CN203994961U - Pe/tie/pa/tie/pa/tie/pe/eva/pvdc/eva/pe 11层共挤深拉伸膜 - Google Patents
Pe/tie/pa/tie/pa/tie/pe/eva/pvdc/eva/pe 11层共挤深拉伸膜 Download PDFInfo
- Publication number
- CN203994961U CN203994961U CN201420485098.XU CN201420485098U CN203994961U CN 203994961 U CN203994961 U CN 203994961U CN 201420485098 U CN201420485098 U CN 201420485098U CN 203994961 U CN203994961 U CN 203994961U
- Authority
- CN
- China
- Prior art keywords
- tie
- eva
- pvdc
- layers
- extrusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920001328 Polyvinylidene chloride Polymers 0.000 title claims abstract description 27
- 239000005033 polyvinylidene chloride Substances 0.000 title claims abstract description 27
- 238000001125 extrusion Methods 0.000 title claims abstract description 18
- 238000004806 packaging method and process Methods 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 235000013365 dairy product Nutrition 0.000 abstract description 2
- 235000013622 meat product Nutrition 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 9
- 239000012528 membrane Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
- B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
- B29C48/3363—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die using a layered die, e.g. stacked discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
本实用新型公开一种PE/TIE/PA/TIE/PA/TIE/PE/EVA/PVDC/EVA/PE 11层共挤深拉伸膜，从外到内依次为PE、TIE、PA、TIE、PA、TIE、PE、EVA、PVDC、EVA、PE。本实用新型的优点是：本实用新型的11层共挤拉伸膜，PVDC层两侧为EVA，克服了含有粘合剂的缺陷，拉伸深度达11cm，用于深拉伸高强度要求产品包装使用，可用于肉制品轻包装及海产品、乳制品包装。
Description
技术领域
本实用新型涉及包装材料领域，具体说是一种膜，更具体说是一种共挤膜。
背景技术
薄膜的加工中将一种原料挤出到已制成的另一种薄膜上或将已制成的不同种类的薄膜相互黏合到一起而成为多层薄膜，这种产品称为复合膜。复合膜的材料大多数为塑料，但也可用纸、金属箔(通常为铝)或织物等。复合膜的基本要求就是层与层之间要有良好的黏接性以保证包装的整体力学性能。此外，复合膜多用于食品包装，在复合膜的加工中要使用黏合剂，其溶剂的选择和黏接工艺等都要满足相应的卫生标准要求。
共挤膜具有复合膜的大部分特征，由于层与层之间是靠热熔结合而无需黏合剂，因此对食品包装共挤膜的卫生安全性要相对可靠。
共挤薄膜在加工过程中具有拉伸的特点，塑料拉伸后可相应提高强度，也可以在中间加入尼龙、茂金属聚乙烯等塑料材料，使其具备超过一般塑料包装的复合强度，不存在分层剥离现象，柔软性好，热封性能优良。
PVDC,学名为“聚偏二氯乙烯”，它是一种无毒无味、安全可靠的高阻隔材料，除具有塑料的一般性能外，还具有耐油性、耐腐蚀性等特点，可广泛应用于食品包装等行业。
美国陶氏化学公司的PhilipKwok,SteveJenkins和宾顿工程公司的JosephDooley在其论文“加工高阻隔PVDC的新工艺”中公开了 以下内容：PVDC在150-170℃范围内可以承受6-8分钟的加热时间，而在210-220℃时，承受时间不足30秒；而本申请的共挤材料加热温度为：PE：160-170℃；EVA：160-180℃；PA粘结剂在200℃，而PA要保证其流平性最低也要在220℃成型。因此，共挤拉伸膜结构设计必须考虑到不同材料的受热温度及受热时间问题。
中国专利申请号201220654117.8公开了一种PVDC复合膜，该专利是一种复合膜，并不是一种共挤膜。
GB/T28117-2011公开了一些PVDC共挤膜，但该标准所公开的PVDC共挤膜有个共同的特点，就是PVDC层的上下相邻层均采用TIE,而TIE是一种粘合树脂，其结构没有克服复合膜的缺陷。
实用新型内容
为解决上述技术问题，本实用新型公开一种PE/TIE/PA/TIE/PA/TIE/PE/EVA/PVDC/EVA/PE 11层共挤深拉伸膜，其特征在于：从外到内依次为PE、TIE、PA、TIE、PA、TIE、PE、EVA、PVDC、EVA、PE。本实用新型的11层共挤拉伸膜是采用一种PVDC多层共挤模具制备的，所述模具具有多个环形或锥形芯柱，所述芯柱外围设置多层用于挤出不同材料的模具层；所述模具层内设置自熔融热塑性材料入口至环形挤出出口的流道；PVDC挤出层设置多个与挤出机连接的流道，多个流道在中心位置形成螺旋状形态；所述PP、PE、EVA的流道，采取一分二，二分四，四分八的迷宫式无死角流道。
本实用新型的优点是：本实用新型的11层共挤拉伸膜，PVDC层两侧为EVA，仅仅在PVDC层的一侧含有TIE,而PVDC具有高阻隔功能，因此，使用不含TIE的一侧与食品接触，克服了前面所述的含有粘合剂的缺陷；拉伸深度达11cm，用于深拉伸高强度要求产品包装使用，可用于肉制品轻包装及海产品、乳制品包装。
附图说明
图1为11层共挤深拉伸膜的结构示意图；
图2为为PVDC模具层的流道示意图；
图3为一分二，二分四，四分八的迷宫式无死角流道示意图。
具体实施方式
下面结合附图具体说明本实用新型，5层共挤拉伸膜的结构如图1所示，从外到内依次为PP或PE、EVA、PVDC、EVA、PE。本实用新型采用一种PVDC多层共挤模具制备的，如图2、图3所示，所述模具具有多个环形或锥形芯柱，所述芯柱外围设置多层用于挤出不同材料的模具层；所述模具层内设置自熔融热塑性材料入口至环形挤出出口的流道；PVDC层203采用多入口的流道2031设计，3个流道2031在中心位置形成螺旋状形态；使PVDC在成型过程中每一台挤出机的原料在1/3到圆周内就完成成型。也可采用其他数量的通道，如2个、4个等，具体可根据膜的厚度、层数等设定。
