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CN103349590B - Absorbent article - Google Patents

Absorbent article Download PDF

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Publication number
CN103349590B
CN103349590B CN201310290896.7A CN201310290896A CN103349590B CN 103349590 B CN103349590 B CN 103349590B CN 201310290896 A CN201310290896 A CN 201310290896A CN 103349590 B CN103349590 B CN 103349590B
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China
Prior art keywords
hole
straton
absorbed layer
absorbent article
aperture
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CN201310290896.7A
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CN103349590A (en
Inventor
张小莲
张涛
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Gold HongYe Paper Group Co Ltd
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Gold HongYe Paper Group Co Ltd
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Priority to CN201310290896.7A priority Critical patent/CN103349590B/en
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Abstract

A kind of absorbent article, it comprises the liquid permeable top sheet, absorptive core and the opaque liquid egative film that stack gradually from top to bottom, in the absorptive core of described absorbent article, at least one straton absorbed layer is provided with the through hole that multiple longitudinal direction runs through sub-absorbed layer, in at least one straton absorbed layer being provided with through hole, the aperture, upper end near the through hole on the sub-absorbed layer of liquid permeable top sheet is less than aperture, lower end.The through hole that the present invention runs through absorptive core by being provided with multiple longitudinal direction on absorptive core, a liquid-retaining volume is provided to thick liquid, and relatively increase the contact area of thick liquid and absorbent article, thus accelerate the absorption to thick liquid; In addition, in at least one straton absorbed layer being provided with through hole, be less than the shape in aperture, lower end near the aperture, through hole upper end on the sub-absorbed layer of liquid permeable top sheet, thick liquid reverse osmosis can be reduced to absorbent article surface, thus improve the comfort level of absorbent article entirety.

