comprising vitamin C and vitamin E is added in the water needling step to spray and suck the non-woven fabric fiber web, so that the functional water solution uniformly permeates into the fiber web from the surface of the fiber web, the treatment agent can enable the finally produced non-woven fabric to have weak acidity and higher whiteness, wet dressing is more facilitated when the non-woven fabric is used as a face towel, sweat and garbage on skin have better adsorptivity, and the effect of beautifying is achieved.
In addition, the water jet nozzle and the final water jet pressure are increased in the water jet step, the height of the produced non-woven fabric texture is increased, and the effects of cleaning, decontamination and the like are better on the premise of ensuring skin softness.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a production process of experimental example 1 of the present application;
FIG. 2 is one of the absorption diagrams of different treatment products in experimental example 3 of the present application;
FIG. 3 is a second graph showing the absorption of various treatment products in experimental example 3 of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail with reference to specific examples.
A production process of a functional non-woven fabric comprises the following steps:
mixing, opening, carding, lapping and drafting the terylene and the viscose fiber to obtain a fiber net;
pre-wetting the fiber net, and then performing water needling treatment; spraying functional aqueous solution containing vitamin C and vitamin E on the fiber net after hydroentangled, and carrying out vacuum suction on the fiber net to obtain a non-woven fabric semi-finished product;
rolling, drying, detecting and cutting the non-woven fabric semi-finished product to obtain the functional non-woven fabric.
In some embodiments of the present application, the ratio of the polyester to the viscose fiber is (60-70): (30-40).
In some embodiments of the present application, the number of the spray heads in the above-mentioned water jet treatment step is 8, the pressure of the first 5 water jet spray heads is 60-80bar, and the pressure of the last 3 water jet spray heads is 90-100bar.
In some embodiments of the present application, the functional aqueous solution is formulated by the following method: dissolving vitamin C and vitamin E in water of 20-45deg.C, dissolving completely and uniformly, and diluting to obtain functional water solution.
In some embodiments of the present application, the concentration of vitamin C and vitamin E in the functional aqueous solution is 1.5-2.5%.
In some embodiments of the present application, the aqueous solution used for the hydroentanglement is at a temperature of 12-18 ℃.
In some embodiments of the present application, the drying temperature is 130-140 ℃, and the moisture regain of the dried nonwoven fabric is 6.5-7%.
The functional non-woven fabric is prepared by adopting the production process.
The features and capabilities of the present application are described in further detail below in connection with the examples.
Example 1
A preparation process of the functional non-woven fabric is shown in fig. 1, and comprises the following steps:
feeding: adding terylene and viscose fiber in sequence, wherein the proportion of the terylene to the viscose fiber is 65:35.
clearing: each production line mainly comprises three electronic weighing bale openers, a pre-opener, a large cotton mixer, two fine openers, two metal detectors and a pipeline type two-way cotton distributor. The electronic scale unpacking is carried out after polyester and viscose are weighed according to a set proportion, then the preliminary mixing is carried out, the fiber blocks in the raw materials are torn and loosened through the relative motion of a pre-opener middle machine, so that the density of the fiber blocks is reduced, various raw materials are further mixed through a cotton mixer, finally the fiber raw materials are beaten or the fiber layers are penetrated simultaneously through a fine opener beating machine part to carry out segmentation and carding, the bonding force among fibers is destroyed, and the aim of further loosening the fiber blocks is achieved.
Carding: the opened fiber is sent to a carding process through a closed pipeline, and the mixed fiber bundle is carded into a thin net composed of single fibers for laying and lapping and subsequent water jet reinforcement.
Lapping and drafting: the web fed from the carding machine is fed into an emergency cotton sucking and trimming device, and the thin web is laid into a web with a certain thickness and width, and the uniformity of the fiber layer and the consistency of the longitudinal and transverse strength are strictly controlled.
