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1. 发明申请

US20080182053A1 Shrink film containing semi-crystalline polyamide and process for making same 有权
标题翻译：含有半结晶聚酰胺的收缩膜及其制造方法
公开(公告)号：US20080182053A1
公开(公告)日：2008-07-31
申请号：US11801902
申请日：2007-05-11
申请人： Michael E. Broadus , Richard M. Dayrit , Brian P. Rivers , Roger D. Vrooman , Marvin R. Havens , Emmet Austin , Frank M. Hofmeister , Matthew D. Dawe , Nathanael R. Miranda , Christopher K. Robinson , Bryan B. Freeman , Josh E. Johnston
发明人： Michael E. Broadus , Richard M. Dayrit , Brian P. Rivers , Roger D. Vrooman , Marvin R. Havens , Emmet Austin , Frank M. Hofmeister , Matthew D. Dawe , Nathanael R. Miranda , Christopher K. Robinson , Bryan B. Freeman , Josh E. Johnston
IPC分类号： B65B53/02
CPC分类号： B32B27/34 , Y10T428/1328 , Y10T428/1379 , Y10T428/1383 , Y10T428/31725 , Y10T428/31739
摘要： A multilayer, heat-shrinkable film contains at least one semi-crystalline polyamide selected from the group consisting of polyamide 6, polyamide 66, polyamide 6/66, and polyamide 6/12. The film may have a total semi-crystalline polyamide content of at least 35 volume percent, based on total film volume, and a total free shrink at 185° F. of at least 35 percent. The film may have an FTIR Transmission Absorbance A1199/A1170 ratio of up to 1.65. The film may be a retortable film, capable of being used in a process for preparing a retorted packaged product. A process for making a heat-shrinkable annular film containing the semi-crystalline polyamide comprises extruding an annular extrudate downward from an annular die, quenching the annular extrudate by applying a quenching liquid to the annular extrudate, reheating the extrudate to an orientation temperature, and orienting the reheated annular extrudate while the reheated annular extrudate is in the solid state, the orientation being carried out with a total orientation factor of at least 2, to produce a film having a total free shrink at 185° F. of at least 10 percent.
摘要翻译：多层热收缩膜含有至少一种选自聚酰胺6，聚酰胺66，聚酰胺6/66和聚酰胺6/12的半结晶聚酰胺。基于总膜体积，膜可以具有至少35体积％的总半结晶聚酰胺含量，并且在185°F下的总自由收缩率至少为35％。该胶片可以具有高达1.65的FTIR透射率吸收率1199 / A 1170比。该膜可以是能够用于制备蒸煮包装产品的方法中的可蒸煮膜。制造含有半结晶聚酰胺的热收缩性环状膜的方法包括从环形模具向下挤出环形挤出物，通过向环形挤出物施加淬火液淬火环状挤出物，将挤出物再加热至取向温度，以及在重新加热的环状挤出物处于固态的同时，对再加热的环状挤出物进行定向，所述取向以总取向因子至少为2进行，以产生在185°F下的总自由收缩率为至少10％。

