CN102704179A - High-intensity moisture permeable warp knitting layered mesh cloth based on mixed chemical fiber - Google Patents
High-intensity moisture permeable warp knitting layered mesh cloth based on mixed chemical fiber Download PDFInfo
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Abstract
The invention relates to high-intensity moisture permeable warp knitting layered mesh cloth based on mixed chemical fiber. Through the mutual combination of fiber modification, fabric coating and warp knitting technology, the technical defects of roughness, poor comfort and processing difficulty of the chemical fiber warp knitting layered mesh cloth in the prior art are overcome, and the beneficial effects of low cost, high added value, high-degree excellent moisture regain, moisture absorptivity, high intensity, high elasticity, good product dimension stability and good hand feeling style are reached.
Description
Technical field
The invention belongs to stratiform through the volume processing technique field, particularly high-strength wet through compiling the machining field of stratiform screen cloth, relate in particular to a kind of high-strength wet warp and compile the stratiform screen cloth based on the mixed type chemical fibre.
Background technology
At present, three-layer mesh fabric is as knitting, tatting or non-woven fabric, is the two-layer fabrics that on two needle-bars, forms of the yarn by different material or fineness, has a certain thickness tricot with what the connection yarn of all lengths fineness coupled together between the two.
Therefore its structure generally includes three layers; Be upper epidermis, following top layer and wall, upper epidermis has the hollow out decorative pattern usually with following top layer, and wall is connected in upper epidermis, is formed between the top layer down by monofilament; Total has certain elasticity; And good air permeability, but use raw material chemical fibre own usually moisture absorption and permeability poor, the improvement of the comfortableness of the total fabric that brings is less.
Along with the continuous development of chemical fibres industry technical merit and improving constantly of people's quality of life; People also more and more pay attention to the pursuit of color, feel, style, moisture absorption, high powerful and comfort etc. to garment material; In order to adapt to people's demand; The various new synthetic fiber of making of employing new technology constantly come out, and various functional treatments also emerge in an endless stream.Profile fibre knitted fabric is a kind of knit fabric with moisture absorbing and sweat releasing, dry cooling function, high ventilation, leads wet, softness, is widely used in sportswear, leisure wear and summer clothes etc., has bright development prospect.
It is single-layered weave structure that present domestic application terylene profiled filament or other new material are produced moisture absorbing and sweat releasing knit fabric majority, and the capillary effect of its moisture sorption effect is generally about 10cm.The production technology of lining also has influence on the interior quality and the exterior quality of lining, and is particularly most important to the research of the process conditions of the pre-treatment of fabric, dyeing, moisture absorption, high powerful, comfort and back arrangement etc.
Chinese patent prospectus CN200720128026 discloses a kind of novel three-layer mesh fabric gum shoes surfacing material, comprises three layers of terylene thread, and wherein one deck is to be processed by the terylene thread layer that scribbles aluminium or silver at least; During it comprises following three layers.Can select aluminising or silver on the terylene thread of any specification according to actual needs for use, in order to make this lining.The present invention is difficult for sticking dust, and under the irradiation of light, has strong visual impression light effect, and is silver-shiny.In addition, the netted and color of vamp can free conversion.But the technology of the pre-treatment of the fabric of itself, dyeing, moisture absorption, high powerful, comfort and back arrangement etc. is and relates to, and is very limited to performance improvement.
Chinese patent 200810072509; Related to a kind of process for producing coated mesh fabric; It is characterized in that: said preparation technology is: grey cloth is carried out preheating through preheating pressing device plate on dispensing device, get rid of the moisture and other micromolecule volatile materials that contain in the fabric, the grey cloth after then preheating being plated pads to stick with paste on the vertical scraper to be handled; Get into vertical baking oven preplasticizing; The grey cloth pressing cooling back first road level that gets into after the plasticizing Gel Treatment is coated with head and carries out the bottom surface coating process, entering baking oven preplasticizing gel, cooling and shaping; Be coated with head through second road again and carry out the surface layer coating, through the plasticizing baking oven, accomplish plasticizing process at last; Cloth after coating is accomplished through embossing, cool off, batch, utilize surface treating machine to carry out the surface treatment of product, apply one deck anticorrosive resin paint at coating surface, reach anti-fouling and self-cleaning and improve outdoor serviceability; But this fabric can't solve effectively common three-layer mesh fabric hygroscopicity difference problem, improve the wearability of product.
