CN118109959A - Super-roof and super-light thermal wadding material and preparation method thereof - Google Patents
Super-roof and super-light thermal wadding material and preparation method thereof Download PDFInfo
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- CN118109959A CN118109959A CN202410371705.8A CN202410371705A CN118109959A CN 118109959 A CN118109959 A CN 118109959A CN 202410371705 A CN202410371705 A CN 202410371705A CN 118109959 A CN118109959 A CN 118109959A
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- 239000000463 material Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 121
- 238000009413 insulation Methods 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 44
- 229920000742 Cotton Polymers 0.000 claims abstract description 30
- 239000004744 fabric Substances 0.000 claims abstract description 26
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 24
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 238000005516 engineering process Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 3
- 229920000728 polyester Polymers 0.000 claims description 42
- 238000002156 mixing Methods 0.000 claims description 16
- 238000004049 embossing Methods 0.000 claims description 15
- 229920004933 Terylene® Polymers 0.000 claims description 10
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000004753 textile Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 2
- 239000004626 polylactic acid Substances 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 48
- 239000000203 mixture Substances 0.000 abstract description 11
- 239000011229 interlayer Substances 0.000 abstract description 4
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 238000005406 washing Methods 0.000 description 8
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- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 210000002268 wool Anatomy 0.000 description 5
- 239000012774 insulation material Substances 0.000 description 4
- 210000003746 feather Anatomy 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013007 heat curing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000011231 Crohn disease Diseases 0.000 description 1
- HGINCPLSRVDWNT-UHFFFAOYSA-N acrylaldehyde Natural products C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/02—Cotton wool; Wadding
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-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
- D04H1/54—Non-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 by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/55—Polyesters
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-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
- D04H1/54—Non-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 by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/555—Non-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 by welding together the fibres, e.g. by partially melting or dissolving by ultrasonic heating
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-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
- D04H1/54—Non-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 by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/559—Non-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 by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C23/00—Making patterns or designs on fabrics
- D06C23/04—Making patterns or designs on fabrics by shrinking, embossing, moiréing, or crêping
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention relates to an ultra-light warm-keeping flocculus material and a preparation method thereof, wherein the preparation method comprises the following steps: (1) opening the cotton blend: firstly, the fibers are opened into hemispherical fiber balls with certain bulk, and then the fiber balls are paved into uniform net shapes through an air-laid technology, so that the middle interlayer is obtained. (2) air laying: and (3) sandwiching the middle layer obtained in the step (1) by using upper light mesh cloth or non-woven fabric and lower non-woven fabric to form the air heat insulation layer. (3) coating and fixing: and reinforcing by using an ultrasonic process to obtain the ultra-awning ultra-light thermal insulation flocculus. According to the method, the opened fiber balls are used as the intermediate layer material of the flocculus, and through multiple heat retention comparison tests, under the condition that the fiber balls with the same fluffiness are adopted for preparation, the heat retention and insulation degree, namely the Crohn value, of the flocculus is higher than that of down, and the thermal retention is good.
Description
Technical Field
The invention relates to the technical field of textile, in particular to an ultra-light warm-keeping flocculus material and a preparation method thereof.
Background
Cotton, wool, down and silk are common thermal insulation materials, and the improvement of the gas phase void ratio of the materials to improve the thermal insulation performance is a common means at present, so that the interlayer filling process is paid attention to the industry. The material and structure of the filling material have important influence on the warm-keeping effect of the warm-keeping material, and the traditional interlayer filling technology has the defects of cold spots, poor elasticity, easy deflection and the like.
For example, chinese patent CN 219010627U discloses "a wool wadding with a sandwich structure", and relates to a wool wadding with a sandwich structure, in which two sides of a wool fiber net are provided with two component fiber layers, so that a low-melting point part in the two components is melted and bonded with adjacent fibers after surface heating, thereby realizing that the fibers can be bonded without using chemical adhesives, and having a good anti-drilling effect. For example, chinese patent CN 218558186U discloses "a zoned multi-layer structure tiled fibrous batt", specifically relates to the field of fibrous batts, by stacking the entire tiled fibrous batt from top to bottom with five layers, wherein the middle layer is between two thirds and one third of the other layers, and during laying, the high grammage area of the tiled fibrous batt is covered at the foot and knee positions, and different areas are selected for laying.