2. 发明授权

US07687123B2 Shrink film containing semi-crystalline polyamide and process for making same 有权
标题翻译：含有半结晶聚酰胺的收缩膜及其制造方法
公开(公告)号：US07687123B2
公开(公告)日：2010-03-30
申请号：US11801902
申请日：2007-05-11
申请人： Michael E. Broadus , Richard M. Dayrit , Brian P. Rivers , Roger D. Vrooman , Marvin R. Havens , Emmet Austin , Frank M. Hofmeister , Matthew D. Dawe , Nathanael R. Miranda , Christopher K. Robinson , Bryan E. Freeman , Josh E. Johnston
发明人： Michael E. Broadus , Richard M. Dayrit , Brian P. Rivers , Roger D. Vrooman , Marvin R. Havens , Emmet Austin , Frank M. Hofmeister , Matthew D. Dawe , Nathanael R. Miranda , Christopher K. Robinson , Bryan E. Freeman , Josh E. Johnston
IPC分类号： B65B53/00 , F16B4/00
CPC分类号： B32B27/34 , Y10T428/1328 , Y10T428/1379 , Y10T428/1383 , Y10T428/31725 , Y10T428/31739
摘要： A multilayer, heat-shrinkable film contains at least one semi-crystalline polyamide selected from the group consisting of polyamide 6, polyamide 66, polyamide 6/66, and polyamide 6/12. The film may have a total semi-crystalline polyamide content of at least 35 volume percent, based on total film volume, and a total free shrink at 185° F. of at least 35 percent. The film may have an FTIR Transmission Absorbance A1199/A1170 ratio of up to 1.65. The film may be a retortable film, capable of being used in a process for preparing a retorted packaged product. A process for making a heat-shrinkable annular film containing the semi-crystalline polyamide comprises extruding an annular extrudate downward from an annular die, quenching the annular extrudate by applying a quenching liquid to the annular extrudate, reheating the extrudate to an orientation temperature, and orienting the reheated annular extrudate while the reheated annular extrudate is in the solid state, the orientation being carried out with a total orientation factor of at least 2, to produce a film having a total free shrink at 185° F. of at least 10 percent.
摘要翻译：多层热收缩膜含有至少一种选自聚酰胺6，聚酰胺66，聚酰胺6/66和聚酰胺6/12的半结晶聚酰胺。基于总膜体积，膜可以具有至少35体积％的总半结晶聚酰胺含量，并且在185°F下的总自由收缩率至少为35％。该片可能具有高达1.65的FTIR透射率吸收比A1199 / A1170。该膜可以是能够用于制备蒸煮包装产品的方法中的可蒸煮膜。制造含有半结晶聚酰胺的热收缩性环状膜的方法包括从环形模具向下挤出环形挤出物，通过向环形挤出物施加淬火液淬火环状挤出物，将挤出物再加热至取向温度，以及在重新加热的环状挤出物处于固态的同时，对再加热的环状挤出物进行定向，所述取向以总取向因子至少为2进行，以产生在185°F下的总自由收缩率为至少10％。

3. 发明授权

US07744806B2 Process for making shrink film comprising rapidly-quenched semi-crystalline polyamide 有权
标题翻译：用于制造包含快速淬火的半结晶聚酰胺的收缩膜的方法
公开(公告)号：US07744806B2
公开(公告)日：2010-06-29
申请号：US11699532
申请日：2007-01-29
申请人： Michael E. Broadus , Richard M. Dayrit , Bryan E. Freeman , Frank M. Hofmeister , Brian P. Rivers , Roger D. Vrooman , Christopher K. Robinson , George D. Bolden , Robert W. Campbell , Nathanael R. Miranda
发明人： Michael E. Broadus , Richard M. Dayrit , Bryan E. Freeman , Frank M. Hofmeister , Brian P. Rivers , Roger D. Vrooman , Christopher K. Robinson , George D. Bolden , Robert W. Campbell , Nathanael R. Miranda
IPC分类号： B29C45/16
CPC分类号： B29C55/28 , B29C47/0021 , B29C47/0026 , B29C47/003 , B29C47/0057 , B29C47/0059 , B29C47/065 , B29C47/8805 , B29C47/883 , B29C47/8835 , B29C47/8845 , B29C47/8895 , B29C61/003 , B29K2077/00
摘要： As a first aspect, the present invention is directed to a process for making a heat-shrinkable annular film, comprising: (A) extruding an annular extrudate downward from an annular die; (B) quenching the annular extrudate by applying a quenching liquid to the annular extrudate; (C) reheating the extrudate to an orientation temperature of from 130° F. to 210° F., resulting in a reheated annular extrudate; and (D) orienting the reheated annular extrudate while the reheated annular extrudate is in the solid state, the orientation being carried out with a total orientation factor of at least 2, so that the resulting oriented, heat-shrinkable film has a total free shrink at 185° F. of at least 10 percent. The extrudate comprises at least one semi-crystalline polyamide selected from the group consisting of: (i) polyamide 6, (ii) polyamide 66, (iii) polyamide 6/66, and (iv) polyamide 6/12. The semi-crystalline polyamide makes up at least 5 volume percent of the annular extrudate. At least 50% of the quenching liquid cascades down the annular extrudate for a distance of at least 2 inches. The quenching liquid makes initial contact with the annular extrudate within 0.1 to 8 inches of the annular die.
摘要翻译：作为第一方面，本发明涉及一种制造热收缩性环状膜的方法，包括：（A）从环形模具向下挤出环形挤出物; （B）通过向环形挤出物施加淬火液淬火环形挤出物; （C）将挤出物再加热至取向温度为130°F至210°F，得到再加热的环状挤出物; 和（D）在重新加热的环状挤出物处于固态的同时使再加热的环状挤出物定向，所述取向以总取向因子至少为2进行，使得得到的取向的热收缩膜具有总自由收缩在185°F下至少10％。挤出物包含至少一种选自以下的半结晶聚酰胺：（i）聚酰胺6，（ii）聚酰胺66，（iii）聚酰胺6/66和（iv）聚酰胺6/12。半结晶聚酰胺占环形挤出物的至少5体积％。至少50％的淬火液体将环形挤出物向下延伸至少2英寸的距离。淬火液体与环形挤出物初始接触在环形模具的0.1至8英寸内。

