公开(公告)号：US3728428A

公开(公告)日：1973-04-17

申请号：US3728428D

申请日：1971-06-10

Applicant: ALLIED CHEM

Inventor： TURNER G

IPC: B29C47/30 ,  D01D5/24 ,  D01D3/00 ,  B29F3/00

CPC classification number: B29C47/30 ,  B29C47/0014 ,  B29C47/0023 ,  B29C47/003 ,  D01D5/24 ,  Y10T428/2975

Abstract: A spinnerette for spinning hollow filaments having a maximum amount of hollow space in relation to the outer dimensions of said filaments. The filaments are extruded from a group of preferably three slots and corresponding three round openings or dots. The polymer occluding area defined by the arrangement of the slots forms substantially an equilateral triangle. The round openings are arranged near or at the ends of the slots, but not in communication with the slots. Filaments melt spun from the nested embodiment of this spinnerette consistently have above 35 percent hollow space. The spinnerette is much less subject to breakage than similar designs. Specific parameters for spinning with such as orifice configuration are set forth.

Abstract translation: 用于旋转中空丝的纺丝板，其具有相对于所述长丝的外部尺寸具有最大量的中空空间。 长丝从一组优选的三个狭缝和相应的三个圆形开口或点挤出。 由槽的布置限定的聚合物封闭区基本上形成等边三角形。 圆形开口设置在槽的近端或端部处，但不与槽连通。 从该喷丝头的嵌套实施例熔融纺丝的丝丝一直具有高于35％的中空空间。 与类似的设计相比，喷丝头比破损更少。 阐述了诸如孔口配置的纺纱的具体参数。

公开(公告)号：US3737505A

公开(公告)日：1973-06-05

申请号：US3737505D

申请日：1971-05-28

Applicant: ALLIED CHEM

Inventor： TURNER G ,  SCHUETTLER R ,  VARINA F ,  COLLINGWOOD G

IPC: D01D5/253

CPC classification number: D01D5/253 ,  Y10T428/2931

Abstract: A BIFILAMENT YARN COMPRISING TWO SYMMETRICAL LOBES FUSED SO THAT THE CONCAVE SIDES INTERCEPT AT ANGLE 0 RANGING FROM 10 TO 54*. THE YARN HAS A BROAD CONCAVE AREA AND A NARROW EDGE AREA OF CONVEX SHAPE AND PREEFRABLY A MODIFICATION RATIO OF BETWEEN 1.65 AND 3.0. THIS BIFILAMENT YARN, TEXTURED AND NON-TEXTURED, SEMIDULL AND BRIGHT, WHEN CONVERTED TO PLAIN KNIT HOISERY HAS A LUSTER IN THE RANGE OF 6.6 TO 21 (K/SX100) UNITS. THE TEXTURED AND NON-TEXTURED PLAIN KNIT TEXTILE ARTICLES CONSISTING OF THE BIFILAMENT YARNS OF THIS INVENTION AFTER REPETITIVE ELONGATIONS OF 25 PERCENT HAVE 150-300 PERCENT GREATER WORK OF RECOVERY AND EQUAL IMPROVEMENT IN RESISTANCE TO SAGGING AND WRINKLING THAN OTHER CROSS-SECTIONAL CONFIGURATIONS. THE BIFILAMENT YARNS ARE PREPARED BY MELT SPINNING THERMOPLASTIC HOMOPOLYMERS HAVING A RELATIVE FORMIC ACID VISCOSITY OF 25 TO 90 AT A TEMPERATURE OF 250-280*C. THROUGH TWIN ORIFICES SEPARATED FROM EACH OTHER FOR A DISTANCE OF 0.05 TO 4.0 MILS.