Description

Absorbent article
Technical field
The present invention relates to a kind of absorbent article.
Background technology
Absorbent article common at present, it generally includes: the top flat of liquid permeable, the egative film of impermeable liquid and be arranged on the absorptive core of the absorbing fluid between top flat and egative film.
The absorptive core of the absorbing fluid in existing absorbent article is made up of Time of Fluff Slurry usually, utilizes the capillarity of capillary tube tiny between absorptive core Time of Fluff Slurry, makes it have good Liquid Absorption and diffusivity.In order to further improve absorption and the diffusivity of absorbent article, normal employing is improved by the mode reducing Time of Fluff Slurry capillary tube caliber at present.Such as, absorptive core is carried out to suitable compacting, suppresses guiding gutter etc. on the absorbent body.But while taking above measure, result also in absorbent article to thick liquid as the absorbability of menses etc. declines, this is because Time of Fluff Slurry capillary tube caliber after taking above measure reduces, absorbent article is when the liquid absorbing comparatively thickness, thick liquid may block capillary tube, absorbent article is caused to need the time more grown to absorb thick liquid on the contrary, and also cause absorbent article entirety stiffening after absorptive core compacting, affect product comfort level.
Prior art is for the problems referred to above, the mode normally arranging through hole in absorbent article comes quick absorbing fluid or thick liquid, but in fact, when thick liquid etc. accumulates in through hole, flow more slowly due to thick liquid and easily block capillary tube, the absorbability of absorptive core is caused to decline, the liquid do not sponged in time or viscous solution cognition are expressed to absorbent article in the processes such as user motion, the liquid accumulating in through hole made or thick liquid easily bleed back in a large number to absorbent article surface, cause user uncomfortable.
Summary of the invention
In view of this, provide a kind of and can absorb thick liquid fast and to reduce the absorbent article of thick liquid reverse osmosis real in necessary.
A kind of absorbent article, it comprises the liquid permeable top sheet stacked gradually from top to bottom along absorbent article thickness direction, absorptive core and opaque liquid egative film, described absorptive core comprises the two straton absorbed layers to stacked setting, described two straton absorbed layers comprise and stack gradually upper straton absorbed layer and lower straton absorbed layer from top to bottom along absorptive core thickness direction, every straton absorbed layer all has two surfaces, a upper surface in the face of liquid permeable top sheet, a lower surface in the face of opaque liquid egative film, described upper straton absorbed layer is provided with the upper strata through hole that multiple longitudinal direction runs through straton absorbed layer, described lower straton absorbed layer is provided with lower floor's through hole that multiple longitudinal direction runs through lower straton absorbed layer, described upper strata through hole has the upper end being positioned at straton absorbed layer upper surface and the lower end being positioned at straton absorbed layer lower surface, described lower floor through hole has the upper end being positioned at lower straton absorbed layer upper surface and the lower end being positioned at lower straton absorbed layer lower surface, wherein, the aperture, upper end of described upper straton through hole is less than aperture, lower end, the aperture, upper end of lower floor's through hole is greater than aperture, lower end, and upper strata through hole and described lower floor through hole are oppositely arranged one by one, described through hole is straton absorbed layer and the intensive setting of lower straton absorbed layer central region on this, is arranging away from central region is loose, described through hole straton absorbed layer and the intensive setting of lower straton absorbed layer central region on this are " work " shape, the guide layer of ADL material is provided with between liquid permeable top sheet and absorptive core.
Absorbent article of the present invention, by arranging at least one straton absorbed layer in the absorptive core in absorbent article, and the through hole that multiple longitudinal direction runs through sub-absorbed layer is set at least one straton absorbed layer, a liquid-retaining volume is provided to thick liquid, and relatively increase the contact area of thick liquid and absorbent article, make thick liquid can touch absorbing material in sub-absorbed layer more, thus sponged fast by absorbing material; In addition, to be provided with at least one straton absorbed layer of through hole, be set near the through hole on the sub-absorbed layer of liquid permeable top sheet the shape that aperture, upper end is less than aperture, lower end, significantly can reduce thick liquid reverse osmosis to absorbent article surface, thus improve the comfort level of absorbent article entirety.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of the absorbent article of the present invention first preferred embodiment.
Fig. 2 is the generalized section of the absorbent article of the present invention first preferred embodiment.
Fig. 3 is the partial enlarged drawing at III place in Fig. 2.
Fig. 4 is the generalized section of the absorbent article of the present invention second preferred embodiment.
Fig. 5 is the generalized section of the absorbent article of the present invention the 3rd preferred embodiment.
Fig. 6 is the generalized section of the absorbent article of the present invention the 4th preferred embodiment.
Main element symbol description
Absorbent article 10,20,30,40
Liquid permeable top sheet 11,21,
Absorptive core 12,22,
Opaque liquid egative film 13,23,
Upper straton absorbed layer 221,
Lower straton absorbed layer 222,
Through hole 14
Upper strata through hole 241,
Lower floor's through hole 242,
Compact area 15
Non-densified regions 16
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Shown in Fig. 1 and Fig. 2, the absorbent article 10 that first preferred embodiment of the present invention provides, it comprises the liquid permeable top sheet 11 stacked gradually from top to bottom along absorbent article 10 thickness direction, absorptive core 12 and opaque liquid egative film 13, described absorptive core 12 has two surfaces, a upper surface in the face of liquid permeable top sheet 11, a lower surface in the face of opaque liquid egative film 13, described absorptive core 12 is provided with the through hole 14 that multiple longitudinal direction runs through absorptive core 12, described through hole 14 has the upper end being positioned at this absorptive core 12 upper surface and the lower end being positioned at this absorptive core 12 lower surface, the aperture, upper end of described through hole 14 is less than aperture, lower end.
Described liquid permeable top sheet 11 selects transparent liquid material of good performance, and preferably punch film material, and described punching film material refers to a kind ofly have material porose on the film of Mono direct percolation effect, as punching PE material, perforated non-woven fabric.
