CN104605995A - Novel composite core - Google Patents

Novel composite core Download PDF

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Publication number
CN104605995A
CN104605995A CN201510046073.9A CN201510046073A CN104605995A CN 104605995 A CN104605995 A CN 104605995A CN 201510046073 A CN201510046073 A CN 201510046073A CN 104605995 A CN104605995 A CN 104605995A
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CN
China
Prior art keywords
layer
core body
core
top layer
composite core
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510046073.9A
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Chinese (zh)
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CN104605995B (en
Inventor
李志彪
钟磊
陈昶
陈冬
许士学
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU HAOYUE INDUSTRIAL CO LTD
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HANGZHOU HAOYUE INDUSTRIAL CO LTD
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Priority to CN201510046073.9A priority Critical patent/CN104605995B/en
Publication of CN104605995A publication Critical patent/CN104605995A/en
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/40—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing ingredients of undetermined constitution or reaction products thereof, e.g. plant or animal extracts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents

Abstract

The invention relates to a structure playing a role in absorption in absorption products, in particular to a novel composite core. The novel composite core comprises a surface layer and a middle layer which are pasted through adhesive. The surface layer further comprises a toilet paper layer and an absorption core body. The toilet paper layer is located outside the absorption core body, and the width of the toilet paper layer is equal to that of the absorption core body. The absorption core body is a mixed body of wood pulp and SAP. The width of the surface layer is 2-2.5 times that of the middle layer. The two sides of the surface layer are folded to completely wrap the middle layer. The core of the structure is high in absorption speed, high in efficiency, economical and not prone to lump or fracture. The core layer is wrapped with toilet paper and is bonded through a wet strength agent, and fluff pulp of the core layer and the toilet paper are good in wet strength and are closely combined. According to the composite core, two absorption layers are formed, the water absorbing capacity is large, urine can be absorbed and stored effectively and quickly, and therefore the composite core is drier and more comfortable during use.

