WO2010088848A1 - 一种双面胶带及其生产方法 - Google Patents

一种双面胶带及其生产方法 Download PDF

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Publication number
WO2010088848A1
WO2010088848A1 PCT/CN2010/070339 CN2010070339W WO2010088848A1 WO 2010088848 A1 WO2010088848 A1 WO 2010088848A1 CN 2010070339 W CN2010070339 W CN 2010070339W WO 2010088848 A1 WO2010088848 A1 WO 2010088848A1
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Prior art keywords
layer
double
sided tape
release
release paper
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PCT/CN2010/070339
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English (en)
French (fr)
Inventor
屠尖兵
Original Assignee
Tu Jianbing
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Publication of WO2010088848A1 publication Critical patent/WO2010088848A1/zh

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • C09J7/403—Adhesives in the form of films or foils characterised by release liners characterised by the structure of the release feature
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2483/00—Presence of polysiloxane
    • C09J2483/005—Presence of polysiloxane in the release coating

Definitions

  • Double-sided tape and production method thereof Double-sided tape and production method thereof
  • the present invention relates to a double-sided tape in a stationery article, and more particularly to a double-sided tape which is used for mounting a roll-shaped core in a coater casing and a method of producing the same. Background technique
  • a double-sided tape comprising a release paper coated on one side of a release paper layer and then wound into a roll-shaped core for installation in an applicator case, Because of its ease of use, it is widely used for the bonding of paper or objects.
  • the adhesive layer of the tape of the existing product is continuously and uniformly coated on the release paper layer during production.
  • the adhesive layer of the adhesive tape of the tape is The action of the head of the cassette on the surface of the paper or object is applied to the movement of the paper or the object, and is transferred from the connection with the release paper layer to the surface of the paper or the object.
  • the head of the cassette is lifted to the surface.
  • the rubber film is broken, but because the adhesive film has the extensibility, it is easy to produce drag and draw during the breaking process, which leads to poor positioning of the glue position and even contaminates the surface of the paper or object to be attached. .
  • a double-sided tape comprising a base layer and The upper and lower surfaces are coated with a release paper layer composed of a top anti-adhesion layer and a lower anti-adhesion layer, and an adhesive layer is coated on the upper surface of the release paper layer, wherein:
  • the adhesive layer is composed of pressure-sensitive adhesive dots of the same thickness and equidistant distribution.
  • the double-sided adhesive tape of the invention patent application is characterized in that the adhesive layer originally coated on the release paper is improved by a continuous strip-like adhesive layer structure, and is designed as an equidistantly distributed dot-like adhesive layer structure, between the point-to-point adhesive layers. Maintain a certain gap, thus solving the dragging phenomenon of the existing products.
  • the product of the patent application technology also has certain deficiencies. Since the adhesive layer is designed as a dot shape, since the dot-shaped adhesive layer has a large gap between the adhesive film units, it is applied to the adhered paper in actual use. Or the area occupied by the adhesive on the unit area is reduced, resulting in a decrease in the bonding strength between the bonding materials than in the double-sided tape using the existing product, and it is not possible to apply a case where the bonding strength is high. .
  • Another Chinese utility model patent ZL200520113516. 3 discloses a double-sided tape, the structure comprising: a diaphragm, which is a discontinuous mechanism, and a spacing is provided at a certain length; two gel layers are respectively disposed on the diaphragm a release sheet; a release paper bonded to the glue layer on the upper surface of the film, the release paper being located above the film, and the release paper being a continuous structure, the release paper having a length greater than The length of the diaphragm; wherein the separation paper and the diaphragm spacing are provided with a breaking line.
  • the double-sided adhesive tape can be used to facilitate the tearing of the release paper from the diaphragm by using the non-adhesive area generated by the distance between the diaphragms, and the separation line on the release paper and the diaphragm can easily cut the double-sided tape.
  • the double-sided tape is known to be used, it is necessary to cut the tape into a suitable length by scissors or a blade.
  • the double-sided tape of the patented technology is currently rolled up to a certain width and size, and the product of the roll-shaped core is installed in the applicator case, and the product is commercially available, but the product of the patented technology is the same.
  • the adhesive layer is composed of a film layer (commercially available as paper) and two layers of two gel layers, which solves the dragging phenomenon when installed in a tape cassette.
  • the disadvantages are: The structure is relatively complicated, resulting in complicated production process, which consumes a lot of man-hours, energy, and materials, resulting in higher production costs, and the thickness of the tape is thick due to the large number of tape layers, and the same size applicator box is used. The length of the tape that can be loaded is much smaller than the aforementioned double-sided tape, which also increases the packaging cost of the product. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a structure with simple structure and low production cost, and can be used for installing a roll-shaped core in an applicator case, and using the adhesive in use.
  • a double-sided adhesive tape comprising a release paper composed of an upper release layer and a lower release layer coated and joined by a base layer and upper and lower surfaces thereof The layer is coated with an adhesive layer on the upper surface of the release paper layer, wherein: the adhesive layer is composed of independent pressure-sensitive adhesive film units of the same thickness and continuously evenly arranged. 5 ⁇ 3 ⁇ The width of the gap between each adjacent element is 0. 15 ⁇ 3mm.
