JP3188514B2 - Synthetic paper with improved tearability and aviation tag using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic paper excellent in tear strength and printing characteristics, and an aeronautical tag using the same.

[0002]

2. Description of the Related Art Conventionally, synthetic paper made of a stretched thermoplastic resin film containing an inorganic fine powder (JP-B-46-4).
0794, Japanese Patent Publication No. 54-31032)
Since it has fine voids (hollows), is lightweight, and has excellent printability, it is used for art paper, thermal recording paper, bags, thermal transfer recording paper, signboards, and the like. On the other hand, airlines attach a tag to each baggage to be inspected, and the tag has the airline's name or symbol, baggage destination, route route, baggage identification number, flight number, etc. printed on it. Manage luggage according to matters. Regarding these management systems, see, for example, Japanese Patent Application Laid-Open No. 50-50896.
No., Japanese Utility Model Application Laid-open No. 60-19073, Japanese Utility Model Application Laid-Open No. 63-1920
No. 75, No. 62-53481, No. 62-12
Various methods described in JP-A-3681 and JP-A-1-231083 are known. Recently, the number of overseas travelers has increased rapidly, and the accuracy and speed of baggage management at airports has become a major issue. Therefore, baggage using read / record (thermal, thermal transfer, laser print, etc.) methods Management is taking root. For these tags, waterproof synthetic paper or coated paper should be used.
No. 93) is known, and such tags are already in practical use.

[0003]

An aeronautical tag using a synthetic paper having fine cavities made of a stretched and oriented film of an inorganic fine powder thermoplastic resin has a small cavity inside the film. Excellent in printing characteristics and printing characteristics. Also, strength is superior to coated paper. However, airlines have to move and organize a lot of luggage such as trunks, suitcases, souvenir boxes, etc. within a limited time, so that those who work can remove air tags while handling luggage. It often moves by pulling. In such an aerial tag using synthetic paper stretch-oriented and having fine cavities, even a small scratch on one of the elongated aeronautical tags can be easily torn from there, causing the entire aerial tag to break. There was a drawback that it came off from the luggage. Also, in the case of an aerial tag using the coated paper, the problem is further increased since the aerial tag using the synthetic paper has a property that the strength is weaker and easier to tear than in the case of an aerial tag using the synthetic paper. Had the disadvantages of Therefore, in the aerial tag using the synthetic paper, even if it is excellent in accuracy and speed of moving and organizing the luggage, if it is torn off and detached from the luggage, it will cause confusion of the luggage, so Since the function is impaired, there is a demand for the development of an aeronautical tag having excellent tear strength, particularly, excellent tear strength in the lateral direction. On the other hand, also in the use of synthetic paper such as bags and standing signs, the appearance of synthetic paper having excellent tear resistance has been desired.

[0004]

[Means for Solving the Problems]

[Summary of the Invention] The present inventors have made intensive studies in view of the above problems, and as a result, have found that the total thickness of the synthetic paper (A) is 10 to 6 times.
0% wall thickness and 80 lateral Elmendorf tear strength
g of a thermoplastic resin uniaxially stretched film (A ² ) having substantially no fine cavities of at least g, and a laminate of a thermoplastic resin biaxially stretched film (A ¹ ) containing fine cavities. The present invention has been completed based on the finding that synthetic paper having excellent printing characteristics can be obtained. That is, the synthetic paper having improved tearability of the present invention has a biaxially stretched film (A ¹ ) of a thermoplastic resin containing fine voids containing 5 to 60% by weight of an inorganic fine powder, and has a transverse Elmendorf tear strength. A synthetic paper having a structure in which a thermoplastic resin film (A ² ) having substantially no microvoids stretched in a uniaxial stretching direction of 80 g or more and laminated through an adhesive is stretched in the uniaxial direction. The thickness of the thermoplastic resin film (A ² ) is 10 to 60% of the total thickness of the synthetic paper (A), and the stretching direction of the latter uniaxially stretched thermoplastic resin film (A ² ) is the former. The biaxially stretched film (A ¹ ) is characterized by being adhered by an adhesive so as to be orthogonal to the direction in which the stretch ratio is high. The aerial tag according to another aspect of the present invention comprises a recording layer (II) / a support layer (A) / an adhesive layer (B) /
In an aerial tag composed of a release paper layer (C) and managed by a bar code, the support layer (A) is a biaxially stretched thermoplastic resin film containing fine voids containing 5 to 60% by weight of an inorganic fine powder. A structure in which (A ¹ ) and a thermoplastic resin film (A ² ) having substantially no unidirectionally stretched microvoids having a transverse Elmendorf tear strength of 80 g or more are laminated via an adhesive. The thickness of the uniaxially stretched thermoplastic resin film (A ² ) is 10 to 60% of the total thickness of the support layer (A), and the latter is a uniaxially stretched thermoplastic resin film (A ² ). ² ) It is adhered by an adhesive so that the stretching direction of the former biaxially stretched film (A ¹ ) is orthogonal to the direction of higher stretching ratio of the former, and is attached to the thermoplastic resin biaxially stretched film (A ¹ ) side. The recording layer (I It is characterized in that a bar code is attached to I). Further, the aerial tag according to another invention of the present invention comprises a recording layer (II) / a support layer (A).
In an aeronautical tag composed of a pressure-sensitive adhesive layer (B) and a release paper layer (C) and managed by a bar code, the support layer (A) contains fine voids containing 5 to 60% by weight of an inorganic fine powder. on the surface of the thermoplastic resin biaxially oriented film (a ^1), substantially free from, whether or fine voids fine void content is less thermoplastic resin biaxially oriented film of the fine void-containing (a ¹⁾ a thermoplastic resin biaxially oriented film (a ³⁾ a thermoplastic resin biaxially oriented film having a laminated structure of (a ^4), the by fine hollow stretching Elmendorf tear strength in the transverse direction in the uniaxial stretching direction above 80g The thermoplastic resin film (A ² ), which has substantially no thermoplastic resin film (A ² ), is laminated via an adhesive, and the thickness of the uniaxially stretched thermoplastic resin film (A ² ) is set to the thickness of the support layer (A )
10 to 60% of the total wall thickness, and the stretching direction of the latter uniaxially stretched thermoplastic resin film (A ² ) is orthogonal to the direction of higher stretching ratio of the former biaxially stretched film (A ¹ ). And a recording layer (I) provided on the thermoplastic resin biaxially stretched film (A ³ ) side.
It is characterized in that a bar code is attached to I).

[Specific description of the invention] [I] Aeronautical tag The aeronautical tag of the present invention comprises a support layer as shown in FIG.
(A) / pressure-sensitive adhesive layer (B) / release paper layer (C), a color recording layer for printing a barcode on the surface of the base layer (I) on the support layer (A) side ( II) It is basically formed by providing (a heat-sensitive recording layer, a thermal transfer receiving layer or a coating layer for laser printing).

[II] Base layer (I) (1) Support layer (A) Support layer (A) used in the aviation tag of the present invention
As shown in FIG. 1 and FIG. 2, the stretched thermoplastic resin film (A ¹ ) containing fine cavities, or the fine cavities on the surface of the stretched thermoplastic resin film (A ¹ ) as compared with (A ¹ ) A biaxially stretched thermoplastic resin film (A ⁴ ) laminated with a biaxially stretched thermoplastic resin film (A ³ ) having a small content or having substantially no fine voids, and a transverse Elmendorf tear strength (JIS) -P8116) is a laminate of a thermoplastic resin film (A ² ) substantially 80 g or more, preferably 100 g or more and having substantially no fine voids stretched in a uniaxial stretching direction via an adhesive. 10% to 60% the thickness of the wall thickness of the entire support layer (a) of the thermoplastic resin uniaxially stretched film ^{(a 2),} preferably 15 to
Adhesive so that the stretching direction of the uniaxially stretched thermoplastic resin film (A ² ) is orthogonal to the direction of higher stretching ratio of the biaxially stretched film (A ¹ ). Is affixed. With such a laminate, the synthetic paper of the present invention with improved tearability can be obtained. Such synthetic paper is difficult to be torn even when used as a bag or a signboard, even when it is fixed with a thumbtack or a nail. Therefore, this support layer (A)
It can be used alone as a synthetic paper with improved tearability, or can be used as an aerial tag by further laminating a recording layer (II) or the like. When the recording layer (II) described below is laminated, the recording layer (A) is laminated on the side of the above-described support layer (A) on the side of the thermoplastic resin biaxially stretched film (A ¹ ) containing fine voids.