Claims (1)
1.PE/TIE/PA/TIE/PA/TIE/PE/EVA/PVDC/EVA/PE 11层共挤深拉伸膜，其特征在于：从外到内依次为PE、TIE、PA、TIE、PA、TIE、PE、EVA、PVDC、EVA、PE。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420485098.XU CN203994961U (zh) | 2014-08-26 | 2014-08-26 | Pe/tie/pa/tie/pa/tie/pe/eva/pvdc/eva/pe 11层共挤深拉伸膜 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420485098.XU CN203994961U (zh) | 2014-08-26 | 2014-08-26 | Pe/tie/pa/tie/pa/tie/pe/eva/pvdc/eva/pe 11层共挤深拉伸膜 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203994961U true CN203994961U (zh) | 2014-12-10 |
Family
ID=52035018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420485098.XU Expired - Lifetime CN203994961U (zh) | 2014-08-26 | 2014-08-26 | Pe/tie/pa/tie/pa/tie/pe/eva/pvdc/eva/pe 11层共挤深拉伸膜 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203994961U (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034505A (zh) * | 2015-05-22 | 2015-11-11 | 苏州天加新材料科技有限公司 | 高气体阻隔性多层共挤热封膜 |
| CN105365314A (zh) * | 2014-08-26 | 2016-03-02 | 丹东全德高科技包装有限公司 | Pe/tie/pa/tie/pa/tie/pe/eva/pvdc/eva/pe 11层共挤深拉伸膜 |
-
2014
- 2014-08-26 CN CN201420485098.XU patent/CN203994961U/zh not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365314A (zh) * | 2014-08-26 | 2016-03-02 | 丹东全德高科技包装有限公司 | Pe/tie/pa/tie/pa/tie/pe/eva/pvdc/eva/pe 11层共挤深拉伸膜 |
| CN105034505A (zh) * | 2015-05-22 | 2015-11-11 | 苏州天加新材料科技有限公司 | 高气体阻隔性多层共挤热封膜 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104772956B (zh) | 一种轻量包装膜及其制备方法 | |
| CN203994961U (zh) | Pe/tie/pa/tie/pa/tie/pe/eva/pvdc/eva/pe 11层共挤深拉伸膜 | |
| CN101927591A (zh) | 耐低温三层共挤复合薄膜及其制备方法 | |
| CN105365313A (zh) | Pp/eva/pvdc/eva/pe 5层共挤拉伸膜 | |
| CN105437686A (zh) | Pa/tie/pe/eva/pvdc/eva/pe7层共挤深拉伸膜 | |
| CN105437687A (zh) | Pe/tie/pa/tie/pe/eva/pvdc/eva/pe9层共挤深拉伸膜 | |
| CN204054835U (zh) | Pp/eva/pvdc/eva/pe 5层共挤拉伸膜 | |
| CN204054836U (zh) | 一种含有pvdc的7层共挤深拉伸膜 | |
| CN204054837U (zh) | 一种含有pvdc的9层共挤深拉伸膜 | |
| CN203268649U (zh) | 能够目视内容物的包装容器用盖部件及包装容器 | |
| CN101376440B (zh) | 包装软管 | |
| CN103331970A (zh) | 多层共挤双向拉伸高温蒸煮阻隔尼龙塑料肠衣膜及其制备方法 | |
| CN105365314A (zh) | Pe/tie/pa/tie/pa/tie/pe/eva/pvdc/eva/pe 11层共挤深拉伸膜 | |
| CN206106516U (zh) | 一种九层共挤高温蒸煮深拉伸膜 | |
| CN105196679B (zh) | 一种多层吸塑深成型包装膜材料及其生产工艺 | |
| CN107351482A (zh) | 一种适用于耐蒸煮杀菌工艺的纸铝塑包装材料及制备方法 | |
| WO2005030478A1 (fr) | Film multicouche coextrude pour moulage par soufflage a effet barriere eleve | |
| CN204278474U (zh) | 一种pvdc多层共挤模具 | |
| CN204136390U (zh) | 一种具有调温功能的pvdc多层共挤模具 | |
| CN204309224U (zh) | 全候性pvdc多层共挤吹塑薄膜机组 | |
| CN105034511A (zh) | 一种环保型真空压缩袋及其生产工艺 | |
| US20140370212A1 (en) | Packaging film with superior seal, barrier, and flex crack resistance | |
| CN101417519A (zh) | 一种五层共挤高性能复合浅盘片材及其加工方法 | |
| SE1400205A1 (sv) | Förfarande för framställning av en värmebeständig polymerbelagd ugnskartong, en ugnskartong som kan erhållas genomförfarandet, ett livsmedelstråg, samt en livsmedelsförpackning | |
| CN103252955A (zh) | 耐低温三层共挤复合薄膜的制备方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |
|
| CX01 | Expiry of patent term |