  • the method for producing the double-sided tape of the present invention a plastic film or a fiber paper tape as a base layer is mounted on a coater, and a silicone anti-sticking agent is coated on the upper and lower surfaces thereof by a coater, and is coated thereon.
  • the coating amount of the surface is smaller than the coating amount of the lower surface, and the upper and lower release layers which are connected to the base layer are used as a release paper layer; then, the surface of the release layer on the release paper is coated with a coating machine
  • An independent hot-melt pressure-sensitive adhesive unit having the same thickness and uniform uniform arrangement is applied to form an adhesive layer which is connected with the release paper, and is wound up by a coating machine to form a double-sided tape roll.
  • the double-sided tape reel is placed on a slitter to be slit into a tape of a desired width, and then wound into a roll-shaped core product of a required size by a tape winding device on the slitter.
  • the adhesive layer of the double-sided tape is continuously and uniformly arranged in the form of independent units. Coated on the surface of the release paper of the tape, there is a certain distance between adjacent edges of each pressure-sensitive adhesive film unit. Therefore, when the tape is made into a core to be mounted on the applicator case, the tape cassette is used during use. When the head is lifted off the surface of the paper or the object, the adhesive film can be easily cut, which overcomes the dragging phenomenon of the existing double-sided tape which is easy to be produced during the use of the cutting process, and ensures the adhesive film. The coating is neat and clean.
  • the double-sided tape of the present invention overcomes the gap between the glued film units of the point adhesive layer. More, the area of the adhesive applied to the area of the adhered paper or the object unit in actual use is reduced, and the bonding strength between the adhesives is lowered.
  • the adhesive layer of the double-sided tape can overcome the drawing phenomenon of the dragging rubber in use, but the adhesive tape layer of the present invention is single.
  • the composition of the laminated sensitive adhesive film has the advantages of simple production and coating process, low labor, energy and materials, low production cost and good use effect.
  • FIG. 1 is a schematic cross-sectional structural view of a double-sided tape of the present invention
  • Figure 2 is a plan view of Figure 1;
  • Figure 3 is a perspective view of the double-sided tape of the present invention made into a roll-shaped belt core
  • Figure 4 is a schematic view showing the state of use of the existing double-sided tape
  • Figure 5 is an enlarged view of the portion C of Figure 4.
  • Figure 6 is a schematic view showing the state of use of the double-sided tape of the present invention.
  • Figure 7 is an enlarged view of the portion D of Figure 6. Detailed ways
  • the double-sided tape of the present invention comprises a release paper layer 1 comprising a base layer 11 and an upper release layer 12 and a lower release layer 13 coated on the upper and lower surfaces thereof.
  • Coating the adhesive layer 2 on the upper surface of the release paper layer 1 is a prior art, and the distinguishing feature is that: the upper surface of the release paper layer 1 is coated with the adhesive layer 2 having the same thickness
  • the pressure-sensitive adhesive film unit is selected from the range of 0. 01 0. lmm, the width b is selected within the range of 0. 5 8 , and the pressure-sensitive adhesive film is selected.
  • the spacing a between adjacent side edges is selected in the range of 0.15 3 mm.
  • the thickness of the pressure-sensitive adhesive film unit is 0. 03mm, the width of each unit b is 2
  • the singularity of the thickness of the film may be between 0. 012 0. 2m m ;
  • the materials of the upper and lower anti-adhesion layers 12 and 13 are silicone anti-adhesive agents, and the finished silicone oil produced by the chemical raw material manufacturer is prepared by dissolving the commercially available gasoline; the adhesive layer 2 is selected from commercially available solid heat.
  • the melt pressure sensitive adhesive is prepared by dissolving the ethyl acetate solution.
  • the method for producing the double-sided tape of the present invention a plastic film or a fiber paper tape as a base layer is mounted on a coater, and a silicone anti-sticking agent is coated on the upper and lower surfaces thereof by a coater, and is coated thereon.
  • the coating amount of the surface is smaller than the coating amount of the lower surface, and the upper and lower release layers which are connected to the base layer are used as a release paper layer; then, the surface of the release layer on the release paper is coated with a coating machine
  • An independent hot-melt pressure-sensitive adhesive unit having the same thickness and uniform uniform arrangement is applied to form an adhesive layer which is connected with the release paper, and is wound up by a coating machine to form a double-sided tape roll.
  • the double-sided tape reel is placed on a slitting machine and cut into tapes of a required width, and then wound into a reel-shaped core product of a required size by a take-up device on the slitting machine, as shown in FIG.
  • reference numeral 3 is a core body
  • reference numeral 4 is a core mounting skeleton.
  • the finished product with the core is installed into the applicator case to form a packaged double-sided tape which can be sold.
  • the overall structure of the applicator tape cassette is basically the same as the tape cassette structure of the stationery correction tape used daily, which is a prior art. .
  • the above is the structural form of the double-sided tape made of the double-sided tape which is installed in the applicator tape cassette, and is actually produced.
  • the product can also be used in the form of a sheet, as long as the upper surface of the adhesive layer of the double-sided tape of the above embodiment is further combined with a release paper, and the lower surface of the release paper layer 1 can be prevented from being coated.
  • Adhesive layer 13 Therefore, all structural changes that come within the scope of the present invention are intended to be included in the scope of the invention.