[0007] As (a) fine voids-containing thermoplastic resin biaxially oriented film (A ¹⁾ Structure The support layer (A) fine voids-containing heat used in thermoplastic resin biaxially oriented film (A ^1), for example , Tokubo Sho5
4-31032, JP-A-2-70479, JP-A-3
A biaxially stretched thermoplastic resin film containing fine voids disclosed in U.S. Pat. No. 2,216,386 can be used.
Specifically, a biaxially stretched film monolayer film of a thermoplastic resin containing 5 to 60% by weight, preferably 10 to 45% by weight of an inorganic fine powder, or the biaxially stretched film
(A ¹ ) has a structure in which a thermoplastic resin biaxially stretched film (A ³ ) having a small content of fine voids as compared to (A ¹ ) or having substantially no fine voids is laminated, The different film (A ³ ) to be laminated is a biaxially stretched film of a thermoplastic resin containing 0 to 50% by weight, preferably 0 to 45% by weight of an inorganic fine powder. The feeling can be adjusted, and the printing characteristics can be changed. Further, this stretched film (A ³ ) may be laminated on the surface or both sides of a thermoplastic resin biaxially stretched film (A ¹ ) containing fine voids. The fine void content of the thermoplastic resin biaxially stretched film (A ¹ ) containing fine voids means that the porosity calculated by the following formula is 10 to 60%, preferably 15 to 50%. In addition, the thermoplastic resin biaxially stretched film to be laminated (A ³ )
Has a porosity calculated from the above equation of 0 to 50.
%, Preferably 0 to 45%, and has a porosity smaller than that of the biaxially stretched film (A ¹ ).

[0008] surface of the thermoplastic resin biaxially oriented film of fine voids-containing Material thermoplastic resin wherein the support layer (A) substrate layer (A ¹⁾ (a ¹⁾ and the substrate layer (a ¹⁾ Alternatively, a polyolefin resin is usually used as the thermoplastic resin used as the paper-like layer (a ² ) on the front and back surfaces. Examples of such a polyolefin resin include polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, propylene-butene-1 copolymer, poly (4-methylpentene-1),
Polystyrene and the like can be mentioned. Of course, other than such a polyolefin resin, polyamide, polyethylene terephthalate, other thermoplastic resins such as polybutylene terephthalate can also be used,
From the viewpoint of cost, it is preferable to use a polyolefin-based resin, particularly a polypropylene-based resin. Inorganic fine powder The support layer (A) of the microvoided thermoplastic resin biaxially stretched film (A ¹ ) or the thermoplastic resin biaxially stretched film (A ¹ ) on the surface of (A ¹ ) Inorganic fine particles used in a thermoplastic resin biaxially stretched film (A ⁴ ) having a structure in which a thermoplastic resin biaxially stretched film (A ³ ) having a small fine void content or substantially no fine voids is laminated. Examples of the powder include those having an average particle diameter of 10 μm or less, preferably 4 μm or less, such as calcium carbonate, calcined clay, diatomaceous earth, talc, titanium oxide, barium sulfate, aluminum sulfate, and silica.

[0009] Thermoplastic resin biaxially oriented film having such a fine void-containing multilayer structure fabrication of fine voids-containing thermoplastic resin biaxially oriented film (A ¹⁾ (A ¹⁾ and (A ^4), for example, It can be produced by the following method. a) 5 to 60% by weight of inorganic fine powder, preferably 10 to
At a temperature lower than the melting point of the thermoplastic resin, a thermoplastic resin film containing 45% by weight is simultaneously or sequentially 3 to 10 times, preferably 4 to 7 times in the vertical direction, and 3 to 15 times in the horizontal direction.
The film is biaxially stretched 2 times, preferably 4 to 12 times to obtain a stretched thermoplastic resin film (A ¹ ) containing fine voids. b) 5 to 60% by weight of inorganic fine powder, preferably 10 to
A thermoplastic resin film (A ¹ ) containing 45% by weight, and 0 to 50% by weight, preferably 0% by weight, of inorganic fine powder on both surfaces thereof;
After adhering a thermoplastic resin film (A ³ ) containing up to 45% by weight, simultaneously or sequentially at a temperature lower than the melting point of the thermoplastic resin, 3 to 10 times, preferably 4 to 7 times.
Biaxially stretched thermoplastic resin film containing fine cavities by biaxially stretching 3 to 15 times, preferably 4 to 12 times in the transverse direction
(A ⁴ ) is obtained.

(B) Structure of thermoplastic resin film (A ² ) having substantially no fine voids The stretched thermoplastic resin film containing fine voids (A ¹ )
Or heat comprising a structure obtained by stacking substantially no thermoplastic resin biaxially oriented film (A ³⁾ whether or fine voids fine void content is smaller than that (A ¹⁾ on the surface of (A ¹⁾ The thermoplastic resin film (A ² ) having substantially no uniaxially stretched fine cavities laminated on the thermoplastic resin biaxially stretched film (A ⁴ ) has a transverse Elmendorf tear strength (JI).
SP-8116) is 80 g or more, preferably 100 g
That's all. When the Elmendorf tear strength in the lateral direction is less than 80 g, sufficient practical tear strength cannot be obtained as an airline tag or a signboard, so that the practicality is significantly reduced. The thermoplastic resin uniaxially stretched film (A ² ) having substantially no fine voids contains 3% by weight or less of inorganic fine powder, preferably a thermoplastic resin film containing no inorganic fine powder, having a melting point lower than the melting point of the thermoplastic resin. It is also obtained by stretching at a low temperature in the longitudinal or transverse direction 3 to 15 times, preferably 4 to 12 times. The uniaxially stretched thermoplastic resin film (A ² ) is stretched and oriented, so that the strength in the stretching direction increases, and moreover, the thermoplastic resin film
(A ² ) contains no inorganic fine powder, or
Since it contains only a very small amount, the film does not substantially contain microcavities even after uniaxial stretching, so that the above-mentioned transverse Elmendorf tear strength shows a large value. Further, the thickness of the thermoplastic resin film (A ² ) substantially not containing the fine cavities, the thickness of the support layer
(A) 10 to 60% of the total thickness, preferably 15 to 50%
It is important that the layers are stacked so as to occupy the percentage of%. If the thickness of the thermoplastic resin uniaxially stretched film (A ² ) is 10% or less of the entire support (A), sufficient tear strength as an airline tag cannot be obtained, and the practicability is significantly reduced. On the other hand, if the value is 60% or more, a sufficient tear strength can be obtained, but the printing characteristics deteriorate, which is not preferable.

Material As the thermoplastic resin used for the thermoplastic resin uniaxially stretched film (A ² ) having no fine voids in the support layer (A), a polyolefin resin is generally used.
Examples of such polyolefin-based resins include high-density polyethylene, straight-line polyethylene, polypropylene, ethylene-propylene copolymer, and propylene-butene-1.
Copolymers, poly (4-methylpentene-1), polystyrene and the like can be mentioned. Of course, other thermoplastic resins such as polyamide, polyethylene terephthalate, and polybutylene terephthalate can be used in addition to such a polyolefin resin, but it is preferable to use a polyolefin resin from the viewpoint of cost. Preferred as the thermoplastic resin material used as the uniaxially stretched film is the aforementioned polyolefin-based resin,
More preferably, polyethylene, particularly preferably, high density polyethylene having a density of 0.945 to 0.970 g / cm ³ , and linear linear polyethylene having a density of 0.890 to 0.940 can be used.

