NON-WOVEN FABRIC FOR SOUND-ABSORBING MATERIAL, SOUND-ABSORBING MATERIAL, AND METHOD FOR PRODUCING NON-WOVEN FABRIC FOR SOUND-ABSORBING MATERIAL

    公开(公告)号:EP3937164A1

    公开(公告)日:2022-01-12

    申请号:EP20767015.9

    申请日:2020-03-02

    IPC分类号: G10K11/162 G10K11/168

    摘要: Objects of the present invention are to provide a sound-absorbing material nonwoven fabric and a sound-absorbing material that each exhibit excellent sound absorption performance in a low frequency region and a high frequency region and are also excellent in productivity and quality, and to provide a method for producing such a sound-absorbing material nonwoven fabric. A sound-absorbing material nonwoven fabric according to the present invention includes 30 to 80 mass% of short fibers A having a fineness of 0.4 to 0.9 dtex and 20 to 70 mass% of short fibers B having a fineness of 1.1 to 20.0 dtex. A carding passage coefficient of the short fibers A calculated from the following equation (1) is in a range of 15 to 260. Carding passage coefficient = fineness × strength × √ elongation percentage × √ number of crimps × √ crimping degree / fiber length

    LAMINATED NONWOVEN FABRIC
    2.
    发明公开

    公开(公告)号:EP3591107A1

    公开(公告)日:2020-01-08

    申请号:EP18761768.3

    申请日:2018-02-21

    IPC分类号: D04H1/4374 A45D44/22 B32B5/26

    摘要: It is an object of the present invention to provide a laminated nonwoven fabric achieving both handling properties during manufacturing and use and adherence to a skin surface at a high level particularly when used for a face mask. The laminated nonwoven fabric includes a nonwoven fabric layer (A) and a nonwoven fabric layer (B). The nonwoven fabric layer (A) is formed from a fiber A having a single fiber diameter of 50 nm or more and 800 nm or less, and the nonwoven fabric layer (B) is formed from a fiber B having a single fiber diameter of 3 µm or more and 30 µm or less. The nonwoven fabric layer (B) includes 15 to 40% by mass of a fiber B1 to all of the fibers constituting the nonwoven fabric layer (B), the fiber having tensile strength of 2.0 cN/dtex or less as measured based on JIS L 1015: 2010 8.7.2. The nonwoven fabric layer (B) includes a fiber B2 having tensile strength exceeding 2.0 cN/dtex as measured based on JIS L 1015: 2010 8.7.2. The nonwoven fabric layer (A) is disposed as an outermost layer of at least one surface.

    DUST COLLECTING FILTER CLOTH AND BAG FILTER
    3.
    发明授权
    DUST COLLECTING FILTER CLOTH AND BAG FILTER 无效
    灰尘过滤网面料和过滤袋

    公开(公告)号:EP1116809B1

    公开(公告)日:2006-02-08

    申请号:EP99937015.8

    申请日:1999-08-10

    IPC分类号: D04H1/42 B01D39/16 B32B5/02

    CPC分类号: B01D39/1623 B01D39/2017

    摘要: A dust collecting filter cloth comprising a foundation cloth and a web, wherein at least the web is formed of a sectionally deformed polyphenylene sulfide fiber; and a bag filter consisting of the dust collecting filter cloth which, when used in an exhaust gas dust collecting bag filter filtering device, provides an excellent trapping efficiency despite its small pressure drop, thereby constituting a useful dust collecting material excellent in heat resistance and trapping efficiency.

    NON-WOVEN FABRIC FOR SKIN CARE PRODUCTS, FACE MASK, AND CLEANSING SHEET

    公开(公告)号:EP3862475A1

    公开(公告)日:2021-08-11

    申请号:EP19869314.5

    申请日:2019-09-26

    摘要: Provided is a nonwoven fabric for skin care products having excellent handleability when a skin care product is made and having excellent adhesion to skin and wipeability of cosmetics attached to skin when the skin care product is made. The nonwoven fabric for skin care products according to the present invention is a nonwoven fabric for skin care products including: a thermoplastic resin fiber having a single fiber diameter of 50 nm or more and 800 nm or less; and a cellulose fiber, in which a tensile strength of the cellulose fiber measured in accordance with JIS L 1015:2010 8.7.2 is 1.9 cN/dtex or less, a total content of the thermoplastic resin fiber and the cellulose fiber is 85% by mass or more relative to a total mass of the nonwoven fabric for skin care products, a content ratio by mass of the thermoplastic resin fiber and the cellulose fiber (thermoplastic resin fiber/cellulose fiber) is 0.23 to 1.50, and a density of the nonwoven fabric for skin care products is 0.08 g/cm 3 to 0.16 g/cm 3 .

    DUST COLLECTING FILTER CLOTH AND BAG FILTER
    6.
    发明公开
    DUST COLLECTING FILTER CLOTH AND BAG FILTER 无效
    除尘过滤器布袋过滤器

    公开(公告)号:EP1116809A1

    公开(公告)日:2001-07-18

    申请号:EP99937015.8

    申请日:1999-08-10

    IPC分类号: D04H1/42 B01D39/16 B32B5/02

    CPC分类号: B01D39/1623 B01D39/2017

    摘要: Provided are a dust-collecting filter cloth that comprises a base fabric and web, wherein at least the web comprises modified cross-section fibers of polyphenylene sulfide; and a bag filter made of the filter cloth. When fitted to an exhaust gas dust collector, the bag filter involves little pressure loss and ensures increased dust-collecting efficiency. As being resistant to heat and ensuring good dust-collecting efficiency, the filter cloth is useful for dust collection.

    摘要翻译: 本发明提供一种集尘过滤布,其包括基布和织物,其中至少所述织物包含聚苯硫醚的改性截面纤维; 以及由滤布制成的袋式过滤器。 当安装在废气集尘器上时,袋式过滤器几乎没有压力损失并确保提高集尘效率。 由于耐热且确保良好的集尘效率,滤布对收集灰尘非常有用。

    NON-WOVEN-FABRIC LAYERED BODY FOR SOUND-ABSORBING MATERIAL, AND SOUND-ABSORBING MATERIAL

    公开(公告)号:EP4253037A1

    公开(公告)日:2023-10-04

    申请号:EP22749620.5

    申请日:2022-01-28

    摘要: 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.