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Labeled container and method of manufacture

A manufacturing method and labeling technology, which is applied in the field of labeling containers and its manufacturing, can solve the problems of container deformation, aesthetics and deterioration, and achieve the effect of effective and simple manufacturing

Active Publication Date: 2011-11-30
YUPO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been found that there is a problem that when the in-mold labeling method is used, especially when the label is attached to a thinned container, dents are generated on the container immediately after blow molding (label attachment part dents), bumps (expansion of the label-attached part), the container is partially deformed and the appearance is deteriorated

Method used

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  • Labeled container and method of manufacture
  • Labeled container and method of manufacture
  • Labeled container and method of manufacture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0093] The following examples and comparative examples are given to further specifically describe the characteristics of the present invention. Unless departing from the gist of the present invention, materials, usage amounts, ratios, treatment contents, treatment steps, etc. shown in the following examples can be appropriately changed. Therefore, it should not be construed that the scope of the present invention is limited by the specific examples shown below.

[0094] Here, a thermoplastic resin film serving as a base material was produced in the following steps, an adhesive layer was formed on the back surface to form a label, and a labeled container was produced and evaluated by in-mold labeling. Table 1 describes the details of the materials used. "MFR" in the tables means melt flow rate. Table 2 describes the types and compounding amounts (% by weight) of materials used in the production of each thermoplastic resin film, stretching conditions, and the structure and thi...

manufacture example 1、 manufacture example 2

[0096] (Manufacturing Example 1, Manufacturing Example 2, Manufacturing Example 4, and Manufacturing Example 5)

[0097] The compound [A] described in Table 2 was melt-kneaded and extruded with an extruder set at 250°C, and cooled to 70°C by a cooling device to obtain a single-layer unstretched film. This unstretched film was heated to the stretching temperature (1) shown in Table 2, and stretched 5 times between rolls in the longitudinal direction to obtain a longitudinally uniaxially stretched film.

[0098] Next, the compounds [B] and [C] were melt-kneaded separately using two extruders set at 250° C., laminated on both sides of the above-mentioned longitudinal uniaxially stretched film, and then heated to the stretching temperature described in Table 2. Stretching temperature (2), and then use a tenter stretching machine to stretch 8 times in the transverse direction, perform heat treatment at a temperature 20°C higher than the stretching temperature (2), and use a dischar...

manufacture example 3

[0100] Compounds [A], [B], and [C] having the compositions shown in Table 2 were melt-kneaded using an extruder set at 250°C to form a three-layer structure of B / A / C Co-extruded, then cooled to 70°C using a cooling device, and further using a discharge processor (manufactured by Kasuga Electric Co., Ltd.) to apply 40W / m 2 • Minutes of corona treatment, resulting in a 3-layer unstretched film.

[0101][Manufacture of heat-sensitive adhesive]

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Abstract

A label having a thickness of 30 to 120 [mu]m and Gurley stiffness of 4 to 40 mgf, and comprising an adhesive layer which has a melting heat quantity of 10 to 55 J / g, is adhered on a body of a container having a thickness of 50 to 130 [mu]m, so that the direction of the label having Gurley stiffness of 5 to 40 mgf corresponds to the circumferential direction of the container body, by an in-mold method. Thereby, the label can be adhered with a sufficient adhesion strength, and a thin container which is not deformed by the label can be provided.

Description

technical field [0001] The present invention relates to labeled containers and methods of making the same. In particular, it relates to a labeled container and a method for manufacturing the same, wherein deformation of the container is not observed when the labeled thin-walled container is formed by an in-mold labeling method, and the adhesive strength of the label is high. Background technique [0002] Currently, containers made of resins such as polyethylene terephthalate (PET) and polyolefin are used in the market for a wide variety of purposes. They are labeled with various types indicating contents, and are sold as commodities after being filled with contents. Such a labeled container is mainly heat-shrinked by placing a tubular heat-shrinkable film label (so-called shrink label) on the container, or placing a tubular stretchable film label (so-called stretch label) ) is elongated and placed in a container to manufacture (for example, refer to Patent Documents 1 to 4...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D25/20B29C49/24B65D1/00B65D1/02B65D23/00G09F3/04G09F3/10
CPCB29C2049/2412B29C2049/2466B29K2023/12B29K2623/06B29K2067/00B65D23/0864B29L2031/744B29K2023/083B29C49/24B29C49/06B29C49/12B29K2023/06B29C2049/2429B29C2049/2435B29C2049/2433B29C2949/0715B29C2049/7831B29C2049/7862B29C2049/78645
Inventor 木村和幸玉内洋光船户孝
Owner YUPO CORP
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