Description

A kind of NEW TYPE OF COMPOSITE core body
Technical field
The present invention relates to a kind of structure playing Absorption in absorbent article, relate to a kind of NEW TYPE OF COMPOSITE core body that can be used for rising in the hygienic article such as diaper, sanitary towel Absorption particularly.
Background technology
Absorptive core is applied very extensive in the absorbent item for nursing, the absorptive core that most absorptive core or absorbed layer are made up of non-woven fabrics and wood pulp or Time of Fluff Slurry, in order to the absorbent properties increasing core body further add hydroscopic high-molecular resin SAP granule, but in use easily there is the situation sticking together, rupture in the product that such core body is worked it out, simultaneously in order to ensure assimilation effect, the product absorbing structure that this core body is worked it out is usually very thick, can bring some inconvenience and sense of discomfort to user.
The situation sticking together, rupture easily is worked in order to solve core body, publication number is that the application for a patent for invention of CN102715986 discloses a kind of high-efficiency water-absorbing compound core body, the compounding substances that tripoli powder body and Borneolum Syntheticum powder body form is wrapped in centre by sewing by the top layer that this absorptive core is made up of Time of Fluff Slurry or non-woven fabrics and bottom, and is sewed line and is divided into multiple network structure.Core body is made to absorb in raising and while diffusion velocity, also be not easy conglomeration, fracture or clot like this.
In order to solve the inconvenience that core body thicker strip is come, publication number is that the application for a patent for invention of CN101797201 discloses a kind of polymer compound core body, this core body is at dust-free paper top layer and dust-free paper bottom therebetween bulky nonwoven layer of cloth, be uniformly distributed water-absorbing resin in bulky nonwoven layer of cloth, the dust-free paper of top layer and bottom passes through adhesive bonds.Current this compound core body is widely used in ultrathin absorbent item owing to can arrange very thin, but this core body infiltration rate and effect weak.
Summary of the invention
The object of this invention is to provide a kind of absorption efficiency and infiltration rate is high, economical, do not rise and stick together, do not rupture and can adjust a kind of NEW TYPE OF COMPOSITE core body of thickness as required.
In order to achieve the above object, technical scheme of the present invention is as follows: a kind of NEW TYPE OF COMPOSITE core body, comprise top layer and intermediate layer, adhesive bonds is passed through between top layer and intermediate layer, described top layer comprises again toilet paper layer and absorptive core, and toilet paper layer is positioned at outside absorptive core and with absorptive core with wide, described absorptive core is the mixture of wood pulp and SAP, the width on described top layer is 2-2.5 times of intermediate layer width, and intermediate layer is wrapped up by two edge contractions on described top layer completely.
Further, described top layer absorptive core is that 1-1.5:1 wood pulp and SAP are mixed by weight ratio.
Further, the thickness on described top layer is 2-5mm.
As wherein preferably a kind of, described middle core body is the one in bulky nonwoven cloth, dust-free paper, absorbent paper, hydrophilic nonwoven fabrics, spun-laced nonwoven fabric.
Preferred as another kind, the grammes per square metre in described intermediate layer is 35-80g/m 2.
Alternatively preferred, described adhesive is wet strong rubber.
Preferably, described wet strong rubber coating weight is more than or equal to 3gsm.
Best, described NEW TYPE OF COMPOSITE core body is the absorptive core of baby diaper, feminine hygiene articles, adult incontinence product liner.
Compared with the absorptive core used in existing absorption product, beneficial effect of the present invention is: the top layer be made up of the mixture of toilet paper and wood pulp and SAP, its infiltration rate is fast, efficiency is high, economical, the intermediate layer be made up of non-woven fabrics, dust-free paper or absorbent paper is wrapped up in the middle of top layer, can effectively improve wood pulp and SAP blended absorbent core easily rise stick together, the shortcoming of easy fracture, the coated sandwich layer of toilet paper uses wet strength agent bonding, the Time of Fluff Slurry of sandwich layer and the wet better strong of toilet paper, in conjunction with closely, also contribute to the intensity increasing top layer, not easily layering, fracture; Simultaneously, NEW TYPE OF COMPOSITE core body of the present invention, thickness can be adjusted as required, the different product that absorbs can be met to the different demands of central absorbent core thickness, without the need to special production equipment, parcel intermediate layer, top layer, form double-deck absorption, water absorption is large, can absorb effectively fast and storage of urine, thus use dryer and comfortableer comfortable.
Accompanying drawing explanation
Fig. 1 is the deployed configuration schematic diagram of NEW TYPE OF COMPOSITE core body of the present invention;
