JP2011186021A - Linerless label and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a linerless label having such physical properties that it can be suitably used as a decorative label for standard representation, which is to be stuck to a rubber vehicle tire immediately after production, and a method for producing the linerless label. <P>SOLUTION: The linerless label has a front surface printed with labels and is provided with: an adhesive layer 4 on a rear surface side of a label base material 1 wherein perforations 3 for allowing separation into cut sheet labels 1a are formed; and a release layer 5 on a front surface side of the label base material 1. Frame-like glue-less margins 4a are provided on the rear surface of the label base material 1 along circumferential edges of the cut sheet labels 1a. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a label without a mount (release paper), that is, a so-called linerless label, and is particularly suitable for a linerless label having a characteristic that can be suitably used as a decorative label for indicating a standard applied to a vehicle tire immediately after manufacture. The present invention relates to a label and a manufacturing method thereof.

  Usually, a label or a sticker is affixed to a mount called a liner and peeled off from the mount for use. On the other hand, there are labels that do not use a mount. This label is glued on the back side, and a release material is applied to the entire front side, and the label is wound in a roll shape so that it can be easily peeled off.This is called a linerless label. It is widespread as an environmentally friendly label (for example, see Patent Document 1). In other words, compared to a label with a mount, the user can save the trouble of peeling from the mount, increase the work efficiency of attaching to the article, reduce the bulk of the mount, and reduce the storage cost and transport cost, This eliminates the need to dispose of the mount and contributes to reducing the environmental burden.

  A general linerless label is printed in the form of a product name, manufacturer, seller, raw material name, etc. on the surface of a belt-like substrate of paper or plastic film, and adhesive is applied to the entire area on the back side to form a roll. It is wound on. Further, the label surface side is coated with silicon resin or the like so that the adhesive does not adhere to the printing surface. In addition, as described in Patent Document 2, a part of the label is peeled off along the perforation for peeling, and it can be used as a stub for confirmation of receipt, etc. An information entry part and a release agent treatment part are provided, and an adhesive application part is provided in the area corresponding to the release agent treatment part on the back surface of the substrate to form a roll, and the information entry part and the release agent treatment are provided. A sticking sheet (see Patent Document 3) in which perforation for cutting is applied along the boundary with the part has been proposed.

  Moreover, as described in Patent Document 4, a dry paste layer that is thermally activated on the back surface of the label substrate and a thermosensitive coloring layer on the surface of the label substrate, or a label base that is printed on the surface. Liner-less label by applying adhesive part on the back side of the material, by forming the adhesive part and adhesive-free part without adhesive on the back side of the material. Reference 5). A coating with a release coating that can be written with a pen or a felt pen (see Patent Document 6), and a structure that is difficult to peel off even when a label is overlaid to prevent misuse due to replacement (patent) Reference 7). In addition, the cutting means for cutting the roll-wrapped labels one by one into a predetermined length and the label cut by the cutting means are received by a label holding body coated with an adhesive, and bonded to the back surface of the label Relations such as a roll labeler (see Patent Document 8) provided with a gluing and conveying means for adhering the agent, and a sticking means for receiving a label from the gluing and conveying means and holding the surface side thereof and affixing it to an article such as a container. Various techniques have also been proposed.

Japanese Utility Model Publication No.59-84565 JP 2004-333740 A Japanese Patent No. 3401993 Japanese Patent No. 4346918 JP 2007-171776 A Special table 2001-511203 gazette JP 2003-186399 A Japanese Patent No. 3067413

  By the way, silicon as a mold release agent used at the time of vulcanization molding with a mold remains on the surface of the rubber vehicle tire immediately after molding. Further, the tire surface has a groove called a tread pattern, and is a rough surface having irregularities on which many fine whisker-like projections called “spoo” generated during vulcanization molding exist. Therefore, conventionally, a high-viscosity and highly adhesive rubber-based adhesive is used for the label to be affixed thereto, and the label once affixed has a characteristic that it is difficult to peel off. Needless to say, the present invention also has the above-mentioned characteristics of conventional labels with a liner, and in particular, has characteristics that can be suitably used as a standard display decorative label to be attached to a rubber vehicle tire immediately after molding. It is an object of the present invention to provide a linerless label and a method for manufacturing the same.

  In order to achieve the above object, the present invention includes a label printing on the surface, an adhesive layer on the back side of the label base material that can be separated into single sheets, and a release layer on the surface side of the label base material. The first feature of the present invention is a linerless label having a frame-like non-glue portion provided on the back surface of the label base material along the peripheral edge of the cut sheet. A second feature of the linerless label is that the label substrate is wound in a roll shape with the adhesive layer inside. A third feature is that the labels separated into single sheets are stacked in a fan-hold shape.

  And the manufacturing method of the linerless label which concerns on this invention is the process of apply | coating silicon to the whole surface of a laminate base material, and winding up once. A process of applying the decorative printing on the surface of the label base substrate slit to a desired size and simultaneously laminating the laminate. The process of winding the machine with a sewing machine blade that is mounted on the printing machine to separate the labels into single sheets. The process of applying the adhesive layer which formed the frame-shaped paste-less part on the back surface of the label base base material which carried the decorative printing and perforated. It is characterized by including.