Therefore, the preparation process for developing the thermal insulation material which is ultra-light, thermal insulation, water washing and deformation-free and solves the cold spots meets the market demand, has wide market value and application market, and has positive promotion effect on the development of the thermal insulation material field.
Disclosure of Invention
In order to solve the problems of the existing flocculus, the invention aims to provide an ultra-awning ultra-light thermal insulation flocculus material so as to effectively solve the problems of cold spots, poor elasticity and easy deflection of the existing thermal insulation material mentioned in the background.
In order to achieve the above object, according to one aspect of the present invention, an object of the present invention is to provide a method for preparing an ultra-light thermal insulation wadding material, comprising the following specific steps:
(1) Opening and mixing cotton: firstly, the fibers are opened into hemispherical fiber balls with certain bulk, and then the fiber balls are paved into uniform net shapes through an air-laid technology, so that the middle interlayer is obtained.
(2) Air laying: and (3) sandwiching the middle layer obtained in the step (1) by using upper light mesh cloth or non-woven fabric and lower non-woven fabric to form the air heat insulation layer.
(3) Coating and fixing: and reinforcing by using an ultrasonic process to obtain the ultra-awning ultra-light thermal insulation flocculus.
Further, the three layers of the flocculus are all low-melting-point fibers, the three layers of the flocculus are the same or different fibers, and each layer can be made of two or more low-melting-point fiber composite materials;
Further, batt thickness: the upper layer 1 of the floccule is not less than the lower layer 3 of the floccule and is not more than the middle layer 2 of the floccule; preferably, the thicknesses of the upper layer of the floccule, the lower layer of the floccule and the middle layer of the floccule are respectively 0.01mm-0.2mm;0.01mm-0.2mm;5mm-50mm.
Further, in the step (1), the fibers are polyester fiber balls with different lengths, the bulk is 300-800in3/30g, the fiber length is 25-45mm, and the fineness is 0.5-3.5tex;
Further, in the step (1), the maximum width of the air-laid web is 2.6m.
Further, in the step (1), the cotton opening and mixing process comprises a plurality of opening and balling processes and a secondary opening and mixing process, and specific equipment parameters are that an opening roller is 32-50Hz, a bin nail curtain is 32-45Hz, an opening host machine is 25-35Hz, an opening blower is 25-35Hz, an opening host machine is 25-40Hz and an opening roller is 15-50Hz. The equipment which plays a decisive influence on the fluffiness of the fiber balls is a loosening host machine, a loosening fan, a cotton loosening host machine and a cotton loosening roller.
Further, in the step (2), the upper layer of the flocculus adopts mesh cloth or non-woven fabric, and the gram weight is 5-30g/m 2; the lower layer adopts non-woven fabric, the gram weight is 5-30g/m 2, and the vehicle speed is 2-15m/min.
In the step (2), the mesh cloth and the non-woven fabric are made of terylene, polypropylene, acrylic, nylon, polylactic acid and other low-melting-point fibers, and are preferably terylene.
Further, in the step (3), the maximum welding width of the ultrasonic embossing machine is 2.6m, and the maximum welding speed is 30m/min. The wave head length is 15cm, the wave head pressure is 0.1-0.7N, the distance between ultrasonic points is 5-15cm, and the vehicle speed is 2-15m/min.
Further, in the step (3), the ultrasonic embossing machine adopts a plurality of fixed patterns including single-point, double-point, four-small-point, X-point and the like; preferably, four small-point patterns are adopted for embossing, and the distance between fixed points at the same position between two adjacent patterns is 10cm; each individual four-dot pattern has a four-dot pitch of 3mm.
Further, in the step (3), the production speed of the flocculus is 2-15m/min, and the gram weight is 50-320g/m 2.
According to another aspect of the invention, the invention aims at applying the ultra-awning ultra-light thermal insulation flocculus material obtained by the steps to the fields of clothes, shoes and caps, bedding textile products, outdoor sleeping bags, pillows and the like.
Advantageous effects
1. The opened fiber balls are used as the intermediate layer material of the flocculus, and the thermal insulation degree, namely the Crohn value, of the flocculus is higher than that of the down feather under the condition of adopting the fiber balls with the same fluffiness to prepare the intermediate layer material of the flocculus through a plurality of thermal insulation comparison tests, so that the intermediate layer material has good thermal insulation.