Chinese patent 200910112291 and 200920139662; Related to a kind of three-layer mesh fabric that improves moisture pick-up properties; Comprise by yarn and it is characterized in that with the upper epidermis that is made into through the volume mode, top layer and be connected in the wall between the two down: said formation upper epidermis and/or down the top layer comb respectively that to have a comb yarn in the yarn at least be Nylon-6 Hydrofil silk; But Density, network structure are all undesirable, can't realize the comfortableness effect that it is corresponding.
Chinese patent 200910112292; Related to a kind of three-layer mesh fabric with excellent moisture absorption property; Comprise by yarn and it is characterized in that with the upper epidermis that is made into through the volume mode, top layer and be connected in the wall between the two down: said formation upper epidermis and/or down the top layer comb respectively that to have a comb yarn in the yarn at least be hemp yarn.Select for use hemp yarn to interweave in three-layer mesh fabric, under the situation that does not influence other performance indications of three-layer mesh fabric, improved the hygroscopicity of three-layer mesh fabric greatly.But the own strength, elastic of flax fibre etc. is inferior to chemical fibre, and the preparation fabric is short service life, weak effect;
Chinese patent 200920139675 has related to a kind of three-layer mesh fabric with excellent moisture absorption property, comprises by yarn it is characterized in that: select other natural fabric for use with the upper epidermis that is made into through the volume mode, top layer and be connected in the wall between the two down.Select for use hemp yarn to interweave in three-layer mesh fabric, under the situation that does not influence other performance indications of three-layer mesh fabric, improved the hygroscopicity of three-layer mesh fabric greatly.But passing through the defective of wet and weaving, the intensity of same natural fabric itself make its weak effect and service life lack.
Along with the application with various new materials that improves constantly of homemade screen cloth production technology, increased severely through netting cloth market demand in recent years, performance boost is very fast.Following through the not bigger variation of netting cloth structure, but aspect quality, will improve a lot, functional screen cloth, high-performance are taken the demand of material all can sustainable growth.The three-layer mesh fabrics such as Nylon-6 Hydrofil of Jinjiang China space research and development; Has good hygroscopicity with defeated moist; Solved the problem of common three-layer mesh fabric moisture absorption difference, improved the wearability of product, obtained further raising and perfect in production and technology; Obtained old and new users's approval, broad market prospect.Company relies on old dam footwear material screen cloth market and bag market, Quanzhou simultaneously, and product is mainly sold to provinces and cities such as Guangdong, Zhejiang, Shanghai, Jiangsu, Shandong, Hebei, Henan and Hubei also rapidly to the domestic and international market radiation.Product has begun to sell to Southeast Asia, European Union and North America market at present.
Therefore, select the fabric of modification chemical fibre for use, especially laminate fabric is a futurity industry, and textile industry and the fabric of taking the extensive needs of industry are researched and developed the innovation that this fabric certainly will bring multilayer screen cloth technical field, also will bring new variation.
Summary of the invention
The object of the invention provides a kind of being correlated with to improve processing step and the high-strength wet warp volume stratiform screen cloth processed technology based on the mixed type chemical fibre of optimizing relevant optimal parameter; Good softness is compared in acquisition with natural fabric material, stratiform wet, high-strength, plentiful and that comfort property is good is weaved cotton cloth thoroughly; Utilize fibre modification, fabric coating, through mutually combining of volumes technology solved chemical fibre of the prior art the stratiform screen cloth is coarse through compiling, comfortableness difference and being difficult for is processed technological deficiency; Low-cost high added value and highly good regain, hygroscopicity, high strength have been reached, the useful advantage that the DIMENSIONAL STABILITY of high elasticity, product is good and the feel style is excellent.