According to the present invention, the following excellent effects can be obtained.
(1) The user can increase the work efficiency of attaching to an article by eliminating the trouble of peeling the label from the mount.
(2) Storage cost and transportation cost can be reduced by reducing the bulk of the mount.
(3) The label which is firmly adhered to the surface of the rubber vehicle tire immediately after molding and which is once adhered is easily peeled off due to the frame-like non-glue part as a clue.
(4) Contributes to the protection of the natural environment by reducing the amount of waste and saving resources, as well as eliminating the need for disposal and incineration.
(5) In the manufacturing process, since there is no mount, more labels can be wound on one roll, and work efficiency is good.

  The linerless label according to the present invention is mainly used as a standard label for tires. In addition, a sticker (for windows, for vehicles, etc.), a frozen food pressure-sensitive adhesive label tape, and a pressure-sensitive adhesive layer attached to a rough surface. Thick adhesive labels and tapes (for floor display), graphic arts adhesive products (bottle adhesive labels, price labels, weighing labels, nameplate labels, barcode labels, electrical wiring labels, copy paper labels, delivery adhesives Labels, adhesive labels for business forms, adhesive films for show windows, adhesive films for signboards, mark and stripe tapes for 2 and 4 wheels, marking films, adhesive sheets for signs, laminated films for printed materials, surface protection, anti-tampering Examples include labels, coupon labels, and wet tissue labels.

  Further, as a label base material, synthetic paper such as a metal foil-like namer (polyester aluminum vapor deposition material), polyvinyl chloride, polypropylene, polyethylene, cellophane acetate, polyester, nylon, vinylon, YUPO paper, and the like can be given.

  When the pressure-sensitive adhesive layer is formed on one side of the label base material, a release agent is applied to the back surface of the label base material (that is, the back side of the pressure-sensitive adhesive surface) to form a release layer. In this case, by winding the substrate in a roll shape with the pressure-sensitive adhesive surface inside, the pressure-sensitive adhesive surface and the release layer are adhered to protect the pressure-sensitive adhesive surface.

(A) which shows one Example of the linerless label which concerns on this invention is a perspective view, (b) is an expanded sectional view. It is a flowchart which shows the manufacturing process of the linerless label which concerns on this invention. It is a top view which shows the back surface (adhesion surface) of the linerless label which concerns on this invention.

  FIG. 1 shows an embodiment of a linerless label according to the present invention. A required printing surface as a decorative label is formed on the surface of a label substrate 1 formed of paper, plastic film or the like continuous in the longitudinal direction. Is formed, and a paste is applied to the back surface 2 to form a belt having a predetermined length, and perforations 3 are formed at predetermined intervals on the back surface 2 so as to be separated into a single-cut label 1a when used. It is configured.

  A rectangular adhesive layer 4 is formed in the width direction of the label substrate 1. In the figure, reference numeral 4a denotes a non-paste allowance to which no glue is applied. This non-paste allowance 4a is formed in a rectangular frame shape along the periphery of the label in a state of being separated from the single-cut label 1a. That is, it is important to provide a non-applied part of the glue that restricts the glue from protruding from the end of the label base material 1 when rolled and laminated in a roll shape, regardless of the geometrically applied shape of the glue. By providing this non-glue allowance 4a, it becomes a clue when peeling off the label once stuck, and the peeling work becomes easy.

  As the paste, an acrylic adhesive is generally used. As for the application method, an appropriate method such as application by a printing method on a flexographic printing machine or a screen printing machine can be selected in addition to a general adhesive application machine or spray application using a spray nozzle, In order to form 4a, it is necessary to delete beforehand as a non-printing surface from a printing plate (for example, rubber plate) for printing masking or glue 4.

  The perforation 3 can be engraved using a drum-type micro-sewing cylinder, and is placed in the width direction of the label at approximately the middle point of the non-adhesive margin 4a of the continuous label. By separating along the perforation 3, the label 1a addressed to one sheet is obtained. In addition, when affixing the label 1a to a vehicle tire, it is usually a manual affixation, but a separate affixing device may be used. The label of the present invention can be configured as fan hold paper instead of roll paper. In that case, of course, the perforation 3 is unnecessary.

  FIG. 3 is a flowchart showing manufacturing steps of the linerless label according to the present invention.

  First, the entire surface of silicon is applied to the laminate material (PP / PET) 5 and wound up (step S1). Next, the display content is cosmetically printed on the surface of the base substrate 1 slit to a desired size (step S2), and at the same time, the laminate 5 previously coated with silicon in step S1 is pasted (step S3).

  Next, a sewing process for separating the label into a single table is performed and wound up (step S4). Next, paste is applied in a frame shape with a hot melt coating machine on the back surface of the wound label base material 1 with the surface printed and perforated 3 (step S5), and a predetermined amount is applied while slitting to a desired size. Winding up (step S6).