2. The air-laid process is adopted, and the fiber proportions of different specifications of the middle layer are regulated and controlled for multiple times, so that the optimal fluffiness is ensured, and the fluffiness of the flocculus is obviously superior to that of cotton and wool under the condition of the same gram weight. The thermal insulation performance of the flocculus is further improved under the condition of unchanged overall quality. In the two types of flocculus of which the upper layer is made of light and thin mesh cloth or non-woven cloth and the lower layer is made of non-woven cloth, the upper layer non-woven cloth is improved into lighter mesh cloth, the weight of the upper wrapping layer is converted into middle fiber balls to be doped, and the bulk and compression recovery of the flocculus are improved while the integral heat retention of the flocculus is improved.
3. Clean production, no chemical agent addition, no pollution, low carbon and environmental protection.
4. By adopting the air-flow lapping and ultrasonic process, the effective adhesion of the open cotton and the non-woven fabric is ensured while the uniform lapping is ensured, and the problems that the existing flocculus has cold spots and is easy to deviate in washing are solved.
5. By adopting the four-small-dot pattern and matching with various parameters in the steps of the invention, the leakage rate can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will briefly explain the drawings needed in the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of the morphology and structure of an ultra-canopy ultra-light thermal wadding of the present invention;
FIG. 2 is a schematic side morphological structure of the ultra-canopy ultra-light thermal batting of the present invention;
FIG. 3 is a schematic view of the surface morphology and structure of the ultra-awning ultra-light thermal wadding of the present invention;
FIG. 4 is a schematic view of the fixing points of the flakes of the present invention in examples 1,2, 3 and 4;
FIG. 5 is a graph showing the comparison of the leak rate of flakes of examples 1,2, 3 and 4 according to the present invention;
FIG. 6 is a graph showing the comparison of compression recovery, heat retention and wash offset of the flakes of examples 1, 5, 6 and 7 according to the present invention.
FIG. 7 is a graph showing the compression recovery, heat retention and wash bias of the flakes of examples 1 and 8 of the present invention.
FIG. 8 is a graph showing the comparison of the Kroll value and the washing offset of flakes in example 1 and comparative examples 1 and 2 according to the present invention;
In the figure: 1-an upper mesh cloth layer of the flocculus; 2-an intermediate filling layer of flakes; 3-a lower non-woven fabric layer of the flocculus; 4-thermal bonding point of the flakes.
Detailed Description
Hereinafter, the present invention will be described in detail. Before the description, it is to be understood that the terms used in this specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the inventor is allowed to define terms appropriately for the best explanation. Accordingly, the description set forth herein is merely a preferred example for the purpose of illustration and is not intended to limit the scope of the invention, so that it should be understood that other equivalents or modifications may be made thereto without departing from the spirit and scope of the invention.
In addition, the data calculations and line terms involved in this patent are terms of art, and are explained in part as follows: leak rate= (bonding defects/all bonding points) ×100%; crohn's value: the method is used for describing the heat insulation performance of the wadding, namely engineering units of thermal resistance, and the magnitude of the Crohn value represents the heat insulation degree of the fabric; wash offset ratio: wash offset (%) = (area of filler in sample before washing-area of filler in sample after washing)/area of filler in sample before washing x 100%; heat retention rate: an index describing the thermal insulation performance of a fabric, the index being measured by a fabric thermal insulation instrument, the value of which is the percentage of the difference between the electric power consumed without sample coating and the electric power consumed with sample coating in the absence of sample coating at the condition of keeping the thermal body constant temperature, the greater the value, the greater the thermal insulation capability of the fabric. tex: tex, a method of characterizing the thickness of a fiber or yarn. Refers to the weight gram of the fiber or yarn with the length of 1000 meters at the public moisture regain, and the larger the tex is, the thicker the yarn is; compression recovery was tested against FZ/T64003-2011.
Example 1:
the invention provides an ultra-light warm-keeping flocculus with four-small-point fixed ultra-awning.
First, opening the cotton blend
Two kinds of 80% polyester fiber of 3.3tex multiplied by 32mm and 20% polyester fiber of 1.6tex multiplied by 38mm are selected and put into a balling machine, a multi-pass opening balling process is carried out to prepare semi-fiber balls with the bulk degree of 500in3/30g, and then the semi-fiber balls are put into a cotton mixer for secondary fiber opening and mixing processes.
