WO2018113755A1 - 具有灰度标识的塑料片材及其制造方法 - Google Patents
具有灰度标识的塑料片材及其制造方法 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
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- the present invention relates to a plastic sheet having a gray scale marking and to a method of manufacturing the plastic sheet.
- the universal application of the Internet of Things is inseparable from the automatic identification of identification codes (including but not limited to two-dimensional codes or digital codes).
- the identification code represented by the two-dimensional code has the characteristics of large data storage capacity and good confidentiality, and can be better combined with mobile terminals such as smart phones to form a good interaction and user experience.
- QR codes are widely used in the current society. In recent years, people have proposed a variety of programs that use QR codes for commodity anti-counterfeiting, point marketing, product traceability, and anti-smuggling.
- plastic packaging labels are usually used to mark the packaging of bottled drinks or seasonings
- flexible packaging made of plastic film is used to package cigarette packets, boxed instant noodles, and the like.
- the primary technical problem to be solved by the present invention is to provide a plastic sheet having a gray scale.
- Another technical problem to be solved by the present invention is to provide a method of manufacturing the above plastic sheet.
- a plastic sheet comprising at least a substrate and a photon-sensitive ink layer disposed on one or both sides of the substrate, the photon-sensitive ink layer partially or wholly covered a surface of the substrate; a gray scale mark is formed in the photon sensitive ink layer; the gray mark is an image formed by a change in appearance of a portion of the photon active material in the photon sensitive ink layer, the gray mark The surface is smooth and has a grayscale difference from the surrounding area.
- the photon-sensitive ink layer is exposed and forms the gray scale mark.
- the gradation mark is formed in the photon-sensitive ink layer, and the photon-sensitive ink layer is covered by the transparent coat.
- the grayscale identifier is any one or more of a two-dimensional code, a digital code, a letter, and a text.
- the gray scale identifier is one or more of a decorative image, a trademark image or product information.
- the substrate is part of a plastic label body or a plastic flexible package; or the substrate is a partially flat surface of the plastic package body.
- a method of manufacturing the above plastic sheet comprising the steps of: coating a surface of the substrate with a photon sensitive ink, and processing the photon sensitive ink with a laser to make Part of the photonic active material in the photon-sensitive ink undergoes a change in appearance to form a gray scale mark.
- the laser is processed from a side of the substrate coated with photon-sensitive ink; or the laser is processed from a back side of the substrate coated with photon-sensitive ink.
- the method further comprises the step of applying a transparent coating on the surface of the photon-sensitive ink layer.
- the photon sensitive ink is processed by using a laser to form a gray scale mark.
- the plastic sheet provided by the present invention forms a smooth gray scale mark by coating a photonic sensitive ink layer on the surface of the substrate and processing it with a laser having a lower power.
- a laser with a low power can engrave a pattern with better effect, greatly reducing the cost, greatly increasing the engraving speed, and satisfying the online
- the high-speed requirements for production are also good for environmental protection.
- FIG. 1 is a schematic structural view of a plastic sheet provided by the present invention.
- Figure 2 is a cross-sectional view of the portion A-A of Figure 1, and a laser processing direction shown in Figure 1;
- Fig. 3 is a cross-sectional view showing the portion A-A of Fig. 1 and a schematic second of the laser processing direction.
- the plastic sheet 1 provided by the present invention may be part of a plastic label body or a plastic flexible package, or may be a partially flat surface of the plastic package body.
- the plastic sheet described herein, in a broad sense, refers to a plastic material having a certain length and width and a relatively small thickness, including a plastic film commonly used for making plastic flexible packaging, and a plastic sheet which can provide a certain supporting force.
- a gray scale mark is formed in the plastic sheet 1 shown in FIG. 1, and the gray scale mark is an image formed by a change in appearance of a part of the photon active material applied to the photon-sensitive ink layer on the surface of the plastic sheet, and the gray scale is formed.
- the marking surface is smooth and has a grayscale difference from the surrounding area.
- the gray scale identifier may be any one or more of two-dimensional code 3, character code, letter, number, and text, and the corresponding information may be product information such as production date, production batch number 5 or expiration date, or other promotion. information.
- the gray scale logo may also be a logo image 4 or a decorative image or the like.
- the photon-sensitive ink is processed by laser to form a gray scale mark, and the individual design of the product package can also be realized.
- the plastic sheet 1 includes at least a substrate 100 and a photon-sensitive ink layer 101 disposed on the surface of the substrate 100.
