CN211036306U - Compression-resistant elastic modulus sectional warp-knitted spacer fabric - Google Patents
Compression-resistant elastic modulus sectional warp-knitted spacer fabric Download PDFInfo
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- CN211036306U CN211036306U CN201921588983.XU CN201921588983U CN211036306U CN 211036306 U CN211036306 U CN 211036306U CN 201921588983 U CN201921588983 U CN 201921588983U CN 211036306 U CN211036306 U CN 211036306U
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Abstract
A compression-resistant elastic modulus strip warp-knitted spacer fabric belongs to the field of warp-knitted spacer fabrics. The method is characterized in that the method comprises the following steps of dividing the material into regions with different compression elastic moduli in the width direction, and realizing the following steps: 1. the raw material of the spacing layer is woven by chemical fiber monofilaments with different bending rigidity; 2. different drawing-in modes are adopted in the weaving process; 3. in the post-finishing process, the regions with large and medium compression elastic modulus are treated by different proportions of stiffening agents, or the regions with large and medium compression elastic modulus are woven by different proportions of low-melting-point yarns, and after heat-finishing and shaping, different compression resistances appear in different regionsModulus of elasticity. The impact fatigue deformation rates of large, medium and small compression elastic modulus are less than 8%, and the compression stress value CV of small compression elastic modulus40Is 5 to 8 kpa; the middle compression elastic modulus zone is 9-12 kpa, and the large compression elastic modulus is larger than 13 kpa. The production difficulty of the prior art is reduced, the production process is simplified, the production efficiency is improved, and the product performance is excellent.
Description
Technical Field
The utility model relates to a warp knitting spacer fabric field especially relates to a resistance to compression elasticity modulus divides strip warp knitting spacer fabric that accords with human engineering.
Background
As a novel pad material, the three-dimensional warp-knitted spacer fabric is widely applied to the fields of mattresses, cleaning pads, infant climbing pads, yoga pads, seat cushions and the like in recent years. However, most of warp-knitted spacer fabrics on the market have the same modulus of elasticity under compression, and the modulus of elasticity under compression of each part of the fabric is the same. When a human body lies on the mattress, the degree of extrusion of different parts of the human body on each part of the mattress is different, for example, the shoulders and the buttocks have larger extrusion on the mattress, and the waist has smaller extrusion on the mattress. Under such conditions, it is desirable that the shoulder and hip regions of the mattress liner material have a relatively low modulus of elasticity under compression, excellent containment properties that minimize the compression of the mattress on the human body, and the lumbar region has a relatively high modulus of elasticity under compression, excellent support properties that allow the spine of the human body to be in a natural state. However, the existing market products have certain limitations, the product structure does not conform to human engineering, and the user experience is poor.
Disclosure of Invention
An object of the utility model is to solve the above-mentioned problem among the prior art, provide a resistance to compression elastic modulus divides strip warp knitting spacer fabric, can not only prepare out the resistance to compression elastic modulus divides strip warp knitting spacer fabric material that the performance is more excellent, can greatly reduce the current production degree of difficulty moreover, improve production efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a compression elastic modulus strip warp-knitted spacer fabric comprises regions with different compression elastic moduli, namely a small compression elastic modulus region, a medium compression elastic modulus region and a large compression elastic modulus region; the surface layers of the small compression elastic modulus region, the medium compression elastic modulus region and the large compression elastic modulus region respectively adopt colored yarns with different colors; the raw materials of the spacing layer in the areas with different compression elastic moduli are woven by chemical fiber monofilaments with different bending rigidities; the high compression elastic modulus area is formed by weaving one or more of polypropylene monofilaments and polyethylene terephthalate (PET) monofilaments with high bending rigidity in a mixed mode; the small compression elastic modulus area is formed by weaving one or more of polyamide monofilament, polytrimethylene terephthalate (PTT) monofilament and polybutylene terephthalate (PBT) monofilament with small bending rigidity in a mixed mode; the medium-pressure elastic modulus area is woven by modified polyester monofilaments with medium bending rigidity or is woven by mixing monofilaments with large bending rigidity and monofilaments with small bending rigidity.
The modified polyester monofilament with medium bending rigidity is formed by mixing and spinning PET and PBT or PTT slices, or the modified polyester monofilament with medium bending rigidity is a skin-core structure monofilament which takes PET as a core layer and PBT or PTT as a skin layer.