Second step, air-laying
Putting the opened and mixed polyester fibers into an air-flow lapping machine, adjusting the feeding speed to evenly lap the fiber balls, wherein the gram weight is 110g/m 2, and the vehicle speed is 4m/min.
Third step, coating and fixing
The upper layer of the fiber ball net is coated with polyester mesh cloth of 5g/m 2, the lower layer is coated with polyester non-woven fabric with gram weight of 15g/m 2, then the fiber ball net enters an ultrasonic embossing machine, four-small-point fixed patterns are formed by adopting four-small-point rollers, the distance between fixed points is 10cm, and the super-awning super-light thermal insulation flocculus is manufactured.
Example 2:
The invention provides a single-point fixed thermal wadding.
First, opening the cotton blend
Two kinds of 80% polyester fiber of 3.3tex multiplied by 32mm and 20% polyester fiber of 1.6tex multiplied by 38mm are selected and put into a balling machine, a multi-pass opening balling process is carried out to prepare semi-fiber balls with the bulk degree of 500in3/30g, and then the semi-fiber balls are put into a cotton mixer for secondary fiber opening and mixing processes.
Second step, air-laying
Putting the opened and mixed polyester fibers into an air-flow lapping machine, adjusting the feeding speed to evenly lap the fiber balls, wherein the gram weight is 110g/m 2, and the vehicle speed is 4m/min.
Third step, coating and fixing
The method comprises the steps of coating 5g/m 2 of terylene mesh cloth on a fiber web, coating 15g/m 2 of terylene non-woven fabric on a lower layer, then entering an ultrasonic embossing machine, forming single-point fixed patterns by adopting a single-point roller, and obtaining the single-point fixed thermal insulation flocculus, wherein the distance between fixed points is 10 cm.
Example 3:
the invention provides a thermal insulating wadding with double-point fixation.
First, opening the cotton blend
Two kinds of 80% polyester fiber of 3.3tex multiplied by 32mm and 20% polyester fiber of 1.6tex multiplied by 38mm are selected and put into a balling machine, a multi-pass opening balling process is carried out to prepare semi-fiber balls with the bulk degree of 500in3/30g, and then the semi-fiber balls are put into a cotton mixer for secondary fiber opening and mixing processes.
Second step, air-laying
Putting the opened and mixed polyester fibers into an air-flow lapping machine, adjusting the feeding speed to evenly lap the fiber balls, wherein the gram weight is 110g/m 2, and the vehicle speed is 4m/min.
Third step, coating and fixing
The upper layer of the fiber ball net is coated with polyester mesh cloth of 5g/m 2, the lower layer is coated with polyester non-woven fabric with gram weight of 15g/m 2, and then the fiber ball net enters an ultrasonic embossing machine, a double-point fixed pattern is formed by adopting a double-point roller, and the distance between fixed points is 10cm, so that the double-point fixed thermal insulation flocculus is manufactured.
Example 4:
The invention provides a warm-keeping flocculus with fixed X points.
First, opening the cotton blend
Two kinds of 80% polyester fiber of 3.3tex multiplied by 32mm and 20% polyester fiber of 1.6tex multiplied by 38mm are selected and put into a balling machine, a multi-pass opening balling process is carried out to prepare semi-fiber balls with the bulk degree of 500in3/30g, and then the semi-fiber balls are put into a cotton mixer for secondary fiber opening and mixing processes.
Second step, air-laying
Putting the opened and mixed polyester fibers into an air-flow lapping machine, adjusting the feeding speed to evenly lap the fiber balls, wherein the gram weight is 110g/m 2, and the vehicle speed is 4m/min.
Third step, coating and fixing
The method comprises the steps of coating 5g/m 2 of terylene mesh cloth on a fiber web, coating 15g/m 2 of terylene non-woven fabric on a lower layer, then entering an ultrasonic embossing machine, forming four-small-point fixed patterns by adopting an X-point roller, and obtaining the X-point fixed thermal insulation flocculus, wherein the distance between fixed points is 10 cm.
Example 5:
The invention provides a warm-keeping flocculus of coarse/fine polyester fibers fixed at four small points.