公开(公告)号：US3776796A

公开(公告)日：1973-12-04

申请号：US3776796D

申请日：1971-09-28

Applicant: ALLIED CHEM

Inventor： LIPSCOMB W ,  TURNER G

IPC: D04H3/03 ,  D04H3/05

CPC classification number: D04H3/03

Abstract: METHOD AND APPARATUS FOR PRODUCING A NONWOVEN WEB. CONTINUOUS POLYMER FILAMENT IS MELT SPUN, TREATED WITH A SUBSTANTIALLY PERMANENT ANTI-STATIC AGENT DRAWN UNIFORMLY ABOUT A SLOWLY ROTATING DRAW PIN, AND SPLAYED ONTO A CONVEYOR BY RECIPROCATION OF A SERIES OF AIR JET ASPIRATORS, EACH EMPLOYING AN ASPIRATING MEDIUM WHICH IS INTRODUCED INTO EACH ASPIRATOR AND FLOWS THROUGH EACH ASPIRATOR IN A DIRECTION SUBSTANTIALLY PARALLEL WITH THE ASPIRATOR AXIS, TO FORM A NONWOVEN WEB, WHICH IS THEREAFTER FUSION-BONDED BETWEEN ROLLS. FILAMENTS HAVING DIFFERENT PROPERTIES MAY BE USED.

公开(公告)号：US3738894A

公开(公告)日：1973-06-12

申请号：US3738894D

申请日：1971-09-28

Applicant: ALLIED CHEM

Inventor： LIPSCOMB W ,  TURNER G

IPC: D04H3/03 ,  D04H3/00

CPC classification number: D04H3/03

Abstract: BETWEEN THE TWO OPPOSING SURFACES. THE TWO OPPOSING SURFACES OF THE SPLAYING DEVICE HAVE CONTINUOUS SURFACES OF CURVATURE WHICH SURFACES EXHIBIT A CONVERGING TO DIVERGING PATTERN AS THE OPPOSING SURFACES EXTEND FROM THE EXIT OF THE ASPIRATOR. THE FORAMINOUS SPLAYING DEVICE IS POSITIONED NEAR THE EXIT OF AN ASPIRATOR SO AS TO SPREAD THE FILAMENTS IN SUBSTANTIALLY ALL DIRECTIONS AND THEREBY TO PROVIDE GREATER OPENNESS AND GREATER RANDOM LAYDOWN OF FILAMENTS.

AN APPARATUS FOR AUGMENTING DISPERSAL AND IMPROVING DEPOSITION OF A PLURALITY OF CONTINUOUS FILAMENTS ONTO A CONTINUOUSLY MOVING SURFACE WHEREBY RANDOM DISTRIBUTION OF THE FILAMENTS IS PROVIDED FOR HE PRODUCTION OF UNIFORMLY DISTRIBUTED NONWOVEN WEBS. SUCH APPARATUS COMPRISES A FORAMINAL SPLAYING DEVICE HAVING TWO OPPOSING SURFACES WITH HOLES EXTENDING THROUGH AT LEAST ONE OF THE TWO OPPOSING SURFACES. COMPRESSED GAS, E.G. AIR, IS DISCHARGED THROUGH THE HOLES IN SUBSTANTIALLY PARALLEL COLUMNS SO AS TO INTERPENETRATE A FILAMENT BUNDLE PASSING

公开(公告)号：US3736211A

公开(公告)日：1973-05-29

申请号：US3736211D

申请日：1971-09-28

Applicant: ALLIED CHEM

Inventor： LIPSCOMB W ,  TURNER G

IPC: D04H3/03 ,  D04H3/00

CPC classification number: D04H3/03

Abstract: AN APPARATUS FOR AUGMENTING DISPERSAL AND FOR IMPROVING DEPOSITION OF A PLURALITY OF CONTINUOUS FILAMENTS ONTO A CONTINUOUSLY MOVING SURFACE WHEREBY RANDOM DISTRIBUTION OF THE FILAMENTS IS PROVIDED FOR THE PRODUCTION OF UNIFORMLY DISTRIBUTED NONWOVEN WEBS. A NONMOVING TWOPLANAR DEFLECTOR IS POSITIONED NEAR THE EXIT OF AN ASPIRATOR SO AS TO PROVIDE GREATER OPENNES AND GREATER RANDOM LAYDOWN OF FILAMENTS.