Described absorptive core 12 is for absorbing the liquid permeated from described liquid permeable top sheet 11, and it is folded between liquid permeable top sheet 11 and opaque liquid egative film 13.In the present invention, the material forming described absorptive core 12 does not have special restriction, as long as to can be used in absorbent article 10 and can form the material with absorption function all may be used in the present invention.
Described opaque liquid egative film 13 is for stopping that the liquid in described absorptive core 12 oozes out, as long as the material forming described opaque liquid egative film 13 can stop that the liquid of absorptive core 12 continues the material of infiltration downwards.
In the present embodiment, described absorptive core 12 is provided with the through hole 14 that multiple longitudinal direction runs through absorptive core 12, described through hole 14 has the upper end being positioned at this absorptive core 12 upper surface and the lower end being positioned at this absorptive core 12 lower surface.When absorbent article 10 is at absorption thick liquid, during as menses, thick liquid infiltrates on absorptive core 12 after through liquid permeable top sheet 11, the through hole 14 of absorptive core 12 is run through owing to absorptive core 12 being provided with multiple longitudinal direction, the absorbent article of through hole is not set in prior art, then can not naturally be flowed in described through hole 14 by the thick liquid that absorptive core 12 surface sponges completely.Described absorptive core 12 is stacked settings with opaque liquid egative film 13, be positioned at the lower end in contact opaque liquid egative film 13 of the through hole 14 of absorptive core 12 lower surface, the space of formation one upper end open lower end closed like this, that is, the through hole 14 that the longitudinal direction that described absorptive core 12 is arranged runs through absorptive core 12 provides a liquid-retaining volume to the thick liquid be not completely absorbed, described liquid-retaining volume relatively increases the contact area of thick liquid and absorptive core 12, make the viscous solution physical ability absorbing material touching absorptive core 12 more, so can accelerate the absorption of absorptive core 12 pairs of thick liquids.
In the present embodiment, described through hole 14 is designed to the structure that aperture, upper end is less than aperture, lower end, and the aperture, upper end of described through hole 14 is in the scope of 0.1mm to 2mm, and aperture, lower end is in the scope of 0.2mm to 3mm.The through hole 14 of design like this has following two advantages:
The first, reduce bleeding back of thick liquid.When thick liquid accumulates in the through hole 14 of so design, because the aperture, upper end of described through hole 14 is less than lower end aperture, even if when absorbent article 10 is squeezed, also be not easy to make to accumulate in through hole 14 thick liquid that do not absorb or do not absorb completely and bleed back surface to absorbent article 10 in a large number by the aperture that upper end is less, so reduce bleeding back of thick liquid.
The second, accelerate the absorption of absorbent article 10 pairs of thick liquids further.Because the thick liquid accumulated in through hole 14 not easily bleeds back, also the holdup time of thick liquid in described through hole 14 is relatively increased while minimizing thick liquid bleeds back, make it to be absorbed by absorptive core 12 more fully, accelerate the absorption of absorbent article 10 pairs of thick liquids so further.
Known, the central region of absorbent article 10 be liquid mainly flow to region, in order to allow absorbent article 10 absorbing fluid faster, described through hole 14 is in the intensive setting of absorptive core 12 central region in the present embodiment, arranging away from central region is loose, and described through hole 14 is " work " shape in the intensive setting of described absorptive core 12 central region.
Refer to shown in Fig. 3, in the present embodiment, described through hole 14 is formed by the mode of acupuncture or mold compresses absorptive core 12, preferably, forms described through hole 14 by pricker acupuncture on absorptive core 12.When adopting acupuncture mode, described pricker can extrude the absorbing material on absorptive core 12, so, absorbing material near through hole 14 is fine and close compared to the absorbing material away from through hole 14, that is, absorbing material near through hole 14 can form compact area 15, and the absorbing material away from through hole 14 forms non-densified regions 16, and the fiber capillary caliber of described compact area 15 is little compared to the fiber capillary caliber of non-densified regions 16.When thick liquid enters in through hole 14, thick liquid is energy rapid diffusion in the compact area 15 near through hole 14, is then diffused into non-densified regions 16 at leisure, so, accelerates the absorption of absorbent article 10 pairs of thick liquids further.
Refer to shown in Fig. 4, the absorbent article 20 that second preferred embodiment of the present invention provides, it comprises the liquid permeable top sheet 21 stacked gradually from top to bottom along absorbent article 20 thickness direction, absorptive core 22 and opaque liquid egative film 23, described absorptive core 22 comprises two straton absorbed layers of stacked setting, described two straton absorbed layers comprise the upper straton absorbed layer 221 and lower straton absorbed layer 222 that stack gradually from top to bottom along absorptive core 22 thickness direction, every straton absorbed layer all has two surfaces, a upper surface in the face of liquid permeable top sheet 11, a lower surface in the face of opaque liquid egative film 13, described upper straton absorbed layer 221 is provided with the upper strata through hole 241 that multiple longitudinal direction runs through straton absorbed layer 221, described lower straton absorbed layer 222 is provided with lower floor's through hole 242 that multiple longitudinal direction runs through lower straton absorbed layer 222, described upper strata through hole 241 has the upper end being positioned at straton absorbed layer 221 upper surface and the lower end being positioned at straton absorbed layer 221 lower surface, described lower floor through hole 242 has the upper end being positioned at lower straton absorbed layer 222 upper surface and the lower end being positioned at lower straton absorbed layer 222 lower surface, wherein, the aperture, upper end of described upper strata through hole 241 is less than aperture, lower end, the aperture, upper end of described lower floor through hole 242 is greater than aperture, lower end, and upper strata through hole 241 and lower floor's through hole 242 are oppositely arranged one by one.