First, opening the cotton blend
Two kinds of 80% polyester fiber with 3.3tex multiplied by 32mm and 20% polyester fiber with 1.0tex multiplied by 38mm are selected and put into a balling machine, and after a plurality of opening balling processes, semi-fiber balls with the bulk of 500in3/30g are prepared, and then are put into a cotton mixer, and then the secondary fiber opening and mixing processes of the fiber balls are carried out.
Second step, air-laying
Putting the opened and mixed polyester fibers into an air-flow lapping machine, adjusting the feeding speed to evenly lap the fiber balls, wherein the gram weight is 110g/m 2, and the vehicle speed is 4m/min.
Third step, coating and fixing
The upper layer of the fiber ball net is coated with polyester mesh cloth of 5g/m 2, the lower layer is coated with polyester non-woven fabric with gram weight of 15g/m 2, then the fiber ball net enters an ultrasonic embossing machine, four-small-point fixed patterns are formed by adopting four-small-point rollers, the distance between fixed points is 10cm, and the super-awning super-light thermal insulation flocculus is manufactured.
Example 6:
the invention provides a four-small-point fixed terylene/acrylon thermal insulation flocculus.
First, opening the cotton blend
80% Of 3.3tex multiplied by 32mm and 20% of 1.0tex multiplied by 38mm terylene and acrylic fibers are selected to be placed into a balling machine, a multi-opening balling process is carried out to prepare semi-fiber balls with the bulk degree of 500in3/30g, and then the semi-fiber balls are put into a cotton mixer to carry out secondary fiber opening and mixing processes of the fiber balls.
Second step, air-laying
Putting the opened and mixed polyester fibers into an air-flow lapping machine, adjusting the feeding speed to evenly lap the fiber balls, wherein the gram weight is 110g/m 2, and the vehicle speed is 4m/min.
Third step, coating and fixing
The upper layer of the fiber ball net is coated with polyester mesh cloth of 5g/m 2, the lower layer is coated with polyester non-woven fabric with gram weight of 15g/m 2, then the fiber ball net enters an ultrasonic embossing machine, four-small-point fixed patterns are formed by adopting four-small-point rollers, the distance between fixed points is 10cm, and the super-awning super-light thermal insulation flocculus is manufactured.
Example 7:
The invention provides three polyester fiber thermal insulation flocculus with four fixed small points.
First, opening the cotton blend
Three polyester fibers of 3.3tex multiplied by 32mm 60% and 1.6tex multiplied by 38mm 20% and 1.0tex multiplied by 38mm 20% are selected and put into a balling machine, and after a multi-pass opening balling process, semi-fiber balls with the bulk of 500in3/30g are prepared, and then are put into a cotton mixer, and then fiber ball secondary opening and mixing processes are carried out.
Second step, air-laying
Putting the opened and mixed polyester fibers into an air-flow lapping machine, adjusting the feeding speed to evenly lap the fiber balls, wherein the gram weight is 110g/m 2, and the vehicle speed is 4m/min.
Third step, coating and fixing
The upper layer of the fiber ball net is coated with polyester mesh cloth of 5g/m 2, the lower layer is coated with polyester non-woven fabric with gram weight of 15g/m 2, then the fiber ball net enters an ultrasonic embossing machine, four-small-point fixed patterns are formed by adopting four-small-point rollers, the distance between fixed points is 10cm, and the super-awning super-light thermal insulation flocculus is manufactured.
Example 8:
the invention provides a warm-keeping flocculus with a symmetrical structure and four-small-point fixing.
First, opening the cotton blend
Two kinds of 80% polyester fiber of 3.3tex multiplied by 32mm and 20% polyester fiber of 1.6tex multiplied by 38mm are selected and put into a balling machine, a multi-pass opening balling process is carried out to prepare semi-fiber balls with the bulk degree of 500in3/30g, and then the semi-fiber balls are put into a cotton mixer for secondary fiber opening and mixing processes.
Second step, air-laying
Putting the opened and mixed polyester fibers into an air-flow lapping machine, adjusting the feeding speed to evenly lap the fiber balls, wherein the gram weight is 100g/m 2, and the vehicle speed is 4m/min.
Third step, coating and fixing
The polyester non-woven fabric with the gram weight of 15g/m 2 is coated on the upper side and the lower side of the fiber web, then enters an ultrasonic embossing machine, four-small-point fixed patterns are formed by adopting four-small-point rollers, the distance between the fixed points is 10cm, and the four-small-point fixed symmetrical-structure thermal insulation flocculus is manufactured.
