WO2008038400A1 - Adhésif pour des étiquettes de conteneurs et procédé de contrôle de la force d'adhésion de l'adhésif pour conteneurs et étiquettes de conteneurs - Google Patents

Adhésif pour des étiquettes de conteneurs et procédé de contrôle de la force d'adhésion de l'adhésif pour conteneurs et étiquettes de conteneurs Download PDF

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Publication number
WO2008038400A1
WO2008038400A1 PCT/JP2006/321664 JP2006321664W WO2008038400A1 WO 2008038400 A1 WO2008038400 A1 WO 2008038400A1 JP 2006321664 W JP2006321664 W JP 2006321664W WO 2008038400 A1 WO2008038400 A1 WO 2008038400A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
container
label
starch
adhesive strength
Prior art date
Application number
PCT/JP2006/321664
Other languages
English (en)
Japanese (ja)
Inventor
Toshiya Kobayashi
Original Assignee
Suntory Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suntory Limited filed Critical Suntory Limited
Publication of WO2008038400A1 publication Critical patent/WO2008038400A1/fr

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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
    • C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products

Definitions

  • the present invention relates to an adhesive for container labels.
  • Patent Document 1 JP 2004-197049 A
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2000-284697
  • Patent Document 3 JP-A-5-46092
  • the label pasted through the conventional aqueous paste has a problem that the adhesive strength is too strong to peel 1, and a part of the aqueous paste and the label can remain on the container surface.
  • labels attached via heat-sensitive adhesives are inconvenient because they require a heating device to remove labels with strong adhesive strength.
  • a label attached via a pressure-sensitive adhesive is convenient when removing a label that is relatively easy to remove as compared with the aqueous adhesive.
  • the pressure-sensitive adhesive used for the label requires release paper, so a large amount of release paper dust is generated when the label is attached to the container, which is preferable from the viewpoint of environmental impact.
  • the present invention has been made in view of the above circumstances, does not require a release paper, has an adhesive property that prevents the label from peeling off under normal conditions, and a container.
  • the present invention provides an adhesive for container labels that can be easily peeled off when the label is peeled off.
  • the adhesive strength between the container and the adhesive, and the adhesive strength between the adhesive and the label are the physical interaction between the container and the adhesive or between the adhesive and the label (fan 'del' Intermolecular force), chemical interaction (bonding force such as covalent bond or hydrogen bond), mechanical bond (acts as a wedge after the adhesive entering the hole or valley of the container surface is solidified), etc. It is considered that the adhesive strength between the container and the adhesive is less than the strength of the container, the label, the adhesive itself, and the adhesive strength between the adhesive and the label. Is necessary.
  • the first characteristic configuration of the present invention is a mixture containing a starch-based adhesive and a non-starch-based adhesive having an adhesive strength of 2.45 N or more alone, and the adhesive strength of the mixture is 0. Greater than 78N 2. It is an adhesive for container labels that is less than 65N.
  • a second characteristic configuration of the present invention is that the non-starch adhesive is a bull oil-based emulsion adhesive.
  • the non-starch adhesive alone has a first adhesive strength of 1 for a wet container and a second adhesive strength of 1 for a dry container. .06 times to 1. 3 times.
  • a fourth characteristic configuration of the present invention is that the second adhesive strength is 2.45N to 2.75N.
  • the starch-based adhesive is 0.
  • the adhesive strength is 58N or less.
  • a sixth characteristic configuration of the present invention is that the non-starch adhesive is contained in an amount of 200 to 600 parts by weight with respect to 100 parts by weight of the starch adhesive.
  • a difference between a third adhesive strength for a wet container and a fourth adhesive strength for a dry container is ON to 0.19N. ; ⁇
  • the non-starch adhesive has a viscosity of 25,000 to 20,000-60, OOOmPa.s, and the starch adhesive The viscosity of 25.