[0012] microcavity substantially no thermoplastic resin uniaxially stretched film (A ²⁾ a thermoplastic resin uniaxially stretched film produced extending extension such free microcavity of (A ^2), for example, as shown below It can be manufactured by the method described above. In order to produce a thermoplastic resin uniaxially stretched film (A ² ) containing no fine cavities, the thermoplastic resin film containing no inorganic fine powder is preferably 3% by weight or less, and preferably a thermoplastic resin film containing no fine inorganic powder. The film is stretched 3 to 15 times at a temperature lower than the melting point. Regarding the stretching of the thermoplastic resin, those that are stretched and stretched by a peripheral speed difference between two pairs of rolls, those by a rolling method using rolls,
Stretching by a tenter or stretching by a combination thereof may be used. (c) the product layer is then thereto the thermoplastic resin biaxially oriented film of fine void containing (A ¹ and A ^4), the stretching direction of the uniaxially stretched film (A ²⁾ The uniaxially stretched film (A ²⁾ Are adhered by an adhesive so as to be orthogonal to the direction in which the stretching ratio of the biaxially stretched film (A ¹ ) is high, and the thermoplastic resin biaxially stretched film (A ¹ and A ⁴ ) containing fine cavities and the uniaxially stretched film (A ¹ ) a ²⁾ a support layer laminated through an adhesive to obtain a (a).

(2) Pressure-sensitive adhesive layer (B) As the pressure-sensitive adhesive layer, various pressure-sensitive adhesives can be used, but it is preferable to use the following pressure-sensitive pressure-sensitive adhesive. (a) Pressure Sensitive Adhesive As the pressure sensitive adhesive, polyisobutylene rubber, butyl rubber, a rubber-based adhesive obtained by dissolving a mixture thereof in an organic solvent such as benzene, toluene, xylene, and hexane, or a rubber-based adhesive What blended tackifiers such as rosin ester of abiethylene acid, terpene / phenol copolymer, terpene / indene copolymer,
Alternatively, an acrylic copolymer having a glass transition point of −20 ° C. or lower, such as a 2-ethylhexyl acrylate / n-butyl acrylate copolymer or a 2-ethylhexyl acrylate / ethyl acrylate / methyl methacrylate copolymer, is used as an organic solvent. And an acrylic adhesive dissolved in the above. The coating amount of the pressure sensitive adhesive, 3~40g / m ² by solid content, preferably 10 to 30 g / m ^2. The thickness of the pressure-sensitive adhesive after coating and drying is generally 10 to 50 μm in the case of an acrylic adhesive, and 80 to 150 μm in the case of a rubber adhesive.

(B) Anchor coating agent It is preferable to apply an anchor coating agent before applying the pressure-sensitive adhesive. As the anchor coating agent, polyurethane, polyisocyanate / polyether polyol, polyisocyanate / polyethyleneimine, alkyl titanate and the like can be used, and these are generally dissolved in an organic solvent such as methanol, water, ethyl acetate, toluene and hexane. Used. The amount of the anchor coating agent applied to the substrate is 0.1% in terms of the solid content after application and drying.
01~5g / m ^2, preferably from 0.05 to 2 g / m ^2.

(3) Release paper layer (C) The release paper layer is formed by forming a release resin layer on the back side of release paper, and the release resin layer is formed of a release resin such as silicone resin or polyethylene wax. The resin can be formed by dissolving the conductive resin with the organic solvent or the like, and then directly applying and drying the resin on release paper. The coating amount of the release resin layer is 0.5 to 10 g / solid as the solid content after coating and drying.
m ² , preferably 1 to 8 g / m ² .

[III] Recording Layer (II) The recording layer laminated on the paper layer of the support layer (A) is:
It can be formed by applying any coating agent that can provide a barcode and that provides a heat-sensitive recording layer having coloring properties, a coating layer for laser printing, or a thermal transfer receiving layer. (1) Thermal recording layer The thermal recording layer is formed by applying and drying a coating solution containing a color former and a color former. The coloring agent and the coloring agent used in the heat-sensitive recording layer include the following, and any combination of the coloring agent and the coloring agent may be used as long as they are in contact with each other to cause a coloring reaction. It is also possible to use, for example, a combination of a colorless or pale white basic dye and an inorganic or organic acidic substance, or a higher fatty acid metal salt such as ferric stearate and a phenol such as gallic acid, and the like. Further, a combination of a diazonium compound with a coupler and a basic substance can be used.

(A) Color former Various types of colorless or light-colored basic dyes known as colorants in the heat-sensitive recording layer are known. For example, 3,3-bis (p-dimethylaminophenyl)- 6-dimethylaminophthalide, 3,3-bis (p-dimethylaminophenyl) phthalide, 3- (p-dimethylaminophenyl) -3- (1,2-dimethylindol-3-yl) phthalide, 3- ( p-dimethylaminophenyl)-
3- (2-methylindol-3-yl) phthalide,
3,3-bis (1,2-dimethylindol-3-yl) -5-dimethylaminophthalide, 3,3-bis (1,2-dimethylindol-3-yl) -6-dimethylaminophthalide, 3,3-bis (9-ethylcarbazol-3-yl) -6-dimethylaminophthalide,
3,3-bis (2-phenylindol-3-yl)-
6-dimethylaminophthalide, 3-p-dimethylaminophenyl-3- (1-methylpyrrol-3-yl) -6
Triallylmethane dyes such as -dimethylaminophthalide, 4,4'-bis-dimethylaminobenzhydryl benzyl ether, N-halophenyl-leuco auramine, N-2,4,5-trichlorophenyl leuco auramine Thiazine dyes such as diphenylmethane dyes, benzoyl leucomethylene blue and p-nitrobenzoyl leucomethylene blue; 3-methyl-spiro-dinaphthopyran; 3-ethyl-spiro-dinaphthopyran;
Phenyl-spiro-dinaphthopyran, 3-benzyl-spiro-dinaphthopyran, 3-methyl-naphtho- (6'-
Spiro dyes such as methoxybenzo) spiropyran and 3-propyl-spiro-dibenzopyran; lactam dyes such as rhodamine-B anilinolactam, rhodamine (p-nitroanilino) lactam and rhodamine (o-chloroanilino) lactam; 3-dimethyl Amino-7-methoxyfluoran, 3-diethylamino-6-methoxyfluoran, 3-diethylamino-7-methoxyfluoran,
3-diethylamino-7-chlorofluorane, 3-diethylamino-6-methyl-7-chlorofluoran, 3-
Diethylamino-6,7-dimethylfluoran, 3-
(N-ethyl-p-toluidino) -7-methylfluorane, 3-diethylamino-7-N-acetyl-N-methylaminofluoran, 3-diethylamino-7-N-methylaminofluoran, 3-diethylamino- 7-dibenzylaminofluoran, 3-diethylamino-7-N
-Methyl-N-benzylaminofluoran, 3-diethylamino-7-N-chloroethyl-N-methylaminofluoran, 3-diethylamino-7-N-diethylaminofluoran, 3- (N-ethyl-p-toluidino) -
6-methyl-7-phenylaminofluoran, 3- (N
-Cyclopentyl-N-ethylamino) -6-methyl-
7-anilinofluoran, 3- (N-ethyl-p-toluidino) -6-methyl-7- (p-toluidino) fluoran, 3-diethylamino-6-methyl-7-phenylaminofluoran, 3-diethylamino -7- (2-carbomethoxyphenylamino) fluoran, 3- (N-
Ethyl-N-isoamylamino) -6-methyl-7-phenylaminofluoran, 3- (N-cyclohexyl-
N-methylamino) -6-methyl-7-phenylaminofluoran, 3-piperidino-6-methyl-7-phenylaminofluoran, 3-piperidino-6-methyl-7
-Phenylsiminofluoran, 3-diethylamino-6
-Methyl-7-xylidinofluoran, 3-diethylamino-7- (o-chlorophenylamino) fluoran,
3-dibutylamino-7- (o-chlorophenylamino) fluoran, 3-pyrrolidino-6-methyl-7-p
-Butylphenylaminofluoran, 3-N-methyl-
N-tetrahydrofurfurylamino-6-methyl-7-
Fluoran dyes such as anilinofluoran and 3-N-ethyl-N-tetrahydrofurfurylamino-6-methyl-7-anilinofluoran;

