CN112458594A - Multi-layer pocket sandwich fabric - Google Patents
Multi-layer pocket sandwich fabric Download PDFInfo
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- CN112458594A CN112458594A CN201910765005.6A CN201910765005A CN112458594A CN 112458594 A CN112458594 A CN 112458594A CN 201910765005 A CN201910765005 A CN 201910765005A CN 112458594 A CN112458594 A CN 112458594A
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- 239000004744 fabric Substances 0.000 title claims abstract description 70
- 239000000463 material Substances 0.000 claims description 17
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- 239000004952 Polyamide Substances 0.000 description 6
- 229920000297 Rayon Polymers 0.000 description 6
- 229920002647 polyamide Polymers 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 239000002964 rayon Substances 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 230000037303 wrinkles Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000004759 spandex Substances 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920002334 Spandex Polymers 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000007730 finishing process Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
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Images
Classifications
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D11/00—Double or multi-ply fabrics not otherwise provided for
- D03D11/02—Fabrics formed with pockets, tubes, loops, folds, tucks or flaps
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Outer Garments And Coats (AREA)
- Woven Fabrics (AREA)
Abstract
The present invention provides a multi-layered pocket sandwich fabric, comprising: the bag comprises at least one first outer layer, at least one second outer layer, at least one middle layer arranged between the first outer layer and the second outer layer, at least one first sandwich yarn arranged between the first outer layer and the middle layer adjacent to the middle layer, and at least one second sandwich yarn arranged between the second outer layer and the middle layer adjacent to the middle layer, wherein each middle layer is connected with the adjacent layer to form a plurality of pocket areas, the joint of the first outer layer and the middle layer is adjacent to the pocket area which is not formed by the first outer layer and the middle layer, and the joint of the second outer layer and the middle layer is adjacent to the pocket area which is not formed by the second outer layer and the middle layer; wherein each of the sandwich yarns is comprised of warp yarns, weft yarns, or both warp and weft yarns. By adjusting the properties of the outer layers and/or the core yarns, the applicability of the fabric can be increased.
Description
Technical Field
The invention relates to a multi-layer pocket sandwich fabric, in particular to a sandwich fabric with wide application.
Background
Generally, a plurality of filling areas are separated between two layers of fabrics of the warm-keeping clothes by a sewing mode and are used for filling down or artificial resin cotton, the two layers of fabrics are supported by fluffy down and cotton cloth to form a three-dimensional space, and the clothes can play a warm-keeping effect through air in the three-dimensional space.
The TW I583838B patent discloses a pocket fabric, which includes a plurality of pocket regions interwoven by a plurality of warp yarns and a plurality of weft yarns, wherein the pocket regions can be filled with down, thereby saving extra sewing time. However, the pocket fabric with two pocket walls has the disadvantage that the seams cannot be filled with down to generate cold spots (cold spots) no matter the pocket fabric is sewn additionally or the pocket fabric is integrally woven as in the above patent, and the heat of the human body is dissipated from the seams, so that the down garment cannot really keep warm.
Patent publication US 2017/0172240 a1 discloses a three-layer pocket fabric, which comprises a first outer layer, a middle layer and a second outer layer, wherein the layers are joined with each other, so that a plurality of pockets arranged in a staggered manner are formed in the multi-layer pocket fabric, thereby solving the problem of poor heat retention property caused by the fact that down feather cannot be filled in the seams in the past.
However, the existing down-filled down jackets have the disadvantages that the down penetrates out of the surface of the fabric (leaks) after being used for a period of time, so that the down jackets are uncomfortable to wear by users, and even the warm-keeping effect is gradually reduced.
Disclosure of Invention
The invention aims to provide a sandwich fabric with wide application.