  • a ninth characteristic configuration of the present invention is a container in which a label is pasted using the container label adhesive described in any of the first to eighth characteristic configurations described above.
  • a tenth characteristic configuration of the present invention is that the container described in the ninth characteristic configuration is a container in which a label is attached using a «let transfer type rotary labeler.
  • an eleventh characteristic configuration of the present invention is that the container described in the ninth characteristic configuration or the tenth characteristic configuration is a PET bottle.
  • the twelfth characteristic configuration of the present invention is that it is an adhesive for container labels, which is a mixture containing a bull resin-based emulsion adhesive and starch glue.
  • the thirteenth characteristic configuration of the present invention is that the first adhesive strength with respect to a wet container and the second adhesive strength with respect to a container in a dry state are 1. 06 times-1. It is in the point which is 3 times.
  • the second adhesive strength is 2.45N to 2.75N.
  • a fifteenth characteristic configuration of the present invention is that the starch paste has an adhesive strength of not more than 0.58N as a single substance.
  • the sixteenth characteristic configuration of the present invention is that the above-mentioned starch paste is added to 100 parts by weight of the starch paste.
  • -It contains 200 parts by weight to 600 parts by weight of a resin-based emulsion adhesive.
  • the difference between the third adhesive strength for the wet container and the fourth adhesive strength for the dry container in the mixture is ON to 0.19N. ; ⁇
  • the viscosity of the bulge resin emulsion adhesive is 25.
  • a nineteenth characteristic configuration of the present invention is that the container is a container with a label attached using the container label adhesive described in any of the above twelfth to eighteenth characteristic configurations.
  • a twentieth characteristic configuration of the present invention is that the container described in the nineteenth characteristic configuration is a label attached using a pallet transfer type rotary labeler.
  • a twenty-first characteristic configuration of the present invention is that the container described in the nineteenth characteristic configuration or the twentieth characteristic configuration is a PET bottle.
  • the twenty-second characteristic configuration of the present invention is a container characterized in that the vinyl resin emulsion adhesive is increased or decreased within a range of 200 to 600 parts by weight with respect to 100 parts by weight of starch paste. This is a method for adjusting the adhesive strength of the label adhesive.
  • a twenty-third feature configuration of the present invention lies in a container label adhesive adjusted by the method according to the twenty-second feature configuration.
  • the present inventor has eagerly studied the mixing and ratio of a high-viscosity adhesive with a PET container and a low-adhesive adhesive with a PET container.
  • the label for the container label of the present invention is peeled off in a normal state by mixing the starch-based adhesive with the non-starch-based adhesive, as shown in the examples described later. It has adhesiveness that does not occur, and the container force is easy to peel off when the label is peeled off. In both cases, it was clarified that stable adhesive strength can be achieved regardless of the dry state of the surface of the container.
  • the adhesive for container labels of the present invention does not require release paper and can suppress the generation of release paper dust.
  • the container label adhesive of the present invention comprises a starch adhesive and a non-denp adhesive, which will be described later, which are the main ingredients, in a predetermined ratio, and various additives are added as necessary, and a known stirring technique is added. Can be mixed and manufactured.
  • the container label adhesive of the present invention has an ON to 0.19 N difference between the adhesive strength for the wet container (third adhesive strength) and the adhesive strength for the dry container (fourth adhesive strength).