(B) Coloring agent As the inorganic or organic acidic substance which forms a color upon contact with the basic dye, various substances are known, for example, activated clay, acid clay, attapulgite as inorganic acidic substances. , Bentonite, colloidal silica, aluminum silicate and the like are exemplified, and as an organic acidic substance, 4-tert-butylphenol, 4-hydroxydiphenoxide, α-naphthol, β-naphthol, 4-hydroxyacetophenol, 4-tert-octylcatechol, 2,2'-dihydroxydiphenol, 2,2'-methylenebis (4
-Methyl-6-tert-isobutylphenol), 4,
4'-isopropylidenebis (2-tert-butylphenol), 4,4'-sec-butylidenediphenol, 4
-Phenylphenol, 4,4'-isopropylidene diphenol (bisphenol A), 2,2'-methylenebis (4-chlorophenol), hydroquinone,
Phenolic compounds such as 4'-cyclohexylidenediphenol, benzyl 4-hydroxybenzoate, dimethyl 4-hydroxyphthalate, hydroquinone monobenzyl ether, novolak type phenolic resin, phenolic polymer, benzoic acid, p-tert-butylbenzoic acid Acid, trichlorobenzoic acid, terephthalic acid, 3-sec-butyl-4-
Hydroxybenzoic acid, 3-cyclohexyl-4-hydroxybenzoic acid, 3,5-dimethyl-4-hydroxybenzoic acid, salicylic acid, 3-isopropylsalicylic acid, 3-
tert-butylsalicylic acid, 3-benzylsalicylic acid, 3
-(Α-methylbenzyl) salicylic acid, 3-chloro-5
-(Α-methylbenzyl) salicylic acid, 3,5-di-te
rt-butylsalicylic acid, 3-phenyl-5- (α, α-
(Dimethylbenzyl) salicylic acid, aromatic carboxylic acids such as 3,5-di-α-methylbenzylsalicylic acid, and the phenolic compound or aromatic carboxylic acid and zinc,
Examples thereof include salts with polyvalent metals such as magnesium, aluminum, calcium, titanium, manganese, tin, and nickel.

(C) Amount ratio The basic dye (color former) and the color former may be used in combination of two or more, if necessary. The use ratio of the basic dye and the colorant is appropriately selected according to the type of the basic dye and the colorant used, and is not particularly limited, but is generally 1 part by weight of the basic dye. The coloring agent is used in an amount of 1 to 20 parts by weight, preferably about 2 to 10 parts by weight.

(D) Coating liquid A coating liquid containing these substances generally uses water as a dispersion medium,
It is prepared by uniformly or separately dispersing the dye (color former) and the color former with a stirring / pulverizer such as a ball mill, an attritor, and a sand mill. In the coating liquid, starches, hydroxyethyl cellulose, methyl cellulose,
Carboxymethyl cellulose, gelatin, casein, gum arabic, polyvinyl alcohol, acetoacetyl group-modified polyvinyl alcohol, diisobutylene / maleic anhydride copolymer salt, styrene / maleic anhydride copolymer salt, ethylene / acrylic acid copolymer salt, A binder such as a styrene-butadiene copolymer emulsion, a urea resin, a melamine resin, an amide resin, or an amino resin is contained in an amount of 2 to 40% by weight, preferably 5 to 25% by weight of the total solids.

(E) Other compounding agents Further, various auxiliaries can be added to the coating liquid, if necessary, for example, sodium dioctyl sulfosuccinate, sodium dodecylbenzene sulfonate, lauryl alcohol sulfate Dispersants such as esters and sodium salts, metal salts of fatty acids, ultraviolet absorbers such as benzophenone,
In addition, an antifoaming agent, a fluorescent dye, a coloring dye, a conductive substance, and the like are appropriately added. If necessary, zinc stearate, calcium stearate, polyethylene wax, carnauba wax, paraffin wax, waxes such as ester wax, stearic acid amide, methylene bisamide stearate, oleic amide, palmitic amide,
Fatty acid amides such as coconut fatty acid amide, 2,2'-methylenebis (4-methyl-6-tert-butylphenol), 1,1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) Hindered phenols such as butane, 2- (2'-hydroxy-5'-methylphenyl) benzotriazole, 2-hydroxy-4-
UV absorbers such as benzyloxybenzophenone,
2-di (3-methylphenoxy) ethane, 1,2-diphenoxyethane, 1-phenoxy-2- (4-methylphenoxy) ethane, dimethyl terephthalate, dibutyl terephthalate, dibenzyl terephthalate, p -Benzyl-biphenyl, 1,4-dimethoxynaphthalene, 1,4-diethoxynaphthalene, 1-
Esters such as hydroxynaphthoic acid phenyl ester, and various known thermoplastic substances and inorganic pigments such as kaolin, clay, talc, calcium carbonate, calcined clay, titanium oxide, diatomaceous earth, fine anhydrous silica, and activated clay are added. You can also.

(2) Thermal Transfer Receiving Layer The thermal transfer receiving layer is an image receiving layer capable of receiving a transfer ink transferred from the thermal transfer sheet and forming an image when heated by being superposed on the thermal transfer sheet. Layer. Image-receiving layer Such an image-receiving layer is formed by applying a coating solution for forming an image-receiving layer, drying the coating solution, and scattering the solvent.
Examples of the resin constituting such an image receiving layer forming coating liquid include an oligoester acrylate resin, a saturated polyester resin, a vinyl chloride / vinyl acetate copolymer, and an acrylic ester / styrene copolymer epoxy acrylate resin. These resins are dissolved in toluene, xylene, methyl ethyl ketone, cyclohexanone, or the like, and used as a coating liquid. The coating liquid may contain an ultraviolet absorber and / or a light stabilizer to enhance light resistance.

UV absorbers Examples of UV absorbers include 2- (2'-hydroxy-3,3'-di-tert-butylphenyl) -5-chlorobenzotriazole and 2- (2-hydroxy-3,5 -T
-Amylphenyl) -2H-benzotriazole, 2-
(2'-hydroxy-3'-t-butyl-5'-methylphenyl) -5-chlorobenzotriazole, 2- (2
'-Hydroxy-3', 5'-t-butylphenyl)-
Benzotriazole, 2- (2′-hydroxy-3 ′,
5'-di-t-amylphenyl) -benzotriazole and the like.

Light stabilizers Light stabilizers include, for example, distearylpentaerythritol diphosphite, bis (2,4-di-t-butylphenyl) pentaerythritol diphosphite,
Dinonylphenylpentaerythritol diphosphite, cyclic neopentanetetraylbis (octadecylphosphite), tris (nonylphenyl) phosphite, 1- [2- [3- (3,5-di-t-butyl-4) -Hydroxyphenyl) propionyloxy]
-2,2,6,6-tetramethylpiperidine and the like. The addition amount of these ultraviolet absorbers and light stabilizers is 0.05 to 10 parts by weight, preferably 0.5 to 3 parts by weight, based on 100 parts by weight of the resin constituting the image receiving layer.