- the substrate 100 may be a plastic film for manufacturing a label body or a plastic flexible package, or may be a flat portion of a relatively thick plastic package.
- the photon-sensitive ink layer 101 may entirely cover the surface of the substrate 100, and the photo-sensitive ink layer 101 may partially cover the surface of the substrate 100. An example in which the photon-sensitive ink layer 101 partially covers the surface of the substrate 100 can be seen in Fig.
- the gradation marks 3, 4, and 5 are formed by laser processing in the photon-sensitive ink layer 101 provided on the surface of the substrate 100.
- the photon-sensitive ink layer 101 disposed on the surface of the substrate 100 may be directly exposed (as shown in FIG. 3), or the photo-sensitive ink layer 101 disposed on the surface of the substrate 100 may be covered by other transparent materials. Since the photon active component in the photon-sensitive ink layer is highly sensitive to laser light, when the photon-sensitive ink layer is covered by the light transmissive film, laser processing is not affected.
- the photon-sensitive ink layer 101 disposed on the surface of the substrate 100 is formed by coating a photon-sensitive ink containing a photonic active material on the surface of the substrate 100.
- the photo-sensitive ink layer 101 may cover the substrate in whole or in part according to product requirements.
- the change in appearance is a change in color, such as a change from a transparent or light color to an opaque or darker color.
- the gradation mark referred to in the present application broadly includes various images formed by gradation changes, and does not restrict the color of the formed logo image to be gray, and other colors such as black or may be formed in practice. color.
- the appearance of the photon active component can be changed by using a laser having a lower power, so that the appearance of a part of the photon active material 102 in the photon-sensitive ink layer is changed to form a smooth surface but a gray scale difference from the surrounding area.
- the image and hardly burns, etches or flakes the photon-sensitive ink.
- a CO2 infrared laser or a near-infrared laser with a power of less than 10 W is used to produce a single black or color laser image.
- the above images broadly include decorations (such as logos, pictures or aesthetic markers) or information (such as text or two-dimensional code, such as the two-dimensional code 3 shown in Figure 1).
- a decorative image or a trademark image (such as the trademark image 4 shown in FIG. 1) can be formed by subjecting a part of the photonic active material in the photon-sensitive ink layer to a change in appearance, and the decorative image or the trademark image surface is smooth and There is a grayscale difference from the surrounding area.
- a laser with a low power can engrave a pattern with better effect, greatly reducing the cost and greatly increasing the engraving speed. Meet the high-speed requirements of online production, and also play a good role in environmental protection.
- the gradation mark can be processed and coded after the product is packaged. By setting different gray-scale identification codes for different products, the identification of the products can be formed, and one yard and one yard can be realized to meet the requirements of anti-counterfeiting and anti-smuggling products.
- the present invention also provides a method of producing the above plastic sheet. Specifically, the method includes the steps of: coating a photon-sensitive ink on a surface of the substrate, and processing the photon-sensitive ink with a laser to form a gray scale mark by causing a change in appearance of a portion of the photon active material in the photon-sensitive ink.
- the laser may be processed from the side of the substrate 100 coated with the photon-sensitive ink 101; the laser may also be coated with the photo-sensitive ink 101 from the substrate 100. Processing on the back side. Since the photon-sensitive ink is highly sensitive to the laser, when the gray scale is processed, the photo-sensitive ink layer 101 can be processed using a laser to form a gray scale mark after the product is packaged using the plastic sheet 1.
- the manufacturing method may further include other steps depending on product requirements, for example, may further include a step of coating a surface of the photon-sensitive ink layer with a clear coating; since the photon-sensitive ink is sensitive to laser light, it may be before the transparent coating is applied. Or afterwards, the photon sensitive ink is processed to form a gray scale mark. As another example, it is also possible to include an area where the photon-sensitive ink is provided on the surface of the substrate 100 or to make other product information by ordinary ink in the area where the substrate 100 is not covered by the photon-sensitive ink.
- the plastic sheet with gray mark provided by the present invention is formed by coating a photonic sensitive ink layer on one side or both sides of the substrate, and processing with a laser with a lower power to form a smooth gray surface.
- the gradation mark may be a product information, a trademark image or a decorative image; the gradation mark may also be a product identification code.
- the above plastic sheet only changes the appearance of the photon active component in the photon sensitive ink layer, and does not cause the photon sensitive ink to burn, etch or fall off, so that the plastic sheet and the plastic sheet are made.
- the manufactured label or flexible package has a smooth and aesthetic appearance.