  Examples of the present invention will be described below, but it goes without saying that the present invention is not limited to the present examples.

  An ultraviolet curable release silicone liquid was applied to the entire surface of a roll-shaped laminate film (PP-20 μm) slit in advance. In this case, more excellent curability can be obtained by mixing the photoinitiator at a ratio of 1:20. At the same time, by applying corona discharge treatment to the silicon liquid application surface, the surface energy is increased and stronger adhesion and peelability can be obtained. The corona discharge treatment was performed at level 2.

  Next, after performing decorative printing on the surface of the silver nameer (polyester aluminum vapor deposition material: 12 μm / 25 μm) to be the label base material 1 slit to a desired size, the laminate film 5 previously coated with the silicon liquid in the above-described process is applied. Laminated. Thereby, the protection of the printing surface and the clearness of the appearance can be enhanced.

  In order to make it possible to cut the strip-shaped labels wound in rolls one by one, labels are made using a micro-machine blade (cutting tooth interval: 0.5 mm) of a magnet cylinder mounted on the printing press. Perforation 3 was put perpendicular to the feed direction.

  A label base material 1 wound with a silver (white) namer (a single base material having a thickness of 12 μm or 25 μm) and a laminate film (PP-20 μm) 5 is set on a hot melt glue coating machine, A rubber-based hot melt paste (HM for tires: trade name, manufactured by No Tape Kogyo Co., Ltd.) was heated and melted and applied. Hot melt paste is used while keeping the inside of the paste tank at 160 ° C. with a controller, but the inside of the hose through which the liquefied paste flows also needs to be kept at 170 ° C. The temperature is raised to 187 ° C. in the head portion that becomes the blowout port applied to the label substrate. By intermittently discharging the liquid glue discharged from the head portion at 187 ° C., the paste-free margin 4a before and after (upper or lower in a single sheet state) on the back side of the label was formed.

  The application width of the glue is determined by inputting a numerical value to the controller of the glue application machine, but as a positioning, the start and end points for applying the glue are set by having the sensor read the phototube marks printed in advance. To do. The left and right glue widths were set by fitting shims (aluminum material 0.1 mm thick) to the mouth of the glue ejection head and limiting the glue ejection width. By installing this shim according to the desired glue width, the glue-free margin 4a on the left and right sides of the label was formed. By the above operation, the frame-like glue-free margin 4a was formed on the label back surface 2.

  The paste-free margin 4a is effective as a measure for preventing the glue from protruding. Moreover, it is preferable to set it to about 1 mm-2 mm on both the top and bottom because of the adhesive stability of the glue and the load at the time of winding in a roll shape (winding pressure is applied toward the center of the roll). It should be noted that it is necessary to sharpen the glue breakage as a precaution in glue processing, and therefore, the positioning (angle) of the glue discharge head is important (since the rubber adhesive has a high viscosity). The adhesive layer 4 preferably has a layer thickness of about 40 μm to 70 μm, and the adhesive strength is cohesive failure 13.8 N / 10 mm to 12.0 N / 10 mm (using a SUS plate), interface peeling 2.80 N / 10 mm to 2.90 N / 10 mm (SBR) Plate use), and loop tack (adhesive layer thickness 70 μm) is preferably interface peeling, 2.80 N / 10 mm at 40 ° C., 4.40 N / 10 mm at 20 ° C., 1.80 N / 10 mm (SBR) at 0 ° C. . Although the adhesive strength depends on the coating density of the paste, it is necessary to firmly adhere to the silicon layer as a release agent remaining on the surface of the rubber vehicle tire immediately after molding.

  Finally, a predetermined amount was wound while slitting the right and left sides of the take-up roll coated with glue to a desired size width with a rotary blade. Here, adjustment of the winding tension is important in order to reduce the resistance to the perforation 3.

1 Label substrate 1a Single-cut label 2 Label back (back)
3 Perforation 4 Adhesive layer 4a No glue (no glue)
5 Laminate (peeling layer)

Claims (4)

A label-less label having a label printed on the surface and an adhesive layer on the back side of the label base material that can be separated into single sheets, and a release layer on the surface side of the label base material. A linerless label characterized in that a frame-like no-glue part is provided on the back side along the periphery of the cut sheet. The linerless label according to claim 1, wherein the linerless label is wound in a roll shape with the adhesive layer inside. 2. The linerless label according to claim 1, wherein the labels separated into single sheets are laminated in a fan-hold shape. A process of applying silicon to the entire surface of the laminate substrate and winding it up. The step of applying the decorative printing onto the surface of the label base material slit to a desired size and simultaneously laminating the laminate. The process of winding the machine with a sewing machine blade that is mounted on the printing machine to separate the labels into single sheets. The process of applying the adhesive layer which formed the frame-shaped paste-less part on the back surface of the label base base material which carried the decorative printing and perforated. A method for producing a linerless label, comprising:

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