JPS61201287A - Label for managing preservation temperature - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) □The present invention is preserved once it is polished and the bell is polished.
For pongee, it is applied to the basic article with a multi-level temperature control.
This is a label for storage temperature management, which is provided with a part indicating the applicable condition and a part indicating the controlled temperature condition. ... Frozen foods - Refrigerated foods, fresh flowers, medicines, etc. require strict temperature control during transportation and storage.

Therefore 1. There is a need for a method to easily determine the temperature and length of each item to be controlled.6
'Kasumi-・“ ' □ (Conventional technology) □ ...1' As a non-digital filter for temperature control, it is already 90$゛゛, p3゛95
4011, utilizing the melting phenomenon of a colored solid resin acid and the capillary phenomenon of blotting paper, Japanese Patent Publication No. 5'7-43'19, Japanese Patent Publication No. 57-2'85/59. proposed that the degree of activation of lipase enzyme differs depending on temperature, and the degree of activation is determined by pH.

Some proposals have been made, such as one that uses an indicator to distinguish colors.・ □ ・゛(Problem that the invention attempts to solve)゛、・ '8ji? jz shifi
6i et al., ``These methods are methods for aging management that can be applied and applicable to items that are distributed in large quantities.''
-The disadvantage is that it is expensive; it cannot be used easily.・1 The problem of the present invention is to overcome the drawbacks of the prior art as described above.
□゛ 5 Horse...

Unraveling 1. It has a powerful temperature control and is easy to use.

We will conduct various studies. By applying a coloring system using methine-based dye precursors and oxidizing materials to the temperature display unit, we have created a highly distinctive and effective unit.
I found this (patent application 1986-16, .1..8)
! 3. ,．． No. 9). 1,, - That is, the unit is 1. (1) a hydrophobic organic compound at one point,
(2) Methine-based dye precursors and (6) those using oxidizing materials as essential constituent materials'/':°
It is. Pa″-do,)
・−)・And this temperature control unit is composed of the microcapsules of (1) above, (2) and (
6), or microcapsules in which (2) is dissolved in (1) and (6) held as an essential component on a support.

In this unit, the hydrophobic organic compound (1) is used after its melting point is reduced to near the upper limit of the storage temperature of the article to which it is to be temperature-controlled.

5. Therefore 1. The storage temperature is controlled by this unit using the following process and mechanism.

That is, when applying the unit to an article, the microcapsules on the support are ruptured by an appropriate method. (1) in the microcapsules has a "melting point" near the upper limit of the storage temperature of the article to which the unit is applied. At the desired storage temperature of the article, it is in a solid state and does not cause methine or dyes to come into contact with oxidizing materials. However, when the desired storage temperature is exceeded, (1) melts and diffuses, causing the above two to come into contact. The characteristic of the 6-pronged system that produces color from methine pigment precursors is that it uses methine pigment precursors to produce color (inverse color development). Since there is no color check, you can definitely know if there is any abnormality in the temperature control status of the i-crystal.

The present invention provides a storage temperature management label that is more practically devised for storage temperature management, taking advantage of the features of the temperature management display unit as described above.
・ ・ 1. .

That is, the present invention provides, on a support, '(A) as an essential component, (a) microcapsules containing a hydrophobic organic compound having an arbitrary melting point, a methine dye precursor, and an oxidizing material; (b) )! A microcapsule containing a hydrophobic organic compound having an arbitrary melting point in which a tin-based dye precursor is dissolved, and a retention layer containing one or more layers of an oxidizing material; This is a storage temperature control label comprising microcapsules of a non-volatile organic solvent containing a pressure-sensitive dye and a retention layer containing one or more layers of an electron-accepting color developer. ,1
,′,・In the storage temperature control label of the present invention,
As the support, various film-like webs 1, specifically, paper, impregnated paper, synthetic paper (paper-like films made of various synthetic resins), and various plastic films can be used. 5.

The label for storage and temperature control is 1. An environment with a lot of moisture,
Since it is often used for storage or frozen foods, the support is preferably water-resistant synthetic paper, plastic film of each kind, or resin-impregnated paper.

