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CN111038046A - 易撕膜 - Google Patents

易撕膜 Download PDF

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Publication number
CN111038046A
CN111038046A CN201911313199.2A CN201911313199A CN111038046A CN 111038046 A CN111038046 A CN 111038046A CN 201911313199 A CN201911313199 A CN 201911313199A CN 111038046 A CN111038046 A CN 111038046A
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Prior art keywords
layer
easy
tear film
tear
heat
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Pending
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CN201911313199.2A
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English (en)
Inventor
黄依凡
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Zhejiang Yiyou Packaging Technology Co ltd
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Zhejiang Yiyou Packaging Technology Co ltd
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Priority to CN201911313199.2A priority Critical patent/CN111038046A/zh
Publication of CN111038046A publication Critical patent/CN111038046A/zh
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/242—All polymers belonging to those covered by group B32B27/32
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/246—All polymers belonging to those covered by groups B32B27/32 and B32B27/30
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability

Landscapes

  • Laminated Bodies (AREA)

Abstract

本发明提出一种易撕膜，包括依序设置的表层(3)、阻隔层(4)、热封层(5)，易撕膜的总厚度小于或等于120微米，阻隔层(4)为高阻隔镀层或者高阻隔涂层，热封层(5)为PE层或PP层或EVA层，阻隔层(4)的厚度的取值范围为400纳米～3微米之间，包括400纳米或3微米，各层之间的结合强度大于2N/15mm，优点是，结构简单，特定方向易撕且定向性较好。

Description

易撕膜
技术领域
本发明涉及易撕包装膜技术领域，具体讲是一种易撕膜。
背景技术
本申请的易撕膜是指将本体易被撕开，且易撕膜为涂层或镀层复合膜。
现有技术的易撕膜，虽然也有一定的易撕性，但是撕开形成的撕裂线取向性较差，若为了获得较好的取向性，则通过设置较为复杂的结构实现，比如授权公告号为CN206475543U所公开的一种直线易撕膜，通过在PET薄膜层内固定连接有若干个平行设置的卡条，所述卡条的轴心平行于PET薄膜层的上下两侧；通过卡条卡接在PET薄膜内，对撕裂线导向，方便了易撕膜的撕开。
本申请旨在通过区别现有技术的新的技术路线，即通过优化复合膜的结构、控制复合膜的层间连接关系等手段，以得到一种易撕膜，具有结构简单，特定方向易撕且定向性较好。
发明内容
本发明所要解决的技术问题是，克服现有技术的缺陷，提供一种易撕膜，结构简单，特定方向易撕且定向性较好。
为解决上述技术问题，本发明提出一种易撕膜，包括依序设置的表层、阻隔层、热封层，易撕膜的总厚度小于或等于120微米，阻隔层4为高阻隔镀层或者高阻隔涂层，热封层5为PE层或PP层或EVA层，阻隔层4的厚度的取值范围为400纳米～3微米之间，包括400纳米或3微米，各层之间的结合强度大于2N/15mm。
采用上述结构后，与现有技术相比，本发明具有以下优点：对易撕膜的总厚度限定，并结合阻隔层的厚度限定及各层之间的连接关系限定，即结合强度限定，能够使得易撕膜易撕且定向性好，结合总厚度的控制，同时结合强度设定降低了脱层，使得该导向作用能够起作用，因此能够使得易撕膜易撕且定向性好，且结构简单。
作为改进，表层或热封层中至少一个设有依序设置的多个凹陷，该多个凹陷间隔或连续排列形成一条易撕线，这样，易撕线由多个凹陷或者连续凹陷构成，因此特定方向易撕且定向性更好。
作为改进，当凹陷设于热封层时，表层设有指示凹陷形成的易撕线的位置的指示线，这样，当用本易撕膜做成袋体时，易撕线将被隐藏，因此上述设置便于用户找到撕的位置。
作为改进，凹陷设于表层时，凹陷的深度小于表层的厚度，凹陷设于热封层时，凹陷的深度小于热封层的厚度，这样，易撕同时还保障了较高阻隔性。
作为改进，表层为PE层、或PET层、或尼龙层、或PP层，这样，作为表层的优选，更利于易撕及定向的性能。
附图说明
图1为本发明易撕膜的主视图。
图2为A-A向剖视放大示意图。
图中所示，1、凹陷，2、虚线，3、表层，4、阻隔层，5、热封层。
具体实施方式
下面对本发明作进一步详细的说明：
本发明易撕膜，包括依序设置的表层3、阻隔层4、热封层5。
易撕膜的厚度小于或等于120微米，阻隔层4为镀铝层或者其他高阻隔涂层，热封层5为PE层，或PP层、或EVA层，阻隔层的厚度的取值范围为400纳米～3微米之间，包括400纳米或3微米，易撕膜的复合强度大于2N/15mm。本例中，铝层通过真空镀铝工艺或者其他镀层工艺后设于表层3，然后复合热封层5得到易撕膜，当然，铝层也可以通过真空镀铝工艺或者其他镀层工艺后设于热封层5，然后复合表层3得到易撕膜，易撕膜的厚度为110微米左右，铝层的厚度的取值范围为500纳米左右，易撕膜的复合强度为2N/15mm。
表层3或热封层5中至少一个设有依序设置的多个凹陷1，该多个凹陷1间隔或连续排列形成一条易撕线2。
凹陷1设于表层3或热封层5，凹陷1设于表层3时，凹陷1的深度小于表层3的厚度，凹陷1设于热封层5时，凹陷1的深度小于热封层5的厚度。本例中，凹陷1设于表层3。
易撕线2可以是曲线、直线，易撕线2可以是虚线或者实线或者虚线、实线混合组合。本例中为间隔排列形成一条虚线，即易撕线2为直线型设置，为虚线，可用激光照射或者机械模切形成。
当然，凹陷1也可以设于热封层5，或者表层3、热封层5均有，当凹陷1仅设于热封层5时，表层3设有指示凹陷1形成的易撕线2的位置的指示线。
表层3为PE层、或PET层、或尼龙层、或OPP层。本例中，表层3为PE层。
以上所述仅是本发明的较佳实施方式，故凡依本发明专利申请范围所述的构造、特征及原理所做的等效变化或修饰，均包括于本发明专利申请范围内。