Preparing a water thorn solution: dissolving vitamin C and vitamin E in water at 30deg.C, stirring to dissolve thoroughly, and diluting with water at 15deg.C to obtain functional treatment solution with vitamin C and vitamin E concentration of 2%.
And (3) water jet: the fiber web is pre-wetted and then enters a water jet area, and a plurality of micro water jet streams are sprayed from water jet holes of a water jet plate of a water jet head and vertically irradiate the fiber web. The water jet displaces a portion of the surface fibers in the web and our formulation is sprayed into the surface, including vertical movement toward the opposite side of the web, and is deflected by the supporting curtain or drum to scatter at different orientations toward the opposite side of the web as the water jet penetrates the web. Under the dual actions of direct impact of water jet and rebound of water jet, the fibers in the fiber net displace, interpenetrate, intertwine and cohesion to form a plurality of flexible intertwining points, so that the fiber net is reinforced. In the water jet step, the number of the water jet heads is 8, the pressures of the first 5 water jet nozzles are 60bar, 70bar, 75bar, 65bar and 65bar in sequence, and the pressures of the last 3 water jet nozzles are 90bar, 95bar and 90bar. The adoption of 8 spray heads and the increase of the pressure of the last 3 spray heads can lead the stress of the fiber web to be more uniform, the non-woven fabric is better in networking, and the jacquard effect is better.
The functional aqueous solution was sprayed onto the web by variable frequency spray heads (24 spray heads per row) and was uniformly permeated into the web from the web surface by vacuum suction. The water used in the process is soft water, and the waste water generated in the water needling process is reused for production after being treated by reuse water engineering.
And (5) rolling and drying: in order to reduce the energy consumption of drying, the fiber web after vacuum suction is further rolled and dried, a pair of rollers are adopted for mutual extrusion, water in the middle non-woven fabric is rolled and dried, and the generated wastewater is recycled for production after being treated by recycling water engineering.
And (3) drying: the formed web was fed into a twin cylinder dryer and dried by hot air (135 c) generated by heating with natural gas to a moisture regain of 6.8%.
And (3) rolling: and (5) winding and rolling the non-woven fabric product by using an automatic winding machine, wherein the winding machine Ji Miding is long, the fixed length is automatically stopped, and the roll is automatically replaced.
And (3) cloth inspection: and (5) performing spot check on the product by using check equipment, and detecting gram weight, thickness, strength and the like.
Cutting: and cutting the wound non-woven fabric on a cutting machine according to the size requirement of a customer.
And (3) a finished product: and packaging and warehousing the qualified products after quality inspection.
Example 2
A functional non-woven fabric is prepared by the following method:
feeding: adding terylene and viscose fiber in sequence, wherein the proportion of the terylene to the viscose fiber is 70:30.
clearing: each production line mainly comprises three electronic weighing bale openers, a pre-opener, a large cotton mixer, two fine openers, two metal detectors and a pipeline type two-way cotton distributor. The electronic scale unpacking is carried out after polyester and viscose are weighed according to a set proportion, then the preliminary mixing is carried out, the fiber blocks in the raw materials are torn and loosened through the relative motion of a pre-opener middle machine, so that the density of the fiber blocks is reduced, various raw materials are further mixed through a cotton mixer, finally the fiber raw materials are beaten or the fiber layers are penetrated simultaneously through a fine opener beating machine part to carry out segmentation and carding, the bonding force among fibers is destroyed, and the aim of further loosening the fiber blocks is achieved.
Carding: the opened fiber is sent to a carding process through a closed pipeline, and the mixed fiber bundle is carded into a thin net composed of single fibers for laying and lapping and subsequent water jet reinforcement.
Lapping and drafting: the web fed from the carding machine is fed into an emergency cotton sucking and trimming device, and the thin web is laid into a web with a certain thickness and width, and the uniformity of the fiber layer and the consistency of the longitudinal and transverse strength are strictly controlled.