The thickness of the support is generally 30 to 200 microns.

In the label of the present invention, the above-mentioned prisoner
A hydrophobic organic compound (hereinafter referred to as single furnace @
*The six are mutually transformed into a single liquid by the internal cutting edge of the micro-cub, and the two are mutually transformed into one liquid. When the microcapsules are released, they become one body at a certain temperature or below, and become a liquid at a certain temperature or above.
It is a non-volatile hydrophobic organic compound that behaves in a similar manner. Specific compounds include, in order from trivial (44@low) tricaproingli, cerito, ini ntx7. Zen, 5-diethyl pimelate, n-butyl benzoate, n,-decylcycloden! N, 1-pentylnaphthalene, octyl enanthate, heptyl caprate, 1-n-buna, lunaphtha? 7-purine diethyl, methyl caproate,
1-za4,,'7 /I/-1-ntalene, dodecyl acetate, relev 8lua, /L/koninohi, octyl caprylate, devil acetate, ethyl decanoate, decylbenzene, 1,6-dimethane Lunaphthalene, 1-ethylnaphthalene, 1-liluo-2,6-dicaprylinugly<I
J-do, acetic acid-undecinope 1-lauro-2,3-dilylein triglyceride, 1-caproyl-2,'5-
Distearate triglyary, do, undecyl caproate, hebutyl phosphate, n-nonylcyclohexane, 1-propylnaphthalene, n-undecylcyclopentane, 1-mly, 2,6-dilylyne Triglyceride, 1-heptylnaphthalene, 2-ethylnaphthalene, 1-cabucryl-2,6-dihexyl, in-triglyceride, dimethylsperate, undecylbenzene,
n-dodecyl-cyclopentane 8, ethyl tridecanoate, butyl laurate 1. Dodevil caproate, sashimi9.
Methyl oleate, 2-n-pentylnaphthalene, 1.3
-dimethylnaphthalene, dimethyl azelaate, dimethyl perate, 2-n-hexylnaphthalene, butyl laurate, 17n, -off: chill 5 naphtha, ren 1.
cormorant.

Ethyl urinate, n-decylcyclo-2-hexane, diethyl sebacate, 1-lyluo-2,6-dicapric triglyceride, butyl myristate, 2-n lower methylnaphthalene, tetrazocyl cafproate, n- Dodecylbenzene, 1-oleo-2,5-cycapurine-triglyceride, 2-oleo-1,6-cycapurine-triglyceride, methyl laurate, n-tridecylbenzentane, n-undecylcyclohexane, capronic acid tritesyl, nonyl Naphthalene, n-tetradecylcyclopentane, nTpentadecane, tridecylbenzene, 1-
5-butatecene, 2-n-octylnamatalene, 22°-
ノ°′吋ふた″・2-U′deca″・ethyl myristate, n-dodecylcyclohexane, 1. - Mirisuri 2,6
-Siointoriguri.

Lido, isobutyl palmitate, ethyl pentadecanoate, decylnaphthalene, n-tetradecylbenzene, metadecyl caproate, n-penta, cyclopentane, 1-octadecene, -hexa, te:p1
．． 1, Ninoceremito 2,3-diolei, i,-triglyceride, Pal, butyl mitate, Connector 1)\1-1
□ Methyl tinate, methyl pentadecanoate 1, NoF￥: Lumi, -fluoric acid, amyl, oleate, Nylene 1.2
-1. , n-, 'f, h, luna, a? , Ray,, Palmitic acid-, Zuinno,! /, 1 micho no shi, jiku devil cyclopentane 1. ．． ．． i, ri, 5ri τkan), 1γ, lyol, benzylidenemalonic acid, -1doethyl, /, F,
,,Nosai,7゜ri,/17,Cinnamic acid-benzinoid,
Telesta oligoacid dihydrochlorinol, 1-tetradecanol 5
1.11, J child: L-Schiff 16 enino V engineering? 1. I1
．． ．． 1, 5.5-trimethoxib <Gin 11. See,
N4, me.