Description

一种双面胶带及其生产方法
技术领域
本发明涉及文具用品中的双面胶带， 特别是指一种制成卷筒形带芯安装于涂覆器盒体中 使用的双面胶带及其生产方法。 背景技术
目前， 一种包括由一离型纸， 在离型纸层一面涂覆连接有一粘胶层， 然后被卷绕制成卷 筒形带芯安装于涂覆器盒体中使用的双面胶带， 由于其使用方便， 被人们广泛地用于纸张或 物体的粘接。 但是， 现有产品其胶带的粘胶层在生产时是连续均匀地涂布在离型纸层上的， 在实际使用中， 见图 4〜图 5所示， 胶带的粘胶层胶膜随着带盒头部在纸张或物体表面上施 压后移运动的作用， 脱离同离型纸层的连接而转移至纸张或物体表面， 在达到预定位置时， 将带盒头部上提使粘胶层胶膜拉断， 但由于粘胶层胶膜具延伸性， 在拉断过程中易产生拖胶 拉丝现象， 进而造成涂胶位置定位不佳， 甚至污染了欲贴附的纸张或物体表面。
针对上述双面胶带存在的使用缺点， 本人的在先专利申请， 中国发明专利申请号 200810200920. 2, 对现有产品进行了改进， 其结构是： 一种双面胶带， 包括由带基体层和其 上、 下两个表面涂覆连接的上防粘层和下防粘层组成的离型纸层， 在离型纸层的上表面涂覆 连接有粘胶层， 其特征在于： 所述的粘胶层由厚度相同， 等距分布排列的压敏胶点所组成。 该发明专利申请的双面胶带是将原涂布于离型纸上的粘胶层由连续相连的条状胶层结构改进 设计为等距分布排列的点状胶层结构， 点对点胶层之间保持有一定的间隙， 从而解决了现有 产品存在的拖胶拉丝现象。 但该专利申请技术的产品也存在一定的不足， 因粘胶层设计为点 状后， 由于点状粘胶层胶膜单元相互之间存在间隙较多， 在实际使用中涂覆到被粘纸张或物 体单位面积上的粘胶所占面积减少， 导致粘接物之间的粘接强度比使用现有产品双面胶带的 粘接强度有所降低， 无法适用对粘接强度要求较高的场合。
另中国实用新型专利 ZL200520113516. 3公开了一种双面胶带， 其结构包括： 一膜片， 呈 断续机构， 每隔一定长度设有一间距； 两胶质层， 分别设于该膜片的上、 下表面； 一离型纸， 与所述膜片上表面的该胶质层粘合， 该离型纸位于膜片上方， 且该离型纸为连续结构， 所述 离型纸的长度大于所述膜片的长度； 其中， 所属离型纸与膜片间距对应处设有分断线。 该双 面胶带使用中膜片间距所产生的无粘胶区域可方便离型纸从膜片上撕开， 且离型纸与膜片上 的分断线可使双面胶带可轻易裁断， 解决了公知双面胶带使用时， 需通过剪刀或刀片才可将 胶带裁切成适合的长度带来的不便。该专利技术的双面胶带， 目前也有被卷绕制成一定宽度、 大小的卷筒形带芯安装于涂覆器盒体中使用的产品推出在市场销售， 但该专利技术的产品同 上面所述技术的双面胶带相比， 其粘胶层由一膜片层 （市售为纸质） 和两胶质层三层组成， 安装在带盒中使用时虽解决了拖胶拉丝现象， 但其缺点是： 结构相对复杂， 致使生产工艺流 程繁复， 所耗工时、 能量、 材料多， 导致生产成本较高， 而且由于胶带层数多导致胶带厚度 较厚， 使用同样大小涂覆器盒体其可装胶带的长度比前述双面胶带要小很多， 从而也增加了 产品包装成本。 发明内容
本发明所要解决的技术问题是针对现有技术存在的不足， 而提供一种结构简单， 生产成 本低， 可制成卷筒形带芯安装于涂覆器盒体中使用， 使用时在粘胶膜拉裁断过程中不产生拖 胶拉丝现象的双面胶带及生产该种双面胶带方法。
本发明解决上述技术问题所采用的技术方案为： 一种双面胶带， 包括由带基体层和其上、 下两个表面涂覆连接的上防粘层和下防粘层组成的离型纸层， 在离型纸层的上表面涂覆连接 有粘胶层， 其特征在于： 所述的粘胶层由厚度相同， 连续均布排列的独立压敏胶膜单元所组 成。 所述的压敏胶膜单元的宽度为 0. 5〜8mm， 每一相邻单元边之间的间距为 0. 15〜3mm。
本发明双面胶带的生产方法： 将作为带基体层的塑料薄膜或纤维纸带装于涂布机上， 在 其上、 下表面经涂布机涂覆上有机硅防粘剂， 并使其上表面的涂布量小于下表面的涂布量， 形成同带基体层相连接的上、 下防粘层作为离型纸层使用； 然后， 在离型纸的上防粘层表面 经涂布机涂覆上厚度相同连续均布排列的独立热熔压敏胶单元，形成同离型纸连接的粘胶层， 经涂布机收料辊卷收制成双面胶带卷筒。 然后， 将双面胶带卷筒置于分切机上分切成要求宽 度的胶带， 再经分切机上的卷带装置卷绕成要求规格大小的卷筒形带芯成品。