For realizing above-mentioned purpose, the present invention realizes through following technical scheme:
A kind of high-strength wet warp based on the mixed type chemical fibre of the present invention is compiled the stratiform screen cloth; It is characterized in that, should comprise at least through compiling the stratiform screen cloth that ground floor contained tricot and the 3rd layer of three dimensional fabric through the three-decker of the tricot that contains the modification chemical fibre of coating processing that the tricot of modification chemical fibre, the second layer are handled through coating based on the high-strength wet of mixed type chemical fibre; Wherein, The tricot and the second layer that ground floor contains the modification chemical fibre interweave through the nylon fiber that is provided with the hygroscopic coatings processing between the tricot that coating is handled, and tricot and the 3rd layer of tricot of handling through coating that contains the modification chemical fibre that the second layer is handled through coating interweave through the polyster fibre that is provided with said hygroscopic coatings processing.
Wherein: get said high-strength wet the preparation through following step successively through the three-decker of compiling the stratiform screen cloth based on the mixed type chemical fibre:
Step 1: ground floor contains the preparation of the tricot of modification chemical fibre, and this modification chemical fibre is sandwich layer with the polyester, and getting blend with polyester, cellulose esters and water-soluble modified polymer resin is cortex; Sandwich layer melt and the cortex melt extruded through two single-screw extrusion machines respectively get into composite special-shaped filament spinning component through the length ratio for the distribution duct of 2:3 respectively, and two kinds of melts are respectively through obtaining this modification chemical fibre by the special-shaped spinnerets that is evenly distributed with cross cross section spinneret orifice after the measuring pump accurate measurement separately; Wherein, the single-screw extrusion machine of fusion sandwich layer melt divides two district's temperature-control pressure-controls, and the temperature in a district is that 265-268 ℃, pressure are 12 ± 0.5MPa; The temperature in two districts is that 255-258 ℃, pressure are 13 ± 0.5MPa; The single-screw extrusion machine of fusion cortex melt divides three district's temperature-control pressure-controls, and the temperature in a district is that 195-197 ℃, pressure are 10MPa; The temperature in two districts is that 205-207 ℃, pressure are 9MPa; The temperature in three districts is that 225-227 ℃, pressure are 10MPa; Obtain the tricot that this modification chemical fibre braiding ground floor contains the modification chemical fibre by special-shaped spinnerets then; Wherein, the tricot that this ground floor contains the modification chemical fibre adopts 22 line braidings, knitting needle to classify a high position as and even number is classified low level as separately at odd number, produces ultra-thin mesh tissue; In each mesh; Article two, relative limit is made up of the wale of warp knitting fabrics, and in addition two limits are made up of the underlap of wale, and the area of each mesh is 0.018 square millimeter;
Step 2: the second layer is through the preparation of the tricot of coating processing; It with the raw fiber modification chemical fibre in the above-mentioned steps one; Adopt 31 line braidings, knitting needle odd number to classify a high position and even number as and classify the room as and weave tricot separately, the tricot cloth cover after the braiding produces two at a distance from two ultra-thin fine texture; Then polyurethane particles, hydrophilic chain extender, organic solvent are put into the microwave electromagnetic shaker simultaneously; In temperature is that 45～47 ℃ of even down stirrings obtained the homogeneous mixed solution after 15 minutes; Wherein the adding weight ratio of polyurethane particles, hydrophilic chain extender, organic solvent is 1:1.5:7; Said homogeneous mixed solution evenly is coated on the tricot of above-mentioned ultra-thin fine texture, carries out 30～33 ℃ of low temperature dryings then, promptly get the tricot that the second layer is handled through coating;
Step 3: the 3rd layer of preparation through the tricot that contains the modification chemical fibre of coating processing; Polyurethane particles, hydrophilic chain extender, organic solvent are put into the microwave electromagnetic shaker simultaneously; In temperature is that 45～47 ℃ of even down stirrings obtained the homogeneous mixed solution after 15 minutes; Wherein the adding weight ratio of polyurethane particles, hydrophilic chain extender, organic solvent is 1:1:9; The ground floor that said homogeneous mixed solution evenly is coated to above-mentioned steps one contains on the tricot of modification chemical fibre, carries out 30～33 ℃ of low temperature dryings then, promptly gets the 3rd layer of tricot of handling through coating that contains the modification chemical fibre.