The present invention provides a fabric comprising:
at least one first outer layer;
at least one second outer layer;
at least one middle layer, which is arranged between the first outer layer and the second outer layer, wherein each middle layer is connected with the adjacent layer to form a plurality of pocket areas, the joint of the first outer layer and the middle layer is adjacent to the pocket area which is not formed by the first outer layer and the middle layer, and the joint of the second outer layer and the middle layer is adjacent to the pocket area which is not formed by the second outer layer and the middle layer;
at least one first sandwich yarn disposed between the first outer layer and the intermediate layer adjacent thereto, wherein the first sandwich yarn is composed of warp yarns, weft yarns, or both warp and weft yarns; and
at least one second sandwich yarn disposed between the second outer layer and the intermediate layer adjacent thereto, wherein the second sandwich yarn is comprised of warp yarns, weft yarns, or both warp and weft yarns.
Wherein the dyeing shrinkage of the first outer layer and the second outer layer is larger than that of the sandwich yarns.
Wherein the dyeing shrinkage of the first outer layer and the second outer layer is smaller than that of the sandwich yarns.
Wherein at least one of the first outer layer and the second outer layer is transparent or translucent.
The sandwich fabric can increase the applicability of the fabric by adjusting the properties of the outer layer and/or the sandwich yarn. For example, when the shrinkage of the two outer layers is greater than the shrinkage of at least one or two sandwich yarns (i.e., the shrinkage of the two outer layers is greater than that of the at least one or two sandwich yarns, the at least one or two sandwich yarns will produce a pocket region where the folds are supported after the dyeing and finishing process of the fabric, thereby achieving the same effect as filling down in the pocket region, but the present invention can omit the down filling step, whereas, when the shrinkage of the two outer layers is less than that of the at least one or two sandwich yarns (i.e., the shrinkage of the two outer layers is less than that of the at least one or two sandwich yarns), the shrinkage of the sandwich yarns after the dyeing and finishing process of the sandwich fabric is greater than that of the outer layers, so that the two outer layers will both bulge and crease, but because of the arrangement of the sandwich yarns (the shrinkage is greater than that of the outer layers), the wrinkle range of the two outer layers is limited, and air is easily retained in the pocket region by the generation of the wrinkles of the outer layers (the larger the shrinkage of the outer, the thermal insulation effect is achieved, the sandwich fabric presents a wrinkled appearance which is different from the smooth and plump appearance of the existing down garment, and different choices are provided for users. In addition, the two outer layers can also be made of transparent or semitransparent materials, the color or the material and the like of at least one or two sandwich yarns are adjusted, and a viewer presents the pattern of the inner sandwich yarn through the transparent/semitransparent outer layers, so that the sandwich fabric presents a perspective effect, and the applicability of the fabric is improved.
Drawings
Fig. 1 is a schematic perspective cross-sectional view of an embodiment of the multi-layer pocket sandwich fabric of the present invention.
Fig. 2 is a schematic cross-sectional view of an embodiment of the multi-layer pocket sandwich fabric of the present invention.
Figure 3 is a schematic cross-sectional view of another embodiment of the multi-layer pocket sandwich fabric of the present invention.
Fig. 4 is a schematic cross-sectional view of yet another embodiment of the multi-layer pocket sandwich fabric of the present invention.
Description of the symbols
10. 10', 10a first outer layer
20. 20', 20a second outer layer
30. 30' intermediate layer
40 pocket area
50. 50', 50a first sandwich yarn
60. 60', 60a second sandwich yarn.
Detailed Description
The present invention may be understood more readily by reference to this detailed description and the examples included herein. Numerous specific details are set forth in order to provide a thorough understanding of the examples described herein. However, it will be understood by those of ordinary skill in the art that the examples described herein may be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the relevant features described. Furthermore, the description is not to be taken as limiting the scope of the examples.
As used in this specification (and particularly in the claims that follow), the terms "a", "an", "the" and the like should be understood to include both the singular and the plural, unless otherwise indicated. Additionally, the dimensions of various elements and regions in the figures may be exaggerated and not drawn on scale for clarity.
It should be understood that any numerical range recited in this specification is intended to include all sub-ranges subsumed therein. For example, a range of "1 to 10" includes all subranges between (e.g., from 2 to 8, 3 to 6, or 4 to 9, etc.) the recited minimum value of 1 and the recited maximum value of 10 and includes both values, i.e., ranges including a minimum value equal to or greater than 1 and a maximum value equal to or less than 10. Because the disclosed numerical ranges are continuous, they include every value between the minimum and maximum values. Unless otherwise indicated, all numerical ranges specified in this specification are approximate values.