  • Some are preferable a wet container means a state where a plurality of water droplets adhere to the surface of the container and is wet, and a dry container means a state where no water droplets adhere to the surface of the container. Do).
  • the adhesive strength in this specification indicates a stress necessary for peeling off two bonded members and means, for example, a value measured by an adhesive strength test in Example 2 described later. is there.
  • the starch-based adhesive in the present invention is a starch as a main component (for example, corn starch, various modified starches) is an aqueous medium (for example, general water, for example, distilled water, ion-exchanged water, pure water, etc.).
  • aqueous medium for example, general water, for example, distilled water, ion-exchanged water, pure water, etc.
  • starch paste may be mentioned as a typical example.
  • the starch adhesive in the present invention preferably has an adhesive strength of about 0.58 N or less.
  • the starch-based adhesive in the present invention has a viscosity of 70,000 to 150, OOOmPa's at 25 ° C, more preferably 90,000 to 130, OOOmPa's.
  • the starch-based adhesive in the present invention preferably contains 41 to 47 parts by weight of non-volatile content in 100 parts by weight.
  • the non-starch adhesive in the present invention as a main component, a polymer compound other than starch (for example, acrylic resin, urethane resin, bull resin, epoxy resin, etc.) By dispersing or suspending, it means a remulsion adhesive, but at least a part of the polymer compound may be dissolved in the aqueous medium.
  • a polymer compound other than starch for example, acrylic resin, urethane resin, bull resin, epoxy resin, etc.
  • the non-starch adhesive in the present invention can be produced by a known production method (for example, emulsion polymerization performed using an appropriate emulsion dispersant (surfactant, protective colloid, etc.)).
  • the non-starch adhesive in the present invention preferably has an adhesive strength of 2.45N or more, more preferably 2. Adhesive strength of 45N or more, and the non-starch adhesive alone
  • the adhesive strength to the wet container is 1.06 to 1.3 times that of the dry container (second adhesive strength).
  • Adhesive strength is from 2.45N to 2.75N.
  • the non-starch adhesive in the present invention has a viscosity of 20, 000-60, 00 OmPa's at 25 ° C, more preferably 30,000-50, OOOmPa-s. It has a viscosity, and more preferably has a viscosity of 35,000-45, OOOmPa's (note that the viscosity is measured using a viscosity meter (Piscotester VT-042 (manufactured by Rion Co., Ltd.)) Measured).
  • non-starch adhesive in the present invention preferably contains 43.5 to 48.5 parts by weight of a non-volatile content in 100 parts by weight.
  • the bull resin-based emulsion adhesive in the present invention is a kind of the above non-starch-based adhesive, and indicates a emulsion resin containing bullet resin as a main component.
  • the bull resin in the present invention is a monomer having a bull group (salt bull, acetic acid). (Bule, ethylene, etc.) or a copolymer obtained by polymerization of two or more of the aforementioned monomers, or means a mixture containing these polymers in any proportion.
  • vinyl resin emulsion adhesives that can be applied to the present invention include ethylene acetate butyl resin emulsion (10-30% ethylene monomer mixed with butyl acetate monomer, emulsion polymerized under high pressure, and emulsion turbidity. Aqueous solution), and vinyl acetate resin emulsion (a milky white aqueous solution obtained by emulsion polymerization using a butyl acetate monomer as a protective colloid to form emulsion).
  • the blending ratio of the starch-based adhesive and the non-starch-based adhesive contained in the container label adhesive of the present invention is such that the non-starch-based adhesive is from 200 to 600 parts by weight per 100 parts by weight of the starch-based adhesive. It is desirable to blend so as to be parts by weight. It should be noted that the non-starch adhesive is increased and decreased within a range of 200 to 600 parts by weight with respect to 100 parts by weight of the starch adhesive, thereby adhering the container label adhesive of the present invention. It is also possible to adjust the strength.
  • the container label adhesive according to the present invention can be added with an additive as described below, if necessary.
  • examples of usable additives include water-soluble antifoaming agents, viscosity modifiers, and coloring agents.