4. 发明申请

US20080179780A1 Process for making shrink film comprising rapidly-quenched semi-crystalline polyamide 有权
标题翻译：用于制造包含快速淬火的半结晶聚酰胺的收缩膜的方法
公开(公告)号：US20080179780A1
公开(公告)日：2008-07-31
申请号：US11699532
申请日：2007-01-29
申请人： Michael E. Broadus , Richard M. Dayrit , Bryan E. Freeman , Frank M. Hofmeister , Brian P. Rivers , Roger D. Vrooman , Christopher K. Robinson , George D. Bolden , Robert W. Campbell , Nathanael R. Miranda
发明人： Michael E. Broadus , Richard M. Dayrit , Bryan E. Freeman , Frank M. Hofmeister , Brian P. Rivers , Roger D. Vrooman , Christopher K. Robinson , George D. Bolden , Robert W. Campbell , Nathanael R. Miranda
IPC分类号： B29C63/06 , D01D5/24
CPC分类号： B29C55/28 , B29C47/0021 , B29C47/0026 , B29C47/003 , B29C47/0057 , B29C47/0059 , B29C47/065 , B29C47/8805 , B29C47/883 , B29C47/8835 , B29C47/8845 , B29C47/8895 , B29C61/003 , B29K2077/00
摘要： As a first aspect, the present invention is directed to a process for making a heat-shrinkable annular film, comprising: (A) extruding an annular extrudate downward from an annular die; (B) quenching the annular extrudate by applying a quenching liquid to the annular extrudate; (C) reheating the extrudate to an orientation temperature of from 130° F. to 210° F., resulting in a reheated annular extrudate; and (D) orienting the reheated annular extrudate while the reheated annular extrudate is in the solid state, the orientation being carried out with a total orientation factor of at least 2, so that the resulting oriented, heat-shrinkable film has a total free shrink at 185° F. of at least 10 percent. The extrudate comprises at least one semi-crystalline polyamide selected from the group consisting of: (i) polyamide 6, (ii) polyamide 66, (iii) polyamide 6/66, and (iv) polyamide 6/12. The semi-crystalline polyamide makes up at least 5 volume percent of the annular extrudate. At least 50% of the quenching liquid cascades down the annular extrudate for a distance of at least 2 inches. The quenching liquid makes initial contact with the annular extrudate within 0.1 to 8 inches of the annular die.
摘要翻译：作为第一方面，本发明涉及一种制造热收缩性环状膜的方法，包括：（A）从环形模具向下挤出环形挤出物; （B）通过向环形挤出物施加淬火液淬火环形挤出物; （C）将挤出物再加热到取向温度为130°F至210°F，得到再加热的环状挤出物; 和（D）在重新加热的环状挤出物处于固态的同时使再加热的环状挤出物定向，所述取向以总取向因子至少为2进行，使得得到的取向的热收缩膜具有总自由收缩在185°F下至少10％。挤出物包含至少一种选自以下的半结晶聚酰胺：（i）聚酰胺6，（ii）聚酰胺66，（iii）聚酰胺6/66和（iv）聚酰胺6/12。半结晶聚酰胺占环形挤出物的至少5体积％。至少50％的淬火液体将环形挤出物向下延伸至少2英寸的距离。淬火液体与环形挤出物初始接触在环形模具的0.1至8英寸内。