The mixing ratio of PET to PBT or PTT of the modified polyester monofilament with medium bending rigidity is 4: 1-1: 4; in the sheath-core structure monofilament, the ratio of the sheath layer to the core layer is 1: 2-1: 5.
When the medium-pressure elastic modulus area is woven by mixing monofilaments with high bending rigidity and monofilaments with low bending rigidity, the mixing ratio of the monofilaments with high bending rigidity to the monofilaments with low bending rigidity is 5: 1-1: 5.
And different drawing-in modes are adopted in the regions with different compression elastic moduli to realize the different compression elastic moduli.
The threading mode of big compressive elasticity modulus region at interval sley bar is 2 empty 1 wears-5 empty 1 and wears, and little compressive elasticity modulus region is 1 and wears 2 empty-1 at the threading mode of interval sley bar and wears 5 empty, and the threading mode of well compressive elasticity modulus region at interval sley bar is 1 and wears 1 empty.
The high compression elastic modulus region and the medium compression elastic modulus region are treated by a stiffening agent in the post-finishing process so that the compression elastic modulus of the high compression elastic modulus region is different from that of the medium compression elastic modulus region; the stiffening agent is one or more of polypropylene resin, polyimide resin, polyester resin and polyamide resin.
The regional interval silk of big compressive elasticity modulus adopts the sheath core structure low melting point silk of the sheath melting point lower, the higher sheath core melting point of sandwich layer melting point to weave, the regional low melting point silk of adopting of moderate compressive elasticity modulus and the mixed weaving of conventional fibril, the regional normal fibril that adopts of little compressive elasticity modulus weaves.
The impact fatigue deformation rate of the large compression elastic modulus area is less than 8 percent, and the compression stress value CV is40Greater than 13 kpa; the impact fatigue deformation rate of the small compression elastic modulus area is less than 8 percent, and the compression stress value CV is40Is 5 to 8 kpa; the impact fatigue deformation rate of the medium-pressure elastic modulus area is less than 8 percent, and the compression stress value CV is40Is 9 to 12 kpa.
A preparation method of a compression elastic modulus sectional warp-knitted spacer fabric material comprises the following steps:
1) designing the width and the number of large, medium and small compression elastic modulus regions of a finished product according to the requirement of human engineering, designing the total warping number of monofilaments and veil, and designing and arranging the number of monofilaments with different bending stiffness and the number of veil with different colors according to the width and the number of the large, medium and small compression elastic modulus regions of the finished product;
2) warping the monofilament and the face yarn into a pan head required by weaving according to the designed warping number and arrangement rule for weaving production;
3) according to design requirements, the monofilament pan head is arranged on a warp beam of a weaving machine according to a certain rule, and is subjected to drawing-in weaving according to the designed process requirements;
4) according to the design requirements and the characteristics of the monofilaments with different bending rigidity and the monofilaments with the sheath-core low melting point, the weaving blank is shaped and finished at a certain temperature and a certain speed.
Compared with the prior art, the utility model discloses technical scheme obtains beneficial effect is:
1. the utility model discloses the regional wall of each big, well, little resistance to compression elasticity modulus uses different bending stiffness's chemical fiber material, utilizes to weave the mixed braiding technology, perhaps utilizes after-treatment technology, realizes the conventional simple and convenient production of branch strip product, reduces the current production degree of difficulty, simplifies production processes, improves production efficiency.
2. The utility model discloses can adopt different drawing-in processes, utilize same kind of raw materials, produce the different products of each regional resistance to compression elasticity modulus, improve off-the-shelf added value.
3. Because the middle compression elastic modulus area is produced by selecting the modified polyester monofilament with medium bending rigidity, the modified polyester monofilament has excellent elasticity, the produced strip product has excellent compression fatigue resistance, the finished mattress product does not have the problem of local collapse, and the mattress meets the requirement of human engineering.
Drawings
FIG. 1 is a schematic structural diagram of regions with different compression elastic modulus of large, medium and small;
FIG. 2 is a schematic cross-sectional view of a modified polyester monofilament having a sheath-core structure;
FIG. 3 is a schematic view of a seven-section warp-knitted spacer fabric of example 1;
FIG. 4 is a schematic view of a five-section warp-knitted spacer fabric of example 2.
Detailed Description
In order to make the technical problem, technical solution and beneficial effects to be solved by the present invention clearer and more obvious, the following description is made in detail with reference to the accompanying drawings and embodiments.