Wherein: the single-screw extrusion machine of said fusion sandwich layer melt divides two district's temperature-control pressure-controls, and the temperature in a district is that 267 ℃, pressure are 12MPa; The temperature in two districts is that 257 ℃, pressure are 13MPa; The single-screw extrusion machine of fusion cortex melt divides three district's temperature-control pressure-controls, and the temperature in a district is that 196 ℃, pressure are 10MPa; The temperature in two districts is that 206 ℃, pressure are 9MPa; The temperature in three districts is that 226 ℃, pressure are 10MPa.
What be worth to propose is: comfortableness property such as the selection of the processing of above-mentioned coating, synthetic fiber modification, special-shaped cross spray silk and chemical fibre raw material, the optimal way of melt extruded control reached intensity, it is wet to pass through, softness are the special effect of the three to four-fold of alternate manner.
Advantage of the present invention and effect can not only overcome the deficiency of prior art, the post processing of finalizing the design of the not needs that can realize meeting high-grade stratiform screen cloth, and operation is practiced thrift in environmental protection, increases added value.
The specific embodiment
Below in conjunction with the specific embodiment, further set forth the present invention.
Embodiment 1:
A kind of high-strength wet warp based on the mixed type chemical fibre is compiled the stratiform screen cloth; It is characterized in that, should comprise at least through compiling the stratiform screen cloth that ground floor contained tricot and the 3rd layer of three dimensional fabric through the three-decker of the tricot that contains the modification chemical fibre of coating processing that the tricot of modification chemical fibre, the second layer are handled through coating based on the high-strength wet of mixed type chemical fibre; Wherein, The tricot and the second layer that ground floor contains the modification chemical fibre interweave through the nylon fiber that is provided with the hygroscopic coatings processing between the tricot that coating is handled, and tricot and the 3rd layer of tricot of handling through coating that contains the modification chemical fibre that the second layer is handled through coating interweave through the polyster fibre that is provided with said hygroscopic coatings processing.
Embodiment 2:
A kind of high-strength wet warp based on the mixed type chemical fibre is compiled the stratiform screen cloth; It is characterized in that, should comprise at least through compiling the stratiform screen cloth that ground floor contained tricot and the 3rd layer of three dimensional fabric through the three-decker of the tricot that contains the modification chemical fibre of coating processing that the tricot of modification chemical fibre, the second layer are handled through coating based on the high-strength wet of mixed type chemical fibre; Wherein, The tricot and the second layer that ground floor contains the modification chemical fibre interweave through the nylon fiber that is provided with the hygroscopic coatings processing between the tricot that coating is handled, and tricot and the 3rd layer of tricot of handling through coating that contains the modification chemical fibre that the second layer is handled through coating interweave through the polyster fibre that is provided with said hygroscopic coatings processing; Get said high-strength wet the preparation through following step successively through the three-decker of compiling the stratiform screen cloth based on the mixed type chemical fibre:
Step 1: ground floor contains the preparation of the tricot of modification chemical fibre, and this modification chemical fibre is sandwich layer with the polyester, and getting blend with polyester, cellulose esters and water-soluble modified polymer resin is cortex; Sandwich layer melt and the cortex melt extruded through two single-screw extrusion machines respectively get into composite special-shaped filament spinning component through the length ratio for the distribution duct of 2:3 respectively, and two kinds of melts are respectively through obtaining this modification chemical fibre by the special-shaped spinnerets that is evenly distributed with cross cross section spinneret orifice after the measuring pump accurate measurement separately; Wherein, the single-screw extrusion machine of fusion sandwich layer melt divides two district's temperature-control pressure-controls, and the temperature in a district is that 265-268 ℃, pressure are 12 ± 0.5MPa; The temperature in two districts is that 255-258 ℃, pressure are 13 ± 0.5MPa; The single-screw extrusion machine of fusion cortex melt divides three district's temperature-control pressure-controls, and the temperature in a district is that 195-197 ℃, pressure are 10MPa; The temperature in two districts is that 205-207 ℃, pressure are 9MPa; The temperature in three districts is that 225-227 ℃, pressure are 10MPa; Obtain the tricot that this modification chemical fibre braiding ground floor contains the modification chemical fibre by special-shaped spinnerets then; Wherein, the tricot that this ground floor contains the modification chemical fibre adopts 22 line braidings, knitting needle to classify a high position as and even number is classified low level as separately at odd number, produces ultra-thin mesh tissue; In each mesh; Article two, relative limit is made up of the wale of warp knitting fabrics, and in addition two limits are made up of the underlap of wale, and the area of each mesh is 0.018 square millimeter;
Step 2: the second layer is through the preparation of the tricot of coating processing; It with the raw fiber modification chemical fibre in the above-mentioned steps one; Adopt 31 line braidings, knitting needle odd number to classify a high position and even number as and classify the room as and weave tricot separately, the tricot cloth cover after the braiding produces two at a distance from two ultra-thin fine texture; Then polyurethane particles, hydrophilic chain extender, organic solvent are put into the microwave electromagnetic shaker simultaneously; In temperature is that 45～47 ℃ of even down stirrings obtained the homogeneous mixed solution after 15 minutes; Wherein the adding weight ratio of polyurethane particles, hydrophilic chain extender, organic solvent is 1:1.5:7; Said homogeneous mixed solution evenly is coated on the tricot of above-mentioned ultra-thin fine texture, carries out 30～33 ℃ of low temperature dryings then, promptly get the tricot that the second layer is handled through coating;
Step 3: the 3rd layer of preparation through the tricot that contains the modification chemical fibre of coating processing; Polyurethane particles, hydrophilic chain extender, organic solvent are put into the microwave electromagnetic shaker simultaneously; In temperature is that 45～47 ℃ of even down stirrings obtained the homogeneous mixed solution after 15 minutes; Wherein the adding weight ratio of polyurethane particles, hydrophilic chain extender, organic solvent is 1:1:9; The ground floor that said homogeneous mixed solution evenly is coated to above-mentioned steps one contains on the tricot of modification chemical fibre, carries out 30～33 ℃ of low temperature dryings then, promptly gets the 3rd layer of tricot of handling through coating that contains the modification chemical fibre.
Embodiment 3:
A kind of high-strength wet warp based on the mixed type chemical fibre is compiled the stratiform screen cloth; It is characterized in that, should comprise at least through compiling the stratiform screen cloth that ground floor contained tricot and the 3rd layer of three dimensional fabric through the three-decker of the tricot that contains the modification chemical fibre of coating processing that the tricot of modification chemical fibre, the second layer are handled through coating based on the high-strength wet of mixed type chemical fibre; Wherein, The tricot and the second layer that ground floor contains the modification chemical fibre interweave through the nylon fiber that is provided with the hygroscopic coatings processing between the tricot that coating is handled, and tricot and the 3rd layer of tricot of handling through coating that contains the modification chemical fibre that the second layer is handled through coating interweave through the polyster fibre that is provided with said hygroscopic coatings processing; Get said high-strength wet the preparation through following step successively through the three-decker of compiling the stratiform screen cloth based on the mixed type chemical fibre:
Step 1: ground floor contains the preparation of the tricot of modification chemical fibre, and this modification chemical fibre is sandwich layer with the polyester, and getting blend with polyester, cellulose esters and water-soluble modified polymer resin is cortex; Sandwich layer melt and the cortex melt extruded through two single-screw extrusion machines respectively get into composite special-shaped filament spinning component through the length ratio for the distribution duct of 2:3 respectively, and two kinds of melts are respectively through obtaining this modification chemical fibre by the special-shaped spinnerets that is evenly distributed with cross cross section spinneret orifice after the measuring pump accurate measurement separately; Wherein, the single-screw extrusion machine of fusion sandwich layer melt divides two district's temperature-control pressure-controls, and the temperature in a district is that 265-268 ℃, pressure are 12 ± 0.5MPa; The temperature in two districts is that 257 ℃, pressure are 13 ± 0.5MPa; The single-screw extrusion machine of