JPH04241900A - Bar-code label and cloth with bar-code label - Google Patents

Abstract

PURPOSE:To provide the bar-code label for a cloth product and the cloth with the bar-code label which are excellent in its durability and printing performance, to manage the information of a cleaning requester of each product at the time of cleaning of a bed sheet, etc. CONSTITUTION:Cloth with a bar-code label is constituted by printing a bar-code onto one face of a heat resistance transparent plastic film by using heat resistance ink, and also, applying and providing an adhesive resistant to heat, water, and detergent onto the bar-code printing surface, and moreover, sticking the adhesive applied and provided surface concerned to cloth, and sewing the bar- code label and the cloth.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a barcode label attached to a fabric product having excellent heat resistance, water resistance and washing resistance.

0002

[Prior Art] These fabric products are used for cleaning clothing, sheets, towels, diaphragms, etc. that are used in large quantities in hotels, hospitals, restaurants, etc.
The service life, cleaning clients, etc. vary. It is desired to attach a barcode label to each fabric product as a method for rationalizing the management and saving labor.

[0003] As a method of attaching an identification tag to a fabric product, for example, Japanese Patent Laid-Open No. 2-235976 is known.

0004

However, the above-mentioned Japanese Unexamined Patent Publication No. 2-235976 is for dry cleaning, and it is necessary to attach a tag each time cleaning is performed. Therefore, the present invention solves the drawbacks of these conventional techniques, and provides an inexpensive and useful barcode for fabric products that does not cause label peeling, breakage, heat shrinkage, or blurred printing even after repeated cleaning a corresponding number of times. It provides a label.

[0005]

[Means for Solving the Problems] The present invention prints a barcode on one side of a heat-resistant transparent plastic film using heat-resistant ink, and further coats the barcode-printed surface with a heat-resistant, water-resistant, and detergent-resistant adhesive. The gist is a barcode label that is characterized by the following features:

The heat-resistant transparent plastic film of the present invention may be made of a fluororesin, a resin composition containing poly-p-phenylene sulfide as a main component, a polymer having an imide group in its molecular chain, or an aromatic polyamide polymer. A film made of any of the above, and the heat resistance temperature of these films is 150°C, preferably 200°C, more preferably 240°C.
℃ or higher, and the heat shrinkage rate at 150℃ is 2%
The heat shrinkage rate at 250° C. is preferably 15% or less, more preferably 8% or less. If the heat shrinkage rate exceeds this range, the heat resistance will be poor, which is not preferable. It also needs to be flexible enough to avoid cracking or tearing.

[0007] The fluororesin used in the present invention is a generally known fluororesin. For example, polytetrafluoroethylene (PTFE), polytetrafluoroethylene-polyhexafluoropropylene copolymer (FEP),
Polytetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), polytetrafluoroethylene-ethylene copolymer (ETFE), polychlorofluoroethylene (PCTFE), polyvinylidene fluoride (PVDF), polyvinyl fluoride ( PVF), polytrifluoroethylene-ethylene copolymer (ECTFE)
etc. can be mentioned.

[0008] The structure of the resin composition containing poly-p-phenylene sulfide as a main component in the present invention is a repeating unit.

[0009]

[Chemical formula 1]

It is a polyphenylene sulfide having the following as a main structural unit. Preferably, the content of this structural unit is 70 mol% or more, more preferably 90 mol% or more.

As for the remaining less than 30 mol% of the repeating units in the above polymer,

0012

[Case 2]

(Here, R is an alkyl group, nitro group, phenyl group, or alkoxy group having 1 to 10 carbon atoms), trifunctional phenyl sulfide unit

[0014]

[Chemical formula 3]

It can be constructed from the following.

The characteristic melt viscosity of the poly-p-phenylene sulfide in the present invention is 500 to 12,000 at a temperature of 300°C and an apparent shear rate of 200 sec-1.
Poise is preferred, and a range of 700 to 7000 poise is more preferred from the viewpoint of film formability, surface properties, etc.

