公开(公告)号：US3752457A

公开(公告)日：1973-08-14

申请号：US3752457D

申请日：1970-12-01

Applicant: SNIA VISCOSA

Inventor： PARMEGGIANI P ,  NICITA D ,  D ALO B

IPC: D01D5/16 ,  D02J1/22 ,  D01D5/12

CPC classification number: D02J1/228 ,  D01D5/16 ,  D02J1/226

Abstract: A method and apparatus for continuously carrying out spinning and stretching operations on extruded synthetic filaments, wherein, between a conventional spinning apparatus and a conventional stretching apparatus for continuous treatment of the filaments, a bending and stretching action is imparted to the filaments by means of stationary bending means adapted to exert a predetermined frictional resistance on the running filaments.

Abstract translation: 一种用于在挤出的合成长丝上连续进行纺丝和拉伸操作的方法和装置，其中在常规纺丝装置和用于连续处理长丝的常规拉伸装置之间，通过固定的方式向长丝施加弯曲和拉伸作用 弯曲装置适于在运行的细丝上施加预定的摩擦阻力。

公开(公告)号：US3718270A

公开(公告)日：1973-02-27

申请号：US3718270D

申请日：1970-12-01

Applicant: SNIA VISCOSA

Inventor： D ALO B ,  PARMEGGIANI P ,  NICITA D

IPC: B65H51/16 ,  B65H54/88 ,  B65H17/32

CPC classification number: B65H51/16 ,  B65H54/88 ,  B65H2701/31

Abstract: A device for pneumatically sucking and dragging the cut ends of textile filaments and yarns traveling at high speeds includes a passage wherein filaments or yarns travel in front of a suction orifice and a related removal duct to which a subatmospheric pressure is imparted. On the other side of the passage and coaxial with the orifice a nozzle is provided to form a superatmospheric pressure air stream incident to the filaments or yarns in cooperation with the suction orifice.

Abstract translation: 用于气动吸引和拖动纺织细丝和高速行进的纱线的切割端的装置包括通道，其中丝线或纱线在吸入孔前面行进，并且相应的去除管道被赋予低于大气压力。 在通道的另一侧并且与孔口同轴地设置喷嘴以形成与抽吸孔协作地入射到细丝或纱线的超大气压力空气流。

公开(公告)号：NO122604B

公开(公告)日：1971-07-19

申请号：NO15243564

申请日：1964-03-14

Applicant: SNIA VISCOSA

Inventor： D ALO B ,  PERAZZONI P ,  BELLANO A ,  CICERI L ,  SICLARI F ,  GIACOBONE P

IPC: D01D1/04 ,  D01D1/06 ,  D01D1/10 ,  D01F6/60

Abstract: 1,019,099. Melt-spinning polyamides. SNIA VISCOSA SOC. NATURALE INDUSTRIA APPLICAZIONI VISCOSA S.p.A. March 10, 1964 [March 15, 1963], No. 10026/64. Heading B5B. In melt-spinning polyamides, the polymer chips, after having been dried, by heating in vacuo, are artificially cooled, or allowed to cool spontaneously, in an atmosphere of inert gas to a temperature not exceeding 50‹ C., and preferably between 25‹ and 30‹ C., before being transferred to the feed hopper of the melt-spinning apparatus, preferably while still surrounded by an atmosphere of the inert gas. The chips may be artificially cooled or allowed to cool spontaneously in the apparatus in which they have been dried in vacuo, a dry inert gas such as dry nitrogen having been introduced into the drying chamber until the interior of the latter is at atmospheric pressure and cold water being circulated through the jacket of the drying chamber (which may be rotated to tumble the chips) until they have been cooled to the desired temperature. Alternatively the chips may be cooled, while they are being mechanically conveyed from the drier to the melt-spinning apparatus, by contacting them with a stream of a cooled dry inert gas such as dry nitrogen. In either case the initial humidity of the inert gas may be so controlled so that it does not exceed a predetermined level, such as 70 milligrams of moisture per cubic metre of gas. In a third method the hot dry chips are discharged from the drying chamber on to a hollow horizontal metallic plate through the interior of which flows a stream of cold water. The plate is enclosed in a chamber through which flows a stream of dry nitrogen and the polymer chips are caused to travel along the entire length of the plate by vibrating the plate. The cooled chips are discharged into a duct through which they are pneumatically conveyed to the melting apparatus by a current of dry nitrogen.

公开(公告)号：SE301690B

公开(公告)日：1968-06-17

申请号：SE319764

申请日：1964-03-13

Applicant: SNIA VISCOSA

Inventor： D ALO B ,  PERAZZONI P ,  BELLANO A ,  CICERI L ,  SICLARI F ,  GIACOBONE P

IPC: D01D1/04 ,  D01D1/06 ,  D01D1/10 ,  D01F6/60 ,  D01D1/00

Abstract: 1,019,099. Melt-spinning polyamides. SNIA VISCOSA SOC. NATURALE INDUSTRIA APPLICAZIONI VISCOSA S.p.A. March 10, 1964 [March 15, 1963], No. 10026/64. Heading B5B. In melt-spinning polyamides, the polymer chips, after having been dried, by heating in vacuo, are artificially cooled, or allowed to cool spontaneously, in an atmosphere of inert gas to a temperature not exceeding 50‹ C., and preferably between 25‹ and 30‹ C., before being transferred to the feed hopper of the melt-spinning apparatus, preferably while still surrounded by an atmosphere of the inert gas. The chips may be artificially cooled or allowed to cool spontaneously in the apparatus in which they have been dried in vacuo, a dry inert gas such as dry nitrogen having been introduced into the drying chamber until the interior of the latter is at atmospheric pressure and cold water being circulated through the jacket of the drying chamber (which may be rotated to tumble the chips) until they have been cooled to the desired temperature. Alternatively the chips may be cooled, while they are being mechanically conveyed from the drier to the melt-spinning apparatus, by contacting them with a stream of a cooled dry inert gas such as dry nitrogen. In either case the initial humidity of the inert gas may be so controlled so that it does not exceed a predetermined level, such as 70 milligrams of moisture per cubic metre of gas. In a third method the hot dry chips are discharged from the drying chamber on to a hollow horizontal metallic plate through the interior of which flows a stream of cold water. The plate is enclosed in a chamber through which flows a stream of dry nitrogen and the polymer chips are caused to travel along the entire length of the plate by vibrating the plate. The cooled chips are discharged into a duct through which they are pneumatically conveyed to the melting apparatus by a current of dry nitrogen.