fusion cortex melt divides three district's temperature-control pressure-controls, and the temperature in a district is that 196 ℃, pressure are 10MPa; The temperature in two districts is that 205-207 ℃, pressure are 9MPa; The temperature in three districts is that 225-227 ℃, pressure are 10MPa; Obtain the tricot that this modification chemical fibre braiding ground floor contains the modification chemical fibre by special-shaped spinnerets then; Wherein, the tricot that this ground floor contains the modification chemical fibre adopts 22 line braidings, knitting needle to classify a high position as and even number is classified low level as separately at odd number, produces ultra-thin mesh tissue; In each mesh; Article two, relative limit is made up of the wale of warp knitting fabrics, and in addition two limits are made up of the underlap of wale, and the area of each mesh is 0.018 square millimeter;
Step 2: the second layer is through the preparation of the tricot of coating processing; It with the raw fiber modification chemical fibre in the above-mentioned steps one; Adopt 31 line braidings, knitting needle odd number to classify a high position and even number as and classify the room as and weave tricot separately, the tricot cloth cover after the braiding produces two at a distance from two ultra-thin fine texture; Then polyurethane particles, hydrophilic chain extender, organic solvent are put into the microwave electromagnetic shaker simultaneously; In temperature is that 45～47 ℃ of even down stirrings obtained the homogeneous mixed solution after 15 minutes; Wherein the adding weight ratio of polyurethane particles, hydrophilic chain extender, organic solvent is 1:1.5:7; Said homogeneous mixed solution evenly is coated on the tricot of above-mentioned ultra-thin fine texture, carries out 30～33 ℃ of low temperature dryings then, promptly get the tricot that the second layer is handled through coating;
Step 3: the 3rd layer of preparation through the tricot that contains the modification chemical fibre of coating processing; Polyurethane particles, hydrophilic chain extender, organic solvent are put into the microwave electromagnetic shaker simultaneously; In temperature is that 45～47 ℃ of even down stirrings obtained the homogeneous mixed solution after 15 minutes; Wherein the adding weight ratio of polyurethane particles, hydrophilic chain extender, organic solvent is 1:1:9; The ground floor that said homogeneous mixed solution evenly is coated to above-mentioned steps one contains on the tricot of modification chemical fibre, carries out 30～33 ℃ of low temperature dryings then, promptly gets the 3rd layer of tricot of handling through coating that contains the modification chemical fibre.
Embodiment 4:
A kind of high-strength wet warp based on the mixed type chemical fibre is compiled the stratiform screen cloth; It is characterized in that, should comprise at least through compiling the stratiform screen cloth that ground floor contained tricot and the 3rd layer of three dimensional fabric through the three-decker of the tricot that contains the modification chemical fibre of coating processing that the tricot of modification chemical fibre, the second layer are handled through coating based on the high-strength wet of mixed type chemical fibre; Wherein, The tricot and the second layer that ground floor contains the modification chemical fibre interweave through the nylon fiber that is provided with the hygroscopic coatings processing between the tricot that coating is handled, and tricot and the 3rd layer of tricot of handling through coating that contains the modification chemical fibre that the second layer is handled through coating interweave through the polyster fibre that is provided with said hygroscopic coatings processing; Get said high-strength wet the preparation through following step successively through the three-decker of compiling the stratiform screen cloth based on the mixed type chemical fibre:
Step 1: ground floor contains the preparation of the tricot of modification chemical fibre, and this modification chemical fibre is sandwich layer with the polyester, and getting blend with polyester, cellulose esters and water-soluble modified polymer resin is cortex; Sandwich layer melt and the cortex melt extruded through two single-screw extrusion machines respectively get into composite special-shaped filament spinning component through the length ratio for the distribution duct of 2:3 respectively, and two kinds of melts are respectively through obtaining this modification chemical fibre by the special-shaped spinnerets that is evenly distributed with cross cross section spinneret orifice after the measuring pump accurate measurement separately; Wherein, the single-screw extrusion machine of fusion sandwich layer melt divides two district's temperature-control pressure-controls, and the temperature in a district is that 265-268 ℃, pressure