与现有技术相比， 本发明的优点在于：
1、与双面胶带的粘胶层由连续均匀地涂布在离型纸层上的双面胶带相比， 由于本发明的 双面胶带粘胶层胶膜是以独立单元形式连续均布排列涂覆在胶带离型纸表面上的， 每个压敏 胶膜单元相邻边之间存在一定间距， 所以， 当胶带制成带芯安装到涂覆器盒体上， 使用过程 中当带盒头部上提离开纸张或物体表面时， 便可轻易地将粘胶层胶膜拉裁断， 克服了现有双 面胶带在使用拉裁断过程中易产生的拖胶拉丝现象， 保证了粘胶膜涂覆的工整和清洁。
2、与双面胶带的粘胶层为点状结构形式涂布在离型纸上的双面胶带相比， 本发明的双面 胶带克服了点状粘胶层胶膜单元相互之间存在间隙较多， 所导致的在实际使用中涂覆到被粘 纸张或物体单元面积上的粘胶面积减少， 而引起的粘接物之间粘接强度降低的毛病。
3、与双面胶带的粘胶层由一膜片层和两胶质层三层组成的双面胶带相比， 虽然使用中都 可克服拖胶拉丝现象， 但本发明胶带粘胶层由单层压敏胶膜组成， 具生产涂覆工艺简单， 所 耗工时、 能量、 材料少， 生产成本低， 使用效果好的特点。 附图说明
图 1为本发明双面胶带的横截面层结构示意图；
图 2为图 1的俯视图；
图 3为本发明双面胶带制成卷筒形带芯的立体图；
图 4为现有双面胶带的使用状态示意图；
图 5为图 4 C部的放大图；
图 6为本发明双面胶带的使用状态示意图；
图 7为图 6 D部的放大图。 具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
参见图 1〜图 2所示， 本发明双面胶带包括带基体层 11和其上、 下两个表面涂覆连接的 上防粘层 12和下防粘层 13组成的离型纸层 1， 在离型纸层 1的上表面涂覆连接有粘胶层 2 以上为现有技术， 其区别特征在于： 所述的离型纸层 1的上表面涂覆连接的粘胶层 2由厚度 相同、 连续均布排列的独立压敏胶膜单元所组成， 压敏胶膜单元的厚度在 0. 01 0. lmm范围 内选择，其宽度 b在 0. 5 8 范围内选择，压敏胶膜每一相邻单元边之间的间距 a在 0. 15 3mm范围内选择。 本实施例压敏胶膜单元的厚度为 0. 03mm, 每一单元的宽度 b为 2 每一 相邻单元边之间的间距 a为 0. 25mm
上述所述的双面胶带的带基体层 11的材料可为 PET、 PP、 PC、 PE等塑料薄膜或纤维纸带， 根据产品需要其厚度可在 0. 012 0. 2mm之间选择； 所述的上、 下防粘层 12、 13的材料为有 机硅防粘剂， 选用化工原料厂家生产的制成品硅油用市售汽油溶解制成； 所述的粘胶层 2选 用市售固体热熔压敏胶用醋酸乙脂溶液溶解制成。
本发明双面胶带的生产方法： 将作为带基体层的塑料薄膜或纤维纸带装于涂布机上， 在 其上、 下表面经涂布机涂覆上有机硅防粘剂， 并使其上表面的涂布量小于下表面的涂布量， 形成同带基体层相连接的上、 下防粘层作为离型纸层使用； 然后， 在离型纸的上防粘层表面 经涂布机涂覆上厚度相同连续均布排列的独立热熔压敏胶单元，形成同离型纸连接的粘胶层， 经涂布机收料辊卷收制成双面胶带卷筒。 然后， 将双面胶带卷筒置于分切机上分切成要求宽 度的胶带， 再经分切机上的卷带装置卷绕成要求规格大小的卷筒形带芯成品， 见图 3所示， 图 3中标示 3为带芯体， 标示 4为带芯安装骨架。 将带芯成品安装到涂覆器盒体中即制成可 出售的盒装双面胶带，涂覆器带盒的整体结构同日常使用的文具修正带的带盒结构基本相同， 为现有技术。
以上为本发明双面胶带制成卷筒形带芯安装于涂覆器带盒中使用的结构形式， 在实际产 品中也可制成片状使用， 只要在上述实施例的双面胶带粘胶层上表面再复合连接上一层离型 纸即可， 而且， 离型纸层 1的下表面可不用涂防粘层 13。 所以， 凡依本发明说明书或图示内 容披露的设计构思所为的结构等同变化， 都应为本发明的保护范围所涵盖。