Fig. 2 is the normal condition schematic diagram of NEW TYPE OF COMPOSITE core body of the present invention;
Wherein, 1. top layer; 2. intermediate layer; 3. adhesive; 4. toilet paper layer; 5. absorptive core;
Detailed description of the invention
Below in conjunction with accompanying drawing, content of the present invention is further described, but does not do the restriction to content of the present invention.
As depicted in figs. 1 and 2, a kind of NEW TYPE OF COMPOSITE core body, is comprised top layer 1 and intermediate layer 2, is bondd between top layer 1 and intermediate layer 2 by adhesive 3; Top layer 1 comprises again toilet paper layer 4 and absorptive core 5, toilet paper layer 4 to be positioned at outside absorptive core 4 and with absorptive core 5 with wide, absorptive core 4 is the mixture of wood pulp and SAP, and the width on top layer 1 is 2-2.5 times of intermediate layer 2 width, and intermediate layer 2 is wrapped up by two edge contractions on described top layer 1 completely.
Embodiment 1
This NEW TYPE OF COMPOSITE core body is used for baby paper diaper A, compound core body comprises top layer 1 and intermediate layer 2, top layer 1 comprises again toilet paper layer 4 and absorptive core 5, and toilet paper layer 4 is positioned at absorptive core 5 bottom and absorptive core 5 with wide, and absorptive core 5 is that the wood pulp of 1:1 and SAP are mixed by weight ratio, thickness is 5mm, the long 39.4cm of sandwich layer, the wide 11.0cm of sandwich layer, size L, intermediate layer 2 is absorbent paper, and the grammes per square metre in intermediate layer 2 is 35g/m 2.The width on top layer 1 is 2.5 times of intermediate layer 2 width, and intermediate layer 2 is wrapped up by two edge contractions on top layer 1 completely, is bondd between top layer 1 and intermediate layer 2 by wet strength agent, and coating weight is 2.0gsm.
Embodiment 2
This NEW TYPE OF COMPOSITE core body is used for baby paper diaper B, compound core body comprises top layer and intermediate layer, top layer comprises again toilet paper layer and absorptive core, and toilet paper layer is positioned at absorptive core bottom and absorptive core with wide, and absorptive core is that the wood pulp of 1.5:1 and SAP are mixed by weight ratio, thickness is 4mm, the long 39.4cm of sandwich layer, the wide 11.0cm of narrow shelves, size L, intermediate layer is the one in bulky nonwoven cloth, hydrophilic nonwoven fabrics, spun-laced nonwoven fabric, and the grammes per square metre in intermediate layer is 80g/m 2.The width on top layer is 2.5 times of intermediate layer width, and intermediate layer is wrapped up by two edge contractions on top layer completely, is bondd between intermediate layer and top layer by wet strength agent, and coating weight is 3.0gsm.
Embodiment 3
This NEW TYPE OF COMPOSITE core body is used for baby paper diaper C, compound core body comprises top layer and intermediate layer, top layer comprises again toilet paper layer and absorptive core, and toilet paper layer is positioned at absorptive core bottom and absorptive core with wide, and absorptive core is that the wood pulp of 1.2:1 and SAP are mixed by weight ratio, thickness is 3.5mm, the long 39.4cm of sandwich layer, the wide 11.0cm of narrow shelves, size L, intermediate layer is dust-free paper, and the grammes per square metre in intermediate layer is 50g/m 2.The width on top layer is 2 times of intermediate layer width, and intermediate layer is wrapped up by two edge contractions on top layer completely, is bondd between intermediate layer and top layer by wet strength agent, and coating weight is 4.0gsm.
Performance test is carried out to three sections of baby paper diapers A, B, C in above-mentioned three embodiments, contrast test is use the Time of Fluff Slurry of 1.5:1 and the baby diaper product of SAP mixture core body and ordinary construction glue, its sandwich layer is long is 34.7cm, the wide 8.3cm of narrow shelves, size M, adhesive coating weight is 2.0gsm.
One, absorbent properties test result is as follows:
The above results shows, and the compound core body of this new structure is compared with traditional core body, and its saturation capacity is large, and lock outlet capacity is strong, and infiltration rate is fast, and namely absorbent properties are more excellent.
Two, bobbing machine sandwich layer strength test, method of testing adds a certain amount of normal saline at diaper absorptive core layer, hang on bobbing machine swing arm, carry out vibration-testing with specific speed, record time of vibration, the time is longer, wetting of sandwich layer is strong better, time is shorter, and wetting of sandwich layer is strong poorer, and test result is as follows:
The above results shows, and the compound core body of this new structure is compared with traditional core body, and its wet strength is large, and the absorption product using this NEW TYPE OF COMPOSITE core body not easy fracture in use, result of use is better.
Technique scheme only embodies the preferred embodiment of the present invention, can not be interpreted as the restriction to authorized range of the present invention, and all distortion of making according to the present invention and improvement, all belong to scope.