Preparing a water thorn solution: dissolving vitamin C and vitamin E in 45 ℃ water, stirring to dissolve the vitamin C and the vitamin E sufficiently, and diluting the vitamin C and the vitamin E with 12 ℃ water sufficiently to prepare the functional treatment liquid with the vitamin C and the vitamin E concentration of 2.2%.
And (3) water jet: the fiber web is pre-wetted and then enters a water jet area, and a plurality of micro water jet streams are sprayed from water jet holes of a water jet plate of a water jet head and vertically irradiate the fiber web. The water jet displaces a portion of the surface fibers in the web and our formulation is sprayed into the surface, including vertical movement toward the opposite side of the web, and is deflected by the supporting curtain or drum to scatter at different orientations toward the opposite side of the web as the water jet penetrates the web. Under the dual actions of direct impact of water jet and rebound of water jet, the fibers in the fiber net displace, interpenetrate, intertwine and cohesion to form a plurality of flexible intertwining points, so that the fiber net is reinforced. In the water jet step, the number of the water jet heads is 8, the pressures of the first 5 water jet nozzles are 60bar, 70bar, 80bar, 70bar and 65bar in sequence, and the pressures of the last 3 water jet nozzles are 95bar, 95bar and 90bar. The adoption of 8 spray heads and the increase of the pressure of the last 3 spray heads can lead the stress of the fiber web to be more uniform, the non-woven fabric is better in networking, and the jacquard effect is better.
The functional aqueous solution was sprayed onto the web by variable frequency spray heads (24 spray heads per row) and was uniformly permeated into the web from the web surface by vacuum suction. The water used in the process is soft water, and the waste water generated in the water needling process is reused for production after being treated by reuse water engineering.
And (5) rolling and drying: in order to reduce the energy consumption of drying, the fiber web after vacuum suction is further rolled and dried, a pair of rollers are adopted for mutual extrusion, water in the middle non-woven fabric is rolled and dried, and the generated wastewater is recycled for production after being treated by recycling water engineering.
And (3) drying: the formed web was fed into a twin cylinder dryer and dried by hot air (140 c) generated by heating with natural gas to a moisture regain of 7.0%.
And (3) rolling: and (5) winding and rolling the non-woven fabric product by using an automatic winding machine, wherein the winding machine Ji Miding is long, the fixed length is automatically stopped, and the roll is automatically replaced.
And (3) cloth inspection: and (5) performing spot check on the product by using check equipment, and detecting gram weight, thickness, strength and the like.
Cutting: and cutting the wound non-woven fabric on a cutting machine according to the size requirement of a customer.
And (3) a finished product: and packaging and warehousing the qualified products after quality inspection.
Example 3
A functional non-woven fabric is prepared by the following method:
feeding: adding terylene and viscose fiber in sequence, wherein the proportion of the terylene to the viscose fiber is 60:40.
clearing: each production line mainly comprises three electronic weighing bale openers, a pre-opener, a large cotton mixer, two fine openers, two metal detectors and a pipeline type two-way cotton distributor. The electronic scale unpacking is carried out after polyester and viscose are weighed according to a set proportion, then the preliminary mixing is carried out, the fiber blocks in the raw materials are torn and loosened through the relative motion of a pre-opener middle machine, so that the density of the fiber blocks is reduced, various raw materials are further mixed through a cotton mixer, finally the fiber raw materials are beaten or the fiber layers are penetrated simultaneously through a fine opener beating machine part to carry out segmentation and carding, the bonding force among fibers is destroyed, and the aim of further loosening the fiber blocks is achieved.
Carding: the opened fiber is sent to a carding process through a closed pipeline, and the mixed fiber bundle is carded into a thin net composed of single fibers for laying and lapping and subsequent water jet reinforcement.
Lapping and drafting: the web fed from the carding machine is fed into an emergency cotton sucking and trimming device, and the thin web is laid into a web with a certain thickness and width, and the uniformity of the fiber layer and the consistency of the longitudinal and transverse strength are strictly controlled.