are 12 ± 0.5MPa; The temperature in two districts is that 257 ℃, pressure are 13 ± 0.5MPa; The single-screw extrusion machine of fusion cortex melt divides three district's temperature-control pressure-controls, and the temperature in a district is that 196 ℃, pressure are 10MPa; The temperature in two districts is that 205-207 ℃, pressure are 9MPa; The temperature in three districts is that 225-227 ℃, pressure are 10MPa; Obtain the tricot that this modification chemical fibre braiding ground floor contains the modification chemical fibre by special-shaped spinnerets then; Wherein, the tricot that this ground floor contains the modification chemical fibre adopts 22 line braidings, knitting needle to classify a high position as and even number is classified low level as separately at odd number, produces ultra-thin mesh tissue; In each mesh; Article two, relative limit is made up of the wale of warp knitting fabrics, and in addition two limits are made up of the underlap of wale, and the area of each mesh is 0.018 square millimeter;
Step 2: the second layer is through the preparation of the tricot of coating processing; It with the raw fiber modification chemical fibre in the above-mentioned steps one; Adopt 31 line braidings, knitting needle odd number to classify a high position and even number as and classify the room as and weave tricot separately, the tricot cloth cover after the braiding produces two at a distance from two ultra-thin fine texture; Then polyurethane particles, hydrophilic chain extender, organic solvent are put into the microwave electromagnetic shaker simultaneously; In temperature is that 45～47 ℃ of even down stirrings obtained the homogeneous mixed solution after 15 minutes; Wherein the adding weight ratio of polyurethane particles, hydrophilic chain extender, organic solvent is 1:1.5:7; Said homogeneous mixed solution evenly is coated on the tricot of above-mentioned ultra-thin fine texture, carries out 30～33 ℃ of low temperature dryings then, promptly get the tricot that the second layer is handled through coating;
Step 3: the 3rd layer of preparation through the tricot that contains the modification chemical fibre of coating processing; Polyurethane particles, hydrophilic chain extender, organic solvent are put into the microwave electromagnetic shaker simultaneously; In temperature is that 45～47 ℃ of even down stirrings obtained the homogeneous mixed solution after 15 minutes; Wherein the adding weight ratio of polyurethane particles, hydrophilic chain extender, organic solvent is 1:1:9; The ground floor that said homogeneous mixed solution evenly is coated to above-mentioned steps one contains on the tricot of modification chemical fibre, carries out 30～33 ℃ of low temperature dryings then, promptly gets the 3rd layer of tricot of handling through coating that contains the modification chemical fibre; The single-screw extrusion machine of said fusion sandwich layer melt divides two district's temperature-control pressure-controls, and the temperature in a district is that 267 ℃, pressure are 12MPa; The temperature in two districts is that 257 ℃, pressure are 13MPa; The single-screw extrusion machine of fusion cortex melt divides three district's temperature-control pressure-controls, and the temperature in a district is that 196 ℃, pressure are 10MPa; The temperature in two districts is that 206 ℃, pressure are 9MPa; The temperature in three districts is that 226 ℃, pressure are 10MPa.
The present invention is not limited to above-mentioned specific embodiment, is not deviating under spirit of the present invention and the nature thereof, and the those skilled in the art can make various corresponding changes and distortion according to the present invention.These corresponding changes and distortion all should belong within the protection domain of accompanying claims of the present invention.
Claims (3)
1. the high-strength wet warp based on the mixed type chemical fibre is compiled the stratiform screen cloth; It is characterized in that, should comprise at least through compiling the stratiform screen cloth that ground floor contained tricot and the 3rd layer of three dimensional fabric through the three-decker of the tricot that contains the modification chemical fibre of coating processing that the tricot of modification chemical fibre, the second layer are handled through coating based on the high-strength wet of mixed type chemical fibre; Wherein, The tricot and the second layer that ground floor contains the modification chemical fibre interweave through the nylon fiber that is provided with the hygroscopic coatings processing between the tricot that coating is handled, and tricot and the 3rd layer of tricot of handling through coating that contains the modification chemical fibre that the second layer is handled through coating interweave through the polyster fibre that is provided with said hygroscopic coatings processing.