Comparative example 1:
The invention provides a four-small-point fixed down warm-keeping flocculus.
First, opening the cotton blend
After the down feather is subjected to a multi-pass opening and balling process, semi-fiber balls with the bulk of 500in3/30g are prepared, and then the semi-fiber balls are put into a cotton mixer for secondary fiber opening and mixing processes of the fiber balls.
Second step, air-laying
Putting the opened and mixed polyester fibers into an air-flow lapping machine, adjusting the feeding speed to evenly lap the fiber balls, wherein the gram weight is 110g/m 2, and the vehicle speed is 4m/min.
Third step, coating and fixing
The upper layer of the fiber ball net is coated with polyester mesh cloth of 5g/m 2, the lower layer is coated with polyester non-woven fabric with gram weight of 15g/m 2, then the fiber ball net enters an ultrasonic embossing machine, four-small-point fixed patterns are formed by adopting four-small-point rollers, the distance between fixed points is 10cm, and the eiderdown flocculus with the same fluffiness as in the embodiment 1 is prepared.
Comparative example 2:
The invention provides a heat-curing thermal insulating wadding.
First, opening the cotton blend
After the down feather is subjected to a multi-pass opening and balling process, semi-fiber balls with the bulk of 500in3/30g are prepared, and then the semi-fiber balls are put into a cotton mixer for secondary fiber opening and mixing processes of the fiber balls.
Second step, air-laying
Putting the opened and mixed polyester fibers into an air-flow lapping machine, adjusting the feeding speed to evenly lap the fiber balls, wherein the gram weight is 110g/m 2, and the vehicle speed is 4m/min.
Third step, coating and fixing
The upper layer of the fiber ball net is coated with polyester mesh cloth of 5g/m 2, the lower layer is coated with polyester non-woven fabric with gram weight of 15g/m 2, and then the fiber ball net is directly put into an oven for heating treatment, and the temperature of the oven is 150 ℃ to prepare the heat-curing thermal insulation flocculus.
Referring to fig. 4 and 5, fig. 4 shows an ultra-high and ultra-light thermal wadding of example 1 and the fixed patterns on the surfaces of example 2, example 3 and example 4. Fig. 5 shows the leak rate of the ultra-light thermal wadding of example 1 and the fixing points of example 2 (single point), example 3 (double point) and example 4 (X point), and the four-small-point flower-shaped fixed wadding has almost no leak point and good fixing effect.
Referring to fig. 6, fig. 6 is a comparison of some of the performance parameters of an ultra-high ultra-lightweight thermal batt of example 1, example 5, and examples 6 and 7. From the graph, the compression recovery rate, the heat retention rate and the washing offset rate of the heat retention flocculus prepared by four different fiber proportion parameters have small differences, and all the properties are good.
Referring to fig. 7, the performance of the ultra-high ultra-lightweight thermal insulation batt of example 1 of fig. 7 is compared with that of a four-dot fixed symmetrical thermal insulation batt of example 8. It can be found from the figure that the compression recovery rate and the thermal insulation rate of the ultra-awning ultra-light thermal insulation flocculus are slightly higher than those of the thermal insulation flocculus with a symmetrical structure with four fixed small points, but the washing offset rate of the eighth embodiment is lower, and the performance of the thermal insulation flocculus is good, so that the flocculus with the two structures can be selectively used according to application scenes and requirements.
Referring to fig. 8, fig. 8 shows a comparison of the performance of an ultra-high ultra-lightweight thermal batt of example 1 and a down batt of comparative examples 1 and 2. As shown in the figure, the super-soft and super-light thermal wadding has a Crohn value of 3.66 compared with the down wadding with the same bulk, which is superior to comparative examples 1 and 2, and shows that example 1 has good thermal insulation. Moreover, the washing offset rate of example 1 is 3.5, which is far lower than that of comparative examples one and one, which shows that example 1 has good stability and is not easy to offset and cold spot.
In summary, the invention provides an ultra-light warm-keeping flocculus, and the production process belongs to clean production and has no chemical additive. The finished product has the advantages of super-light weight, good warmth retention, high degree of fluffiness, no deformation during cleaning, no cold spots, high cost performance and the like, and is suitable for the fields of clothes, shoes and caps, textile products on beds, outdoor sleeping bags, pillows and the like.