Moreover, it is contemplated that all numerical values are modified by the term "about" in this context, which means that the amount of measurement variation that matches the measurement and operation with the purpose of the measurement and the accuracy of the measurement equipment used, over the amount of interest, as contemplated by those skilled in the art.
As used herein, the term "dyeing shrinkage" refers to the degree of shrinkage of a fabric during a dyeing process. The dye shrinkage used in the present application is expressed in percentage, for example, when the material is 100 cm before the dyeing process is performed, and when the material shrinks to 10 cm after the dyeing process is completed, the dye shrinkage is 90%; if the material shrinks to 90 cm after the dyeing process is completed, the dye shrinkage is 10%.
Referring to fig. 1 and 2, the fabric of the present invention comprises:
at least one first outer layer (10);
at least one second outer layer (20);
at least one intermediate layer (30) disposed between the first outer layer (10) and the second outer layer (20), each intermediate layer (30) being joined to its adjacent layers (including its adjacent first outer layer (10), second outer layer (20) and/or another intermediate layer (30)) to form a plurality of pocket regions (40), wherein the junction of the first outer layer (10) and intermediate layer (30) is adjacent to a pocket region (40) not formed by the first outer layer and intermediate layer (30), and the junction of the second outer layer (20) and intermediate layer (30) is adjacent to a pocket region (40) not formed by the second outer layer and intermediate layer (30);
at least one first sandwich yarn (50) disposed between the first outer layer (10) and the intermediate layer (30) adjacent thereto, wherein the first sandwich yarn (50) is comprised of warp yarns, weft yarns, or both warp and weft yarns; and
at least one second sandwich yarn (60) disposed between adjacent second outer layers (20) and intermediate layers (30), wherein the second sandwich yarn (60) is comprised of warp yarns, weft yarns, or both warp and weft yarns.
In the present invention, when the intermediate layer (30) is two or more layers, the fabric of the present invention may further comprise at least one third sandwich yarn disposed between the intermediate layers (30).
In one embodiment of the present invention, each first outer layer (10), each second outer layer (20), each intermediate layer (30), each first sandwich yarn (50), each second sandwich yarn (60), and each third sandwich yarn may have a respective dye reduction value. Wherein the dye shrinkage of the first and/or second outer layers (10, 20) and/or intermediate layer (30) is greater than the dye shrinkage of the first and/or second sandwich yarns (50, 60) and/or third sandwich yarns (i.e. the outer layer shrinkage is greater than the sandwich yarns), such that after the formation of the pocket region (40) of the sandwich fabric, dyeing and finishing or other thermal processing is carried out, such that the first and/or second sandwich yarns (50, 60) and/or third sandwich yarns bend to support the pocket region (40) in which they are located, i.e. the first sandwich yarn (50) is at least partially in contact with the adjacent first outer layer (10) and the adjacent intermediate layer (30), the second sandwich yarn (60) is at least partially in contact with the second outer layer (20) and the adjacent intermediate layer (30), and the third sandwich yarn is at least partially in contact with the intermediate layers (30), thereby achieving the same effect as filling down in the pocket region (40), but the present invention can omit the down filling step.
In one embodiment of the present invention, one layer of the first sandwich yarn (50) and one layer of the second sandwich yarn (60) are exemplified, but the number of the first and second sandwich yarns (50) (60) and the third sandwich yarn can be adjusted, and the larger the number, the better the warming effect.
In an embodiment of the present invention, the denier of the core yarns may be equal to the denier of the outer layers, or the denier of the core yarns is at least about 2 times, preferably at least about 4 times, more preferably at least about 6 times, and even more preferably at least about 7 times the denier of the outer layers, and the higher the denier of the core yarns is, the better the warming effect is.