In the present embodiment, the aperture, upper end of described upper strata through hole 241 is in the scope of 0.1mm to 2mm, and aperture, lower end is in the scope of 0.2mm to 3mm.Described upper strata through hole 241, in the intensive setting of upper straton absorbed layer 221 central region, is being arranged away from central region is loose, and described upper strata through hole 241 on described the intensive setting of straton absorbed layer 221 central region in " work " shape.
The aperture, upper end of described lower floor through hole 242 is in the scope of 0.2mm to 3mm, and aperture, lower end is in the scope of 0.1mm to 2mm.Described lower floor through hole 242, in the intensive setting of lower straton absorbed layer 222 central region, arranging, and described lower floor through hole 242 is " work " shape in the intensive setting of described lower straton absorbed layer 222 central region away from central region is loose.
In the present embodiment, described upper strata through hole 241 and lower floor's through hole 242 are oppositely arranged one by one, that is, the lower end of described upper strata through hole 241 and the upper end one_to_one corresponding of lower floor's through hole 242 and be interconnected, both common structures forming the similar drum closed up in two ends broad in the middle, when thick liquid enters into this drum organization, thick liquid is more difficult bleeds back phenomenon, improves absorptive core 22 so further and absorbs and hold the ability of thick liquid.
Bleed back in order to the ability further improving the absorption thick liquid of absorptive core 22 also reduces, the quantity of described lower floor through hole 242 is more than or equal to 1:1 with the ratio of the quantity of upper strata through hole 241.
In the present embodiment, upper strata through hole 241 and lower floor's through hole 242 also can being formed by the mode of acupuncture or mold compresses as the first preferred embodiment.
Understandable, the lower straton absorbed layer 222 in two straton absorbed layers of described absorptive core 22 being also provided with the lower floor's through hole 242 longitudinally running through lower straton absorbed layer 222, is to allow viscous solution physical ability fully be sponged by absorbent article 20 quickly.Position relationship between described upper strata through hole 241 and lower floor's through hole 242 does not affect the ability that absorbent article 20 absorbs thick liquid fast, position relationship is between the two not limited to the position relationship be oppositely arranged one by one in the present invention second preferred embodiment, in other embodiments, according to product needed, both can be set to other position relationship, the position relationship be such as crisscross arranged, one by one position relationship that is relative and that be crisscross arranged exist jointly.
When thick liquid arrives lower straton absorbed layer 222 place through upper straton absorbed layer 221, if to accumulate in lower floor's through hole 242 not by the thick liquid that sponges in time when being squeezed, reverse osmosis phenomenon may be there is in thick liquid, owing to being also folded with straton absorbed layer 221 on one deck between lower straton absorbed layer 222 and liquid permeable top sheet 21, lower straton absorbed layer 222 is away from liquid permeable top sheet 21, even if occur reverse osmosis also can not directly reverse osmosis to the surface of liquid permeable top sheet 21, but reverse osmosis is in upper strata through hole 241, as long as upper strata through hole 241 is set to the shape that aperture, upper end is less than aperture, lower end, reverse osmosis to the thick liquid in upper strata through hole 241 when being squeezed hardly again reverse osmosis to the surface of liquid permeable top sheet 21.
Understandable, the shape of the lower floor's through hole 242 on described lower straton absorbed layer 222 is not limited to the shape of the present invention second preferred embodiment, in other embodiments, can design different rules or irregular shape as required, such as aperture, upper end is greater than the shape etc. in aperture, lower end.
In sum, when the absorptive core of described absorbent article is the structure of two straton absorbed layers, be not limited to the structure in the second preferred embodiment in the present invention, also can be designed to other various different structure.Refer to Fig. 5, the absorbent article 30 of the present invention the 3rd preferred embodiment, its lower floor's through hole is designed to aperture, upper end and is less than aperture, lower end, and upper strata through hole and lower floor's through hole are crisscross arranged.Refer to Fig. 6, the absorbent article 40 of the present invention the 4th preferred embodiment, the aperture, upper end of its lower floor's through hole equals aperture, lower end, and the position relationship of upper strata through hole and lower floor's through hole is for being oppositely arranged one by one and being crisscross arranged two kinds.
Understandable, the absorptive core of absorbent article of the present invention can also be set to the sub-absorbed layer of more than three layers or three layers stacked settings, every straton absorbed layer all has two surfaces, a upper surface in the face of liquid permeable top sheet, a lower surface in the face of opaque liquid egative film, the sub-absorbed layer of described more than three layers or three layers has a through hole absorbed layer being provided with and longitudinally running through this sub-absorbed layer at least, described through hole has the upper end being positioned at this sub-absorbed layer upper surface and the lower end being positioned at this sub-absorbed layer lower surface, wherein at least one straton absorbed layer being provided with through hole, aperture, upper end near the through hole on the sub-absorbed layer of liquid permeable top sheet is less than aperture, lower end.
Understandable, absorbent article of the present invention is arranged on the basis of through hole on absorptive core, and some conventional modes also can be adopted to improve absorption rate further, as arranged the guide layer of ADL material between liquid permeable top sheet and absorptive core; In absorptive core, High hydrophilous resin etc. is set.
Compared with prior art, absorbent article of the present invention, by the absorptive core in absorbent article being provided with the through hole that multiple longitudinal direction runs through absorptive core, a liquid-retaining volume is provided to thick liquid, and relatively increase the contact area of thick liquid and absorbent article, make thick liquid can touch absorbing material in absorptive core more, thus sponged fast by absorbing material; In addition, through hole is set to the structure that aperture, upper end is less than aperture, lower end, the thick liquid accumulating in so design through hole cannot easily penetrate the less bore in upper end and bleeds back to absorbent article surface in a large number, while minimizing allow liquids, also relatively increase the holdup time of liquid at through hole, liquid can further be absorbed by absorptive core fully.
In addition, those skilled in the art can also do other change in spirit of the present invention.Therefore these changes done according to the present invention's spirit, all should be included within the present invention's scope required for protection.

