CN104775207B - Conductive elastic yarn for gloves and preparation method for conductive elastic yarn - Google Patents
Conductive elastic yarn for gloves and preparation method for conductive elastic yarn Download PDFInfo
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- CN104775207B CN104775207B CN201510183856.1A CN201510183856A CN104775207B CN 104775207 B CN104775207 B CN 104775207B CN 201510183856 A CN201510183856 A CN 201510183856A CN 104775207 B CN104775207 B CN 104775207B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 239000000835 fiber Substances 0.000 claims abstract description 71
- 238000000034 method Methods 0.000 claims description 21
- 238000007493 shaping process Methods 0.000 claims description 19
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000004513 sizing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 4
- 238000009998 heat setting Methods 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 6
- 210000004177 elastic tissue Anatomy 0.000 abstract description 6
- 239000007779 soft material Substances 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002238 carbon nanotube film Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002082 metal nanoparticle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Landscapes
- Gloves (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention provides a novel conductive elastic fiber for gloves and a preparation method for the novel conductive elastic fiber. Preparation methods for bulky yarns and bulked yarns are applied to the preparation of the conductive elastic fibers; tight twist yarns and conductive fibers are combined in an SOZO mode; the tight twist yarns apply a certain stress on untwisted conductive fibers, so that the conductive fibers deform; the deformation is fixed by hot setting, so that the conductive fibers and the tight twist yarns are irregularly interlaced together to form composite yarns; the composite yarns are produced to obtain finished products or the tight twist yarns are directly removed to obtain set conductive fibers. The conductive fiber prepared by the preparation method provided by the invention is distributed in a wavy form; compared with a traditional linear conductive fiber, the wavy conductive fiber has the advantages that better conductivity and elastic resilience are obtained, and the wavy conductive fiber is more suitable for soft materials such as the gloves.
Description
Technical field：
The invention belongs to textile material technical field, and in particular to a kind of preparation side of the electrically conductive elastic yarn for glove
Method.
Background technology：
Conductive fiber is the functional fiber with electronic conduction as mechanism, and conductive fiber is not affected by temperature and humidity,
Can destatic in extremely short time internal diabetes.Conductive fiber on market is also varied, from initial metal class conductive fiber
Conductive polymer fiber is developed into, because the processing technology of conductive fiber is complex compared with general fibre, price highest can
50 times of difference, is generally mixed into the conductive fiber of 0.55-5% in the fibre, and the resistivity of fiber can be down to 107Ω * cm, obtain
Anlistatig fabric.
Application of the conductive fiber in glove is used for preparing touch-screen glove, and the part of touch screen needs to experience squeezing for long frequency
Pressure and stretching, conventional conductive fiber fragility are difficult to greatly reach above target, therefore long-time is reduced using rear function, therefore will
Electrically conductive elastic yarn can significantly improve serviceability ratio in applying to glove.
There are composite spinning method and coating, conventional conduction currently used for the preparation method of the conductive fiber of textile field
The electric conductivity of fiber is superior, wash resistant, rub resistance, but elasticity is less, and fragility is big, and electric conductivity can be caused after deforming
Certain impact.Conductive elastic composite yarn and the thing containing the yarn disclosed in Chinese patent CN 1813087B (publication date)
Product, the composite yarn include that the flexible member that at least one conductive covering filament is surrounded in the form of circle is constituted, and the flexible member has
There is 1.2-8.0 times of elongation range, and the tensile elongation of conductive covering filament is more than flexible member, the stress in flexible member
Load-carrying unit bearing part elongation stress.A kind of elastic conduction disclosed in Chinese patent CN 102121192B (publication date) is combined
Fiber and preparation method thereof, is that the conducting particles of white carbon black, graphite, Graphene or metal nanoparticle is covered in elastic poly- ammonia
The surface of ester fiber, obtains volume conductance for 10-7-102W-1*cm-1, extension at break is 500%-1500%.Chinese patent CN
A kind of preparation method of elastic conductive fiber disclosed in 103390467A (publication date 2013.11.13), is by carbon nano-tube film
With the angle wound of the angle fixation of setting on elastic fiber, the elastic conductive fiber for preparing in extensibility can be
In the case of 100%, keep resistance be basically unchanged.
