Fibrous acoustical material for reducing noise transmission and method for producing same
    2.
    发明授权
    Fibrous acoustical material for reducing noise transmission and method for producing same 有权
    用于减少噪声传播的纤维声学材料及其制造方法

    公开(公告)号:US06312542B1

    公开(公告)日:2001-11-06

    申请号:US09699462

    申请日:2000-10-31

    IPC分类号: B32B2902

    摘要: The invention relates to a fibrous acoustical material for reducing noise transmission. This fibrous acoustical material comprises first, second and third fibers. The first fiber has a first fineness of 1.5-20 deniers and a first softening point. The second fiber has a second fineness of 1.5-15 deniers. At least a surface of the second fiber has a second softening point which is at least 30° C. lower than the first softening point. The third fiber has a third fineness of 1.5-15 deniers. At least a surface of the third fiber has a third softening point which is lower than the second softening point and at least 80° C. lower than the first softening point. The first, second and third fibers are respectively in amounts of 10-90 wt %, 5-85 wt % and 5-85 wt %, based on a total weight of the first, second and third fibers. The first, second and third fibers are each within a range of from 20 to 100 mm in average fiber length. The fibrous acoustical material has an average apparent density of from 0.01 to 0.8 g/cm3. The fibrous acoustical material is light in weight and superior in acoustical capability, heat resistance and resistance to compressive force.

    摘要翻译: 本发明涉及一种用于减少噪音传播的纤维材料。 这种纤维性声学材料包括第一,第二和第三纤维。 第一纤维的第一细度为1.5-20旦尼尔和第一软化点。 第二纤维的第二纤度为1.5-15旦尼尔。 至少第二纤维的表面具有比第一软化点低至少30℃的第二软化点。 第三纤维的第三纤度为1.5-15旦。 至少第三纤维的表面具有比第二软化点低的第三软化点,并且比第一软化点低至少80℃。 基于第一,第二和第三纤维的总重量,第一,第二和第三纤维的量分别为10-90重量%,5-85重量%和5-85重量%。 第一,第二和第三纤维的平均纤维长度各自在20-100mm的范围内。 纤维状声学材料的平均表观密度为0.01〜0.8g / cm 3。 纤维性声学材料重量轻,声学性能,耐热性和抗压缩性优异。

    Fibrous acoustical material for reducing noise transmission and method
for producing the same
    3.
    发明授权
    Fibrous acoustical material for reducing noise transmission and method for producing the same 失效
    用于减少噪声传播的纤维声学材料及其制造方法

    公开(公告)号:US6165921A

    公开(公告)日:2000-12-26

    申请号:US33932

    申请日:1998-03-02

    摘要: The invention relates to a fibrous acoustical material for reducing noise transmission. This fibrous acoustical material comprises first, second and third fibers. The first fiber has a first fineness of 1.5-20 deniers and a first softening point. The second fiber has a second fineness of 1.5-15 deniers. At least a surface of the second fiber has a second softening point which is at least 30.degree. C. lower than the first softening point. The third fiber has a third fineness of 1.5-15 deniers. At least a surface of the third fiber has a third softening point which is lower than the second softening point and at least 80.degree. C. lower than the first softening point. The first, second and third fibers are respectively in amounts of 10-90 wt %, 5-85 wt % and 5-85 wt %, based on a total weight of the first, second and third fibers. The first, second and third fibers are each within a range of from 20 to 100 mm in average fiber length. The fibrous acoustical material has an average apparent density of from 0.01 to 0.8 g/cm.sup.3. The fibrous acoustical material is light in weight and superior in acoustical capability, heat resistance and resistance to compressive force.

    摘要翻译: 本发明涉及一种用于减少噪音传播的纤维材料。 这种纤维性声学材料包括第一,第二和第三纤维。 第一纤维的第一细度为1.5-20旦尼尔和第一软化点。 第二纤维的第二纤度为1.5-15旦尼尔。 至少第二纤维的表面具有比第一软化点低至少30℃的第二软化点。 第三纤维的第三纤度为1.5-15旦。 至少第三纤维的表面具有比第二软化点低的第三软化点,并且比第一软化点低至少80℃。 基于第一,第二和第三纤维的总重量,第一,第二和第三纤维的量分别为10-90重量%,5-85重量%和5-85重量%。 第一,第二和第三纤维的平均纤维长度各自在20-100mm的范围内。 纤维状声学材料的平均表观密度为0.01〜0.8g / cm 3。 纤维性声学材料重量轻,声学性能,耐热性和抗压缩性优异。

    Ultra-bulky fiber aggregate and production method thereof
    4.
    发明授权
    Ultra-bulky fiber aggregate and production method thereof 失效
    超大纤维聚集体及其制造方法

    公开(公告)号:US5569525A

    公开(公告)日:1996-10-29

    申请号:US256321

    申请日:1994-07-01

    摘要: This ultra-bulky fiber aggregate is obtained by blending (A) a polyester fiber and (B) a core-sheath type composite fiber wherein a low melting point component lower in melting point than the core is used for the sheath. The interlacing portions of three-dimensionally continuous fibers are fused by melting of the sheath portions of the core-sheath type composite fiber. The fiber aggregate has a thickness of at least 200 mm and a density of 0.02 to 0.1 g/cm.sup.3, and varies in density within .+-.5% in all of the longitudinal and transverse directions and the direction of height. The fiber aggregate can be used as a shoulder pad and a cushion material when it is cut. The production method of this fiber aggregate comprises blending (A) a polyester fiber and (B) a core-sheath type composite fiber using a low melting point component lower in melting point than the core for the sheath to obtain a card web, temporarily fusing card webs by far infrared rays or a hot air heater to laminate webs as required by a predetermined density and a predetermined thickness, and heat-treating the resulting laminate so as to mutually fuse the layers forming the laminate, wherein the heat-treatment is carried out by placing the laminate into a steam oven while it is compressed and clamped between two upper and lower plates and introducing the steam, the laminate being subjected to the heat-treatment while kept erect.

    摘要翻译: PCT No.PCT / JP93 / 01583 Sec。 371日期:1994年7月1日 102(e)日期1994年7月1日PCT提交1993年10月29日PCT公布。 公开号WO94 / 10366 日期:1994年5月11日该超大型纤维聚集体通过将(A)聚酯纤维和(B)芯鞘型复合纤维(其熔点低于芯的低熔点成分用于护套)而获得。 三维连续纤维的交织部分通过熔化芯鞘型复合纤维的护套部分而熔化。 纤维聚集体具有至少200mm的厚度和0.02至0.1g / cm 3的密度,并且在所有纵向和横向以及高度方向上的密度在+/- 5%内变化。 纤维聚集体在切割时可以用作肩垫和缓冲材料。 该纤维集合体的制造方法包括:(A)聚酯纤维和(B)使用低于熔融点的低熔点组分的芯鞘型复合纤维,以获得纸网,暂时熔融 通过远红外线卡片网或热空气加热器按需要以预定的密度和预定的厚度层压纤维网,并对所得的层压体进行热处理,以便相互融合形成层压体的层,其中进行热处理 通过将层压体压缩并夹在两个上板和下板之间并引入蒸汽,将层压板放置在蒸汽炉中,将层压板保持直立进行热处理。