NON-WOVEN-FABRIC LAYERED BODY FOR SOUND-ABSORBING MATERIAL, AND SOUND-ABSORBING MATERIAL
An object of the present invention is to provide a non-woven fabric for a sound-absorbing material and a sound-absorbing material which are excellent in thickness recoverability and followability during molding and excellent in sound-absorbing performance. In order to solve such a problem, there is...
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| creator | OMORI, Taira NAKAHARA, Makoto |
| description | An object of the present invention is to provide a non-woven fabric for a sound-absorbing material and a sound-absorbing material which are excellent in thickness recoverability and followability during molding and excellent in sound-absorbing performance. In order to solve such a problem, there is provided a non-woven-fabric layered body for a sound-absorbing material in which a non-woven fabric layer α and a non-woven fabric layer β are layered, in which the non-woven fabric layer α contains short fibers A having a fineness of 0.4 to 3.8 dtex, short fibers B having a fineness of 4.0 to 22.0 dtex, and short fibers C1 containing a resin having a melting point of 135 to 190°C in an outer surface layer, a total content mass of the short fibers A and the short fibers B with respect to a total mass of the non-woven fabric layer α is 86 to 98% by mass, a content mass of the short fibers C1 with respect to the total mass of the non-woven fabric layer α is 2 to 14% by mass, and a content mass ratio of the short fibers A and the short fibers B (content mass of short fibers A/content mass of short fibers B) is 0.05 to 3.80, the non-woven fabric layer β contains short fibers C2 containing a resin having a melting point of 70 to 190°C in an outer surface layer, and a content mass of the short fiber C2 with respect to a total mass of the non-woven fabric layer β is 20 to 60% by mass, and the non-woven fabric layer α and the non-woven fabric layer β are partially fused. |
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In order to solve such a problem, there is provided a non-woven-fabric layered body for a sound-absorbing material in which a non-woven fabric layer α and a non-woven fabric layer β are layered, in which the non-woven fabric layer α contains short fibers A having a fineness of 0.4 to 3.8 dtex, short fibers B having a fineness of 4.0 to 22.0 dtex, and short fibers C1 containing a resin having a melting point of 135 to 190°C in an outer surface layer, a total content mass of the short fibers A and the short fibers B with respect to a total mass of the non-woven fabric layer α is 86 to 98% by mass, a content mass of the short fibers C1 with respect to the total mass of the non-woven fabric layer α is 2 to 14% by mass, and a content mass ratio of the short fibers A and the short fibers B (content mass of short fibers A/content mass of short fibers B) is 0.05 to 3.80, the non-woven fabric layer β contains short fibers C2 containing a resin having a melting point of 70 to 190°C in an outer surface layer, and a content mass of the short fiber C2 with respect to a total mass of the non-woven fabric layer β is 20 to 60% by mass, and the non-woven fabric layer α and the non-woven fabric layer β are partially fused.</description><language>eng ; fre ; ger</language><subject>ACOUSTICS ; ACOUSTICS NOT OTHERWISE PROVIDED FOR ; BRAIDING ; COTTON-WOOL ; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS ; 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 ; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL ; MUSICAL INSTRUMENTS ; NON-WOVEN FABRICS ; PERFORMING OPERATIONS ; PHYSICS ; SOUND-PRODUCING DEVICES ; TEXTILES ; TRANSPORTING ; TRIMMINGS ; VEHICLES IN GENERAL ; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR ; WADDING</subject><creationdate>2024</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=20240320&DB=EPODOC&CC=EP&NR=4253037A4$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25547,76298</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240320&DB=EPODOC&CC=EP&NR=4253037A4$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OMORI, Taira</creatorcontrib><creatorcontrib>NAKAHARA, Makoto</creatorcontrib><title>NON-WOVEN-FABRIC LAYERED BODY FOR SOUND-ABSORBING MATERIAL, AND SOUND-ABSORBING MATERIAL</title><description>An object of the present invention is to provide a non-woven fabric for a sound-absorbing material and a sound-absorbing material which are excellent in thickness recoverability and followability during molding and excellent in sound-absorbing performance. In order to solve such a problem, there is provided a non-woven-fabric layered body for a sound-absorbing material in which a non-woven fabric layer α and a non-woven fabric layer β are layered, in which the non-woven fabric layer α contains short fibers A having a fineness of 0.4 to 3.8 dtex, short fibers B having a fineness of 4.0 to 22.0 dtex, and short fibers C1 containing a resin having a melting point of 135 to 190°C in an outer surface layer, a total content mass of the short fibers A and the short fibers B with respect to a total mass of the non-woven fabric layer α is 86 to 98% by mass, a content mass of the short fibers C1 with respect to the total mass of the non-woven fabric layer α is 2 to 14% by mass, and a content mass ratio of the short fibers A and the short fibers B (content mass of short fibers A/content mass of short fibers B) is 0.05 to 3.80, the non-woven fabric layer β contains short fibers C2 containing a resin having a melting point of 70 to 190°C in an outer surface layer, and a content mass of the short fiber C2 with respect to a total mass of the non-woven fabric layer β is 20 to 60% by mass, and the non-woven fabric layer α and the non-woven fabric layer β are partially fused.