From above-mentioned prior art, the elastic conductive fiber of preparation is by conductive material and elastic fiber/flexible member
Combine, suffered tensile stress during use is carried by elastic fiber/flexible member, this belongs to one kind and takes stopgap measures and do not control
This maneuver, as the fragility of conductive material itself is larger, is highly susceptible to destruction in use, once conductive material meets with
To damage, the usability of fiber will be had a strong impact on.
The content of the invention：
The technical problem to be solved in the present invention is to provide a kind of preparation method of the electrically conductive elastic yarn for glove, will be swollen
The preparation method integrated application of body silk and fluffy yarn in electrically conductive elastic yarn, by the yarn of heavy twist with conductive fiber in SOZO modes
Combine, after fixing, the yarn of heavy twist is removed, obtain the conductive fiber shaped.Conductive fiber prepared by this method is in wave
Type is distributed, and compared with traditional linear type conductive fiber, electric conductivity and resilience more preferably, are more suitable for the flexible materials such as glove.
To solve above-mentioned technical problem, the technical scheme is that：
A kind of electrically conductive elastic yarn for glove, the electrically conductive elastic yarn include heavy twist yarn and Untwisted yarn, institute
Untwisted yarn is stated for conductive fiber, the heavy twist yarn include S twist with the fingers to heavy twist yarn and Z twist with the fingers to heavy twist yarn, it is described to lead
Electric elastomeric yarn is using SOZO modes and silk is into stock, and the electrically conductive elastic yarn adopts heat setting method molding, described conductive fine
Dimension is mainly for the preparation of glove.
Preferably, the heavy twist yarn is vinal, and the Untwisted yarn is stainless steel fibre.
The present invention also provides a kind of preparation method of the electrically conductive elastic yarn for glove, comprises the following steps：
(1) vinal is added S respectively to heavy twist and Z-direction heavy twist, and makees heat treatment, S is obtained to strong with Z-direction
Twist with the fingers vinal；
(2) S that step (1) is obtained to, the heavy twist vinal of Z-direction and non-twist stainless steel fibre with SOZO's
Mode silk, plus weak twist obtains cop-cop-yarn；
(3) cop-cop-yarn that step (2) is obtained is carried out taking out after thermal finalization process and obtains strand of shaping, strand of shaping
Vinal is removed, the electrically conductive elastic yarn for glove is obtained.
As the preferred of above-mentioned technical proposal, in the step (1), the twist of heavy twist is 2000-2800T/m, polyethylene
The fiber number of alcohol fiber is 25-50D.
As the preferred of above-mentioned technical proposal, in the step (2), the twist of weak twist is 300-500T/m.
As the preferred of above-mentioned technical proposal, in the step (3), the temperature of thermal finalization is 45-80 DEG C, and the time is 30-
120min。
As the preferred of above-mentioned technical proposal, in the step (3), the method for removing vinal is：Will sizing
Strand is with bath raio as 1:10 are placed in 100 DEG C of water and soak 45-60min, take out, and rinse 1-2 time.
As the preferred of above-mentioned technical proposal, in the step (3), remove vinal method and can be used for sizing
Vinal is removed in strand, it is also possible in the product for strand preparation of shaping, remove vinal.
As the preferred of above-mentioned technical proposal, in the step (3), for the instantaneous recovery of the electrically conductive elastic yarn of glove
Property is 98-100%.
Used as the preferred of above-mentioned technical proposal, in the step (3), the extensibility for the electrically conductive elastic yarn of glove is
120-150%.
Compared with prior art, the invention has the advantages that：
(1) preparation method of bulked silk and fluffy yarn is combined and applies to electrically conductive elastic yarn by this method, first using strong
The yarn of sth. made by twisting and non-twist conductive fiber in the way of SOZO and silk in the heavy twist yarn of line, S directions and Z-direction plus non-twist
Fiber, heavy twist yarn can apply certain stress to non-twist conductive fiber, different according to the stress that the intensity of the twist applies,
The curve of conductive fiber is also different.
(2) yarn because the stress that the twist applies it is small and slow, be not result in the damage of conductive fiber, by coordinate heat
Shaping technology, the change of conductive fiber is fixed up, and obtains the conductive fiber of permanent set.
(3) conductive fiber Jing after heat treatment with heavy twist yarn is irregular entwine together with form composite yarn, can be with
Yarn is dissolved in after making product, it is also possible to directly dissolve yarn and make product.