2. the high-strength wet preparation method through volume stratiform screen cloth based on the mixed type chemical fibre according to claim 1 is characterized in that, the three-decker that said high-strength wet warp based on the mixed type chemical fibre is compiled the stratiform screen cloth gets through following step preparation successively:
Step 1: ground floor contains the preparation of the tricot of modification chemical fibre, and this modification chemical fibre is sandwich layer with the polyester, and getting blend with polyester, cellulose esters and water-soluble modified polymer resin is cortex; Sandwich layer melt and the cortex melt extruded through two single-screw extrusion machines respectively get into composite special-shaped filament spinning component through the length ratio for the distribution duct of 2:3 respectively, and two kinds of melts are respectively through obtaining this modification chemical fibre by the special-shaped spinnerets that is evenly distributed with cross cross section spinneret orifice after the measuring pump accurate measurement separately; Wherein, the single-screw extrusion machine of fusion sandwich layer melt divides two district's temperature-control pressure-controls, and the temperature in a district is that 265-268 ℃, pressure are 12 ± 0.5MPa; The temperature in two districts is that 255-258 ℃, pressure are 13 ± 0.5MPa; The single-screw extrusion machine of fusion cortex melt divides three district's temperature-control pressure-controls, and the temperature in a district is that 195-197 ℃, pressure are 10MPa; The temperature in two districts is that 205-207 ℃, pressure are 9MPa; The temperature in three districts is that 225-227 ℃, pressure are 10MPa; Obtain the tricot that this modification chemical fibre braiding ground floor contains the modification chemical fibre by special-shaped spinnerets then; Wherein, the tricot that this ground floor contains the modification chemical fibre adopts 22 line braidings, knitting needle to classify a high position as and even number is classified low level as separately at odd number, produces ultra-thin mesh tissue; In each mesh; Article two, relative limit is made up of the wale of warp knitting fabrics, and in addition two limits are made up of the underlap of wale, and the area of each mesh is 0.018 square millimeter;
Step 2: the second layer is through the preparation of the tricot of coating processing; It with the raw fiber modification chemical fibre in the above-mentioned steps one; Adopt 31 line braidings, knitting needle odd number to classify a high position and even number as and classify the room as and weave tricot separately, the tricot cloth cover after the braiding produces two at a distance from two ultra-thin fine texture; Then polyurethane particles, hydrophilic chain extender, organic solvent are put into the microwave electromagnetic shaker simultaneously; In temperature is that 45～47 ℃ of even down stirrings obtained the homogeneous mixed solution after 15 minutes; Wherein the adding weight ratio of polyurethane particles, hydrophilic chain extender, organic solvent is 1:1.5:7; Said homogeneous mixed solution evenly is coated on the tricot of above-mentioned ultra-thin fine texture, carries out 30～33 ℃ of low temperature dryings then, promptly get the tricot that the second layer is handled through coating;
Step 3: the 3rd layer of preparation through the tricot that contains the modification chemical fibre of coating processing; Polyurethane particles, hydrophilic chain extender, organic solvent are put into the microwave electromagnetic shaker simultaneously; In temperature is that 45～47 ℃ of even down stirrings obtained the homogeneous mixed solution after 15 minutes; Wherein the adding weight ratio of polyurethane particles, hydrophilic chain extender, organic solvent is 1:1:9; The ground floor that said homogeneous mixed solution evenly is coated to above-mentioned steps one contains on the tricot of modification chemical fibre, carries out 30～33 ℃ of low temperature dryings then, promptly gets the 3rd layer of tricot of handling through coating that contains the modification chemical fibre.
3. according to claim 2ly it is characterized in that through compiling the preparation method of stratiform screen cloth that based on the high-strength wet of mixed type chemical fibre the single-screw extrusion machine of said fusion sandwich layer melt divides two district's temperature-control pressure-controls, the temperature in a district is that 267 ℃, pressure are 12MPa; The temperature in two districts is that 257 ℃, pressure are 13MPa; The single-screw extrusion machine of fusion cortex melt divides three district's temperature-control pressure-controls, and the temperature in a district is that 196 ℃, pressure are 10MPa; The temperature in two districts is that 206 ℃, pressure are 9MPa; The temperature in three districts is that 226 ℃, pressure are 10MPa.
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| CN102704179B (en) | 2013-11-06 |
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