Other compounding agents In order to improve the releasability from the thermal transfer sheet when it is superposed on the thermal transfer sheet and heated, a release agent can be contained in the image receiving layer. Such release agents include polyethylene wax, amide wax,
Examples thereof include solid waxes such as tetron powder, fluorine-based and phosphate-based surfactants, and silicone oil. Of these, silicone oil is preferably used. As the silicone oil, an oily oil can be used, but a curable oil is preferably used. Further, in order to improve the whiteness of the image receiving layer to further enhance the sharpness of the transferred image, to provide pencil writing on the surface of the thermal transfer receiving layer, and to prevent retransfer of the transferred image, Can be added with a white pigment. Examples of such white pigments include titanium oxide, zinc oxide, kaolin clay and the like, and these can be used in combination of two or more. Examples of the titanium oxide include anatase-type titanium oxide and rutile-type titanium oxide. Examples of the anatase-type titanium oxide include KA-10, KA-20, and KA.
-15, KA-30, KA-35, KA-60, KA-
80, KA-90 (both manufactured by Titanium Industry Co., Ltd.)
Further, as rutile type titanium oxide, KR-310, K
R-380, KR-460, KR-480 (all manufactured by Titanium Industry Co., Ltd.) and the like can be mentioned. The amount of the white pigment to be added is 5 to 90 parts by weight, preferably 30 to 80 parts by weight, based on 100 parts by weight of the resin constituting the image receiving layer. The thickness of such a thermal transfer receiving layer is generally 0.2 to
It is formed to a thickness of 20 μm, preferably 3 to 15 μm.

Thermal Transfer Sheet Various types of thermal transfer sheets can be used as the thermal transfer sheet used to form an image by transferring the transfer ink to the thermal transfer receiving layer. Specifically, a composition comprising a binder component, a coloring component, and the like as main components, and, if necessary, a softener, a flexible agent, a melting point regulator, a leveling agent, a dispersant, and the like as an additive component. , A polyester film and the like. As specific examples of the main component, well-known waxes such as paraffin wax, carnaupa wax, and ester wax and various low-melting polymers are useful as binder components, and carbon black and various organics are used as coloring components. Inorganic pigments or dyes are useful. Further, a sublimation type ink may be used.

(3) Coating layer for laser printing (a) Coating agent for laser printing For forming a coating layer for laser printing to be applied on the paper layer of the support layer (A) for laser printing. The coating agent basically comprises 80 to 40% by weight of an acrylic urethane resin and 20 to 60% by weight of a filler. The coating composition for laser printing includes an acrylic acid or methacrylic acid (hereinafter simply referred to as "(meth) acrylic acid") ester polymer matrix crosslinked by urethane bonds and a filler dispersed therein. It is.

Acrylic Urethane Resin The acrylic urethane resin is described in JP-B-53-32386.
And Japanese Patent Publication No. 52-73985. Such an acrylic urethane resin is generally obtained by reacting a urethane prepolymer obtained from a polyisocyanate and a polyhydric alcohol with hydroxymono (meth) acrylate. By polymerizing the ethylenic bond of the acrylic urethane resin, a (meth) acrylate polymer crosslinked by the urethane bond is obtained. The above (meth) acrylate polymer is a homopolymer or copolymer of a (meth) acrylate having at least one (preferably one) hydroxyl group in the alcohol portion of the ester. Such a hydroxyl group-containing polymer has a hydroxyl value of 20 to 200, preferably 60 to 130.
belongs to. Here, the hydroxyl value is a value represented by the number of mg of potassium hydroxide required to neutralize acetic acid bonded to a hydroxyl group when 1 g of a sample is acetylated. The (meth) acrylic acid ester giving such a polymer is a monoester of an alcohol compound having at least two (preferably two) hydroxyl groups. Here, the "alcohol compound" is a typical alkanol,
Polyoxyalkylene glycols (alkylene C ₂ ~
But also an C about _3). Specific examples of such (meth) acrylic acid esters include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, di- or poly-ethylene glycol mono (meth) acrylate, and glycerin mono (meth) acrylate. ) Acrylates and the like. From the viewpoint of the balance between hardness, toughness and elasticity of the cured coating agent, the (meth) acrylate polymer is preferably a copolymer. There are various types of monomers that can be copolymerized with the (meth) acrylic acid ester as described above, and any suitable one can be used. Specifically, methyl to cyclohexyl (meth) acrylate, styrene,
Examples thereof include vinyl toluene and vinyl acetate. Instead of producing the copolymer by copolymerizing a hydroxyl group-containing (meth) acrylic ester, the copolymer may be produced by treating a polymer having a group that can be converted to a hydroxyl group to have a hydroxyl group. it can. The polymerization is conveniently performed by solution polymerization. Examples of the polyisocyanate forming the urethane bond unit include 2,6.
-Tolylene diisocyanate, 2,4-tolylene diisocyanate, xylylene diisocyanate, diphenylmethane diisocyanate, 1,6-hexamethylene diisocyanate, and compounds derived from these derivatives and having two or more isocyanate groups in the molecule.
A part of the acrylic urethane resin constituting the (meth) acrylic acid ester polymer matrix crosslinked by such a urethane bond may be replaced with a vinyl chloride / vinyl acetate copolymer.

Fillers The fillers used in the laser printing coating agent include those used in conventional coating agents such as heavy calcium carbonate, calcined clay, titanium oxide, barium sulfate, and diatomaceous earth. Can be.

(B) Coating Amount The coating amount is generally 0.5 to 2 as a solid content after drying.
0 g / m ^2, preferably from 2 to 8 g / m ^2.

[IV] Formation of Recording Layer The recording layer (II) laminated on the support layer (A) can be provided with a bar code 2 and can be a heat-sensitive recording layer having a coloring property by heat, or Laser printing that can be provided with a thermal transfer receiving layer, which can receive a transfer ink transferred from the thermal transfer sheet when heated by being superimposed on the thermal transfer sheet and a bar code with a laser print coating layer It can be formed by applying any one of the application coating layers. Coating A coating liquid containing the heat-sensitive recording layer-forming color former and a color former,
The application of the coating liquid for forming the thermal transfer receiving layer and the coating liquid for forming the coating layer for laser printing is generally applied by means of a brush, a roller, a pad, a spray gun, dipping, or the like so that the solvent used is volatilized or evaporated. It is carried out by drying at an appropriate temperature. Specifically, for example, when the coating is performed by the roller, the support layer of the base layer (I) is rotated by a roll that is rotated while being in contact with a roll that is partially immersed in a storage tank solution that stores a coating solution dissolved in a solvent. (A) It is performed by applying to the side surface.

[V] Management by Bar Code (1) Formation of Bar Code The bar code 2 and the like can be printed on the front side of the base layer (I) by various means such as a printer by computer management. If necessary, printing such as a company name can be used together by various printing methods such as gravure printing, offset printing, flexographic printing, and screen printing.

(2) Attaching the airline tag The management using the airline tag 1 of the present invention is performed, for example, as follows. The aviation tag 1 has its surface 1a
Has a structure as shown in FIG. 3, and the back surface 1b has a structure as shown in FIG. In addition, this airline tag 1
Is composed of three parts: a carriage ticket 3 to be attached to the baggage, a management ticket 4 stored by the airline company, and a voucher 5 stored by the client, and the airline is easily separated between them. A perforation 6 is formed in the recording layer (II), the support layer (A) and the pressure-sensitive adhesive layer (B) of the tag, and a cut 7 is formed in the release paper layer (C). I have. Therefore, the airline company separates such an airline tag 1 into three, passes the portion of the copy ticket 5 stored by the client to the client, and forms the tag on the back surface of one end of the ticket 3 to be attached to the baggage. The release paper (C) of the attached portion 3a is peeled off, and FIG.
After exposing the pressure-sensitive adhesive layer (B) portion formed underneath, insert the carriage ticket 3 into the handle 8a such as the trunk 8 as shown in FIG. The adhesive layer (B) of the sticking portion 3a of the ticket 3 was attached to the surface portion 3b of the carriage ticket 3 at the other end, and formed into a ring shape and attached. The management ticket 4 stored by the airline is stored for management by the airline. However, depending on the case, the management ticket 4 stored by such an airline may not be required by computer management using a bar code, and in that case, it may be omitted.