- a laser with a very low power can engrave a pattern with better effects, greatly reducing the cost, greatly increasing the engraving speed, meeting the high-speed requirements of online production, and also playing a good environmental protection role.
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Abstract
一种塑料片材及其制造方法，该塑料片材至少包括基材和设置在基材单侧或双侧表面的光子敏感墨层，光子敏感墨层局部或全部覆盖基材的表面；在光子敏感墨层中形成有灰度标识；灰度标识是由光子敏感墨层中的部分光子活性材料发生外观变化后形成的图像，灰度标识表面平滑且与周围区域具有灰度差异；在制作灰度标识的过程中，使用小功率的激光机改变光子敏感墨层中的光子活性成分的外观，不会使光子敏感墨燃烧、蚀刻或脱落，使得塑料片材及由塑料片材制造的包装具有平滑的外观。
Description
本发明涉及一种具有灰度标识的塑料片材，同时涉及该塑料片材的制造方法。
物联网的普及应用离不开标识码(包括但不限于二维码或数字码等)的自动识别。以二维码为代表的标识码具有数据存储量大、保密性好等特点，能够更好地与智能手机等移动终端相结合，形成很好的互动性和用户体验。二维码在当前社会中被广泛应用。近年来，人们先后提出了多种利用二维码进行商品防伪、积分营销、产品溯源、防窜货的方案。
在快速消费品的包装方面，通常使用塑料标签对瓶装饮料或调味品等的包装进行标示，还会使用塑料薄膜制作的软包装对烟盒、盒装方便面等进行包装。通过在标贴或软包装等的塑料薄膜上印刷或喷涂二维码可以便于消费者对商品的信息及相关的营销活动进行查询。此外，还可以在标贴或软包装上印刷产品批号、生产日期等产品信息。
发明内容
本发明所要解决的首要技术问题在于提供一种具有灰度标识的塑料片材。
本发明所要解决的另一技术问题在于提供一种上述塑料片材的制造方法。
为了实现上述目的，本发明采用下述技术方案：
根据本发明实施例的第一方面，提供一种塑料片材，至少包括基材和设置在所述基材单侧或双侧的光子敏感墨层，所述光子敏感墨层局部或全部覆盖所述基材的表面；在所述光子敏感墨层中形成有灰度标识；所述灰度标识是由光子敏感墨层中的部分光子活性材料发生外观变化后形成的图像，所述灰度标识表面平滑且与周围区域具有灰度差异。
其中较优地，所述光子敏感墨层裸露并形成所述灰度标识。
或者，其中较优地，所述光子敏感墨层中形成有所述灰度标识，并且所述光子敏感墨层被透明涂层覆盖。
其中较优地，所述灰度标识是二维码、数字码、字母、文字中的任意一种或多种。
其中较优地，所述灰度标识是装饰图像、商标图像或产品信息中的一种或多种。
其中较优地，所述基材是塑料标签本体或塑料软包装中的一部分；或者，所述基材是塑料包装本体的部分平整表面。
根据本发明实施例的第二方面，提供一种上述塑料片材的制造方法，包括如下步骤：在所述基材的表面涂覆光子敏感墨，并用激光对所述光子敏感墨进行加工，使光子敏感墨中的部分光子活性材料发生外观变化后形成灰度标识。
其中较优地，所述激光从所述基材涂覆有光子敏感墨的一侧进行加工；或者，所述激光从所述基材涂覆有光子敏感墨的背侧进行加工。
其中较优地，还包括在所述光子敏感墨层表面涂覆透明涂层的步骤。
其中较优地，在使用所述塑料片材对产品进行封装后，再使用激光对光子敏感墨进行加工形成灰度标识。
本发明提供的塑料片材，通过在基材表面涂覆光子敏感墨层，并使用功率较小的激光进行加工，形成表面平滑的灰度标识。在制作灰度标识的过程中，仅改变光子敏感墨层中的光子活性成分的外观，并不会使光子敏感墨燃烧、蚀刻或脱落，所以使得塑料片材具有平滑美观的外观。并且，相对于使用普通油墨印刷或喷涂制作信息的现有工艺，采用光子敏感墨后，使用很小功率的激光机即可雕刻更佳效果的图案，大幅降低成本，大幅提高雕刻速度，满足在线生产的高速要求，同时也很好的起到环保作用。
图1是本发明提供的塑料片材的结构示意图；