5. 发明授权

US4997416A Method of making a stand-up plastic bag 失效
标题翻译：制作立式塑料袋的方法
公开(公告)号：US4997416A
公开(公告)日：1991-03-05
申请号：US533620
申请日：1990-06-05
申请人： David W. Mitchell , Roger D. Vrooman
发明人： David W. Mitchell , Roger D. Vrooman
IPC分类号： B29C65/74 , B31B37/00 , B31B39/00 , B65D33/25 , B65D75/00
CPC分类号： B65D75/008 , B29C65/18 , B29C65/7437 , B29C66/4312 , B29C66/71 , B29C66/712 , B29C66/723 , B29C66/73116 , B29C66/91411 , B29C66/91931 , B31B37/00 , B65D33/2508 , B29C66/91645 , B29C66/919 , B29C66/91935 , B31B2237/05 , B31B2237/20
摘要： An improved method of making a stand-up plastic bag in which heated pins are used to seal the gusset walls. The pins are heated at a temperature lower than melting point of the thermoplastic which forms the exterior contiguous portions of the gusset walls. The method includes the steps of supplying the film, folding the film to form the gusset, forming the heat seals for the gusset walls and the heat seals for the side seams at one temperature, forming the heat seals joining the gusset walls together at the same temperature using a heated pin seal bar, and separating the film into completed bags. The improved method provides greater efficiency and increased production rates.
摘要翻译：一种改进的制造立式塑料袋的方法，其中使用加热销来密封角撑板壁。销在比形成角撑板壁的外部连续部分的热塑性塑料的熔点低的温度下加热。该方法包括以下步骤：提供薄膜，折叠薄膜以形成角撑板，在一个温度下形成用于角撑板壁的热密封和侧缝的热密封，形成将角撑板壁连接在一起的热密封温度，使用加热的针密封条，并将膜分成成袋。改进的方法提供更高的效率和更高的生产率。

6. 发明授权

US4837849A Stand-up plastic bag and method of making same 失效
标题翻译：立式塑料袋及其制作方法
公开(公告)号：US4837849A
公开(公告)日：1989-06-06
申请号：US171053
申请日：1988-03-21
申请人： Laurence R. Erickson , R. Douglas Behr , Roger D. Vrooman
发明人： Laurence R. Erickson , R. Douglas Behr , Roger D. Vrooman
IPC分类号： B29C65/74 , B31B1/00 , B31B29/00 , B31B37/00 , B31B39/00 , B65D30/16 , B65D33/25 , B65D75/00
CPC分类号： B65D75/008 , B29C65/02 , B29C65/18 , B29C65/7437 , B29C66/4312 , B29C66/4322 , B29C66/91411 , B29C66/91931 , B31B37/00 , B65D33/2508 , B29C65/222 , B29C66/71 , B29C66/91645 , B29C66/919 , B29C66/91933 , B29C66/91935 , B31B2237/05 , B31B2237/20
摘要： A stand-up plastic bag has a pair of front and rear side walls defining an open bag mouth at upper edges thereof, and a pair of front and rear bottom gusset walls being disposed between the side walls. The walls are composed of a multi-layered film of different, heat-sealable, coextruded thermoplastics, such as polyethylene and Nylon. Polyethylene is on the interior surfaces and Nylon is on the exterior surfaces of the walls. The gusset walls have upper portions interconnected together to form a bottom wall extending between the front and rear side walls. The gusset walls also have lower portions joined by heat seals to lower portions of the front and rear side walls at contiguous portions of polyethylene material on their interior surfaces to form a support band which connects to and extends below the bottom wall. The front and rear gusset walls also have opposite longitudinal edges joined together by heat seals at contiguous portions of Nylon material on the exterior surfaces thereof which complete formation of the support band as a continuous self-standing structure that defines with the bottom wall a stand-up base on the bag.
摘要翻译：具有在其上边缘（12A，B）处限定开放袋口（20）的一对前（12）和后（14）侧壁的立式袋（10）和一对前后底部角撑板设置在所述壁之间的壁（16,18）。这些壁由不同的可热密封的共挤出的热塑性材料如聚乙烯和尼龙的多层膜组成。聚乙烯可用于内壁，尼龙可用于袋的外壁。角撑板壁具有互连在一起以形成在前侧壁和后侧壁之间延伸的底壁（60）的上部（22,26）。角撑板壁还具有下部（24,28），其下部部分（24,28）通过在其内表面上的材料的邻接部分处的热密封到前侧壁和后侧壁（12,14）的下部（34,36）而接合，以形成支撑带（56），其连接并延伸到底壁（60）的下方。前后角撑板壁（16,18）还具有相对的纵向边缘（16A，18A），其通过在其外表面（44,46）上的材料的邻接部分处的热密封而连接在一起，从而完成支撑带（56 ）作为连续的独立结构，其与底壁一起定义在袋上的立式基座。