As the polymer having an imide group in its molecular chain in the present invention, those generally known as polyimide and polyamideimide are effectively used. The following are examples of repeating units:

[0018]

[C4]

[0019] As such Ar1,

[0020]

[C5]

[0021] As Ar2,

[0022]

[C6]

[0023] As Ar3,

[0024]

[C7]

[0025] As Ar4,

[0026]

[Chemical formula 8]

[0027] etc. are preferred. here,

[0028]

[Chemical formula 9]

Alternatively, at least one hydrogen atom of these aromatic rings may be substituted with an alkyl group (having 1 to 6 carbon atoms), a hydroxyl group, or a halogen group.

[0030] The polymer having imide groups in the molecular chain in the present invention is a copolymer containing other structural units,
Although it may be a blend with other components, it is effective for the present invention that 40% by weight or more of the total weight is units of the general formula (A) or (B). The above unit is 4
If it is less than 0% by weight, the mechanical strength as a film,
This is not preferred because dimensional stability, heat resistance, etc. are impaired.

[0031] The aromatic polyamide polymer in the present invention has the following general formula:

[0032]

[Chemical formula 10]

[0033] However, n is an integer, and R1 and R2 are

0
034]

[Chemical formula 11]

(Here, a, b, and c do not become a=b=c=0 at the same time for R1 and R2, and a=0,
represents 0 or 1 selected so that b=c=1 or c=0, a=b=1, and x is

[0036]

[Chemical formula 12]

R3 is selected from

00
38]

[Chemical formula 13]

(Here, d and e are d=e=1 or d=e
= 0 or d = 0, e = 1, and X represents 0 or 1 selected so that

[0040]

[Chemical formula 14]

In the polymer represented by (selected from At least 15% or more of the phenyl nuclei in the amide bond have a halogen group (selected from Cl, Br, F), or a nitro group, or a C1 to C3 alkyl group, or a C1 to C3 alkyl group, at the position ortho to the amide bond.
It is an aromatic polyamide having substituents such as ~C3 alkoxy groups.

[0042] As mentioned above, the aromatic polyamide polymer of the present invention has 50% or more of the total number of bonds as para bonds. In order to increase the properties, it is preferable to include a meta, ortho, alkylene, ester, heterocyclic, urea, urethane, etc. bond in a range of less than 50%. Further, the ortho position referred to in the present invention includes all of the following four positions.

[0043]

[Chemical formula 15]

[0044] Here, X1 to X4 indicate the ortho positions referred to in the present invention. As a specific example, in the general formula, a=1, b=c=0 and has a Cl group

0045
]

[Chemical formula 16]

[0046] etc., but the following formula is not included.

[0047]

[Chemical formula 17]

[0048] However

[0049]

[Chemical formula 18]

A polymer having a hydrazide bond such as

[0051]

[Chemical formula 19]

Polymers having oxide bonds such as the following are included.

[0053] To make films from these polymers, melt film formation is generally not possible, and films are formed by dry, wet, or dry-wet processes from a solution state. The membrane-forming solution is prepared using concentrated sulfuric acid, amide-based N-methylpyrrolidone, dimethylacetamide, hexamethylphosphoramide, or a mixed solvent of these and an inorganic salt.

[0054] The heat-resistant transparent plastic film used in the present invention is desired to have sufficient transparency so that a bar code can be read without error by a bar code reader, and the reading depth also satisfies the specifications of the bar code reader.

The thickness of the heat-resistant transparent plastic film constituting the barcode label of the present invention is not particularly limited, but is preferably in the range of 1 to 500 μm, more preferably in the range of 5 to 300 μm, and is suitable for practical use as a base material. Excellent handling properties.

The heat resistance of the heat-resistant, water-resistant and detergent-resistant adhesive of the present invention is 150°C, preferably 200°C, more preferably 240°C. In addition, it is desirable that it has sufficient durability against detergents such as powdered soap, synthetic detergent, hydrogen peroxide, and hypochlorous acid, as well as hot water. 1kg/2
It is desirable to have a peel strength of 5 mm or more. Such adhesives include acrylic adhesives (acrylic esters,
acrylic copolymer resin), silicone-based, synthetic rubber-based (styrene-butadiene rubber (SBR), chloroprene),
Examples include polyester type, polyamide type, elastomer type (hot melt type), etc.