Claims

权 利 要 求 书
1、 一种双面胶带， 包括由带基体层（11)和其上、 下两个表面涂覆连接的上防粘层（12) 和下防粘层（13)组成的离型纸层（1)， 在离型纸层（1)的上表面涂覆连接有粘胶层 (2)， 其特征 在于： 所述的粘胶层 (2)由厚度相同， 连续均布排列的独立压敏胶膜单元所组成。
2、 根据权利要求 1所述的双面胶带， 其特征在于： 所述的压敏胶膜单元的宽度为 0. 5〜 8mm, 每一相邻单元边之间的间距为 0. 15〜3mm。
3、 一种双面胶带的生产方法： 将作为带基体层的塑料薄膜或纤维纸带装于涂布机上， 在 其上、 下表面经涂布机涂覆上有机硅防粘剂， 并使其上表面的涂布量小于下表面的涂布量， 形成同带基体层相连接的上、 下防粘层作为离型纸层使用； 然后， 在离型纸层的上防粘层表 面经涂布机涂覆上厚度相同连续均布排列的独立热熔压敏胶单元， 形成同离型纸连接的粘胶 层， 经涂布机收料辊卷收制成双面胶带卷筒； 然后， 将双面胶带卷筒置于分切机上分切成要 求宽度的胶带， 再经分切机上的卷带装置卷绕成要求规格大小的卷筒形带芯成品。
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