The utility model discloses according to the ergonomic requirement, the different regions of 3 ~ 7 compressive elasticity modulus are designed into to divide strip warp knitting spacer fabric in the width (horizontal) direction of product, including little compressive elasticity modulus region, well compressive elasticity modulus region and big compressive elasticity modulus region, the big, middle, little different regional surface course of compressive elasticity modulus distinguishes with different look yarn respectively.
The difference in the modulus of elasticity under compression of the different regions can be achieved by:
(1) the raw materials of the interlayer in the areas with different compression elastic moduli are woven by chemical fiber monofilaments with different bending rigidities;
(2) different drawing-in modes are adopted in the weaving process of the areas with different compression elastic moduli to realize the difference of the compression elastic moduli;
(3) in the process of finishing the blank fabric with the same compression elastic modulus, the regions with the large compression elastic modulus and the regions with the medium compression elastic modulus are treated by using stiffening agents with different proportions to achieve the compression elastic modulus difference of different regions of a final finished product, or the regions with the large compression elastic modulus and the regions with the medium compression elastic modulus are woven by using low-melting-point yarns with different proportions, and after heat setting, the compression elastic moduli with different sizes are shown in different regions.
The high compression elastic modulus region can be formed by mixing and weaving one or more of polypropylene monofilaments, polyethylene terephthalate monofilaments and the like with high bending rigidity, the small compression elastic modulus region can be formed by mixing and weaving one or more of polyamide monofilaments, polytrimethylene terephthalate monofilaments, polybutylene terephthalate monofilaments and the like with low bending rigidity, and the medium compression elastic modulus region can be formed by mixing and weaving modified polyester monofilaments with medium bending rigidity or monofilaments with high bending rigidity and monofilaments with low bending rigidity in different proportions.
As shown in fig. 1, the structural schematic diagram of the regions with different compression elastic modulus, which are woven by monofilaments with different bending stiffness, is shown, the region with low compression elastic modulus woven by PTT monofilament is a soft region, the region with high compression elastic modulus woven by PET monofilament is a hard region, and the region with medium compression elastic modulus woven by mixing PTT and PET is a medium hard region.
The modified polyester monofilament with medium bending rigidity can be formed by mixing and spinning PET and PBT or PTT slices according to different proportions, or can be formed by taking PET as a core layer and taking PBT or PTT as a skin layer to produce a skin-core structure monofilament, as shown in figure 2.
The utility model discloses a weave on the HDR6 type double needle bar warp knitting machine that has six sley bars, the sley bar arrange from the machine to the back be the face sley bar GB1, GB2 that only weaves at the front needle bed respectively, preceding, back needle bed in proper order the space sley bar GB3, GB4 that the lopping was woven to and only the end sley bar GB5, GB6 that the back needle bed was woven.
The face guide bars GB1 and GB2 penetrate yarns of different colors according to design requirements, the spacing guide bars GB3 and GB4 penetrate monofilaments of different bending rigidity respectively according to the design requirements, and the bottom guide bars GB5 and GB6 penetrate yarns of the same color or different colors according to the design requirements.
The warp-knitting space fabric with the strips has the advantages that the warp-knitting mode of the large compression elastic modulus region re-spacing combs GB3 and GB4 is that the warp-knitting space fabric is worn in a space of 2-1-5, the small compression elastic modulus region is worn in a space of 1-2-1-5, and the medium compression elastic modulus region is worn in a space of 1.
The utility model discloses in the finishing process, the regional polypropylene resin that can adopt different proportions of big resistance to compression elastic modulus, polyimide resin, polyester resin, polyamide resin in the regional middle resistance to compression elastic modulus or several kinds of agents of stiffening carry out stiffening treatment.
The utility model discloses in, the regional veil or the interval silk of big resistance to compression elastic modulus can adopt the cortex melting point lower, and the higher skin core structure low melting point silk of sandwich layer melting point weaves, and well resistance to compression elastic modulus is regional to adopt low melting point silk and conventional fibril to weave according to different proportions, and little resistance to compression elastic modulus is regional to weave with conventional fibril.
The impact fatigue deformation rate of the large compression elastic modulus area is less than 8 percent (tested according to GB/T18941-2003), and the compression stress value CV40Greater than 13kpa (tested according to standard GB/T18942.1), the impact fatigue deformation rates of small compression elastic modulus regions are all less than 8%, and the compression stress value CV is40Is 5 to 8 kpa; the impact fatigue deformation rate of the medium compression elastic modulus area is less than 8 percent, and the compression stress value CV40Is 9 to 12 kpa.