To 1 Kishite, N6 Sai, Anzu Tadeka, I, - Ru, 91
1f, ), Lz, anthracene, p-methylte,
Boiling point 5, force y2., which has a sharp melting point between -30°C and 70°C, such as N, IF, TE, NOAH, etc. o, o℃
Of course, the above-mentioned hydrophobic compounds include S, S, and S,
j and :;11. It,＞.

Also, in the chapter <A>, it is used,
System, color) element, precursor 1! .

= formula 2(■), 1・□・1, 4X1Y and Zp
Two of them can be combined to form a ring. In addition, if there is one or less aromatic heterocyclic residue among X1Y and Z,
, a styryl group and at least 14 temino groups in the para position relative to the central methine group of the molecule, a substituted amino or lower, aryl, ≠oxy group, having 2, actual. ,):
A general term for colorless to pale colors represented by , typically.

Example 4. ? t', 1.4. ．． 4", tris-dimethylreaminol, tri-1: L, +7 no methane, 4.
4', 4''-tris-diethylamihalifeni, nonimenaman, 4.4'-bisumethishoto noa 4''7q mesulamino-triphenylmethane, noyo, una 1to, rear 5mi, notori 7 Emolmethane dyes, such as 4,4'-bis-dimethylamino/, -trif, and enni.

lumethane, 4.4' lower dimethyl, aminogmethyl, str) 4. ,,p,-Tilmeta,,,4,4'-
Bis=(,N-be,n,ji,nobiniN,-ech1nobitemino,)-trif thousandteteme1,tan,4. s'-gsu, -dimethi, lua, mino 7.4"-methoki 11+
□1,
Diamino-triphenylmethane dyes such as , 11-citriphenylmethane, e.g. 4',4'-dimethoxy-411-dinthylamino-triphenylmethane, 4,4'-dimethoxy-3
n-Methyl-411-methylamino-triphenylmethane, monoaminotrilayenylmethane dyes, such as bis-(4-dimethylamino-triphenyl-1')-
Naphthylmethane dyes such as 4'-dimethylaminophenylmethane, e.g. bis(4-dimethylaminophenyl)-β-styrylmethane, bis(4-dimethylaminophenyl)-
β-styrylmethane dyes such as β-(4'-dimethylaminostyryl)-methane, e.g. bis(1-ethyl-2-methyl-indol-6-yl)-(4'-ethoxyphenyl)-methane , screw (1-゛Echishi sea 2
Examples include indolylmethane dyes such as -methyl-yn-3-yl)-(4'-dimethylaminophenyl)-methane;
Methidi-based dyes described in No. 89 Public Axis can be used.

These methine dye precursors represented by general formula (I) are:
(1) By thoroughly mixing or wet pulverizing in the presence of a polymer having dispersant or protective colloid ability in a solvent (preferably water) in which they do not dissolve, a suspension of microparticles can be obtained. (2) Dissolved in a hydrophobic organic compound and then microencapsulated to increase the storage stability of the compound. For this purpose, a coating containing a suspension or microcapsules of at least one selected from (1) a water-soluble alkanolamine, (2) a water-soluble metal ion sequestering agent, and (6) a quaternary ammonium salt is prepared. Add an appropriate amount to a composition for use or printing.

(1) The water-soluble alkanolamines include alkanolamines having a tertiary amino group such as tris-N-(2-hydroxyethyl')amine, tris-i
``'(2-Hydroxypropyl)-乎JIN, 1RIS-N
Specific examples include -(3-hydroxylpropyl)dine, N,N-dipropyl-N-(2-hydroxyethyl)amine, and the like.