[0057] The barcode ink has a heat resistance of 150°C, preferably 200°C, more preferably 240°C or higher. Printing methods include electrophotography, inkjet method,
Examples include thermal transfer method, fabric ribbon method, electrostatic recording method, and printing method. Here, if the printing area of the barcode is set to be smaller than the area of the entire film, a seam allowance will be secured and a desirable result will be obtained in the sewing described below.

The fabrics used in the present invention are not particularly limited, but include so-called clothes, linens used in hotels (sheets, towels, tablecloths, etc.), hospital linens (sheets, nightwear, white coats, etc.). etc.) and restaurant towels, tablecloths, etc.

[0059] The sewing thread and sewing method in the present invention are not particularly limited, but examples include a method of sewing with a sewing machine or the like using cotton, polyester, nylon, or a blend thereof as thread. .

[0060] Next, one embodiment of the present invention will be described, but it is not particularly limited thereto.

First, as a heat-resistant transparent plastic film, a resin composition containing a fluororesin, poly-p-phenylene sulfide as a main component, a polymer having an imide group in the molecule, or an aromatic polyamide-based polymer is used. Barcodes are printed on one side of the film. An example of a printing method is to use an Autonics BC-8Mk2 printer. Next, an adhesive layer is applied to the barcode printed side of the heat-resistant transparent plastic film.

Adhesives include acrylic (acrylic acid ester, acrylic copolymer resin), silicone, synthetic rubber (styrene butadiene rubber (SBR), chloroprene), polyester, polyamide, and elastomer (hot melt type). ) etc.

The coating method is not particularly limited, and extrusion lamination, melt coating, etc. may be used, but gravure coating, river coating, etc. can be used because it is possible to coat a thin film at high speed. Known methods such as the scoting method, kiss coating method, die coating method, and metaling bar coating method can be applied. In addition, by performing known surface treatments such as corona discharge treatment in the air or in various other atmospheres as necessary before coating, not only will coating properties be improved, but the adhesive will also be made stronger and more heat resistant. Can be formed on the surface of a transparent plastic film. The coating material concentration and coating film drying conditions are not particularly limited, but it is desirable that the coating film drying conditions be within a range that does not adversely affect the properties of the base film or barcode printing.

[0064] The barcode label manufactured in this way is
It can be applied manually or mechanically to any fabric product, such as sheets, towels, tablecloths, nightwear, white coats, diaphragms, etc.

[0065] After pasting the barcode label, if the barcode label is further sewn using a thread of cotton, polyester, nylon, etc. by a sewing machine or by hand, the durability will be improved.

The characteristic values of the present invention are based on the following measurement method and evaluation criteria.

(1) The barcode label of the present invention bonded to a heat-resistant plain woven sheet was placed on a flat surface with the sheet side facing down, and heated at 200° C. for 1 minute at a pressure of 20 g/cm 2 .

[0068] Judgment criteria are as follows: Film: Good (shrinkage rate within ±5%)
−−−−−−−−−−○ Inferior (shrinkage rate ±5 to 10%
) −−−−−−−−−−−−−−−−−−−△ Defective (shrinkage rate exceeds ±10% or melts) --
−−−−−−× Adhesive: Good (180° peel strength 1 kg/25 mm or more) −
−−−−−−−−−○ Poor (180° peel strength 5
00g/25mm or more 1kg/25m
(Less than m)
Poor (180° peel strength less than 500g/25mm) -
−−−−−−−−−× Ink: Determined by visually observing the barcode with a magnifying glass. Good printing quality −−−−−−−−−
−−−−−−−−−−−−−−−−−−−○ Poor printing quality −−−−−−−−−−−−−−−−−−−−−−−
−−−−−△ Poor printing quality −−−−−−−−−−−−
−−−−−−−−−−−−−−−× (2) The barcode label attached to the water-resistant plain weave sheet was immersed in 60°C water for 30 minutes, and then the 180° peel strength was measured. .