Claims (4)

1. an absorbent article, it comprises the liquid permeable top sheet stacked gradually from top to bottom along absorptive core thickness direction, absorptive core and opaque liquid egative film, described absorptive core comprises two straton absorbed layers of stacked setting, described two straton absorbed layers comprise the upper straton absorbed layer and lower straton absorbed layer that stack gradually from top to bottom along absorptive core thickness direction, every straton absorbed layer all has two surfaces, a upper surface in the face of liquid permeable top sheet, a lower surface in the face of opaque liquid egative film, it is characterized in that: described upper straton absorbed layer is provided with the upper strata through hole that multiple longitudinal direction runs through straton absorbed layer, described lower straton absorbed layer is provided with lower floor's through hole that multiple longitudinal direction runs through lower straton absorbed layer, described upper strata through hole has the upper end being positioned at straton absorbed layer upper surface and the lower end being positioned at straton absorbed layer lower surface, described lower floor through hole has the upper end being positioned at lower straton absorbed layer upper surface and the lower end being positioned at lower straton absorbed layer lower surface, wherein, the aperture, upper end of described upper straton through hole is less than aperture, lower end, the aperture, upper end of described lower floor through hole is greater than aperture, lower end, and described upper strata through hole and described lower floor through hole are oppositely arranged one by one,
Described through hole is straton absorbed layer and the intensive setting of this lower straton absorbed layer central region on this, is arranging away from central region is loose;
Described through hole straton absorbed layer and the intensive setting of this lower straton absorbed layer central region on this are " work " shape;
The guide layer of ADL material is provided with between described liquid permeable top sheet and described absorptive core.
2. absorbent article as claimed in claim 1, is characterized in that: described through hole is formed by the mode of acupuncture or the sub-absorbed layer of mold compresses.
3. absorbent article as claimed in claim 1, is characterized in that: fine and close compared with the absorbing material away from through hole near the absorbing material of through hole on described sub-absorbed layer.
4. absorbent article as claimed in claim 1, it is characterized in that: in the described two straton absorbed layers being provided with through hole, near the aperture, upper end of the through hole of the sub-absorbed layer of liquid permeable top sheet in the scope of 0.1mm to 2mm, and aperture, lower end is in the scope of 0.2mm to 3mm.
CN201310290896.7A 2013-07-11 2013-07-11 Absorbent article Active CN103349590B (en)