图2是图1中A-A部的剖视示意图及激光加工方向示意一；
图3是图1中A-A部的剖视示意图及激光加工方向示意二。
下面结合附图和具体实施例对本发明的技术内容做进一步的详细说明。
本发明提供的塑料片材1可以是塑料标签本体或塑料软包装中的一部分，还可以是塑料包装本体的部分平整表面。本文中所述塑料片材，在广义上是指具有一定长度和宽度而厚度相对较小的塑料材料，包括常用于制作塑料软包装的塑料薄膜，也包括可以提供一定支撑力的塑料薄片。在图1所示的塑料片材1中形成有灰度标识，灰度标识是由涂覆于塑料片材表面的光子敏感墨层中的部分光子活性材料发生外观变化后形成的图像，灰度标识表面平滑且与周围区域具有灰度差异。灰度标识可以是二维码3、字符码、字母、数字、文字中的任意一种或多种，其所对应的信息可以是诸如生产日期、生产批号5或有效期等商品信息或其他的促销信息。灰度标识还可以是商标图像4或装饰图像等。通过激光对光子敏感墨进行加工形成灰度标识，还可以实现产品包装的个性化设计。
图2是以图1中二维码3所在的区域为例对塑料片材1的结构进行的图示，其余设置有灰度标识的区域的结构与之相同。如图2所示，塑料片材1至少包括基材100和设置在基材100表面的光子敏感墨层101。其中，基材100可以是用于制造标签本体或塑料软包装的塑料薄膜，也可以是相对较厚的塑料包装的平整部分。光子敏感墨层101可以全部覆盖基材100的表面，光子敏感墨层101也可以局部覆盖基材100的表面。光子敏感墨层101局部覆盖基材100表面的示例可以参见图1，在图1中，塑料片材1的表面形成有覆盖有光子敏感墨的局部区域2。其中，设置在基材100表面的光子敏感墨层101中通过激光加工形成有灰度标识3、4和5。设置在基材100表面的光子敏感墨层101可以直接裸露(如图3所示)，或者，设置在基材100表面的光子敏感墨层101也可以被其他透明材料覆盖。由于光子敏感墨层中的光子活性成分对激光高度敏感，当光子敏感墨层被透光性的薄膜覆盖时，并不影响激光加工。
设置在基材100表面的光子敏感墨层101是将含有光子活性材料的光子敏感墨涂覆在基材100的表面后形成的，根据产品需要，光子敏感墨层101可以全部或部分覆盖基材100的表面。由于光子敏感墨 层101中包含对激光较为敏感的光子活性材料，当激光照到包括光子活性成分的光子敏感墨层101时，其中的光子活性成分会以视觉可察觉的方式发生变化，从而导致光子敏感墨发生外观上的改变。优选地，外观上的改变是颜色上的改变，例如从透明或浅颜色改变为不透明或较深的颜色。换句话说，本申请所引用的灰度标识广义上包括各种发生了灰度变化而形成的图像，并不限制形成的标识图像的颜色为灰色，实际中可以形成其他的颜色，例如黑色或彩色。
在本发明中，使用功率较小的激光即可改变光子活性成分的外观，从而使光子敏感墨层中的部分光子活性材料102的外观发生变化，形成表面平滑但与周围区域存在灰度差异的图像，并且几乎不会使光子敏感墨燃烧、蚀刻或剥落。例如使用功率小于10W的CO2红外激光或近红外激光照射，以产生单黑色或彩色的激光图像。上述图像广泛地包含装饰(诸如标志、图片或美学标记)或信息(诸如文本或二维编码，例如图1所示的二维码3)。在金属片材的正面还可以通过使光子敏感墨层中的部分光子活性材料发生外观变化后形成装饰图像或商标图像(如图1所示的商标图像4)，装饰图像或商标图像表面平滑且与周围区域具有灰度差异。
相对于使用普通油墨印刷或喷涂制作商品信息或标识码的现有工艺，采用光子敏感墨后，使用很小功率的激光机即可雕刻更佳效果的图案，大幅降低成本，大幅提高雕刻速度，满足在线生产的高速要求，同时也很好的起到环保作用。而且，上述灰度标识可以在对产品封装之后再进行加工赋码。通过对不同的产品设置不同的灰度标识码，可以构成产品的标识，还可以实现一物一码，满足对产品防伪及防窜货等需求。
本发明同时提供了上述塑料片材的制造方法。具体来说，包括如下的步骤：在基材的表面涂覆光子敏感墨，并用激光对光子敏感墨进行加工，使光子敏感墨中的部分光子活性材料发生外观变化后形成灰度标识。
其中，如图2和图3中所示的加工方向，激光可以从基材100涂覆有光子敏感墨101的一侧进行加工；激光也可以从与基材100涂覆有光子敏感墨101的背侧进行加工。由于光子敏感墨对激光的高度敏 感，在加工灰度标识时，可以在使用塑料片材1对产品进行封装后，再使用激光对光子敏感墨层101进行加工形成灰度标识。