Preparing a water thorn solution: dissolving vitamin C and vitamin E in 25 ℃ water, stirring to dissolve the vitamin C and the vitamin E sufficiently, and diluting the vitamin C and the vitamin E with 15 ℃ water sufficiently to prepare the functional treatment liquid with the vitamin C and the vitamin E concentration of 1.8%.
And (3) water jet: the fiber web is pre-wetted and then enters a water jet area, and a plurality of micro water jet streams are sprayed from water jet holes of a water jet plate of a water jet head and vertically irradiate the fiber web. The water jet displaces a portion of the surface fibers in the web and our formulation is sprayed into the surface, including vertical movement toward the opposite side of the web, and is deflected by the supporting curtain or drum to scatter at different orientations toward the opposite side of the web as the water jet penetrates the web. Under the dual actions of direct impact of water jet and rebound of water jet, the fibers in the fiber net displace, interpenetrate, intertwine and cohesion to form a plurality of flexible intertwining points, so that the fiber net is reinforced. In the water jet step, the number of the water jet heads is 8, the pressures of the first 5 water jet nozzles are 60bar, 70bar, 80bar, 70bar and 65bar in sequence, and the pressures of the last 3 water jet nozzles are 95bar, 100bar and 90bar. The adoption of 8 spray heads and the increase of the pressure of the last 3 spray heads can lead the stress of the fiber web to be more uniform, the non-woven fabric is better in networking, and the jacquard effect is better.
The functional aqueous solution was sprayed onto the web by variable frequency spray heads (24 spray heads per row) and was uniformly permeated into the web from the web surface by vacuum suction. The water used in the process is soft water, and the waste water generated in the water needling process is reused for production after being treated by reuse water engineering.
And (5) rolling and drying: in order to reduce the energy consumption of drying, the fiber web after vacuum suction is further rolled and dried, a pair of rollers are adopted for mutual extrusion, water in the middle non-woven fabric is rolled and dried, and the generated wastewater is recycled for production after being treated by recycling water engineering.
And (3) drying: the formed web was fed into a twin cylinder dryer and dried by hot air (130 ℃) generated by heating with natural gas to a moisture regain of 6.5%.
And (3) rolling: and (5) winding and rolling the non-woven fabric product by using an automatic winding machine, wherein the winding machine Ji Miding is long, the fixed length is automatically stopped, and the roll is automatically replaced.
And (3) cloth inspection: and (5) performing spot check on the product by using check equipment, and detecting gram weight, thickness, strength and the like.
Cutting: and cutting the wound non-woven fabric on a cutting machine according to the size requirement of a customer.
And (3) a finished product: and packaging and warehousing the qualified products after quality inspection.
Experimental example 1
The experimental example is provided with two control groups, and the control groups are basically the same as the embodiment 1, except that the number of the hydro-entangled heads of the control group 1 is 5, namely, the last 3 hydro-entangled heads with high pressure are not provided; the last 3 hydroentangled heads in control group 2 had a pressure of 65bar, respectively. The nonwoven fabric after final production of the two control groups was tested with the nonwoven fabric of example 1, and the results are shown in table 1.
TABLE 1
As can be seen from Table 1, after the number and pressure of the water jet heads are increased, the height test result of the 80 g pearl texture of the control group is obviously higher than that of the 80 g pearl texture of the control group, the height of the pearl texture is increased, and the cleaning and decontamination effects are better on the premise of ensuring skin softness.
Experimental example 2
Two control groups were set in this experimental example, wherein control group 1 was a conventional 80 g pearl nonwoven fabric (moisture regain 8-9%), control group 2 was different from example 1 in that the moisture regain after drying was 8-9%, and the thickness thereof was measured, and the results are shown in table 2.
TABLE 2
As can be seen from Table 2, the moisture regain is about 6.8, the height of the pearl texture of the product in the use process can be better controlled, the packing degree of the product is higher, and the microorganism breeding of the product in the storage process can be better prevented.