Sequestering the metal ion of ゛(2) Toshiba, ゛Star ethylene dididemic acid ゛Tetraacetic acid, N゛-Hotelite゛Kiddiethyl□゛Ethylenediami'7, ``N;N'', ``N''-Triacetic acid, diethylene, triamine-penta Acetic acid JN"-Human diacetic acid, ethylacetate) Amyle □=', N'' Specific examples include acetic acid, ditriparotriacetic acid, and their alkali metal salts. Zara ag(s
The quaternary ammonia is lauryltrimethylammonium chloride, allyltrimethylammonium chloride, allyldimethylammonium chlorabide, trimester) nano 1. Berezyl aremo-umc plaster is an example of a true substance.'-'[1'] Delcanolamines, (2) Metal ion sequestering agent, (3) ip" quaternary The amount of the ammonium salt used is 1 to 10,000 parts by weight, preferably 1 to 100 parts by weight, based on 100 parts by weight of methine-based colorants.
- Hydrophobic organic compound or methine dye precursor (2) interfacial m1 polymerization method, or (3) In-8 itu polymerization method □
71 Iku Nishi is encapsulated. Among these, microcapsules using aminoaldehyde resin as a mirror material by in-situ polymerization method have (a) a dense, highly permeable "covered wall" and (b) a high solidity. I like the type concentration in terms of ★zaru゛ and □, and (C) - no defeat, etc. 14.・1.
□ ゛゛゛゛゛゛゛゛゛゛r佳4j〉 Company and ゛C〇〝mm゛Methidi-based dye precursor A developer having the ability to glacially acidify <i'b'';'i&M;m is used, and preferred is the general formula '(I) or group, nitro group, carboxyl group, alkoxycarbonyl group, aryloxycarbonyl group, aralkyloxycarbonyl group, alkylsulfonyl group, arylsulfonyl group, aralkylsulfonyl group, alkoxysulfonyl group, aryloxysulfonyl group, aralkyloxysulfonyl group, acyl At least one electron-withdrawing group selected from the group
The other is a hydrogen source, an alkyl group, an alkoxy group, an aralkyloxy group, an alkyl group, an alkyl group, a thio group, and an adjacent carboxyl group forms an imide ring. ) Nonvolatile benzoquinone derivatives substituted with an electron-withdrawing group represented by: 5. Among these, particularly preferred benzoquinone derivatives are nonvolatile p-benzoquinone derivatives substituted with two or more electron-withdrawing groups.

Specific examples of benzoquinone derivatives used in the present invention include 2,3-dicyano-5,6-dicyano-5,6-dikuchoru 1,4
-Benzoquinone, 11.6! Ahead, Nidofu:! , Mu0.
5,6-dicylinone 1,4-benzoylnon 1.2. ．． 5
,5. ．． 6. -tetrabromo-1,4-benzoquinone,
2,4,5.6=tetraiodo-1,4-benzoquinone, 2.5.5.6-titraethoxycarbonyl-1,4
-benzoquinone, 2,3,5,6-chitler i-butoxycarbonyl-1,4-benzoquinone, 3,4,5.6
-Cytrapropyloxycarbonyl-1,4-benzoquinone, 2,5-ethoxycarbonyl-1,4-benzoquinone, 2,5-di-n-hyloxycarbonyl-31,4-benzoquinone, 2,5-dioxyrohexyl, hydroxycarbonyl-1,4-benzoquinone, 2,
5-dibenzoyl-1,4-benzoquinone, 2.5
-di-n-butoxycarbonyl-6,6-dichloro-1
2,4-benzoquinone, 2,5-di-ethoxycarbonyl-6,6-dipromo-1,4-benzoquinone, 2,5
-G-N-O, Ri, Toxicarbonyl-6. , 6-dipromo 1.4.2-benzoquinone, 2,5-di-basil 1. Oxycarbonyl-3,6-cyclo-1,4-
Benzo Keno.

2,5-dibenzoyl-6,6-dichloride = 1,4
-、、Ben、Zoki、No1、I? , 5-diacetyl-6
, 6-1 Gypro, 7. ．． ．． ．． , 1.4. Nibe 1 Izokino, N, 2,5-Jetoxy force, .

lbo, nyl-6,6-diphenylene, sulonil, =,
,1,,4,-.