In one embodiment of the present invention, the core yarns may be used in place of down or rayon that is already filled in the pocket area, preferably using bulky yarn.
Referring to fig. 3, in another embodiment of the present invention, the fabric of the present invention comprises:
at least one first outer layer (10');
at least one second outer layer (20');
at least one intermediate layer (30') disposed between the first outer layer (10') and the second outer layer (20'), each intermediate layer (30') being joined to its adjacent layers (including its adjacent first outer layer (10'), second outer layer (20') and/or another intermediate layer (30')) to form a plurality of pocket regions (40), wherein the junction of the first outer layer (10') and the intermediate layer (30') is adjacent to a pocket region (40) not formed by the first outer layer and the intermediate layer (30'), and the junction of the second outer layer (20') and the intermediate layer (30') is adjacent to a pocket region (40) not formed by the second outer layer and the intermediate layer (30 ');
at least one first sandwich yarn (50') disposed between the first outer layer (10') and the intermediate layer (30') adjacent thereto, wherein the first sandwich yarn (50') is comprised of warp yarns, weft yarns, or both warp and weft yarns; and
at least one second sandwich yarn (60') disposed between the second outer layer (20') and the intermediate layer (30') adjacent thereto, wherein the second sandwich yarn (60') is comprised of warp yarns, weft yarns, or both warp and weft yarns.
In the present invention, when the intermediate layer (30') is two or more layers, the fabric of the present invention may further comprise at least one third sandwich yarn disposed between the intermediate layers (30').
In one embodiment of the present invention, each first outer layer (10'), each second outer layer (20'), each intermediate layer (30'), each first sandwich yarn (50'), each second sandwich yarn (60'), and each third sandwich yarn may have a respective dye reduction value. Wherein the shrink of the first outer layer (10') and/or the second outer layer (20') and/or the middle layer (30') is less than the shrink of the first and/or the second sandwich yarn (50', 60') and/or the third sandwich yarn (i.e. the shrink of the outer layer is less than the shrink of the sandwich yarn), after the sandwich fabric is dyed or processed by other heat treatment, the first outer layer (10') and/or the second outer layer (20') and/or the middle layer (30') will generate convex wrinkles, but the wrinkle range of the first outer layer (10') and/or the second outer layer (20') and/or the middle layer (30') is limited due to the arrangement of the first, the second and/or the third sandwich yarn (50', 60'), and air is easy to be retained in the pocket regions (40) by the generation of the convex wrinkles, thereby playing a warm-keeping effect, moreover, the sandwich fabric presents a wrinkled appearance which is different from the smooth and plump appearance of the existing down jackets, and provides different choices for users.
In one embodiment of the present invention, a first outer layer (10') and a second outer layer (20') are illustrated, but the number of the first and second outer layers (10') (20') can be adjusted, and the larger the number, the better the warming effect.
Referring to fig. 4, in yet another embodiment of the present invention, the fabric of the present invention comprises:
at least one transparent or translucent first outer layer (10 a);
at least one transparent or translucent second outer layer (20 a);
at least one intermediate layer (30) disposed between the first outer layer (10a) and the second outer layer (20a), each intermediate layer (30) being joined to its adjacent layers (including the first outer layer (10a), the second outer layer (20a) and/or another intermediate layer (30)) to form a plurality of pocket regions (40), wherein the junction of the first outer layer (10a) and the intermediate layer (30) is adjacent to a pocket region (40) not formed by the first outer layer and the intermediate layer (30), and the junction of the second outer layer (20a) and the intermediate layer (30) is adjacent to a pocket region (40) not formed by the second outer layer and the intermediate layer (30);
at least one first sandwich yarn (50a) disposed between the first outer layer (10a) and the intermediate layer (30) adjacent thereto, wherein the first sandwich yarn (50a) is comprised of warp yarns, weft yarns, or both warp and weft yarns; and
at least one second sandwich yarn (60a) disposed between the second outer layer (20a) and the intermediate layer (30) adjacent thereto, wherein the second sandwich yarn (60a) is comprised of warp yarns, weft yarns, or both warp and weft yarns.