该制造方法根据产品需要还可以包括其他的步骤，例如，还可以包括在光子敏感墨层表面涂覆透明涂层的步骤；由于光子敏感墨对激光较为敏感，所以可以在涂覆透明涂层之前或之后对光子敏感墨进行加工形成灰度标识。又如，还可以包括在基材100表面设置有光子敏感墨的区域或者在基材100未被光子敏感墨覆盖的区域通过普通油墨制作其他产品信息。
可以理解，上述实施例中以在基材单面涂覆光子敏感墨形成灰度标识为例进行了说明。在实际使用中，还可以在基材的两面分别涂覆光子敏感墨，分别制作灰度标识。
综上所述，本发明所提供的具有灰度标识的塑料片材，通过在基材单侧或双侧涂覆光子敏感墨层，并使用功率较小的激光进行加工，形成表面平滑的灰度标识；灰度标识可以是产品信息、商标图像或装饰图像；灰度标识还可以是产品标识码。上述塑料片材在制作灰度标识的过程中，仅改变光子敏感墨层中的光子活性成分的外观，并不会使光子敏感墨燃烧、蚀刻或脱落，所以使得塑料片材及由塑料片材制造的标签或软包装具有平滑美观的外观。并且，采用光子敏感墨后，使用很小功率的激光机即可雕刻更佳效果的图案，大幅降低成本，大幅提高雕刻速度，满足在线生产的高速要求，同时也很好的起到环保作用。
以上对本发明所提供的具有灰度标识的塑料片材及其制造方法进行了详细的说明。对本领域的一般技术人员而言，在不背离本发明实质精神的前提下对它所做的任何显而易见的改动，都将构成对本发明专利权的侵犯，将承担相应的法律责任。
Claims (10)
- 一种塑料片材，其特征在于：至少包括基材和设置在所述基材单侧或双侧的光子敏感墨层，所述光子敏感墨层局部或全部覆盖所述基材的表面；在所述光子敏感墨层中形成有灰度标识；所述灰度标识是由光子敏感墨层中的部分光子活性材料发生外观变化后形成的图像，所述灰度标识表面平滑且与周围区域具有灰度差异。
- 如权利要求1所述的塑料片材，其特征在于：所述光子敏感墨层裸露并形成所述灰度标识。
- 如权利要求1所述的塑料片材，其特征在于：所述光子敏感墨层中形成有所述灰度标识，并且所述光子敏感墨层被透明涂层覆盖。
- 如权利要求1所述的塑料片材，其特征在于：所述灰度标识是二维码、字符码、字母、文字中的任意一种或多种。
- 如权利要求1所述的塑料片材，其特征在于：所述灰度标识是装饰图像、商标图像或产品信息中的一种或多种。
- 如权利要求1所述的塑料片材，其特征在于：所述基材是标贴本体或塑料软包装中的一部分；或者，所述基材是塑料包装本体的部分平整表面。
- 一种如权利要求1所述的塑料片材的制造方法，其特征在于至少包括如下步骤：在所述基材的表面涂覆光子敏感墨，并用激光对所述光子敏感墨进行加工，使光子敏感墨中的部分光子活性材料发生外观变化后形成灰度标识。
- 如权利要求7所述的制造方法，其特征在于：所述激光从所述基材涂覆有光子敏感墨的一侧进行加工；或者，所述激光从所述基材涂覆有光子敏感墨的背侧进行加工。
- 如权利要求7所述的制造方法，其特征在于还包括在所述光子敏感墨层表面涂覆透明涂层的步骤。
- 如权利要求7所述的制造方法，其特征在于：在使用所述塑料片材对产品进行封装后，再使用激光对光子敏感墨进行加工形成灰度标识。
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| CN201611192605.0A CN107437369A (zh) | 2016-12-21 | 2016-12-21 | 具有灰度标识的塑料片材及其制造方法 |
| CN201611192605.0 | 2016-12-21 | ||
| CN201621410218.5U CN206558123U (zh) | 2016-12-21 | 2016-12-21 | 具有灰度标识的塑料片材 |
| CN201621410218.5 | 2016-12-21 |
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| CN206558123U (zh) * | 2016-12-21 | 2017-10-13 | 信码互通（北京）科技有限公司 | 具有灰度标识的塑料片材 |
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