Good (1 kg/25 mm or more)---------
----------○ Inferior (500g/25mm
more than 1kg/less than 25mm) ----------△ Defective (less than 500g/25mm) -----------------------
−−−−−−×(3) Detergent resistant The barcode label attached to the plain weave sheet is soaked in 60°C water containing 1g of detergent "Attack" (manufactured by Kao Corporation) per 1l of water for 30 minutes. After dipping for a minute, the 180° peel strength was measured.

Good (1 kg/25 mm or more)---------
----------○ Inferior (500g/25mm
(over 1kg/less than 25mm) --------△
Defective (less than 500g/25mm)----------------------
−−−−−−−×

[0071]

[Examples] The present invention will be explained below based on Examples, but the present invention is not limited thereto.

Example 1 A fluorine film (Toyoflon manufactured by Toray Synthetic Film Co., Ltd.) having a thickness of 100 μm was subjected to plasma treatment.

[0073] Autonics BC on one side of the film.
-8Mk2 printer (ribbon is H manufactured by Toppan Printing Co., Ltd.)
D, a barcode was printed using printing conditions (10.5V, 4.2ms).

[0074] Next, an adhesive mainly composed of acrylic ester (manufactured by Nippon Carbide Industries Co., Ltd.) was applied to the surface on which the barcode was printed using a comma method, and the applied layer was heated at 120°C.
The sheet was dried for 1 minute to obtain a sheet having a heat-resistant coating layer of 40 μm. This is called sheet A.

[0075] The adhesive-applied side of sheet A was brought into contact with a plain weave sheet, and then a 2 kg rubber roller was pasted thereon in 5 reciprocations, and then heated at 100°C, 300 g/cm2, 1
Thermocompression bonding was performed for 5 seconds.

Furthermore, the area around the barcode printed area was sewn using a sewing machine.

[0077] The heat resistance, water resistance,
Detergent resistance was evaluated. The results are shown in Table 1.

Next, the sheets with this barcode label pasted are placed in a washing machine MWX-450 (manufactured by Tokyo Washing Machine Seisakusho).
Wash at 60℃ for 22 minutes, rinse and spin for 27 minutes,
Thereafter, it was dried and pressed using a roller press heated to 150°C.

Table 2 shows the characteristics of the barcode label after this washing process was repeated 100 times.

Example 2 Polyimide film with a thickness of 25 μm (Du P
Example 1 except that "Kapton" manufactured by Ont was used.
I did the same thing. The results are shown in Tables 1 and 2.

Comparative Example 1 Example 1 except that a biaxially stretched polypropylene film with a thickness of 25 μm (“Torefane” manufactured by Toray Industries, Inc.) was used.
I did the same thing. This label will shrink after printing the barcode.
It was deformed. Furthermore, the barcode label after printing was deformed due to heat treatment, making it impossible to read the barcode. The results are shown in Table 1.

[0082]

[Table 1]

[0083]

[Table 2]

[0084]

[Effects of the Invention] The barcode label of the present invention has excellent heat resistance, water resistance, and detergent resistance, so it has sufficient durability for cleaning fabric products such as sheets, towels, and tablecloths. There is.

Due to these characteristics, the barcode label of the present invention is suitable for managing the cleaning of sheets, towels, tablecloths, nightwear, white coats, etc. used in hotels, hospitals, restaurants, etc.

Claims (3)

[Claims] 1. A bar characterized by printing a barcode on one side of a heat-resistant transparent plastic film using heat-resistant ink, and further coating the barcode-printing surface with a heat-resistant, water-resistant, and detergent-resistant adhesive. code label. 2. A fabric with a barcode label, characterized in that the heat-resistant, water-resistant, detergent-resistant adhesive-coated surface of the barcode label according to claim 1 is bonded to a fabric. 3. The barcode labeled fabric according to claim 2, wherein the barcode label and the fabric are sewn together.