Water-activated sheet, water-activated label using said sheet, production method for said label, label adhering device using said label, and adherend for said label

A label sticking and water activation technology, applied in chemical instruments and methods, film/sheet adhesives, labels, etc., can solve the problems of sticking work, washing water pollution, label residue, etc., and achieves easy management. , the effect of reducing pollution and reducing residual glue

Active Publication Date: 2014-06-25
YUPO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In the present invention, take the above-mentioned self-adhesive label of the prior art as a foothold, and use the self-adhesive label due to dew condensation to cause label wrinkles and glue bleeding, the troublesome problems of attaching work, and the residual glue on the adherend when the label is peeled off, The problem of washing water contamination is a problem to be solved, and the object is to provide a label and a sheet constituting it that can solve the problems of the prior art

Method used

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  • Water-activated sheet, water-activated label using said sheet, production method for said label, label adhering device using said label, and adherend for said label
  • Water-activated sheet, water-activated label using said sheet, production method for said label, label adhering device using said label, and adherend for said label
  • Water-activated sheet, water-activated label using said sheet, production method for said label, label adhering device using said label, and adherend for said label

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Experimental program
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Embodiment

[0180] Hereinafter, an Example and a comparative example are given and the characteristics of this invention are demonstrated more concretely. Materials, usage-amounts, ratios, processing contents, processing procedures, and the like shown in the following examples can be appropriately changed as long as they do not deviate from the scope of the present invention. Therefore, the scope of the present invention should not be limitedly interpreted based on the specific examples shown below.

[0181] In the embodiment, the adherend with the label is manufactured according to the following steps: a paper material comprising a water-absorbing layer is manufactured, an adhesive layer is formed on the surface of the water-absorbing layer, and a water-activated sheet is obtained, which is then die-cut into required The size and shape can be used to make water-activated labels, and the labels can be pasted on the adherend using a water-activated label application device.

[0182] Furth...

manufacture example 1）

[0188] Using two extruders set at 250°C, the compound for the water-absorbing layer and the compound for the printable layer described in Table 2 were melt-kneaded separately, and the respective compounds were laminated in the die, and extruded. It is formed into a sheet and cooled to 70° C. by a cooling device to obtain an unstretched multilayer resin film.

[0189] After heating the film, at the stretching temperature (1) described in Table 2, stretching was performed between rolls in the longitudinal direction at the stretch ratio described in Table 2. Thereafter, heat treatment was performed with a roll set at a temperature 20° C. higher than the stretching temperature (1), followed by cooling to obtain a multilayer resin stretched film. Next, both sides of the obtained multilayer resin stretched film were subjected to 40w / m 2 Minutes of corona treatment to obtain uniaxially stretched / uniaxially stretched paper with thicknesses shown in Table 2 (cf. figure 2 ).

manufacture example 2～4、7～10）

[0191] Melt and knead the compound of the printable layer described in Table 2 using an extruder set at 250°C, extrude it into a sheet, and cool it to 70°C with a cooling device to obtain an unstretched single-layer resin film. After the film was heated to the stretching temperature (1) described in Table 2, it was stretched between rolls in the longitudinal direction at the stretch ratio described in Table 2 to obtain a longitudinally uniaxially stretched film.

[0192] Next, using an extruder set at 250°C, the compound of the water-absorbing layer described in Table 2 was melt-kneaded, laminated on one side of the above-mentioned longitudinal uniaxially stretched film, and then heated to the stretching temperature described in Table 2. temperature (2), and then use a tenter to stretch in the transverse direction according to the stretching ratio recorded in Table 2, heat treatment at a temperature 20°C higher than the stretching temperature (2), and then cool to obtain a mul...

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Abstract

Provided is a water-activated sheet (1) which has a porous water-absorbing layer (3) on at least one surface thereof, the liquid absorbing capacity of the water-absorbing layer being in the range of 1-10ml / m2. In the water-activated sheet (1), an adhesive layer (4) formed by coating and then drying solid a water-based adhesive is provided on top of the water-absorbing layer of a paper material. When used in a label, the water-activated sheet resolves the problems of conventional glued labels, such as creases in the labels and seepage of the glue of the labels due to condensation, the labour required to attach labels, the residual glue on the adherend after peeling off the labels, and pollution in the water used to remove the residual glue.

Description

technical field [0001] The present invention relates to a water-activated sheet in which an adhesive layer is provided in advance and the adhesive layer can be activated and adhered by supplying water. [0002] In addition, the present invention relates to a label comprising the sheet for displaying the contents of the container and the like. In particular, the present invention relates to the following water-activated labels, which save trouble when affixing the labels, rarely cause paper wrinkling and glue bleeding due to dew condensation when the labels are in use, are easy to peel off the labels when the labels are peeled off during container recycling, and have less glue residue on the containers , less pollution of washing water. Background technique [0003] At present, as labels applied to recyclable bottles (such as glass bottles, etc.) used to transport soft drinks and alcoholic beverages, glue (water-based adhesive) is applied to paper made of wood pulp paper and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02B32B5/18B32B27/00B32B27/10B65C9/22G09F3/10C09J7/29
CPCB32B27/18B32B2307/726B65C9/30C09J2201/614B32B27/32C09J7/0296C09J2423/006C08K2003/265C09J2400/283B65C9/22C09J2205/102G09F2003/025C09J7/042G09F3/10B32B2519/00C08K9/04B32B27/08C09J7/02B32B7/12B32B27/10B32B2307/516B32B2307/518B32B2307/542B32B2307/748B32B2307/75C09J7/29Y10T428/24934Y10T156/1374Y10T156/1798Y10T156/1785Y10T428/24851Y10T428/249982Y10T428/249983C09J2301/306C09J2301/408
Inventor 梅田繁良玉内洋光木村和幸山下经一
Owner YUPO CORP
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