[0034]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The aerial tag of the present invention will be specifically described below with reference to examples and comparative examples. [I] Evaluation method Evaluation of physical properties in Examples and Comparative Examples was performed by the following methods. Tear strength was measured according to JIS P-8116 using an Elmendorf tear strength tester manufactured by Tozai Seiki Co., Ltd. Notch on one side of the tear test air tag in the vertical and horizontal direction,
The tear was performed at a stretch by hand, and a judgment was made in four stages shown below based on the feel of the hand at the time of tearing and the manner of cutting. ◎: very strong ○: strong △: weak (there is a problem in practical use) ×: very weak

Printing Test (1) Thermal Sensing Type Printing device manufactured by Okura Electric Co., Ltd. (dot density: 8 dots /
mm, printing power: 0.19 W / dot) and printing by changing the printing pulse width.
It was determined visually. ：: Very good ○: Good △: Practical problem ×: Poor (2) Thermal transfer type Printing device manufactured by Okura Electric Co., Ltd. (dot density: 6 dots /
mm, printing power: 0.23 W / dot), printing was performed while changing the printing pulse width.
It was determined visually. ◎: Very good ○: Good △: Practical problem ×: Poor (3) Laser print type Dry type non-impact printer SP of Showa Information Co., Ltd.
Using 8-X (trade name), toner printing was performed, and the readability of the obtained print was visually determined. ◎: Very good ○: Good △: Practical problem ×: Poor

Thumbtack / Nail Suitability A sheet for a display body was fixed to a wooden plywood bulletin board with a thumbtack or a nail and pulled downward by hand, and the degree of the tear was judged by the way of tearing and the feel of the hand. ：: No problem in practical use. Δ: There is a problem in practical use ×: Not practical.

Offset printing properties Toyo Ink Manufacturing Co., Ltd. offset printing ink "TSP"
-400 "(trade name) and Komori Printing Machine Co., Ltd. offset 4 color printing machine, 4 colors (black, blue, red, yellow) on the front side
Flat plate offset printing was performed, and ink transferability and ink adhesion were evaluated by the following methods. (1) Transferability of Ink The dot portion of each color was magnified with a magnifying glass (30 times), and the dot reproducibility was visually determined. Halftone dot reproducibility 100-75% good (○) 75-50% Slightly poor (△) 50-0% poor (×) (2) Adhesiveness of ink Adhesive tape “Cellotape” (trade name) manufactured by Nichiban Co., Ltd.
Was strongly adhered to the printing surface, and was quickly peeled off along the printing surface, and the degree of ink detachment from the paper surface was visually determined. Ink residual rate 100-95% Good (O) 95-80% Slightly poor (△) 80-0% Poor (X)

[II] Experimental Examples Example 1 (1) Biaxially stretched thermoplastic resin film containing fine cavities (A ¹ )
Production of melt flow rate (MFR) 0.8 g / 10 min,
A composition (a ¹ ) in which 80% by weight of polypropylene having a melting point of 167 ° C. and 20% by weight of calcium carbonate having an average particle size of 1.5 μm are melt-kneaded by an extruder set at a temperature of 270 ° C. The sheet was extruded into a sheet by a die and cooled by a cooling device to obtain a non-stretched sheet. Then
After heating this unstretched sheet to a temperature of 150 ° C., it was stretched 5 times in the machine direction to obtain a 5 times stretched sheet. Then, after heating again to a temperature of 162 ° C., the film was stretched 7.5 times in the transverse direction at a temperature of 162 ° C. using a tenter, annealed at a temperature of 167 ° C., and cooled to a temperature of 60 ° C. The ears were slit to obtain a 60 μm biaxially stretched thermoplastic resin film (A ¹ ) containing fine voids (porosity 38%).

(2) Production of Support (A) The biaxially stretched thermoplastic resin film (A)
¹ ) 60 μm, high density polyethylene uniaxially stretched film (A ² ) manufactured by Nimura Chemical Co., Ltd. (trade name: PE3K-BT ^# 2)
5. 25 μm thick, lateral Elmendorf tear strength 1
80 g) with an adhesive ("Olivein" manufactured by Toyo Moment Co., Ltd.) so that the stretching direction of the high-density polyethylene uniaxially stretched film is orthogonal to the transverse stretching direction of the fine void-containing thermoplastic resin stretched film. A body (A) was obtained.

(3) Production of Substrate Layer (I) A high-density polyethylene uniaxially stretched film (A
² ) On the surface side, an acrylic pressure-sensitive adhesive was added at a solid content of 25 g / m2.
^{After two} coatings, a release paper (60 μm) was laminated to obtain a base layer (I).

(4) Formation of heat-sensitive recording layer The following heat-sensitive recording coating solution was applied to the side of the support (A) of the base layer (I) facing the biaxially stretched thermoplastic resin-containing film (A ¹ ). The heat-sensitive recording layer (II)
Was formed. Next, this was printed and processed into a barcode as shown in FIG. 3 and evaluated, and the results are shown in Table 1. Further, this air tag was attached to the handle of the trunk as shown in FIG.

Preparation Method of Thermal Recording Coating Solution Preparation of Solution A ・ 10 parts of 3- (N-ethyl-N-isoamylamino) -6-methyl-7-phenylaminofluoran ・ 20 parts of dibenzyl terephthalate ・ 5% of methylcellulose Aqueous solution 20 parts ・ Water 40 parts The above materials were mixed, and the average particle size was 3 with a sand mill.
Milled to a μm. Preparation of Liquid B ・ 30 parts of 4,4-isopropylidenediphenol ・ 40 parts of 5% aqueous solution of methylcellulose ・ 20 parts of water The above materials were mixed and pulverized with a sand mill until the average particle diameter became 3 μm. Preparation of coating liquid 90 parts of liquid A, 90 parts of liquid B, 30 parts of silicon oxide pigment (trade name: Mizucalcil P-527, average particle diameter: 1.8 microns, oil absorption: 180 cc / 100 g, manufactured by Mizusawa Chemical)
300 parts of 10% polyvinyl alcohol aqueous solution and water 2
Eight parts were mixed and stirred to obtain a coating liquid.

Coating Method An anchor coat layer is formed by applying a water-based coating solution in which a polyethylene anchor coating agent and silica for blocking prevention are mixed, and then a coating for the heat-sensitive recording layer prepared as described above. The coating amount after drying the liquid is 5 g / m
^It was coated so as to be ² , dried, and further super-calendered to obtain a thermal recording type air tag.

Example 2 A biaxially stretched thermoplastic resin film containing fine cavities of the support (A) of the base layer (I) obtained in “(3) Production of base layer (I)” in Example 1 A ¹ ) An aerial tag was obtained in the same manner as in Example 1 except that the following coating solution for forming a thermal transfer receiving layer was applied to the surface side. Then, a barcode as shown in FIG. 2 was printed and processed on the thermal transfer recording image receiving type aerial tag with a thermal transfer sheet and evaluated, and the results are shown in Table 1. Preparation of a coating solution for forming a thermal transfer receiving layer : 5.3 parts by weight of Byron 200 (Toyobo Saturated Polyester: TK = 67 ° C.) 5.3 parts by weight of Byron 290 (Toyobo Saturated Polyester: TK = 77 ° C.)・ Vinylite VYHH (vinyl chloride copolymer manufactured by Union Carbide) 4.5 parts by weight ・ Titanium oxide (KA-10 manufactured by Titanium Industries) 1.5 parts by weight ・ KF-393 (amino-modified silicone oil manufactured by Shin-Etsu Silicones) 1.1 parts by weight-X-22-343 (Epoxy-modified silicone oil manufactured by Shin-Etsu Silicone Co., Ltd.) 1.1 parts by weight-30 parts by weight of toluene-30 parts by weight of methyl ethyl ketone-22 parts by weight of cyclohexanone A composition for forming a receptor layer was prepared and dried by wire bar coating to a thickness of 4
It was coated to a micron size and dried to obtain an image receiving type aerial tag for thermal transfer recording.