  • the label to which the container label adhesive of the present invention can be applied is not particularly limited as long as it can be applied to the container label adhesive of the present invention and can be applied to the container described later.
  • the material is, for example, paper, synthetic resin, metal, or a laminate of these.
  • Containers to which the container label adhesive of the present invention can be applied include, for example, glass, metal, or synthetic resin (polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polysalt (Vinyl (PVC) etc.) bottles or bottles.
  • PE polyethylene
  • PP polypropylene
  • PET polyethylene terephthalate
  • PV polysalt
  • the label sticking to the container with the container label adhesive of the present invention can be carried out using a known automatic labeler.
  • the automatic labeler that can be used include a vacuum drum type labeler and a pallet transfer type rotary labeler, and a pallet transfer type rotary labeler is preferable.
  • Example 7 Prepare 7 types of adhesives (Samples 1-7) with different blending ratios of Bulle oil-based emulsion adhesive (hereinafter abbreviated as BE) and starch paste (hereinafter abbreviated as DE), Its adhesion to art paper and easy peelability (ease of peeling) were evaluated as follows.
  • Toxanol EXP-2 manufactured by Tokiwa Chemical Industry Co., Ltd.
  • Toxinol 770S manufactured by Tokiwa Chemical Industry Co., Ltd.
  • DE starch paste
  • PET plate material onto the label and place a 10kg weight on it. A person (70kg to 75kg) rides on it for about 5 seconds, then leaves it for 22 days.
  • Example 1 As adhesives to be tested, samples 1 to 7 of Example 1 were used, and their adhesive strength tests were performed as follows. However, since the art paper used in Example 1 is difficult to measure, it is difficult to measure the correct adhesive strength, so an adhesive strength test was conducted using a non-woven fabric as an alternative.
  • Example 1 As shown in Table 2, the adhesion strength in Sample 2 is 0.78 N, and the minimum value of adhesion strength in Sample 6 is 2.65 N. Therefore, the results shown in Example 1 (Table 1) above are shown. In view of the above, it was determined that an adhesive having an adhesive strength greater than 0.78N and less than 2.65N was preferred.
  • a comparative test of adhesive strength was performed using PET plates with labels (made of unemployed cloth) with different surface dryness.
  • Sample 1 As an adhesive to be tested, Sample 1, Sample 3, and Sample 7 of Example 1 above were used, and as a comparative example, a conventional pressure-sensitive adhesive (acrylic emulsion: Art-tack paper (manufactured by Daio Paper Co., Ltd.)) It was used.
  • acrylic emulsion Art-tack paper (manufactured by Daio Paper Co., Ltd.)
  • PET plates with different surface dry conditions were prepared as the PET plates for attaching labels.
  • samples 1, 3, and 7 For each sample (samples 1, 3, and 7), measure the adhesive strength to wet PET plate 1 (third adhesive strength) and the adhesive strength to dry PET plate (fourth adhesive strength) three times each (wet PET The plate 1 and three dry PET plates were used 3), and the difference between the average values was calculated.
  • Arttack paper was affixed to the above three types of PET plate (dry PET plate, wet PET plate 1, 2) with a pressure roller (approximately 49 N / cm 2 ), and for a specified period (3 days and 7 days). ) After standing, the art tack paper was peeled off by a tensile tester (18mm width), and the load was measured to determine the adhesive strength. In addition, the difference between the measured adhesion strength to wet PET plates 1 and 2 and the adhesion strength to dry PET plates was calculated.
  • Example 3 The results are shown in Table 3 below. As shown in Table 3, the difference in adhesive strength in Sample 3 was small compared to the other samples (Samples 1 and 7, Comparative Example). In other words, it was found that the adhesive of Sample 3 can provide a stable adhesive strength regardless of the dry state of the PET plate surface, and other samples for which good sensory evaluation was obtained in Example 1 above. It was speculated that stable adhesive strength could be obtained in the same way for 4 and 5.
  • the adhesive strength to the wet PET plate 1 is the adhesive strength to the dry PET plate (first 2 adhesive strength) was 1.06 times to 1.3 times, and the second adhesive strength was 2.45N to 2.75N.