Benzoquinone, 2,5-G12-Ptoki, Power, Report, ÷ Roof, 3. ．． 6-G47-Drills: Noniho,
Morni 1, 4-, Benz,? Quinone, 2,5. -Jean...? ) Brother Zen±, Shipile, O, Kisical, Bo Nil−
3,6-G4'-, To, BladehiH, Rolhomol-1,4
-benzoquinone, 2,5-di-n-okutyloxy,
, carbonyl-6,6-one, , 4/-cyclo, , oxybeef 5th edition, nylsulfonyl-, 1,4-ni, zoki,
V6. -, Schifu (13', 4'-dimethylfe shakka Suno to Honino!, /):, 71. ,,． 4ζ
14 = benzoquinone 1. ．． ．． 3,4. ,5,6. ．． 7 Tetraethylsulfo,2,ru,1,4-benzoquinone 1.2
,6・,5,6-tedo,u,=.

n-octylsulfonyl-1,4-ben? Good, l
A, 55.2, r, 5. - Dicyclohexino to Oxica Ruboni) & 5-. ! 1-pendylsulfonyl-1
,4,,,1,i Inzoquinone 1.24. Huge, -G-n-
Butoxygalbo, nino l/, 713 di(, β1 tri, l,)-sulfonyl-1,4-zunzoki, no, n, 2%5
．． -Jethoxycarbonyl-, "l, near" (, 219
,,5/,-ji1me.

tylphenylsulfonyl)-1,,4,-benzoquinone, 1. ．． 2.5-Schiff, n-butoxycanobo, nino-3,6-gen, -butoxysnobo, nyl-1,
44-benzoquinone 2.2.5-di,4,'-tolysul,bonyl-6,6-dibu1:rom= ,1,4
- quinone, 2-benzoyl-1,1,4,7
1,9,4-benzoquinone, 2-phenylsulfosol, 1,4-benzoquinone, 2-(4,,'-methylphenol, 1,9,4-benzoquinone, 2-,
′-Schiff, :cl sori, ], shi, winter ruho) =
, 1,,,. 4. -benzoquinone) 2-benzylsulfoyl- which beizoquinone 5. For example, the derivatives are limited to mochi, ron, and komura, but are not limited to the following. ,1,
,.

,,ζTo be small. Zo, ki, i. If the surfactant is ≦, the conductor is protected. Mamoru 1 child νi. , Do,, wet-type lens frame with the presence of a substance and an aqueous suspension 1. , shi, coating, used for adjusting the liquid. ,, Mokuko's father-in-law. (It is said that the ingredients of more than 100,000 yen are added to the branch body, but in addition to that, there are also 9.

A variety of inorganic or direct pigments, such as ζ4 kaolin, can be used to adjust the properties of sapphire, spring rejuvenation, madder color, etc. Ruta strangely, titanium carbide, zinc oxide, white car, boi,'< :),,h,,,7, gamma oxide octoxide, urea ho... ．． Lumualde.

H: 1-Month effect,, G, polystyrene, Dingjo.

and water-soluble binders such as polyvinyl alcohol, methyl cellulose, hydroxyethyl cellulose, soluble starch, casein, and vegetable gums, as well as stays to prevent microcapsules from being destroyed by minute pressure. For example, it is common to use wheat starch, horse starch, cellulose powder, and various synthetic resin particles in combination.

Examples of the structure of this layer include (1) a mixture of a methine dye precursor, an oxidizing material, and microcapsules of a hydrophobic organic compound and held in a single layer on a support; (2) A garment in which the above three components are held in two layers, (6) a garment in which two components are held on the surface of the support and one component is held on the back side of the support, (4) Methine. Examples include microcapsules encapsulating a hydrophobic organic compound containing a dye or an oxidizing material dissolved therein, and other components held on the same or both sides of a support.