Claims (7)

1. a NEW TYPE OF COMPOSITE core body, it is characterized in that: comprise top layer and intermediate layer, adhesive bonds is passed through between top layer and intermediate layer, described top layer comprises again toilet paper layer and absorptive core, toilet paper layer to be positioned at outside absorptive core and with absorptive core with wide, described absorptive core is the mixture of wood pulp and SAP, and the width on described top layer is 2-2.5 times of intermediate layer width, and intermediate layer is wrapped up by two edge contractions on described top layer completely.
2. a kind of NEW TYPE OF COMPOSITE core body according to claim 1, is characterized in that: described top layer absorptive core is that 1-1.5:1 wood pulp and SAP are mixed by weight ratio.
3. a kind of NEW TYPE OF COMPOSITE core body according to claim 1, is characterized in that: the thickness on described top layer is 2-5mm.
4. a kind of NEW TYPE OF COMPOSITE core body according to claim 1, is characterized in that: described intermediate layer is the one in bulky nonwoven cloth, dust-free paper, absorbent paper, hydrophilic nonwoven fabrics, spun-laced nonwoven fabric.
5. a kind of NEW TYPE OF COMPOSITE core body according to claim 4, is characterized in that: the grammes per square metre in described intermediate layer is 35-80g/m 2.
6. a kind of NEW TYPE OF COMPOSITE core body according to claim 1, is characterized in that: described adhesive is wet strong rubber.
7. a kind of NEW TYPE OF COMPOSITE core body according to claim 6, is characterized in that: described wet strong rubber coating weight is more than or equal to 3gsm.
CN201510046073.9A 2015-01-29 2015-01-29 A kind of compound core body Active CN104605995B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105232230A (en) * 2015-10-14 2016-01-13 嘉兴润之缘养生文化有限公司 Polylactic acid fiber sanitary napkin
CN107184316A (en) * 2017-07-28 2017-09-22 广东佰分爱卫生用品有限公司 A kind of method that rationing-cutting type line glue bond production not discontinue does not act the paper diaper core body that sticks together
CN108024875A (en) * 2015-09-30 2018-05-11 大王制纸株式会社 Absorbent commodity and its manufacture method
CN109009683A (en) * 2018-07-17 2018-12-18 浙江优全护理用品科技有限公司 A kind of urine pants core and preparation method thereof quickly absorbed

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2225238Y (en) * 1995-06-30 1996-04-24 香港独资重庆永银化工发展有限公司 Super thin sanitary napkin
CN1177472A (en) * 1996-09-12 1998-04-01 尤妮佳股份有限公司 Absorbent product
CN1747704A (en) * 2003-02-10 2006-03-15 宝洁公司 Disposable absorbent article comprising a durable hydrophilic core wrap
CN201684088U (en) * 2010-01-21 2010-12-29 厦门兰海贸易有限公司 Compound core body paper diaper
CN103637883A (en) * 2013-11-19 2014-03-19 临安市振宇吸水材料有限公司 Water-absorption core body for hygienic product and production technology thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2225238Y (en) * 1995-06-30 1996-04-24 香港独资重庆永银化工发展有限公司 Super thin sanitary napkin
CN1177472A (en) * 1996-09-12 1998-04-01 尤妮佳股份有限公司 Absorbent product
CN1747704A (en) * 2003-02-10 2006-03-15 宝洁公司 Disposable absorbent article comprising a durable hydrophilic core wrap
CN201684088U (en) * 2010-01-21 2010-12-29 厦门兰海贸易有限公司 Compound core body paper diaper
CN103637883A (en) * 2013-11-19 2014-03-19 临安市振宇吸水材料有限公司 Water-absorption core body for hygienic product and production technology thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108024875A (en) * 2015-09-30 2018-05-11 大王制纸株式会社 Absorbent commodity and its manufacture method
CN108024875B (en) * 2015-09-30 2021-01-08 大王制纸株式会社 Absorbent article and method for manufacturing same
CN105232230A (en) * 2015-10-14 2016-01-13 嘉兴润之缘养生文化有限公司 Polylactic acid fiber sanitary napkin
CN107184316A (en) * 2017-07-28 2017-09-22 广东佰分爱卫生用品有限公司 A kind of method that rationing-cutting type line glue bond production not discontinue does not act the paper diaper core body that sticks together
CN109009683A (en) * 2018-07-17 2018-12-18 浙江优全护理用品科技有限公司 A kind of urine pants core and preparation method thereof quickly absorbed

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