Example 3 A biaxially stretched thermoplastic resin film containing fine voids of the support (A) of the base layer (I) obtained in "(3) Production of base layer (I)" in Example 1 A ¹ ) A non-impact printer type aerial tag was obtained in the same manner as in Example 1 except that the following coating liquid for forming a laser print was applied to the surface side.
Then, a bar code as shown in FIG. 3 is printed on this non-impact printer type aerial tag by a laser print printer, processed and evaluated, and the results are shown in Table 1. Preparation of coating liquid for forming laser print 15 parts of 2-hydroxyethyl methacrylate, 50 parts of methyl methacrylate 35 parts of ethyl acrylate and 100 parts of toluene were charged into a three-necked flask equipped with a stirrer, a reflux condenser and a thermometer, and nitrogen was added. After the substitution, 0.6 part of 2,2-azobisisobutyronitrile was introduced as an initiator, and polymerization was carried out at a temperature of 80 ° C. for 4 hours. The obtained solution was a 50% toluene solution of a hydroxyl-containing methacrylate polymer having a hydroxyl value of 65. Next, a 75% ethyl acetate solution of “Coronate HL” (hexamethylene isocyanate system manufactured by Nippon Polyurethane Industry Co., Ltd.) and heavy calcium carbonate powder having an average particle size of 1.5 μm were added thereto in a solid content ratio as shown in Table 1. Mix, solids 4 with butyl acetate
0%, and then dry solid content of 3% on the surface of the synthetic paper.
g / m ^2, and then at 80 ° C.
After curing for a time, a non-impact printer type aviation tag was obtained.

Example 4 Uniaxially stretched high-density polyethylene film (A ² ) manufactured by Nimura Chemical Co., Ltd. used in “(2) Production of support (A)” in Example 1
(Product name: PE3K # 25, thickness 25μm)
"Futamura Chemical Co., Ltd. high-density polyethylene uniaxially stretched film (A ²⁾ (trade name: PE3K-BT # 50, thickness: 50
μm, transverse Elmendorf tear strength: 230 g) "
An air tag was obtained in the same manner as in Example 1 except for using. Next, this was printed and processed into a barcode as shown in FIG. 3 and evaluated, and the results are shown in Table 1.

Example 5 Uniaxially stretched high-density polyethylene film (A ² ) manufactured by Nimura Chemical Co., Ltd. used in “(2) Production of support (A)” in Example 1
Instead of Nippon Petrochemical Co., Ltd. high-density polyethylene uniaxially stretched film (A ² ) “Nisseki Barila Film” (trade name: HG, wall thickness: 25 μm, lateral Elmendorf tear strength: 250 g) ” An aerial tag was obtained in the same manner as in Example 1 except that the air tag was used. Next, this was printed and processed into a barcode as shown in FIG. 3 and evaluated, and the results are shown in Table 1.

Example 6 In place of the biaxially stretched thermoplastic resin-containing film (A ¹ ) used in “(2) Production of support (A)” in Example 1, the following method was used. An aerial tag was obtained in the same manner as in Example 1 except that the obtained biaxially stretched thermoplastic resin film containing fine cavities (A ⁴ ) was used. Next, this was printed and processed into a barcode as shown in FIG. 3 and evaluated, and the results are shown in Table 2. Preparation of Support (A ⁴ ) Composition (A) comprising 80% by weight of polypropylene having an MFR of 0.8 g / 10 min and a melting point of 167 ° C., and 20% by weight of calcium carbonate having an average particle size of 1.5 μm; Is 0.8
A composition (B) in which 5% by weight of calcium bicarbonate having an average particle size of 1.5 μm was blended with 95% by weight of polypropylene / 10 g / 10 minutes and melt-kneaded at a temperature of 270 ° C. using separate extruders. And supplied to one co-extrusion die, and melt-laminated in the die so as to be B / A / B.
Extruded at a temperature of 0 ° C.
Cooled to a temperature of ° C. This laminate is heated at 150 ° C
, Stretched 5 times in the machine direction, then heated again to a temperature of 162 ° C, and then stretched 7.5 times in the transverse direction at a temperature of 162 ° C using a tenter.
Annealing at a temperature of 60 ° C., cooling to a temperature of 60 ° C., slitting the ears, 60 μm (B / A / B = 5 μm)
m / 50 μm / 5 μm) to obtain a biaxially stretched thermoplastic resin-containing film (A ¹ ) having a three-layer structure (porosity: 37).
%).

Comparative Example 1 As a support (A), a biaxially stretched thermoplastic resin-containing film (A ¹ ) 95 produced by the following method was used.
An air tag was obtained in the same manner as in Example 1 except that μm was used alone. Next, a bar code as shown in FIG. 3 was printed and processed, and evaluation was performed.
Shown in Preparation of Support (A ¹ ) In Example 1, the opening degree of the die was changed to obtain a biaxially stretched thermoplastic resin film (A ¹ ) containing fine voids of 95 μm.

Comparative Example 2 A biaxially stretched thermoplastic resin-containing film (A ⁴ ) 95 produced by the following method was used as the support (A).
An air tag was obtained in the same manner as in Example 6 except that μm was used alone. Next, a bar code as shown in FIG. 3 was printed and processed, and evaluation was performed.
Shown in Production of Support (A ⁴ ) In Example 6, 95 μm (B
/ A / B = 5 μm / 85 μm / 5 μm) to obtain a thermoplastic resin biaxially stretched film (A ¹ ) containing fine cavities.

Comparative Example 3 Production of synthetic paper As a support (A), a high-density polyethylene uniaxially stretched film (A ² ) manufactured by Nimura Chemical Co., Ltd. (trade name: PE3K-
An aviation tag was obtained in the same manner as in Example 1 except that BT # 25, a thickness of 25 μm, and a transverse Elmendorf tear strength of 180 g) were used alone. Next, a bar code as shown in FIG. 3 is printed, processed, and evaluated.
Table 1 shows the results. Comparative Examples 4 to 8 Examples 1 to 5 described in JP-A-63-193836 (Cited Document 1) were repeated, and five types of synthetic papers a to e were obtained. Next, the surface layer B of the synthetic papers a to d and the synthetic paper e have a two-layer structure of the surface layer C / B, and the separation between the C / B layers is difficult because they are melt-laminated with a die. Therefore, the back layer B is laminated with the center layer A (between the center layer A and the surface layer (back layer) B, and after the center layer A is longitudinally stretched, the surface layer (back layer) B is laminated. To obtain the uniaxially stretched films a ′ to e ′ for the peeling test. Tear strength was measured according to JIS P-8116 using an Elmendorf tear strength tester manufactured by Tozai Seiki Co., Ltd. Table 1 shows the results of the tear strength (vertical direction (longitudinal stretching direction during synthetic paper production), transverse direction (tenter stretching direction)) of the uniaxially stretched films a ′ to e ′ and all layers of the synthetic papers a to e. Was. Results As shown in Table 1, the tear strength of the surface layer B (uniaxially stretched film) of the synthetic paper described in Patent Document 1 is smaller in both the vertical and horizontal directions than the uniaxially stretched film used in the present invention. .
The reason why the tear strength of the two is greatly different is that the uniaxially stretched film used in the present invention necks out when extruded from a die and then longitudinally stretches (shrinks in the width direction of the longitudinal stretching). While the molecular chains are oriented in the direction, the molecular chains in the lateral direction aggregate. Therefore, it is presumed that the tear strength in both the vertical and horizontal directions was improved. On the other hand, the surface layer described in Patent Document 1 is laminated uniaxially with a tenter in the lateral direction after being laminated on the core layer. In this case, it is presumed that the molecular chains in the longitudinal direction of the core layer (in the longitudinal stretching direction) could not be aggregated (because they were laminated and constrained on the core layer), and no improvement in tear strength was observed. As described above, the synthetic paper of the present invention is much more excellent in tearability than the synthetic paper described in Patent Document 1.