7. 发明授权

US06550966B1 Freezer storage bag 失效
标题翻译：冷冻储存袋
公开(公告)号：US06550966B1
公开(公告)日：2003-04-22
申请号：US08776681
申请日：1997-05-12
申请人： Zain E. M. Saad , Douglas P. Gundlach , Virginia D. Karul , Roger D. Vrooman , Roger V. McIntosh , Richard Dawkins , David A. Smith , Michael A. Babinec , Linda W. Allison , Claudia J. Gerardo
发明人： Zain E. M. Saad , Douglas P. Gundlach , Virginia D. Karul , Roger D. Vrooman , Roger V. McIntosh , Richard Dawkins , David A. Smith , Michael A. Babinec , Linda W. Allison , Claudia J. Gerardo
IPC分类号： B65D3008
CPC分类号： B65D33/01 , B65D31/04 , Y10T428/1334 , Y10T428/1338 , Y10T428/1352 , Y10T428/24479 , Y10T428/24975
摘要： A recloseable multibag freezer bag including an inner liner bag and an outer support bag. The inner liner bag is a thermoplastic with a thickness of less than 2 mil and a specified secant modulus, has a mouth through which the interior of the inner liner bag is accessible, and is joined by a mouth seal to the throat of the support bag along the entire length of the mouth of the liner bag substantially enclosing an air space between facing walls of the inner liner bag and outer support bag. The outer support bag is a thermoplastic, and has a mouth and a throat. A recloseable mouth seal is affixed to its mouth to provide recloseable access to the interior of the liner bag through the outer bag while maintaining the enclosed air space between the inner and outer bags.
摘要翻译：一种可再封闭的多片冷冻袋，包括内衬袋和外部支撑袋。内衬袋是热塑性塑料，其厚度小于2密耳，具有规定的割线模数，具有口部，内衬袋的内部通过该口可接近，并且通过口密封连接到支撑袋的喉部沿着衬里袋的口部的整个长度基本上包围内衬袋和外部支撑袋的相对壁之间的空气空间。外部支撑袋是热塑性的，并且具有口和喉部。将可重新封闭的口密封件固定到其口部，以通过外袋提供可回收的通向内袋的内部，同时保持内袋和外袋之间的封闭空气空间。

8. 发明授权

US5804265A Functional freezer storage bag 失效
标题翻译：功能冷冻储存袋
公开(公告)号：US5804265A
公开(公告)日：1998-09-08
申请号：US601602
申请日：1996-02-14
申请人： Zain E. M. Saad , Douglas P. Gundlach , Virginia D. Karul , Roger D. Vrooman , Michael A. Babinec , Linda W. Allison , Claudia J. Gerardo
发明人： Zain E. M. Saad , Douglas P. Gundlach , Virginia D. Karul , Roger D. Vrooman , Michael A. Babinec , Linda W. Allison , Claudia J. Gerardo
IPC分类号： A23B4/06 , B31B39/00 , B65D30/08 , B65D77/04 , B65D81/18 , B65D81/26 , B65B65/00 , B65D33/00
CPC分类号： B31B37/00 , B65D31/04 , B31B2237/05 , Y10T428/1334 , Y10T428/24041 , Y10T428/24273 , Y10T428/24802 , Y10T428/24826 , Y10T428/24975 , Y10T428/27
摘要： The present invention provides a freezer bag comprising a multibag having at least an inner liner bag and an outer support bag, the inner liner bag having a first sidewall and a second sidewall attached together along respective lateral edges forming edge seals, each sidewall having a top edge, and the liner bag having a folded edge defining the bottom of the liner bag, the outer support bag having two sidewalls attached together along respective lateral edges forming edge seals, each sidewall having top edges defining the opening to the multibag, and the support bag having a folded edge defining the bottom of the multibag, the top edges of the liner bag being attached to an inner surface of each respective sidewall of the support bag wherein the liner is thermoplastic and has a thickness of less than 2.0 mil (50.8 micron).
摘要翻译：本发明提供了一种冷冻袋，其包括具有至少内衬袋和外支撑袋的多片，所述内衬袋具有第一侧壁和第二侧壁，所述第一侧壁和第二侧壁沿着形成边缘密封件的各个侧边缘附接在一起，每个侧壁具有顶部并且所述衬里袋具有限定所述衬里袋的底部的折叠边缘，所述外部支撑袋具有两个侧壁，所述两个侧壁沿着形成边缘密封件的各个侧边缘附接在一起，每个侧壁具有限定所述多片材的开口的顶部边缘，并且所述支撑件袋子具有限定多片材的底部的折叠边缘，衬里袋的顶部边缘附接到支撑袋的每个相应侧壁的内表面，其中衬里是热塑性的并且具有小于2.0密耳（50.8微米）的厚度）。