``Next, the retention layer □ (゛hereinafter □,
(simply referred to as layer (B))
Pigments and "" include, for example, blue pigments such as crystal violet lactone, (3) fluoran pigments such as 3-diethylnamino-6-methyl-7-anilinofluorane, (4) leuco auramine pigments, (5) ) Spiropyran pigments, etc., and one or more types are selected and used.゛These dyes can be used in non-volatile organic solvents, with melting points or pour points of
It can be dissolved in a non-volatile aromatic organic solvent at 0°C or lower, such as phenylquinolyl, diigpropylnaphthalene, partially hydrogenated terphenyl, aluminum resin diphenyl, benzylated toluesina, etc., to produce gelatin, polyamide resin. ,
゛Polyester resin, urea formaldehyde resin,
Microphones are encapsulated using various microencapsulation methods using melamine formaldehyde resin as a membrane material.

□゛What is the electron-accepting color developer used in the (B) second layer?
□°' On the hubel, the above-mentioned insulting capsule is ruptured and comes into contact with the pressure-sensitive dye solution flowing out, causing an acid-base reaction □
The pressure-sensitive dye can be colored depending on the reaction. For example, natural or synthetic solid acids such as acid clay and activated clay, p-phenyl □ phenol formaldehyde condensates, p-alkyl phenol formaldehyde condensates, or their Examples include oil-soluble solid acids such as divalent gold salts and polyvalent metal salts of salicylic acid derivatives. i' ``These solid acids'' are generally obtained in the form of fine powder, so they can be dispersed in water.
-Mi The organic solid acids used in this process are
This dry method or wet method is used to finely crush the particles, resulting in fine m'-
It is preferable to use an aqueous dispersion.

The basic feature of the present invention is that the foreboard (the side of the foreboard and the layer (B)) are held on the same surface on the same support body, so that the
The tier number format is the printing method.Formula 1, the name tier is 9, which is the preferred number.゛I'm going to cry. ′°゛゛′□
The layer (A) contains (l) a microcapsule containing a biohydrophobic organic compound having the above-mentioned arbitrary melting point, (n) a methine dye, and (1) an oxidizing material. Printing inks containing as essential components, or printing inks containing (0) inwardly tilted microcapsules containing hydrophobic organic compounds in which methine dyes are dissolved, and (1) oxidizing materials, respectively. Prepare the loincloth and laminate it using a printing method to form the loincloth.□ □
1. Additives are appropriately added to these printing inks to adjust the printability of the printing ink and various properties of the wood chips. □: There is a structure that can effectively produce color in the arm and temple layers.゛□Only', one copy'□Usually (1), ``(n
), (nl) or (1), (0) are preferably stacked in this order.

Between (1) and (1) and (0), a methine dye is diffused in a dissolved state and comes into contact with the oxidizing material in the (1) layer to develop color. It is also possible to install a spacer layer to control the time it takes.

Each spacer layer contains a polymeric substance as an essential component.

Examples of polymeric substances include polyvinyl alcohol,
Natural, semi-synthetic, or synthetic water-soluble polymers such as polyacrylamide, carboxymethyl cellulose, methyl cellulose, hydroxyethyl cellulose, gelatin, casein, starch derivatives, styrene rubber, tadiene rubber latex, methyl methacrylate-butadiene-lava latex, chloroprene rubber latex Synthetic rubber latexes, modified latexes, etc., synthetic resin dispersions obtained by emulsion polymerization of various unsaturated monomers alone or in the coexistence of two or more, such as various acrylic-based Dispersions of homopolymers and copolymers of Yukino, Ma, etc. (e.g., styrene-butyl 7-butyl polymer emulsion, acrylonitro-ethyl acrylate-butyl acrylate copolymer emulsion, styrene -Ethyl methacrylate copolymer, etc.), etc.), etc.).

Ko?纺）97i! , , may be formed by forming two or more layers containing hydrophobic compounds, each having a predetermined melting point, without mixing with each other.

When two or more types of layers are formed in this way, they may be arranged in the order of the melting points of the hydrophobic compounds, or they may be formed as appropriate depending on the design of the label.

The above layer (A) is a part that indicates whether the article to which this label is applied has been controlled to a desired storage temperature.

Next, the layer (B) is a part where the label of the present invention indicates that the microcapsules are ruptured under the application conditions and the temperature control function is activated.