(4) this method preparation method is simple, process is simple are particularly suitable for industrialized production, the electrically conductive elastic yarn of preparation
Line on the basis of conductivity is ensured improves the elasticity of conductive fiber, is particularly suitable for preparing glove product, it is ensured that handss
Set and the stickiness of handss, can also provide the premium properties such as conductive antistatic.
Specific embodiment：
Describe the present invention, the illustrative examples of the here present invention and explanation below in conjunction with specific embodiment in detail
It is for explaining the present invention but not as a limitation of the invention.
Embodiment 1：
(1) by fiber number for 25D vinal add respectively S to Z-direction heavy twist 2000T/m, and make heat treatment, obtain
To S to the heavy twist vinal with Z-direction；
(2) by S to, the heavy twist vinal of Z-direction and non-twist stainless steel fibre in the way of SOZO and silk, plus
The weak twist of 300T/m obtains cop-cop-yarn；
(3) by cop-cop-yarn, at a temperature of 45 DEG C, thermal finalization processes 30min, and taking-up obtains strand of shaping, strand of shaping
With bath raio as 1:10 are placed in 100 DEG C of water and soak 45min, take out, and rinse 1 time, obtain the electrically conductive elastic yarn for glove.
Embodiment 2：
(1) by fiber number for 50D vinal add respectively S to Z-direction heavy twist 2800T/m, and make heat treatment, obtain
To S to the heavy twist vinal with Z-direction；
(2) by S to, the heavy twist vinal of Z-direction and non-twist stainless steel fibre in the way of SOZO and silk, plus
The weak twist of 500T/m obtains cop-cop-yarn；
(3) by cop-cop-yarn, at a temperature of 80 DEG C, thermal finalization processes 120min, and taking-up obtains strand of shaping, strand of shaping
Or product prepared by sizing strand is with bath raio as 1:10 are placed in 100 DEG C of water and soak 60min, take out, and rinse 2 times, obtain
For the electrically conductive elastic yarn of glove.
Embodiment 3：
(1) by fiber number for 30D vinal add respectively S to Z-direction heavy twist 2500T/m, and make heat treatment, obtain
To S to the heavy twist vinal with Z-direction；
(2) by S to, the heavy twist vinal of Z-direction and non-twist stainless steel fibre in the way of SOZO and silk, plus
The weak twist of 400T/m obtains cop-cop-yarn；
(3) by cop-cop-yarn, at a temperature of 60 DEG C, thermal finalization processes 90min, and taking-up obtains strand of shaping, strand of shaping
Or product prepared by sizing strand is with bath raio as 1:10 are placed in 100 DEG C of water and soak 50min, take out, and rinse 2 times, obtain
For the electrically conductive elastic yarn of glove.Embodiment 4：
(1) by fiber number for 45D vinal add respectively S to Z-direction heavy twist 2600T/m, and make heat treatment, obtain
To S to the heavy twist vinal with Z-direction；
(2) by S to, the heavy twist vinal of Z-direction and non-twist stainless steel fibre in the way of SOZO and silk, plus
The weak twist of 350T/m obtains cop-cop-yarn；
(3) by cop-cop-yarn, at a temperature of 70 DEG C, thermal finalization processes 50min, and taking-up obtains strand of shaping, strand of shaping
Or product prepared by sizing strand is with bath raio as 1:10 are placed in 100 DEG C of water and soak 55min, take out, and rinse 2 times, obtain
For the electrically conductive elastic yarn of glove.Embodiment 5：
(1) by fiber number for 35D vinal add respectively S to Z-direction heavy twist 2700T/m, and make heat treatment, obtain
To S to the heavy twist vinal with Z-direction；
(2) by S to, the heavy twist vinal of Z-direction and non-twist stainless steel fibre in the way of SOZO and silk, plus
The weak twist of 300T/m obtains cop-cop-yarn；
(3) by cop-cop-yarn, at a temperature of 65 DEG C, thermal finalization processes 70min, and taking-up obtains strand of shaping, strand of shaping
Or product prepared by sizing strand is with bath raio as 1:10 are placed in 100 DEG C of water and soak 60min, take out, and rinse 1 time, obtain
For the electrically conductive elastic yarn of glove.Embodiment 6：
(1) by fiber number for 50D vinal add respectively S to Z-direction heavy twist 2600T/m, and make heat treatment, obtain
To S to the heavy twist vinal with Z-direction；
(2) by S to, the heavy twist vinal of Z-direction and non-twist stainless steel fibre in the way of SOZO and silk, plus
The weak twist of 300T/m obtains cop-cop-yarn；
(3) by cop-cop-yarn, at a temperature of 45 DEG C, thermal finalization processes 120min, and taking-up obtains strand of shaping, strand of shaping
Or product prepared by sizing strand is with bath raio as 1:10 are placed in 100 DEG C of water and soak 60min, take out, and rinse 2 times, obtain
For the electrically conductive elastic yarn of glove.