9. 发明授权

US4954124A Stand-up plastic bag and method of making same 失效
标题翻译：立式塑料袋及其制作方法
公开(公告)号：US4954124A
公开(公告)日：1990-09-04
申请号：US303310
申请日：1989-01-30
申请人： Laurence R. Erickson , R. Douglas Behr , Roger D. Vrooman
发明人： Laurence R. Erickson , R. Douglas Behr , Roger D. Vrooman
IPC分类号： B29C65/74 , B31B37/00 , B31B39/00 , B65D33/25 , B65D75/00
CPC分类号： B65D75/008 , B29C65/18 , B29C65/7437 , B29C66/431 , B29C66/4312 , B29C66/43129 , B29C66/91411 , B29C66/91931 , B31B37/00 , B65D33/2508 , B29C65/222 , B29C66/71 , B29C66/91645 , B29C66/919 , B29C66/91933 , B29C66/91935 , B31B2237/05 , B31B2237/20
摘要： A stand-up plastic bag has a pair of front and rear side walls defining an open bag mouth at upper edges thereof, and a pair of front and rear bottom gusset walls being disposed between the side walls. The walls are composed of a multi-layered film of different, heat-sealable, coextruded thermoplastics, such as polyethylene and Nylon. Polyethylene is on the interior surfaces and Nylon is on the exterior surfaces of the walls. The gusset walls have upper portions interconnected together to form a bottom wall extending between the front and rear side walls. The gusset walls also have lower portions joined by heat seals to lower portion of the front and rear side walls at contiguous portions of polyethylene material on their interior surfaces to form a support band which connects to and extends below the bottom wall. The front and rear gusset walls also have opposite longitudinal edges joined together by heat seals at contiguous portions of Nylon material on the exterior surfaces thereof which complete formation of the support band as a continuous self-standing structure that defines with the bottom wall a stand-up base on the bag.
摘要翻译：立式塑料袋具有一对前侧壁和后侧壁，其在其上边缘处限定开口袋口，并且一对前后底部角撑板壁设置在侧壁之间。墙壁由不同的，可热封的共挤出的热塑性塑料如聚乙烯和尼龙的多层膜组成。聚乙烯在内表面上，尼龙在墙壁的外表面上。角撑板壁具有互连在一起的上部部分，以形成在前侧壁和后侧壁之间延伸的底壁。角撑板壁还具有通过热密封连接到其内表面上的聚乙烯材料的邻接部分处的前侧壁和后侧壁的下部的下部分，以形成连接到底壁并延伸到底壁下方的支撑带。前后角撑板壁还具有通过在其外表面上的尼龙材料的邻接部分处的热密封连接在一起的相对纵向边缘，其完全形成支撑带，作为连续自立结构，其将底壁限定为独立的，在袋子上。

10. 发明授权

US5080643A Method of making a stand-up plastic bag 失效
标题翻译：制作立式塑料袋的方法
公开(公告)号：US5080643A
公开(公告)日：1992-01-14
申请号：US533621
申请日：1990-06-05
申请人： David W. Mitchell , Roger D. Vrooman
发明人： David W. Mitchell , Roger D. Vrooman
IPC分类号： B29C65/74 , B31B37/00 , B31B39/00 , B65D33/25 , B65D75/00
CPC分类号： B65D75/008 , B29C65/18 , B29C65/7437 , B29C66/3452 , B29C66/4312 , B29C66/71 , B29C66/712 , B29C66/723 , B29C66/73116 , B29C66/91411 , B29C66/91931 , B31B37/00 , B65D33/2508 , B29C66/91645 , B29C66/919 , B29C66/91933 , B29C66/91935 , B31B2237/05 , B31B2237/20
摘要： An improved method of making a stand-up plastic bag in which the side seam seals are formed at the same time as the gusset wall seals. The method includes the steps of supplying the film, folding the film to form the gusset, simultaneously forming the heat seals for the gusset walls and the side seams at one temperature, forming the heat seals to join the gusset walls together at a higher temperature, and separating the film into completed bags. The improved method provides greater efficiency and increased production rates.
摘要翻译：一种改进的制造立式塑料袋的方法，其中在与角撑板密封件同时形成侧缝密封件。该方法包括以下步骤：供应薄膜，折叠薄膜以形成角撑板，同时在一个温度下形成用于角撑板壁和侧缝的热密封，形成热密封，以在较高温度下将角撑板壁连接在一起，并将薄膜分离成完整的袋子。改进的方法提供更高的效率和更高的生产率。

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