This layer (B) can be formed by laminating the electron-donating pressure-sensitive dye, the non-volatile organic solvent containing the microcapsule, and the electron-accepting lightening agent as separate layers, or by laminating both of them. They may be mixed to form one layer. Usually formed as a mixed layer.

To form such a layer, prepare a monochrome printing ink and print it onto a support.

1. What is the non-volatile organic solvent used for this? Aromatic hydrocarbons, such as phenylxylylethane and diisopropylnaphthalene, generally have a melting point below the label storage temperature.

The monofilament type copying ink contains as essential components microcapsules of the above-mentioned electron-donating pressure-sensitive dye in a non-volatile solvent and (an aqueous suspension thereof) a solid acid color developer.1. If necessary, various organic or inorganic pigments, stay 2 resin materials, aqueous solution or water dispersion adhesives, surfactants, viscosity modifiers, etc. are added to make water-based inks, and screen printing, By printing methods such as funkin printing and gravure printing,
Printed on a support. Alternatively, it is also included in the embodiment of the present invention to print on the support as an oil-based ink containing the microphone 9 capsule and a solid acid color developer as essential components, or as an ultraviolet curable ink.・ 5'1 The label retaining such essential components further has a protective layer formed thereon if necessary, and an adhesive layer (8) and release paper (
9) Providing 6, □, (1 action and effect), ・1 The storage temperature control label of the present invention utilizes an irreversible coloring system and is a more practical label.

. ,・Sunawaji1. The system used in the present invention is colorless to light colored when the product is below a predetermined temperature that should be controlled.1. When the temperature exceeds a predetermined temperature, a color develops to notify the management status. ,・,.

When this label is applied to an article, the microcapsules are ruptured to achieve the above-mentioned effect.

However, if the temperature is below a certain temperature, the Y microcapsule will not develop color even if it is torn, so a means to indicate that the label is in operation is required. □′Pa:゛1
].

1. The label of the present invention utilizes an acid-base coloring system as a means for this purpose.

The function of the label of the present invention will be explained with reference to the drawings.

Figure 1 shows an example of the label of the present invention.
The part that shows "temperature control" (1) and the part that shows "temperature control" (2)
), (3) O, and (4) are all uncolored and white.・′ 5 ・,2.
'Figure 2 shows the state immediately after the microcapsules are ruptured under intracorporeal conditions.

That is, in this state, part (1) immediately develops color, indicating that the microcapsule has been destroyed, and (2)
, (3) and (4) also indicate that the microcapsules were ruptured and put into operation.

Figure 3 shows that parts (2), (3), and (4) are hydrophobic organic compounds with different melting points, and part (2), which has the lowest melting point, has a melting point of the hydrophobic organic compound during storage. (
It shows that the color developed due to melting and diffusion at different temperatures. (2),' (3) and (4) If part (3) is the upper limit storage temperature, the temperature reached (2), but it can be seen that it was still managed at the desired temperature. Further, if the outside of (4), where the color development temperature is higher than the storage temperature, develops color, this indicates that the article was not stored under the desired care. According to the label, it was confirmed that the microcapsules were completely broken, and it was confirmed that the warm finger point part was definitely in operation. In other words, this invention provides a useful and easy-to-use label that is designed to be suitable for actual use.・・・
・□, (Example) □ The present invention will be explained in detail below using Examples.

Example A synthetic paper based on polyethylene terephthalate (Nisshinbo Peach Coat WE-110) was coated with an aqueous coating solution having the following composition (used as a 65% aqueous dispersion): solid weight part calcined kaolin 70 ::::, ); 7? ,, total acid sorter salt) 1
Binder used as an aqueous solution - oxidized starch
7〃、MSBR latex filtration Water collecting liquid and color developer used
, 6〃.

Arrow color developer '2.5-') - cyclohexylcarbonyl
The color developer was coated and dried to obtain a color developer-coated sheet.

