Apparatus and method
A method of bonding a fibrous material such as the non-woven fabric 146 of an absorbent core and a (PVA or PVOH) polyvinyl alcohol film 144 in a bottom sheet of a sanitary pad comprises applying a polyvinyl alcohol solution binder layer 148 to a surface of the PVA film and/or to a surface of the fib...
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| creator | Olivia Youngjoo Ahn Aaron Mathews Koshy Sebastian William Macnair-Smith |
| description | A method of bonding a fibrous material such as the non-woven fabric 146 of an absorbent core and a (PVA or PVOH) polyvinyl alcohol film 144 in a bottom sheet of a sanitary pad comprises applying a polyvinyl alcohol solution binder layer 148 to a surface of the PVA film and/or to a surface of the fibrous material 146 such that the applied PVA solution 148 is positioned between the PVA film 144 and the fibrous material 146 upon contact. A PVA primer layer 142 may also be applied to the exposed surface of the non-woven fabric 146. Upon disposal in water, soluble PVA binders and PVA films dissolve and allow insoluble layer components to disperse. Additional methods are disclosed for manufacturing a sanitary pad and a bottom layer of a sanitary pad, attaching and assembling release liners, and the patterning of and patterning adhesives on release liners. Various compositions of sanitary pads are also disclosed. |
| format | Patent |
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A PVA primer layer 142 may also be applied to the exposed surface of the non-woven fabric 146. Upon disposal in water, soluble PVA binders and PVA films dissolve and allow insoluble layer components to disperse. Additional methods are disclosed for manufacturing a sanitary pad and a bottom layer of a sanitary pad, attaching and assembling release liners, and the patterning of and patterning adhesives on release liners. Various compositions of sanitary pads are also disclosed.</description><language>eng</language><subject>BANDAGES, DRESSINGS OR ABSORBENT PADS ; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES ; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS ; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR ; FILTERS IMPLANTABLE INTO BLOOD VESSELS ; FIRST-AID KITS ; FOMENTATION ; HUMAN NECESSITIES ; HYGIENE ; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES ; MEDICAL OR VETERINARY SCIENCE ; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL ; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES ; PROSTHESES ; TREATMENT OR PROTECTION OF EYES OR EARS</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230111&DB=EPODOC&CC=GB&NR=2608695A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230111&DB=EPODOC&CC=GB&NR=2608695A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Olivia Youngjoo Ahn</creatorcontrib><creatorcontrib>Aaron Mathews Koshy</creatorcontrib><creatorcontrib>Sebastian William Macnair-Smith</creatorcontrib><title>Apparatus and method</title><description>A method of bonding a fibrous material such as the non-woven fabric 146 of an absorbent core and a (PVA or PVOH) polyvinyl alcohol film 144 in a bottom sheet of a sanitary pad comprises applying a polyvinyl alcohol solution binder layer 148 to a surface of the PVA film and/or to a surface of the fibrous material 146 such that the applied PVA solution 148 is positioned between the PVA film 144 and the fibrous material 146 upon contact. A PVA primer layer 142 may also be applied to the exposed surface of the non-woven fabric 146. Upon disposal in water, soluble PVA binders and PVA films dissolve and allow insoluble layer components to disperse. Additional methods are disclosed for manufacturing a sanitary pad and a bottom layer of a sanitary pad, attaching and assembling release liners, and the patterning of and patterning adhesives on release liners. Various compositions of sanitary pads are also disclosed.</description><subject>BANDAGES, DRESSINGS OR ABSORBENT PADS</subject><subject>CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES</subject><subject>DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. 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A PVA primer layer 142 may also be applied to the exposed surface of the non-woven fabric 146. Upon disposal in water, soluble PVA binders and PVA films dissolve and allow insoluble layer components to disperse. Additional methods are disclosed for manufacturing a sanitary pad and a bottom layer of a sanitary pad, attaching and assembling release liners, and the patterning of and patterning adhesives on release liners. Various compositions of sanitary pads are also disclosed.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TREATMENT OR PROTECTION OF EYES OR EARS |
| title | Apparatus and method |
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