Claims (5)

1.一种易撕膜，包括依序设置的表层(3)、阻隔层(4)、热封层(5)，其特征在于，易撕膜的总厚度小于或等于120微米，阻隔层(4)为高阻隔镀层或者高阻隔涂层，热封层(5)为PE层或PP层或EVA层，阻隔层(4)的厚度的取值范围为400纳米～3微米之间，包括400纳米或3微米，各层之间的结合强度大于2N/15mm。
2.根据权利要求1所述的易撕膜，其特征在于，表层(3)或热封层(5)中至少一个设有依序设置的多个凹陷(1)，该多个凹陷(1)间隔或连续排列形成一条易撕线(2)。
3.根据权利要求2所述的易撕膜，其特征在于，当凹陷(1)设于热封层(5)时，表层(3)设有指示凹陷(1)形成的易撕线(2)的位置的指示线。
4.根据权利要求2所述的易撕膜，其特征在于，凹陷(1)设于表层(3)时，凹陷(1)的深度小于表层(3)的厚度，凹陷(1)设于热封层(5)时，凹陷(1)的深度小于热封层(5)的厚度。
5.根据权利要求1所述的易撕膜，其特征在于，表层(3)为PE层、或PET层、或尼龙层、或珠光膜层。
CN201911313199.2A 2019-12-18 2019-12-18 易撕膜 Pending CN111038046A (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1556767A (zh) * 2001-01-08 2004-12-22 Ucb 薄膜、包装物及它们的制造方法
CN101065248A (zh) * 2004-11-29 2007-10-31 奥肯包装意大利有限公司 用于包装的多层层叠薄膜
JP2008001406A (ja) * 2006-06-23 2008-01-10 Kyokuto Kobunshi Kk 横易引裂ラミネートフィルム及び横易引裂ラミネート包装袋
CN201989369U (zh) * 2010-12-23 2011-09-28 江苏中金玛泰医药包装有限公司 一种指定位置易撕开型复合膜
CN108688272A (zh) * 2018-07-26 2018-10-23 刘建林 包装袋薄膜及其制造方法以及包装袋
CN211710238U (zh) * 2019-12-18 2020-10-20 浙江易优包装技术有限公司 易撕膜

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1556767A (zh) * 2001-01-08 2004-12-22 Ucb 薄膜、包装物及它们的制造方法
CN101065248A (zh) * 2004-11-29 2007-10-31 奥肯包装意大利有限公司 用于包装的多层层叠薄膜
JP2008001406A (ja) * 2006-06-23 2008-01-10 Kyokuto Kobunshi Kk 横易引裂ラミネートフィルム及び横易引裂ラミネート包装袋
CN201989369U (zh) * 2010-12-23 2011-09-28 江苏中金玛泰医药包装有限公司 一种指定位置易撕开型复合膜
CN108688272A (zh) * 2018-07-26 2018-10-23 刘建林 包装袋薄膜及其制造方法以及包装袋
CN211710238U (zh) * 2019-12-18 2020-10-20 浙江易优包装技术有限公司 易撕膜

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