An acrylic emulsion (solid content: 45%) containing acrylonitrile-ru-styrene ethyl acrylate as the main component was diluted to 2'0'%, and an air knife coater was used on a developer-coated sheet to give a dry coating amount of 2. , B9/m, and dried, and a smooth layer made of a polymeric material was provided on top of the developer layer.

: Next, apply acrylic emulsion Z-based adhesive 1 to a 70 g/mm silicone-treated glassine release plate to a thickness of 5 μm and attach the dried adhesive surface to the above-mentioned coating and soge layer grip part. (laminate) and the original material for printing was placed in a barrel. □ ″) □Next, aqueous ink having the following composition (solid content ゛□4゛5)%
, viscosity 80'00μS) was created.゛・□・ ,・M
SBR latex ゛ '15 Sodium alginate salt. ,,,,−,,,,,2,
, I trime 7-rubenzyl ammonium 'QfJ,
+) Do, 2,, ″: Microcapsule k, ・ ・・, 1 Example-1
Pattern printing (,) was performed using a screen plate in the same manner as above. , ・□Pa.

The dry coating amount of the pattern printed area was 12 g/ba.

　・Pa　　・　.

At another position, 3-diethylamino-6-chloro-7
, -Screen an aqueous ink whose main components are melamine resin membrane microcapsules of fe-nylxylylethane in which 5% by weight of methyl fluorane is dissolved and a microparticle dispersion of a 1-phenylphenonyl-formaldehyde polymer. Pattern printing (b) dry coating amount was applied using a printing plate.

Furthermore, the upper layer is polyvinylidene chloride latex.
Dry coating on the entire surface (dry coating amount is 1.011/rn'')
) to create a protective layer.・In this way, we applied two types of screen printing and cut out the sheet with the protective layer to create a storage temperature control label [
B.]. `` ・The label of this example undergoes a microcab bending operation and gradually becomes irreversibly discolored at a temperature of 7°C or higher.''.

”...This example shows how to use uberu.

This example label was passed through an autolabeler (automatic label pasting machine) equipped with a stamping machine that destroyed the capsules with roll pressure.
The microcapsules on the label are destroyed by a linear pressure of 50 kg/cIn at .degree.

The pattern printed portion (b) rapidly turns black, indicating that the label function is operating. After 5 minutes after pasting it on refrigerated food with a labeler, it is placed in a refrigerator room controlled at 100°C.
Store food. At this point, the pattern printed portion (b) is colored black, but the pattern printed portion (a) is not colored at all.

After storing at 0℃ for 24 hours (at this point, the pattern printed part (,) does not develop color at all), the labeled food was moved to a room with a temperature of 10℃, and color started to develop after 15 minutes. After 6 hours, the color turned deep blue.

Similarly, when a food product with the label of the present application was stored at 0°C for 24 hours and then moved to a room at a temperature of 15°C, it started to develop color after 10 minutes, and turned dark blue after 6 hours. Ta.

The label of the present application has a pattern printed part (b), so that a mark indicating that the temperature control function is activated when the capsule is broken appears, and the desired temperature control function that indicates the temperature history of the article is achieved. Becomes a label.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram for explaining the principle of the label of the present invention. In FIG. 1, each symbol is as follows. 1 is the printed part of layer (B). 2, 6, and 4 are printed parts of the prison layer, and the melting points of the hydrophobic organic compounds used in the order of 2, 3, and 4 are higher. 5 is a label printed with 1, 2.3 and 4. 11 indicates that 1 was colored. 12 indicates that 2 was colored.

Claims (1)

[Claims] 1) On the support, (A) microcapsules containing a hydrophobic organic compound having an arbitrary melting point, a methine dye precursor, and an oxidizing material as essential components, or (
b) a holding layer containing microcapsules containing a hydrophobic organic compound having an arbitrary melting point in which a methine dye precursor is dissolved and an oxidizing material as one or more layers;
A storage temperature control label comprising a retention layer containing microcapsules of a non-volatile organic solvent containing an electron-donating pressure-sensitive dye as an essential component and an electron-accepting color developer as one or more layers.