</description><subject>ACOUSTICS</subject><subject>ACOUSTICS NOT OTHERWISE PROVIDED FOR</subject><subject>BRAIDING</subject><subject>COTTON-WOOL</subject><subject>FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS</subject><subject>KNITTING</subject><subject>LACE-MAKING</subject><subject>LAYERED PRODUCTS</subject><subject>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</subject><subject>MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL</subject><subject>METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL</subject><subject>MUSICAL INSTRUMENTS</subject><subject>NON-WOVEN FABRICS</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICS</subject><subject>SOUND-PRODUCING DEVICES</subject><subject>TEXTILES</subject><subject>TRANSPORTING</subject><subject>TRIMMINGS</subject><subject>VEHICLES IN GENERAL</subject><subject>VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR</subject><subject>WADDING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZIjw8_fTDfcPc_XTdXN0CvJ0VvBxjHQNcnVRcPJ3iVRw8w9SCPYP9XPRdXQK9g9y8vRzV_B1DHEN8nT00VFw9HPBKcvDwJqWmFOcyguluRkU3FxDnD10Uwvy41OLCxKTU_NSS-JdA0yMTI0NjM0dTYyJUAIAfBowqg</recordid><startdate>20240320</startdate><enddate>20240320</enddate><creator>OMORI, Taira</creator><creator>NAKAHARA, Makoto</creator><scope>EVB</scope></search><sort><creationdate>20240320</creationdate><title>NON-WOVEN-FABRIC LAYERED BODY FOR SOUND-ABSORBING MATERIAL, AND SOUND-ABSORBING MATERIAL</title><author>OMORI, Taira ; NAKAHARA, Makoto</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP4253037A43</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2024</creationdate><topic>ACOUSTICS</topic><topic>ACOUSTICS NOT OTHERWISE PROVIDED FOR</topic><topic>BRAIDING</topic><topic>COTTON-WOOL</topic><topic>FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS</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>METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL</topic><topic>MUSICAL INSTRUMENTS</topic><topic>NON-WOVEN FABRICS</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>SOUND-PRODUCING DEVICES</topic><topic>TEXTILES</topic><topic>TRANSPORTING</topic><topic>TRIMMINGS</topic><topic>VEHICLES IN GENERAL</topic><topic>VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR</topic><topic>WADDING</topic><toplevel>online_resources</toplevel><creatorcontrib>OMORI, Taira</creatorcontrib><creatorcontrib>NAKAHARA, Makoto</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>OMORI, Taira</au><au>NAKAHARA, Makoto</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>NON-WOVEN-FABRIC LAYERED BODY FOR SOUND-ABSORBING MATERIAL, AND SOUND-ABSORBING MATERIAL</title><date>2024-03-20</date><risdate>2024</risdate><abstract>An object of the present invention is to provide a non-woven fabric for a sound-absorbing material and a sound-absorbing material which are excellent in thickness recoverability and followability during molding and excellent in sound-absorbing performance. In order to solve such a problem, there is provided a non-woven-fabric layered body for a sound-absorbing material in which a non-woven fabric layer α and a non-woven fabric layer β are layered, in which the non-woven fabric layer α contains short fibers A having a fineness of 0.4 to 3.8 dtex, short fibers B having a fineness of 4.0 to 22.0 dtex, and short fibers C1 containing a resin having a melting point of 135 to 190°C in an outer surface layer, a total content mass of the short fibers A and the short fibers B with respect to a total mass of the non-woven fabric layer α is 86 to 98% by mass, a content mass of the short fibers C1 with respect to the total mass of the non-woven fabric layer α is 2 to 14% by mass, and a content mass ratio of the short fibers A and the short fibers B (content mass of short fibers A/content mass of short fibers B) is 0.05 to 3.80, the non-woven fabric layer β contains short fibers C2 containing a resin having a melting point of 70 to 190°C in an outer surface layer, and a content mass of the short fiber C2 with respect to a total mass of the non-woven fabric layer β is 20 to 60% by mass, and the non-woven fabric layer α and the non-woven fabric layer β are partially fused.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR BRAIDING COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS 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 METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS NON-WOVEN FABRICS PERFORMING OPERATIONS PHYSICS SOUND-PRODUCING DEVICES TEXTILES TRANSPORTING TRIMMINGS VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR WADDING |
| title | NON-WOVEN-FABRIC LAYERED BODY FOR SOUND-ABSORBING MATERIAL, AND SOUND-ABSORBING MATERIAL |
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