The modified polyester monofilament with medium bending rigidity is subjected to mixed spinning, wherein the mixing ratio of PET to PBT or PTT is 4: 1-1: 4; when PET is used as a core layer and PBT or PTT is used as a skin layer to produce the skin-core structure monofilament, the ratio of the skin layer to the core layer is 1: 2-1: 5.
When the medium-pressure elastic modulus area is woven by mixing monofilaments with high bending rigidity and monofilaments with low bending rigidity, the mixing ratio of the monofilaments with high bending rigidity to the monofilaments with low bending rigidity is 5: 1-1: 5.
The thickness of the stripe warp knitting spacer fabric can be 5-60 mm, and the unit area weight can be 800 grams per square meter to 2000 grams per square meter. The mesh shape of the surface layer adopts one of an equilateral triangle, a rhombus, a rectangle and a regular hexagon, and the arrangement mode of the spacing wires adopts one of a 1-shaped, a V-shaped, an X-shaped and a 1X 1-shaped.
The preparation method of the strip warp-knitted spacer fabric material mainly comprises the following steps:
(1) designing the width and the number of large, medium and small compression elastic modulus regions of a finished product according to the requirement of human engineering, designing the total warping number of monofilaments and veil, and designing and arranging the number of monofilaments with different bending stiffness and the number of veil with different colors according to the width and the number of the large, medium and small compression elastic modulus regions of the finished product;
(2) warping the monofilament and the face yarn into a pan head required by weaving according to the designed warping number and arrangement rule for weaving production;
(3) according to design requirements, the monofilament pan head is arranged on a warp beam of a weaving machine according to a certain rule, and is subjected to drawing-in weaving according to the designed process requirements;
(4) according to the design requirements and the characteristics of the monofilaments with different bending rigidity and the monofilaments with the sheath-core low melting point, the weaving blank is shaped and finished at a certain temperature and a certain speed.
The present invention is specifically explained below based on example 1 and example 2.
Example 1
(1) Seven-division sectional fabric design and warping and yarn arranging
According to the requirement of human engineering, the product is designed into 7 regions with large, medium and small compression elastic modulus along the width direction, and the regions from left to right are respectively as follows: a first zone, a second zone, a third zone, a fourth zone, a fifth zone, a sixth zone and a seventh zone; the corresponding width of each zone is: 28. 34, 21, 34, 28; the compressive modulus of elasticity corresponding to each zone is: medium, small, large, small, medium, that is: medium hard, soft, medium hard zones, as shown in fig. 3.
The number of face yarn warns corresponding to GB1 and GB6 is 180 (per pan), the total number of face yarn warns corresponding to GB2 and GB5 is 360 (per pan), and the number of monofilament warns corresponding to GB3 and GB4 is 179 (per pan). The corresponding face yarn and monofilament yarn arrangement rule of each area is as follows (the yarn arrangement of the 4 th, 5 th and 6 th pan heads is respectively the same as that of the 1 st, 2 nd and 3 rd pan heads):
(2) production of warping pan head
And (3) warping the monofilaments and the face yarns into pan heads required by weaving according to the design of the step (1) for weaving production. The total number of 6 groups of pan heads is six, the warping and yarn-discharging rule of each pan head is shown in step (1), each pan head is numbered after warping is finished, the first group of face yarn pan heads are GB1-1 to GB1-6, the second group of face yarn pan heads are GB2-1 to GB2-6, the third group of monofilament pan heads are GB3-1 to GB3-6, the fourth group of monofilament pan heads are GB4-1 to GB4-6, the fifth group of face yarn pan heads are GB5-1 to GB5-6, and the sixth group of face yarn pan heads are GB6-1 to GB 6-6.
(3) Weaving process design and upper shaft production
And placing the disc heads of each group on a warp beam of a weaving machine according to the sequence of 1-6 respectively, and drawing through and weaving according to the following process requirements. Knitting by air-through method, knitting the product on a karl Mayer E16 machine, adjusting the gauge of a needle bed to be 20mm, knitting density to be 8wpc and producing 2 breadth.