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CN103349590B true CN103349590B (en) 2016-01-13

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CN104622644B (en) * 2013-11-14 2019-09-20 金红叶纸业集团有限公司 Absorbent article
JP5539601B1 (en) * 2014-02-25 2014-07-02 ユニ・チャーム株式会社 Urine collection pad and urine collection pad
CN106255485A (en) * 2014-05-29 2016-12-21 金伯利-克拉克环球有限公司 Absorbent article with the fluid acquisition layer with passage
CN105496657A (en) * 2015-12-29 2016-04-20 广东茵茵股份有限公司 Disposable sanitary product
CN105496653A (en) * 2015-12-29 2016-04-20 广东茵茵股份有限公司 Disposable moisture-absorbing product
CN106074004A (en) * 2016-08-26 2016-11-09 重庆百亚卫生用品股份有限公司 Absorbent commodity and processing technology thereof are oozed in counnter attack
CN107981985B (en) * 2017-12-01 2020-05-26 贺帅 Breathable and anti-seepage diaper
CN108403300B (en) * 2018-02-11 2021-08-27 泉州天娇妇幼卫生用品有限公司 Diaper suitable for boys and children
CN108524107A (en) * 2018-04-18 2018-09-14 泉州市汉奇卫生材料有限公司 A kind of channel-type absorber
CN110037858A (en) * 2019-05-21 2019-07-23 江西欧孕母婴用品有限公司 A kind of infant diaper and preparation method thereof
CN110279521B (en) * 2019-06-28 2021-06-04 重庆百亚卫生用品股份有限公司 Pre-positioning sanitary napkin
CN111603316B (en) * 2020-05-25 2022-03-25 福建恒安集团有限公司 Absorption core and forming process thereof
CN113332040A (en) * 2021-06-16 2021-09-03 诺宸股份有限公司 Galactorrhea prevention pad and manufacturing method thereof
CN116831822B (en) * 2023-07-31 2024-02-09 诺宸股份有限公司 Absorbent article and preparation method thereof

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Effective date of registration: 20210119

Address after: 215126 No.1 Jinsheng Road, Shengpu District, Suzhou Industrial Park, Suzhou City, Jiangsu Province

Patentee after: JINWANG (SUZHOU INDUSTRY AREA) SANITATION SUPPLY Co.,Ltd.

Address before: No.1 Jinsheng Road, Suzhou Industrial Park, Suzhou, Jiangsu Province

Patentee before: GOLD HONGYE PAPER Group Co.,Ltd.

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Address before: 215126 No.1 Jinsheng Road, Shengpu District, Suzhou Industrial Park, Suzhou City, Jiangsu Province

Patentee before: JINWANG (SUZHOU INDUSTRY AREA) SANITATION SUPPLY Co.,Ltd.