<button id="puwmu"></button>

    1. <s id="puwmu"><object id="puwmu"></object></s>
          <legend id="puwmu"><p id="puwmu"></p></legend>

        1. <em id="puwmu"><acronym id="puwmu"><u id="puwmu"></u></acronym></em>
        2. <th id="puwmu"></th>
          <em id="puwmu"><acronym id="puwmu"></acronym></em>
        3. <dd id="puwmu"></dd>

          Copyright ? Shandong Kingson packing tech. co., ltd 魯 ICP 魯ICP備13003121號-1  Powered by www.300.cn

          Search

          International sales deparment :

          Export director :  Richard Bao

          Moblie :  +86 15054704098

          TEL :     +86 537 3154227

          Email :    admin@kingsonpacking.com

          Domestic  sales department :

          Sales manager :  Mr. Li

          Mobile : +86 13954733186

          TEL :   +86 537 3154228

          Email:   info@kingsonpacking.com 

          Address : 12 st Industry Park , High Tech Zone , JINING , 
                           SHANDONG Province , CHINA

          TEL :+86-537-3154227/228/229

          FAX : +86-537-3154230

          |
          Technology

          EXTRUSION:
          BRIEF DESCRIPTION OF THE MANUFACTURING PROCESS OF  FILMS:
          The transformation process of is called “DOUBLE BUBBLE”.

          The first phase is the extrusion of polymer in a descending direction through a multilayer die which forms a primary tube that is immediately cooled.

          The primary tube is then pulled to the top of the orientation tower, using a Pull Unit.

          At the top of the tower, the primary tube is drawn in a downward direction and, at the same time, it is heated to a temperature just below the melt point, supported by infra-red resistances. At the start-up, when this temperature is reached, air pressure is introduced expanding the tube to the gauge required.

          The biaxial orientation takes place as the tube is expanded and the downward speed is accelerated.

          After this operation, the bubble is collapsed between two sets of rollers. The resulting flat sheets are then cut and rewound onto master rolls.

           

          CONVERTING:
          Slitting
          Folding
          Marking
          Corona Treatment
          Pre-perforation
          Micro-perforation

          人妻少妇中文字幕久久_国产aⅴ无码专区亚洲av_chinesemature老熟妇高潮_韩国三级中文字幕HD无码

          <button id="puwmu"></button>

          1. <s id="puwmu"><object id="puwmu"></object></s>
                <legend id="puwmu"><p id="puwmu"></p></legend>

              1. <em id="puwmu"><acronym id="puwmu"><u id="puwmu"></u></acronym></em>
              2. <th id="puwmu"></th>
                <em id="puwmu"><acronym id="puwmu"></acronym></em>
              3. <dd id="puwmu"></dd>