Embodiment 7：
(1) by fiber number for 45D vinal add respectively S to Z-direction heavy twist 2700T/m, and make heat treatment, obtain
To S to the heavy twist vinal with Z-direction；
(2) by S to, the heavy twist vinal of Z-direction and non-twist stainless steel fibre in the way of SOZO and silk, plus
The weak twist of 500T/m obtains cop-cop-yarn；
(3) by cop-cop-yarn, at a temperature of 50 DEG C, thermal finalization processes 100min, and taking-up obtains strand of shaping, strand of shaping
Or product prepared by sizing strand is with bath raio as 1:10 are placed in 100 DEG C of water and soak 50min, take out, and rinse 2 times, obtain
For the electrically conductive elastic yarn of glove.
After testing, the curve maximum gauge of the electrically conductive elastic yarn for glove prepared by embodiment 1-6, instantaneous recovery
It is as follows with the result of draftability：
As seen from the above table, the curve diameter of the electrically conductive elastic yarn for glove prepared by the present invention receives vinal
The impact of stress and heat-setting time that fiber is applied and it is different, the instantaneous recovery of the electrically conductive elastic yarn of preparation is good, draw
Stretch rate high, change the straight form of conventional conductive fiber, under the performance for ensureing excellent conductive rate, improve conductive fiber
Elasticity.
Claims (9)
1. a kind of electrically conductive elastic yarn for glove, it is characterised in that the electrically conductive elastic yarn includes heavy twist yarn and nothing
Twisted yarn, the Untwisted yarn be conductive fiber, the heavy twist yarn include S twist with the fingers to heavy twist yarn and Z twist with the fingers to strong twisted yarn
Line, the electrically conductive elastic yarn is using SOZO modes and silk is into stock, and the electrically conductive elastic yarn adopts heat setting method molding, institute
Conductive fiber is stated mainly for the preparation of glove；
Wherein, the heavy twist yarn is vinal, and the Untwisted yarn is stainless steel fibre.
2. a kind of preparation method of the electrically conductive elastic yarn for glove, it is characterised in that：Comprise the following steps：
(1) vinal is added S respectively to heavy twist and Z-direction heavy twist, and makees heat treatment, obtained S and gather to the heavy twist with Z-direction
Alcohol fibers；
(2) S that step (1) is obtained to, the heavy twist vinal of Z-direction and non-twist stainless steel fibre in the way of SOZO
And silk, plus weak twist obtains cop-cop-yarn；
(3) cop-cop-yarn that step (2) is obtained is carried out taking out after thermal finalization process and obtains strand of shaping, sizing strand is removed
Vinal, obtains the electrically conductive elastic yarn for glove.
3. the preparation method of a kind of electrically conductive elastic yarn for glove according to claim 2, it is characterised in that：It is described
In step (1), the twist of heavy twist is 2000-2800T/m, and the fiber number of vinal is 25-50D.
4. the preparation method of a kind of electrically conductive elastic yarn for glove according to claim 2, it is characterised in that：It is described
In step (2), the twist of weak twist is 300-500T/m.
5. the preparation method of a kind of electrically conductive elastic yarn for glove according to claim 2, it is characterised in that：It is described
In step (3), the temperature of thermal finalization is 45-80 DEG C, and the time is 30-120min.
6. the preparation method of a kind of electrically conductive elastic yarn for glove according to claim 2, it is characterised in that：It is described
In step (3), the method for removing vinal is：Strand will be shaped with bath raio as 1:10 are placed in immersion in 100 DEG C of water
45-60min, takes out, and rinses 1-2 time.
7. the preparation method of a kind of electrically conductive elastic yarn for glove according to claim 2, it is characterised in that：It is described
In step (3), remove vinal method and can be used for vinal being removed in sizing strand, it is also possible to for fixed
Vinal is removed in product prepared by type strand.