The process organization is as follows:
GB1:2-2/0-0/0-0/2-2/2-2/1-1/1-1/3-3/3-3/1-1/1-1/2-2//
GB2:0-1/1-0//
GB3:0-1/0-1/5-6/5-6//
GB4:1-0/1-0/6-5/6-5//
GB5:0-1/1-0//
GB6:2-2/0-0/0-0/2-2/2-2/1-1/1-1/3-3/3-3/1-1/1-1/2-2//
the raw materials are adopted and the empty penetration is as follows:
(4) shaping and finishing production
The weaving blank product is shaped and finished at a certain temperature and a certain speed so that meshes and various performances of the weaving blank product meet design requirements. The setting speed is 12-18 m/min, and the temperature is 140-180 ℃.
The specific parameters of each region after sizing are shown in table 1:
TABLE 1
Example 2
(1) Fifthly, sectional fabric design and warping and yarn arranging:
according to the requirement of human engineering, the product is designed into 5 regions with large, medium and small compression elastic modulus along the width direction, and the regions from left to right are respectively as follows: a first zone, a second zone, a third zone, a fourth zone and a fifth zone; the corresponding width of each zone is: 62. 21, 34, 21, 62; the compressive modulus of elasticity corresponding to each zone is: medium, large, small, large, medium, i.e.: medium hard area, soft area, hard area, medium hard area, as shown in fig. 4.
The number of face yarn warns corresponding to GB1 and GB6 is 180 (per pan), the total number of face yarn warns corresponding to GB2 and GB5 is 360 (per pan), and the number of monofilament warns corresponding to GB3 and GB4 is 179 (per pan). The corresponding face yarn and monofilament yarn arrangement rule of each area is as follows (the yarn arrangement of the 4 th, 5 th and 6 th pan heads is respectively the same as that of the 1 st, 2 nd and 3 rd pan heads):
(2) production of warping pan head
And (3) warping the monofilaments and the face yarns into pan heads required by weaving according to the design of the step (1) for weaving production. And 6 groups of pan heads are provided, each group of pan heads has six, the yarn threading rule of each pan head is shown in step (1), each pan head is numbered after warping is finished, the first group of face yarn pan heads are GB1-1 to GB1-6, the second group of face yarn pan heads are GB2-1 to GB2-6, the third group of monofilament pan heads are GB3-1 to GB3-6, the fourth group of monofilament pan heads are GB4-1 to GB4-6, the fifth group of face yarn pan heads are GB5-1 to GB5-6, and the sixth group of face yarn pan heads are GB6-1 to GB 6-6.
(3) Weaving process design and upper shaft production
And placing the disc heads of each group on a warp beam of a weaving machine according to the sequence of 1-6 respectively, and drawing through and weaving according to the following process requirements. Knitting by air-through method, knitting the product on a karl Mayer E16 machine, adjusting the gauge of a needle bed to be 20mm, knitting density to be 8wpc and producing 2 breadth.
The process organization is as follows:
GB1:2-2/0-0/0-0/2-2/2-2/1-1/1-1/3-3/3-3/1-1/1-1/2-2//
GB2:0-1/1-0//
GB3:0-1/0-1/5-6/5-6//
GB4:1-0/1-0/6-5/6-5//
GB5:0-1/1-0//
GB6:2-2/0-0/0-0/2-2/2-2/1-1/1-1/3-3/3-3/1-1/1-1/2-2//
the raw materials are adopted and the empty penetration is as follows:
(4) shaping and finishing production
The weaving blank product is shaped and finished at a certain temperature and a certain speed so that meshes and various performances of the weaving blank product meet design requirements. The setting speed is 12-18 m/min, and the temperature is 140-180 ℃.
The specific parameters of each region after sizing are shown in table 2:
TABLE 2
The utility model discloses the regional width of big, well, little resistance to compression elastic modulus can freely design according to the ergonomic requirement, and the yarn of look of different colours is selected according to the design to the veil is regional with the different resistance to compression elastic modulus of difference to use more special chemical fibre material, utilize to weave mixed weaving technology, perhaps utilize aftertreatment technology, realize the conventional simple and convenient production of resistance to compression elastic modulus branch product. Because the middle compression-resistant elastic modulus region is produced by selecting the modified polyester monofilament, the material has excellent elasticity and excellent compression fatigue resistance, and a mattress product produced by the material cannot have the problem of local collapse, so that the production difficulty can be greatly reduced, the production process is simplified, and the production efficiency is improved.