Abstract

L'invention concerne un adhésif pour des étiquettes de conteneurs, lequel adhésif contient un adhésif à base d'amidon et un adhésif ne contenant pas d'amidon ayant une force d'adhésion de 2,45 N ou plus lorsqu'il est employé seul, et présentant une force d'adhésion de plus de 0,78 N mais inférieure à 2,65 N. Cet adhésif pour étiquettes de conteneurs ne nécessite pas de papier anti-adhésif, il présente un caractère adhésif tel qu'il empêche les étiquettes d'être retirées par pelage dans des conditions normales et montre une aptitude au pelage aisée dans le cadre du retrait par pelage d'une étiquette à partir d'un conteneur.
PCT/JP2006/321664 2006-09-27 2006-10-30 Adhésif pour des étiquettes de conteneurs et procédé de contrôle de la force d'adhésion de l'adhésif pour conteneurs et étiquettes de conteneurs WO2008038400A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-262656 2006-09-27
JP2006262656A JP4956120B2 (ja) 2006-09-27 2006-09-27 容器ラベル用接着剤及び容器ラベル用接着剤の接着強度の調整方法

Publications (1)

Publication Number Publication Date
WO2008038400A1 true WO2008038400A1 (fr) 2008-04-03

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PCT/JP2006/321664 WO2008038400A1 (fr) 2006-09-27 2006-10-30 Adhésif pour des étiquettes de conteneurs et procédé de contrôle de la force d'adhésion de l'adhésif pour conteneurs et étiquettes de conteneurs

Country Status (2)

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JP (1) JP4956120B2 (fr)
WO (1) WO2008038400A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5186533A (fr) * 1974-12-16 1976-07-29 Nat Starch Chem Corp
JPS6353375A (ja) * 1986-08-20 1988-03-07 Matsushita Electric Ind Co Ltd ガス遮断装置
JPS63112672A (ja) * 1986-10-29 1988-05-17 Sekisui Chem Co Ltd 水溶性粘着剤組成物
JPH01148875A (ja) * 1987-12-02 1989-06-12 Kao Corp 家庭用糊料組成物
JPH02683A (ja) * 1987-12-07 1990-01-05 H B Fuller Co デンプン系接着組成物
JPH0345656A (ja) * 1989-07-14 1991-02-27 Kuraray Co Ltd 組成物、接着剤およびガラス基材
JP2000284697A (ja) * 1999-03-30 2000-10-13 Toppan Printing Co Ltd ラベル及びラベル付きガラス瓶、ボトル
JP2001040321A (ja) * 1999-07-28 2001-02-13 Nippon Nsc Ltd ラベルの接着方法
JP2005177542A (ja) * 2003-12-16 2005-07-07 Toyo Glass Co Ltd ガラス容器のコーティング方法及びガラス容器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4022268B1 (fr) * 1963-10-07 1965-10-02
JPS5523876B2 (fr) * 1972-06-09 1980-06-25
JPS606772A (ja) * 1983-06-27 1985-01-14 Daicel Chem Ind Ltd 無線綴用接着剤

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5186533A (fr) * 1974-12-16 1976-07-29 Nat Starch Chem Corp
JPS6353375A (ja) * 1986-08-20 1988-03-07 Matsushita Electric Ind Co Ltd ガス遮断装置
JPS63112672A (ja) * 1986-10-29 1988-05-17 Sekisui Chem Co Ltd 水溶性粘着剤組成物
JPH01148875A (ja) * 1987-12-02 1989-06-12 Kao Corp 家庭用糊料組成物
JPH02683A (ja) * 1987-12-07 1990-01-05 H B Fuller Co デンプン系接着組成物
JPH0345656A (ja) * 1989-07-14 1991-02-27 Kuraray Co Ltd 組成物、接着剤およびガラス基材
JP2000284697A (ja) * 1999-03-30 2000-10-13 Toppan Printing Co Ltd ラベル及びラベル付きガラス瓶、ボトル
JP2001040321A (ja) * 1999-07-28 2001-02-13 Nippon Nsc Ltd ラベルの接着方法
JP2005177542A (ja) * 2003-12-16 2005-07-07 Toyo Glass Co Ltd ガラス容器のコーティング方法及びガラス容器

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JP4956120B2 (ja) 2012-06-20
JP2008081592A (ja) 2008-04-10

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