8. the preparation method of a kind of electrically conductive elastic yarn for glove according to claim 2, it is characterised in that：It is described
In step (3), the instantaneous recovery for the electrically conductive elastic yarn of glove is 98-100%.
9. the preparation method of a kind of electrically conductive elastic yarn for glove according to claim 2, it is characterised in that：It is described
In step (3), the extensibility for the electrically conductive elastic yarn of glove is 120-150%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183856.1A CN104775207B (en) | 2015-04-17 | 2015-04-17 | Conductive elastic yarn for gloves and preparation method for conductive elastic yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183856.1A CN104775207B (en) | 2015-04-17 | 2015-04-17 | Conductive elastic yarn for gloves and preparation method for conductive elastic yarn |
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| Publication Number | Publication Date |
|---|---|
| CN104775207A CN104775207A (en) | 2015-07-15 |
| CN104775207B true CN104775207B (en) | 2017-04-12 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2387320A (en) * | 1944-08-05 | 1945-10-23 | Us Rubber Co | Highly stretchable yarn |
| US3029589A (en) * | 1958-12-30 | 1962-04-17 | Owens Corning Fiberglass Corp | Extensible fibrous glass textile strand and method of producing same |
| CN1157867A (en) * | 1996-12-30 | 1997-08-27 | 苏州丝绸工学院 | Manufacture method of bulk stretch silk |
| CN102443927A (en) * | 2011-10-09 | 2012-05-09 | 江苏博欧伦家纺有限公司 | Anti-static silk fabric |
| CN103305994A (en) * | 2013-06-25 | 2013-09-18 | 威尔克工业纺织（嘉兴）有限公司 | Yarn and manufacturing technique |
| CN203960455U (en) * | 2014-07-02 | 2014-11-26 | 闵庆富 | A kind of novel metal yarn |
-
2015
- 2015-04-17 CN CN201510183856.1A patent/CN104775207B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2387320A (en) * | 1944-08-05 | 1945-10-23 | Us Rubber Co | Highly stretchable yarn |
| US3029589A (en) * | 1958-12-30 | 1962-04-17 | Owens Corning Fiberglass Corp | Extensible fibrous glass textile strand and method of producing same |
| CN1157867A (en) * | 1996-12-30 | 1997-08-27 | 苏州丝绸工学院 | Manufacture method of bulk stretch silk |
| CN102443927A (en) * | 2011-10-09 | 2012-05-09 | 江苏博欧伦家纺有限公司 | Anti-static silk fabric |
| CN103305994A (en) * | 2013-06-25 | 2013-09-18 | 威尔克工业纺织（嘉兴）有限公司 | Yarn and manufacturing technique |
| CN203960455U (en) * | 2014-07-02 | 2014-11-26 | 闵庆富 | A kind of novel metal yarn |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104775207A (en) | 2015-07-15 |
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Address after: 511455 1st floor, No.1 (factory building a), Liuxin Road (Liudong section), Nansha District, Guangzhou City, Guangdong Province Patentee after: Eason (Guangzhou) protective products Technology Co.,Ltd. Address before: 511455 1st floor, No.1 (factory building a), Liuxin Road (Liudong section), Nansha District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU ESEN PROTECTIVE EQUIPMENT TECHNOLOGY Co.,Ltd. |
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Address after: 511455 201 (Part 201), building 8, No. 10-3, Liuxin Road (Liudong section), Nansha District, Guangzhou City, Guangdong Province Patentee after: Eason (Guangzhou) protective products Technology Co.,Ltd. Address before: 511455 1st floor, No.1 (factory building a), Liuxin Road (Liudong section), Nansha District, Guangzhou City, Guangdong Province Patentee before: Eason (Guangzhou) protective products Technology Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A kind of conductive elastic yarn for gloves and preparation method thereof Effective date of registration: 20220729 Granted publication date: 20170412 Pledgee: HongMian sub branch of Bank of Guangzhou Co.,Ltd. Pledgor: Eason (Guangzhou) protective products Technology Co.,Ltd. Registration number: Y2022980011584 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231026 Granted publication date: 20170412 Pledgee: HongMian sub branch of Bank of Guangzhou Co.,Ltd. Pledgor: Eason (Guangzhou) protective products Technology Co.,Ltd. Registration number: Y2022980011584 |