The above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope of the present disclosure, and the present disclosure is intended to be covered by the present disclosure. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The preparation method of the super-roof and super-light thermal insulation wadding sheet is characterized by comprising the following preparation steps:
(1) Opening and mixing cotton: firstly, opening fibers into hemispherical fiber balls with certain bulk, and then paving the fiber balls into uniform meshes through an air-laid technology to obtain an intermediate layer;
(2) Air laying: sandwiching the middle layer obtained in the step (1) by using upper layer light mesh cloth or non-woven fabric and lower layer non-woven fabric to form an air heat insulation layer;
(3) Coating and fixing: and reinforcing by using an ultrasonic process to obtain the ultra-awning ultra-light thermal insulation flocculus.
2. The preparation method of the ultra-light thermal insulation flocculus material of the ultra-awning is characterized in that three layers of flocculus materials are all low-melting-point fibers, the three layers of materials are the same or different fibers, and each layer is made of two or more low-melting-point fiber composite materials.
3. The method for preparing the ultra-awning ultra-light thermal insulation flocculus material according to claim 1, wherein the flocculus thickness is as follows: the upper layer of the floccule is not more than the lower layer of the floccule and is not more than the middle layer of the floccule; preferably, the thicknesses of the upper layer of the floccule, the lower layer of the floccule and the middle layer of the floccule are respectively 0.01mm-0.2mm;0.01mm-0.2mm;5mm-50mm.
4. The method for preparing the ultra-high light thermal insulation wadding material according to claim 1, wherein in the step (1), the fibers are polyester fiber balls with different lengths, the degree of bulking is 300-800in3/30g, the fiber length is 25-45mm, and the fineness is 0.5-3.5tex.
5. The method for preparing an ultra-high light thermal insulation wadding material according to claim 1, wherein in the step (1), the maximum width of the air-laid net is 2.6m;
Preferably, in the step (1), the cotton opening and mixing process comprises a plurality of opening and balling processes and a secondary opening and mixing process, wherein specific equipment parameters are 32-50Hz of an opening roller, 32-45Hz of a bin nail curtain, 25-35Hz of an opening host machine, 25-35Hz of an opening blower, 25-40Hz of an opening host machine and 15-50Hz of an opening roller.
6. The method for preparing the ultra-light thermal insulation flocculus material of the ultra-awning according to claim 1, wherein in the step (2), the upper layer of the flocculus adopts mesh cloth or non-woven fabric, and the gram weight is 5-30g/m 2; the lower layer adopts non-woven fabric, the gram weight is 5-30g/m 2, and the vehicle speed is 2-15m/min.
7. The method for preparing an ultra-light thermal wadding material according to claim 1, wherein in the step (2), the mesh cloth and the non-woven fabric are made of terylene, polypropylene, acrylic, nylon, polylactic acid and other low-melting-point fibers, preferably terylene.
8. The method for preparing an ultra-high light thermal insulation wadding material according to claim 1, wherein in the step (3), the maximum welding width of an ultrasonic embossing machine is 2.6m, and the maximum welding speed is 30m/min; the wave head length is 15cm, the wave head pressure is 0.1-0.7N, the distance between ultrasonic points is 5-15cm, and the vehicle speed is 2-15m/min.
9. The method for preparing the ultra-high light thermal insulation flocculus material according to claim 1, wherein in the step (3), the ultrasonic embossing machine adopts fixed patterns comprising a plurality of patterns such as single point, double point, four small points, X point and the like; preferably, four small-point patterns are adopted for embossing, and the distance between fixed points at the same position between two adjacent patterns is 10cm; more preferably, each individual four-dot pattern has a four-dot pitch of 3mm; further, in the step (3), the production speed of the flocculus is 2-15m/min, and the gram weight is 50-320g/m 2.
10. The use of the ultra-high light thermal insulation wadding material obtained by the preparation method according to any one of claims 1-9 in the fields of clothing, shoes and caps, bedding textile products, outdoor sleeping bags, pillows and the like.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410371705.8A CN118109959A (en) | 2024-03-29 | 2024-03-29 | Super-roof and super-light thermal wadding material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410371705.8A CN118109959A (en) | 2024-03-29 | 2024-03-29 | Super-roof and super-light thermal wadding material and preparation method thereof |
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