Experimental example 3
The experimental example provided a control group, which was different from example 1 only in that the nonwoven fabric after hydroentangled was not sprayed with a functional aqueous solution. The results of measuring the pH and whiteness are shown in tables 3 and 4.
TABLE 3 Table 3
TABLE 4 Table 4
It can be seen from tables 3 and 4 that after the aqueous treatment solution of vitamin C and vitamin E with the concentration of 2% is added into the non-woven fabric, the final product is weak acid, which is favorable for wet dressing and beauty, has strong adsorptivity, can dissolve iodine and the like, and the traditional product process is weak alkaline, so that the function is not provided. The whiteness of the non-woven fabrics prepared by adding the 2% vitamin C and vitamin E aqueous solution is more than 85%.
In addition, the products of the application example 1 and the control group are subjected to iodine solution absorption treatment, the product after adding iodine solution is shown in fig. 2, and the absorption chart after 5 seconds is shown in fig. 3, and as can be seen from fig. 2 and 3, the product prepared in the application example 1 has strong adsorptivity, is weak acid and can dissolve iodine solution, and is more suitable for skin.
In summary, one embodiment of the present application has the following advantages:
the functional treatment agent comprising vitamin C and vitamin E is added in the water needling step to spray and suck the non-woven fabric fiber web, so that the functional water solution uniformly permeates into the fiber web from the surface of the fiber web, the treatment agent can enable the finally produced non-woven fabric to have weak acidity and higher whiteness, wet dressing is more facilitated when the non-woven fabric is used as a face towel, sweat and garbage on skin have better adsorptivity, and the effect of beautifying is achieved.
In addition, the water jet nozzle and the final water jet pressure are increased in the water jet step, the height of the produced non-woven fabric texture is increased, and the effects of cleaning, decontamination and the like are better on the premise of ensuring skin softness.
The embodiments described above are some, but not all, of the embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

Claims (8)

1. The production process of the functional non-woven fabric is characterized by comprising the following steps of:
mixing, opening, carding, lapping and drafting the terylene and the viscose fiber to obtain a fiber net;
pre-wetting the fiber net, and then performing water needling treatment; spraying functional aqueous solution containing vitamin C and vitamin E on the fiber net after hydroentangled, and carrying out vacuum suction on the fiber net to obtain a non-woven fabric semi-finished product;
rolling, drying, detecting and cutting the non-woven fabric semi-finished product to obtain the functional non-woven fabric.
2. The process for producing a functional nonwoven fabric according to claim 1, wherein the ratio of polyester to viscose fiber is (60-70): (30-40).
3. The process for producing a functional nonwoven fabric according to claim 1, wherein the number of the spray heads in the water jet treatment step is 8, the pressure of the first 5 spray heads is 60-80bar, and the pressure of the last 3 spray heads is 90-100bar.
4. The process for producing a functional nonwoven fabric according to claim 3, wherein the functional aqueous solution is prepared by the following method: dissolving vitamin C and vitamin E in water of 20-45deg.C, dissolving completely and uniformly, and diluting to obtain functional water solution.
5. The process for producing a functional nonwoven fabric according to claim 4, wherein the concentration of vitamin C and vitamin E in the functional aqueous solution is 1.5-2.5%.
6. The process for producing a functional nonwoven fabric according to claim 4, wherein the aqueous solution used for the hydroentanglement is at a temperature of 12-18 ℃.
7. The process for producing a functional nonwoven fabric according to claim 1, wherein the drying temperature is 130-140 ℃, and the moisture regain of the dried nonwoven fabric is 6.5-7%.
8. A functional nonwoven fabric, characterized in that it is produced by the production process according to any one of claims 1 to 7.
CN202310426444.0A 2023-04-19 2023-04-19 Functional non-woven fabric and production process thereof Pending CN116446104A (en)

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