In one embodiment of the present invention, the outer layers are made of transparent or translucent materials, such as bright (bright) or semi-bright (semi dull) polyester and polyamide.
In the present invention, when the intermediate layer is two or more layers, the fabric of the present invention may further comprise at least one third sandwich yarn disposed between the intermediate layers.
In one embodiment of the invention, the material (especially dye shrink) of the first and/or second sandwich yarn (50a, 60a) and/or third sandwich yarn may be the same as or different from the transparent first and second outer layers (10a, 20 a). The sandwich yarn can be made of polyester and polyamide dyed yarn, cationic dyeable polyester PET, polyamide regenerated fiber (including but not limited to rayon) or natural fiber (including but not limited to cotton, wool, silk) and the like.
In one embodiment of the present invention, the first and/or second sandwich yarns (50a, 60a) may be of various colors or materials different from the outer layers, such that the colors and patterns appear through the transparent outer layers, creating a special visual effect.
In one embodiment of the present invention, a sequin, a (colored) ball/plastic ball or other decorative article may be disposed between the first outer layer (10a) and the first sandwich yarn (50a) and/or between the second outer layer (20a) and the second sandwich yarn (60a), thereby making the sandwich fabric exhibit more abundant visual effects.
Without being limited to the above embodiments, in the sandwich fabric of the present invention, the first outer layer is formed by interweaving the first warp yarns and the first weft yarns; the second outer layer is formed by interweaving second warp yarns and second weft yarns; each intermediate layer is formed by interweaving third warp yarns and third weft yarns. Wherein the warp and weft yarn densities may each independently range from about 100 to about 1400 yarns per inch, preferably from about 200 to about 1200 yarns per inch, and more preferably from about 300 to about 1000 yarns per inch.
In the present invention, the dyeing shrinkage of the warp and weft of each of the first outer layer, the second outer layer and the middle layer may be the same or different.
In the present invention, each of the first, second and third sandwich yarns is composed of warp yarns, weft yarns or both warp and weft yarns, which can be ordinary yarns (rayon, regenerated fiber, natural fiber) or added with functional rayon or regenerated fiber or natural fiber, such as: far infrared heating yarn, moisture absorbing (humidity) heating yarn, electrically conductive yarn, thermally conductive yarn, antistatic yarn, or the like. The warp and weft yarn densities may each independently range from about 100 to about 1400 yarns per inch, preferably from about 200 to about 1200 yarns per inch, and more preferably from about 300 to about 1000 yarns per inch.
Without being limited to the above examples, the following aspects are included in the sandwich fabric of the present invention:
in one version, each of the sandwich yarns may be comprised of either warp or weft yarns.
In another aspect, each of the sandwich yarns may be comprised of warp yarns, weft yarns, or both warp and weft yarns that are not interwoven.
In yet another version, each sandwich yarn may be comprised of both non-interwoven warp and weft yarns.
In yet another aspect, each of the sandwich yarns may be comprised of both warp and weft yarns interwoven, in which aspect it is preferred that the dye shrink of the first and second outer layers is different from the dye shrink of the first and second sandwich yarns.
In yet another aspect, each of the sandwich yarns may be comprised of both warp and weft yarns that are interwoven, in which aspect the dye shrinkage of the first and second sandwich yarns may be the same or different.
In yet another aspect, each of the sandwich yarns may be comprised of both warp and weft yarns interwoven, in which aspect the warp and weft yarns of each sandwich yarn differ in dye shrinkage by about 1% to about 85%, preferably by about 5% to about 70%; more preferably, it may be from about 10% to about 60%.
The sandwich fabrics of the present invention may comprise one or more of the above aspects, in any combination as desired.
The difference in the foreshortening when the first and second outer layers differ from the foreshortening of the first and/or second and/or third sandwich yarns may be in the range of about 5% to about 70%, preferably in the range of about 20% to about 60%, more preferably in the range of about 30% to about 50%.