Example 7 (1) Biaxially stretched thermoplastic resin film containing fine cavities (A ¹ )
A composition (a ¹ ) obtained by blending 20% by weight of calcium carbonate having an average particle size of 1.5 μm with 80% by weight of polypropylene having a melt flow rate (MFR) of 0.8 g / 10 minutes was mixed with 2 parts of
After melt-kneading with an extruder set at a temperature of 70 ° C,
The sheet was extruded into a sheet by a die and cooled by a cooling device to obtain a non-stretched sheet. Next, the unstretched sheet was heated to a temperature of 150 ° C., and then stretched 5 times in the machine direction to obtain a 5 times stretched sheet. Then, after heating again to a temperature of 162 ° C., the film was stretched 7.5 times in the transverse direction at a temperature of 162 ° C. using a tenter, annealed at a temperature of 167 ° C., and cooled to a temperature of 60 ° C. The ears were slit to obtain a 60 μm biaxially stretched thermoplastic resin film (A ¹ ) containing fine voids (porosity 38%). (2) Production of the support (A) (1) Microvoided thermoplastic resin biaxially stretched film (A
¹ ) 60 μm, high density polyethylene uniaxially stretched film (A ² ) manufactured by Nimura Chemical Co., Ltd. (trade name: PE3K-BT ^# 2)
5. 25 μm thick, lateral Elmendorf tear strength 1
80 g) using an adhesive ("Olivene" manufactured by Toyo Moment Co., Ltd.) so that the uniaxial stretching direction of the uniaxially stretched film of the high-density polyethylene uniaxially stretched film is perpendicular to the transverse direction of the biaxially stretched thermoplastic resin film containing fine cavities. To obtain a synthetic paper (A). This synthetic paper was evaluated by the above evaluation method. Table 3 shows the results.

[0053]

[Table 1]

[0054]

[Table 2]

[0055]

[Table 4]

[0056]

EFFECT OF THE INVENTION A uniaxially stretched thermoplastic resin film (A) having a wall thickness of 10 to 60% of the total synthetic paper and having substantially no fine voids having a transverse Elmendorf tear strength of 80 g or more.
² ) The synthetic paper with improved tearability of the present invention obtained by laminating a biaxially stretched thermoplastic resin film (A ¹ ) containing fine cavities via an adhesive, and aviation using the same The tag can be made of synthetic paper having excellent tear strength and printing characteristics or an airline tag using the same as the support layer (A). However, even if the airline tag is pulled and arranged while handling the luggage, it does not mean that it is easily torn and detached from the luggage.

[Brief description of the drawings]

FIG. 1 is a sectional view of an aeronautical tag according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of an aeronautical tag according to an embodiment of the present invention.

FIG. 3 shows a plan view of the aeronautical tag of the present invention.

FIG. 4 shows a rear view of the airline tag of FIG. 3;

5 shows an airline tag in which the airline tag of FIG. 4 is divided into a transportation ticket, a management ticket, and a memorandum ticket, and the release paper on the back of the transportation ticket is peeled to expose an adhesive layer portion. It is.

FIG. 6 shows an air tag attached to luggage.

[Explanation of symbols]

I base layer II recording layer A substrate layer (synthetic paper) fine void containing than the A ¹ minute void-containing thermoplastic resin biaxially oriented film A ² minute cavity having substantially no thermoplastic resin film A ³ A ¹ rate is small or the thermoplastic resin two without microcavities biaxially stretched film A ⁴ A ¹ and the thermoplastic A ³ are laminated resin biaxially oriented film B pressure-sensitive adhesive layer C release agent D recording layer (color developing property by a bar coating Applied layer) a ¹ Base layer a ² Paper layer 1 Airline tag 1a Surface of airline tag 1b Back surface 2 Barcode 3 Carriage ticket 3a Pasted portion 3b Pasted portion at the other end 4 Management ticket 5 Copy ticket 6 Perforation 7 Break 8 Trunk 8a Handle

Continuation of the front page (56) References JP-A-63-193836 (JP, A) JP-A-1-231083 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B23B 1 / 00-35/00 G09F 3/00-3/20

Claims (3)

(57) [Claims] A biaxially stretched film of a thermoplastic resin containing fine cavities containing 5 to 60% by weight of an inorganic fine powder (A ¹ )
And a thermoplastic resin film (A ² ) having substantially no microcavities stretched in a uniaxial stretching direction having a transverse Elmendorf tear strength of 80 g or more in a transverse direction, and a synthetic paper having a structure laminated via an adhesive. The thickness of the uniaxially stretched thermoplastic resin film (A ² ) is 10 to 60% of the total thickness of the synthetic paper (A), and the latter thermoplastic resin uniaxially stretched film ( A synthetic paper having improved tearability, wherein the synthetic paper is bonded by an adhesive so that the stretching direction of A ² ) is orthogonal to the direction of higher stretching ratio of the former biaxially stretched film (A ¹ ). 2. An aeronautical tag comprising a recording layer (II) / a support layer (A) / a pressure-sensitive adhesive layer (B) / a release paper layer (C) and managed by a barcode, wherein the support layer ( A)
Is a thermoplastic resin biaxially stretched film (A ¹ ) containing fine voids containing 5 to 60% by weight of an inorganic fine powder, and a fine void stretched uniaxially in a transverse Elmendorf tear strength of 80 g or more. The thermoplastic resin film (A ² ) which is not provided in the above has a structure in which the thermoplastic resin film (A ² ) is laminated via an adhesive, and the thickness of the uniaxially stretched thermoplastic resin film (A ² ) is the entire thickness of the support layer (A). 10 to 60% of the thickness of
And the latter thermoplastic resin uniaxially stretched film (A ² )
Stretching direction of the former biaxially stretched film (A ¹ )
Glued so as to be perpendicular to the high
A flight tag , wherein a recording layer (II) provided on the thermoplastic resin biaxially stretched film (A ¹ ) side is provided with a barcode. 3. An aerial tag comprising a recording layer (II) / a support layer (A) / a pressure-sensitive adhesive layer (B) / a release paper layer (C) and managed by a barcode, wherein the support layer ( A)
Is coated on the surface of a thermoplastic resin biaxially stretched film (A ¹ ) containing fine voids containing 5 to 60% by weight of an inorganic fine powder, on the surface of the thermoplastic resin biaxially stretched film (A ¹ ) containing fine voids.
More, a thermoplastic resin biaxially oriented film comprising a structure obtained by stacking substantially no thermoplastic resin biaxially oriented film (A ³⁾ whether or fine voids fine void content is small (A ^4), transverse Elmendorf tear strength of 80g
The thermoplastic resin film (A ² ) having substantially no fine voids stretched in the above uniaxial stretching direction is bonded with an adhesive.
The thickness of the uniaxially stretched thermoplastic resin film (A ² ) is 10 to 60% of the total thickness of the support layer (A), and the thermoplastic resin film (A ² ) Resin
The stretching direction of the axially stretched film (A ² ) is the former biaxially stretched film.
So as to be perpendicular to the direction in which the stretching ratio of the film (A ¹ ) is high.
An aeronautical tag, wherein a bar code is attached to a recording layer (II) provided on the thermoplastic resin biaxially stretched film (A ³ ) side, which is attached with an adhesive .