Claims (9)
1. The utility model provides a resistance to compression elasticity modulus slitting warp knitting spacer fabric which characterized in that: the method comprises the following steps of (1) respectively forming a small compression elastic modulus region, a medium compression elastic modulus region and a large compression elastic modulus region in different compression elastic moduli; the surface layers of the small compression elastic modulus region, the medium compression elastic modulus region and the large compression elastic modulus region respectively adopt colored yarns with different colors; the raw materials of the spacing layer in the areas with different compression elastic moduli are woven by chemical fiber monofilaments with different bending rigidities; the high compression elastic modulus area is formed by mixing and weaving one or more of polypropylene monofilaments and polyethylene glycol terephthalate monofilaments with high bending rigidity; the small compression elastic modulus area is formed by weaving one or more of polyamide monofilament, polytrimethylene terephthalate monofilament and polybutylene terephthalate monofilament with small bending rigidity in a mixed mode; the medium-pressure elastic modulus area is woven by modified polyester monofilaments with medium bending rigidity or is woven by mixing monofilaments with large bending rigidity and monofilaments with small bending rigidity.
2. The split warp-knitted spacer fabric with a modulus of elasticity against compression as claimed in claim 1, wherein: the modified polyester monofilament with medium bending rigidity is formed by mixing and spinning PET and PBT or PTT slices, or the modified polyester monofilament with medium bending rigidity is a skin-core structure monofilament which takes PET as a core layer and PBT or PTT as a skin layer.
3. The split warp-knitted spacer fabric with a modulus of elasticity against compression as claimed in claim 2, wherein: in the sheath-core structure monofilament, the ratio of the sheath layer to the core layer is 1: 2-1: 5.
4. The split warp-knitted spacer fabric with a modulus of elasticity against compression as claimed in claim 1, wherein: when the medium-pressure elastic modulus area is woven by mixing monofilaments with high bending rigidity and monofilaments with low bending rigidity, the mixing ratio of the monofilaments with high bending rigidity to the monofilaments with low bending rigidity is 5: 1-1: 5.
5. The split warp-knitted spacer fabric with a modulus of elasticity against compression as claimed in claim 1, wherein: and different drawing-in modes are adopted in the regions with different compression elastic moduli to realize the different compression elastic moduli.
6. The split warp-knitted spacer fabric with a modulus of elasticity against compression as claimed in claim 5, wherein: the threading mode of big compressive elasticity modulus region at interval sley bar is 2 empty 1 wears-5 empty 1 and wears, and little compressive elasticity modulus region is 1 and wears 2 empty-1 at the threading mode of interval sley bar and wears 5 empty, and the threading mode of well compressive elasticity modulus region at interval sley bar is 1 and wears 1 empty.
7. The split warp-knitted spacer fabric with a modulus of elasticity against compression as claimed in claim 1, wherein: the high compression elastic modulus region and the medium compression elastic modulus region are treated by a stiffening agent in the post-finishing process so that the compression elastic modulus of the high compression elastic modulus region is different from that of the medium compression elastic modulus region; the stiffening agent is one of polypropylene resin, polyimide resin, polyester resin and polyamide resin.
8. The split warp-knitted spacer fabric with a modulus of elasticity against compression as claimed in claim 1, wherein: the regional interval silk of big compressive elasticity modulus adopts the sheath core structure low melting point silk of the sheath melting point lower, the higher sheath core melting point of sandwich layer melting point to weave, the regional low melting point silk of adopting of moderate compressive elasticity modulus and the mixed weaving of conventional fibril, the regional normal fibril that adopts of little compressive elasticity modulus weaves.
9. The split warp-knitted spacer fabric with a modulus of elasticity against compression as claimed in claim 1, wherein: the region of large modulus of elasticity under compressionThe impact fatigue deformation rate of the domains is less than 8 percent, and the compression stress value CV is40Greater than 13 kpa; the impact fatigue deformation rate of the small compression elastic modulus area is less than 8 percent, and the compression stress value CV is40Is 5 to 8 kpa; the impact fatigue deformation rate of the medium-pressure elastic modulus area is less than 8 percent, and the compression stress value CV is40Is 9 to 12 kpa.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468496A (en) * | 2019-09-23 | 2019-11-19 | 福建福联精编有限公司 | Pressure-proof elasticity modulus slitting warp-knitted spacer fabric and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468496A (en) * | 2019-09-23 | 2019-11-19 | 福建福联精编有限公司 | Pressure-proof elasticity modulus slitting warp-knitted spacer fabric and preparation method thereof |
| CN110468496B (en) * | 2019-09-23 | 2023-09-01 | 福建福联精编有限公司 | Compression elastic modulus split warp knitting spacer fabric and preparation method thereof |
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