In the present invention, a material with higher dye shrinkage refers to a material with dye shrinkage in the range of about 5% to about 70%, preferably in the range of about 20% to about 60%, more preferably in the range of about 30% to about 50%, and includes Mechanical elastic (Mechanical Stretch) fabrics, such as high Crimp Rigidity (CR) polyester, polyamide cloth, polystyrene-butadiene-styrene copolymer (SBS), polybutylene terephthalate (PBT), polytrimethylene terephthalate (PTT), and the like; and Spandex stretch fabrics, such as lycra
Luoyike for diarrhea
And the like.
In the present invention, the material with low dye shrinkage is a material with dye shrinkage in a range of about 0% to about 20%, preferably in a range of about 0% to about 15%, more preferably in a range of about 0% to about 10%, and includes materials such as artificial fibers (including, but not limited to, hydrophilic fibers or hydrophobic fibers such as polyamide fibers, polyester fibers, or polypropylene fibers), regenerated fibers (including, but not limited to, rayon) or natural fibers (including, but not limited to, cotton, wool, or silk) as raw materials.
In the present invention, the intermediate layer is made of a material such as artificial fiber (including, but not limited to, hydrophilic fiber or hydrophobic fiber such as polyamide fiber, polyester fiber, spandex, or polypropylene fiber), regenerated fiber (including, but not limited to, rayon), or natural fiber (including, but not limited to, cotton, wool, or silk).
In the present invention, the thickness of the first outer layer, the intermediate layer, and the second outer layer each independently can be from about 0.01mm to about 5 mm; preferably, it may be from about 0.05mm to about 1 mm; more preferably from about 0.05mm to about 0.8 mm; particularly preferred may be from about 0.08mm to about 0.5 mm.
In the present invention, the first outer layer, the second outer layer and the middle layer may each independently have a denier number of between about 5 denier to about 1200 denier, preferably between about 15 denier to about 1000 denier, more preferably between about 30 denier to about 1000 denier, and still more preferably between about 75 denier to about 600 denier.
In the present invention, the first outer layer, the second outer layer and the intermediate layer may each independently have a count of between about 5 and about 200, preferably between about 10 and about 180, more preferably between about 16 and about 150, and even more preferably between about 30 and about 120.
In the present invention, the pocket areas are substantially free of any filling material, such as down, cotton, etc. However, in order to further improve the warming effect or the fluffy feeling, the pocket areas can be filled. Preferably, the pocket areas not adjacent to the outer layers are filled with down, cotton, or the like to avoid leakage of down from the down or cotton. For example, when there are plural intermediate layers, the pocket region not adjacent to the outer layers can be filled with down, cotton cloth, etc. through the intermediate layers, thereby avoiding the down, cotton cloth, etc. from being exposed from the surface of the outer layers to cause down leakage.
In the present invention, the total thickness of the sandwich fabric is from about 1mm to about 100mm, preferably from about 1mm to about 50mm, more preferably from about 1mm to about 30mm, and especially preferably from about 1mm to about 20 mm.
In the present invention, the sandwich fabric may be made into clothing, sleeping bags, bedding, etc.
Examples of the invention
Example 1 (when the outer layer dye shrink is greater than the center fill yarn dye shrink)
The sandwich fabric in this example comprises a first outer layer, a second outer layer and a middle layer of 75 denier polyethylene terephthalate (PET), with a first sandwich yarn of 300 denier PET disposed between the first outer layer and the middle layer, and a second sandwich yarn of 300 denier PET disposed between the second outer layer and the middle layer. The total thickness of the sandwich fabric was about 1.85mm, the thickness of each of the first and second outer layers and the intermediate layer was about 0.35mm, and the dye shrinkage thereof was about 35%; the thickness of the first and second sandwich yarns was about 0.4mm each, which was equal to about 3% dye reduction.
Please refer to attachments one to three, which are respectively an appearance photograph, a side cross-sectional photograph, and a top view photograph of the sandwich fabric of example 1. The outer and middle layers are dyed more than the sandwich yarns, so the bending fluffy sandwich yarns can support the pocket area between the outer and middle layers, and the sandwich yarns can replace down or artificial cotton filled in the pocket area, thereby having the same warm-keeping effect.
