Apparatus and method of forming a composite web structure and an absorbent structure comprising said composite web
The invention relates to a method and a device of forming a composite web containing at least one layer of superabsorbent particulate material and at least one layer of fibrous material, said web being intended for use as an absorbent structure in absorbent articles. The layers of fibrous material a...
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| creator | DOVERTIE RALPH |
| description | The invention relates to a method and a device of forming a composite web containing at least one layer of superabsorbent particulate material and at least one layer of fibrous material, said web being intended for use as an absorbent structure in absorbent articles. The layers of fibrous material and at least one layer of particulate material are deposited in consecutive steps on a moving foraminous support (12), wherein the airborn stream of particulate material when entering an applicator chamber (15) is alloewd to expand and is forced to change flow direction at an angle between about 90 and about 125°, preferably between 100 and 120°, with respect to the first flow direction, resulting in a considerable reduction of speed of the stream of particulate material as it exits the outlet opening (19) of the applicator chamber (15). The invention further refers to an absorbent structure comprising a composite web made according to the method and comprising at least one discrete layer (22a, b) of superabsorbent particles arranged between discrete layers (19a-c) of fibrous material. |
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The layers of fibrous material and at least one layer of particulate material are deposited in consecutive steps on a moving foraminous support (12), wherein the airborn stream of particulate material when entering an applicator chamber (15) is alloewd to expand and is forced to change flow direction at an angle between about 90 and about 125°, preferably between 100 and 120°, with respect to the first flow direction, resulting in a considerable reduction of speed of the stream of particulate material as it exits the outlet opening (19) of the applicator chamber (15). The invention further refers to an absorbent structure comprising a composite web made according to the method and comprising at least one discrete layer (22a, b) of superabsorbent particles arranged between discrete layers (19a-c) of fibrous material.</description><language>eng</language><subject>APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ; ATOMISING APPARATUS ; BANDAGES, DRESSINGS OR ABSORBENT PADS ; BRAIDING ; COTTON-WOOL ; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS ; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS ; FILTERS IMPLANTABLE INTO BLOOD VESSELS ; FIRST-AID KITS ; FOMENTATION ; HUMAN NECESSITIES ; HYGIENE ; KNITTING ; LACE-MAKING ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL ; MEDICAL OR VETERINARY SCIENCE ; NON-WOVEN FABRICS ; NOZZLES ; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES ; PERFORMING OPERATIONS ; PROSTHESES ; SPRAYING APPARATUS ; SPRAYING OR ATOMISING IN GENERAL ; TEXTILES ; TRANSPORTING ; TREATMENT OR PROTECTION OF EYES OR EARS ; TRIMMINGS ; WADDING</subject><creationdate>2007</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=20070307&DB=EPODOC&CC=CN&NR=1925922A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070307&DB=EPODOC&CC=CN&NR=1925922A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DOVERTIE RALPH</creatorcontrib><title>Apparatus and method of forming a composite web structure and an absorbent structure comprising said composite web</title><description>The invention relates to a method and a device of forming a composite web containing at least one layer of superabsorbent particulate material and at least one layer of fibrous material, said web being intended for use as an absorbent structure in absorbent articles. The layers of fibrous material and at least one layer of particulate material are deposited in consecutive steps on a moving foraminous support (12), wherein the airborn stream of particulate material when entering an applicator chamber (15) is alloewd to expand and is forced to change flow direction at an angle between about 90 and about 125°, preferably between 100 and 120°, with respect to the first flow direction, resulting in a considerable reduction of speed of the stream of particulate material as it exits the outlet opening (19) of the applicator chamber (15). The invention further refers to an absorbent structure comprising a composite web made according to the method and comprising at least one discrete layer (22a, b) of superabsorbent particles arranged between discrete layers (19a-c) of fibrous material.</description><subject>APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL</subject><subject>ATOMISING APPARATUS</subject><subject>BANDAGES, DRESSINGS OR ABSORBENT PADS</subject><subject>BRAIDING</subject><subject>COTTON-WOOL</subject><subject>DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. 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STENTS</topic><topic>FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS</topic><topic>FILTERS IMPLANTABLE INTO BLOOD VESSELS</topic><topic>FIRST-AID KITS</topic><topic>FOMENTATION</topic><topic>HUMAN NECESSITIES</topic><topic>HYGIENE</topic><topic>KNITTING</topic><topic>LACE-MAKING</topic><topic>LAYERED PRODUCTS</topic><topic>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</topic><topic>MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>NON-WOVEN FABRICS</topic><topic>NOZZLES</topic><topic>ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES</topic><topic>PERFORMING OPERATIONS</topic><topic>PROSTHESES</topic><topic>SPRAYING APPARATUS</topic><topic>SPRAYING OR ATOMISING IN GENERAL</topic><topic>TEXTILES</topic><topic>TRANSPORTING</topic><topic>TREATMENT OR PROTECTION OF EYES OR EARS</topic><topic>TRIMMINGS</topic><topic>WADDING</topic><toplevel>online_resources</toplevel><creatorcontrib>DOVERTIE RALPH</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DOVERTIE RALPH</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Apparatus and method of forming a composite web structure and an absorbent structure comprising said composite web</title><date>2007-03-07</date><risdate>2007</risdate><abstract>The invention relates to a method and a device of forming a composite web containing at least one layer of superabsorbent particulate material and at least one layer of fibrous material, said web being intended for use as an absorbent structure in absorbent articles. The layers of fibrous material and at least one layer of particulate material are deposited in consecutive steps on a moving foraminous support (12), wherein the airborn stream of particulate material when entering an applicator chamber (15) is alloewd to expand and is forced to change flow direction at an angle between about 90 and about 125°, preferably between 100 and 120°, with respect to the first flow direction, resulting in a considerable reduction of speed of the stream of particulate material as it exits the outlet opening (19) of the applicator chamber (15). The invention further refers to an absorbent structure comprising a composite web made according to the method and comprising at least one discrete layer (22a, b) of superabsorbent particles arranged between discrete layers (19a-c) of fibrous material.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BANDAGES, DRESSINGS OR ABSORBENT PADS BRAIDING COTTON-WOOL DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE KNITTING LACE-MAKING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MEDICAL OR VETERINARY SCIENCE NON-WOVEN FABRICS NOZZLES ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PERFORMING OPERATIONS PROSTHESES SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TEXTILES TRANSPORTING TREATMENT OR PROTECTION OF EYES OR EARS TRIMMINGS WADDING |
| title | Apparatus and method of forming a composite web structure and an absorbent structure comprising said composite web |
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