The thermal insulation (cold) performance of the sandwich fabric was tested via a thermal resistance test, in general, the higher the thermal resistance value, the stronger the warmth retention, and the results of the thermal resistance test for the sandwich fabric of example 1 are shown in table 1:
TABLE 1
The thermal resistance values of the general thermal fabrics are shown in table 2 below.
TABLE 2
| Test object | Thermal impedance (clo) |
| Overcoat | 0.6 |
| Down jacket | 0.55 |
| Cotton felt jacket | 0.55 |
| Thick sweater | 0.35 |
| General sweater | 0.28 |
| General jacket | 0.2 |
| Cotton felt trousers | 0.35 |
| Cotton felt vest | 0.2 |
(data Source: ISO9920-1995Annex B)
The sandwich fabric of example 1 of the present invention has a significantly better thermal impedance (clo) value than general thermal fabrics, and thus has good thermal insulation properties.
Example 2 (when the outer layer is dyed less than the filling yarn)
The sandwich fabric of example 2 was constructed as in example 1 except that a core yarn having a denier of 75 denier was used and the outer layer was dyed less than the core yarn.
Example 3 (when the outer layer is made of transparent material)
The sandwich fabric of example 3 was identical to that of example 1 except that the two outer layers used a 75 denier translucent polyester and the core yarn used a 75 denier polyester black yarn so that the viewer could see the effect of the curling of the inner black core yarn (see appendix three).
The foregoing has outlined rather broadly the features and advantages of the present disclosure in order that the present disclosure may be better understood. It should be appreciated by those skilled in the art that the conception and specific example disclosed may be readily utilized as a basis for modifying or designing other structures or processes for carrying out the same purposes of the present invention. It should also be realized by those skilled in the art that such equivalent constructions and methods are within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A fabric, comprising:
at least one first outer layer;
at least one second outer layer;
at least one middle layer, which is arranged between the first outer layer and the second outer layer, wherein each middle layer is connected with the adjacent layer to form a plurality of pocket areas, the joint of the first outer layer and the middle layer is adjacent to the pocket area which is not formed by the first outer layer and the middle layer, and the joint of the second outer layer and the middle layer is adjacent to the pocket area which is not formed by the second outer layer and the middle layer;
at least one first sandwich yarn disposed between the first outer layer and the intermediate layer adjacent thereto, wherein the first sandwich yarn is composed of warp yarns, weft yarns, or both warp and weft yarns; and
at least one second sandwich yarn disposed between the second outer layer and the intermediate layer adjacent thereto, wherein the second sandwich yarn is comprised of warp yarns, weft yarns, or both warp and weft yarns.
2. The fabric of claim 1 wherein the dye shrink of the first and second outer layers is greater than the dye shrink of the first and second core yarns.
3. The fabric of claim 1 wherein the first and second outer layers have less dye shrink than the first and second core yarns.
4. The fabric of claim 2 or 3, wherein the difference in dye shrinkage is in the range of about 5% to about 70%.
5. A fabric of claim 2 or 3, wherein the higher dye shrinkage material has a dye shrinkage in the range of about 5% to about 70%; the dye shrinkage of the lower dye shrinkage material is in the range of about 0% to about 20%.
6. The fabric of claim 2, wherein the denier of the core yarns is at least about 2 times greater than the denier of the outer layers.
7. The fabric of any one of claims 1 to 3 and 6, wherein at least one of the first outer layer and second outer layer is transparent or translucent.
8. The fabric of any one of claims 1 to 3 and 6, wherein the density of the warp or weft yarns is between about 100 to about 1400 yarns per inch.
9. The fabric of any one of claims 1 to 3 and 6, wherein the first outer layer, second outer layer and middle layer each independently have a denier between about 5 to about 1200 denier.
10. The fabric of any one of claims 1 to 3 and 6, wherein the first outer layer, second outer layer and middle layer each independently have a count of between about 5 to about 200.
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| CN112458594B (en) | 2023-11-21 |
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