JPS59201847A - Blank for printed label - 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 The present invention is a material for heat-sensitive printed labels, specifically having excellent printability, pen-writing suitability, oil-based ink suitability, fading resistance, washing resistance, and dry IJ-printing resistance. Regarding materials for heat-sensitive printed labels.

Acetate satin, nylon taffeta, and 7I? have traditionally been used as materials for printed labels. Lyester taffeta.

Rayon satin etc. are used. Recently, fabrics having a polyamide porous layer have come into widespread use, and the technology thereof is disclosed in Utility Model Publication S, )-'l:l'177.

After printing, these materials for printed labels are cut to the desired size and attached by mincing stitches, but attachment using a sewing machine requires manual labor, which is time-consuming and costly, and there are many requests for improvements.

Acetate satin meets the above requirements.

Some methods have been developed in which an ethylene-vinyl acetate copolymer layer is printed on one side of a fabric such as nylon taffeta, polyester taffeta, or rayon zaten, and then bonded to the desired substrate using a hot press machine or iron. .

However, the base material for printed labels, which has a heat-sensitive adhesive layer made of ethylene-vinyl acetate copolymer on the self-fabric (Section II), has insufficient printability and requires a heat cutter to prevent peeling. be. In addition, there are only a limited number of dry cleaners, which have the drawback of not being able to withstand 1' dry cleaning and being weak when washed at home, and are not widely available.

Attempts have also been made to provide the above-mentioned fabric with a low-melting point polyamide layer, but although it is satisfactory in terms of dry cleaning and one-sided texture, the printability is insufficient and heat cutting is required. That point has not been resolved (・
. In addition, the adhesive strength between the fabric and the low melting point polyamide layer is weak.
Various problems arise, such as reverse osmosis of the melted adhesive during thermocompression bonding into the fabric.

On the other hand, as another means to meet the request in item 11, there is a method in which one side of the fabric is coated with a pressure-sensitive adhesive mainly made of acrylic acid ester, synthetic rubber, natural rubber, etc., but the adhesive strength is low and dry cleaning is possible.

It can't even withstand washing at home.

As a result of continuing research in order to meet the above-mentioned needs, the present inventors have found that the above-mentioned problems can be solved at once by providing a low-melting point polyamide resin layer on one side of a substrate having a porous polyamide resin layer. Heading: The present invention has been completed.

That is, in the present invention, one side of a substrate having a polyamide resin porous layer has a melting point of g0°C~/gO°C1 thickness of 30μ~750.
The object of the present invention is to provide a thermocompression bonded image print label, characterized in that it is provided with a polyamide resin adhesive layer of μ.

The form of the substrate used in the present invention may be either a single-knit woven fabric or a non-woven fabric. The fibers used are 15 lyamide (nylon Otsu, nylon 6 Otsu, nylon Otsu 10, etc.) - acetate, ]? Lyester, acrylonitrile.

Rayon, cotton, etc. and their blends, mixed fibers, and mixtures can be used, but if the fibers are long fibers, do you need a pointer for bonding between the substrate and the porous polyamide resin layer? It is desirable that the main material is yarn fiber. Also, if the fiber or short fiber to be used is 11111IJ for the type of fiber
a 1: J,' if: I.

The polyamide porous layer used in the present invention is dissolved in a methanol solution of carunium chloride and coated with a doctor knife.

It is applied onto a substrate by a known method such as roll coating, washed with water, dried, etc., and then dried for a month. A flexibility strength agent and various birch stabilizers may be mixed into the polyamide resin salt solution in methanol. In addition, when the substrate is mainly composed of boriamy 1:' fibers 11, the surface of the fibers is made porous by applying only a solution of j salt 1 hical/um methanol using a known method such as mangel coating, washing with water, and drying. It is also disclosed in Utility Model Publication SJ-'IAJg/.

Regarding the printed surface IF of the polyamide resin porous layer used in the present invention, lj! There is no limit to the weight of the polyamide resin porous layer on the heat-sensitive adhesive layer side, but the weight of the polyamide resin porous layer on the heat-sensitive adhesive layer side is 0.2 of the base weight. ! i weight scale times or less, preferably 0.70
Preferably less than double the weight. The reason for this is that when the weight of the porous real layer of boriamite resin exceeds 0.25 times the weight and height of the base IT, the strain that occurs between the surface and the interior of the coating film increases, resulting in a decrease in the strength of the coating film, which makes it difficult to print labels. This is because there is a risk that the adhesive strength between the objects to be adhered will be lower than the required level and the printed name label will be broken from the porous portion of the polyamide resin and peeled off from the objects to be adhered. The reason for the occurrence of the strain within the coating film has not yet been theoretically elucidated, but it is thought to be caused by the difference in solidification rate and solidification form between the surface of the coating film and the interior of the coating film.

"Last layer used in the polyamide resin adhesive layer used in the present invention" refers to nylon Otsu, nylon Otsutsu, and nylon Otsu 10.
．． Examples include copolymers such as nylon 72 and dimer acid polyamides.

In addition, the melting point of the resin used for the polyamide resin adhesive layer must be higher than gθ'C from the viewpoints of adhesive strength, washability, surface J cleanability, etc. In order not to affect the porous layer, the temperature should not exceed /gO°C.

Also, what is the coating thickness of the resin used for the polyamide resin adhesive layer in order to maintain the minimum adhesive strength between the printed name label and the adhered object? It must be less than 0μ to prevent problems such as texture, adhesive extrusion, etc.
It must be thrown below iθμ.

Example: A nylon taffeta (warp 70 denier IO g pieces/inch 2 weft 70 denier ? θ pieces/inch, heavy @bs7 7z2) was coated with nylon resin on both sides using the I5 ctor coating method and coated with hot water (rio 'c) After soaking in a, wash with water and dry, the amount of a applied on one side is 5.07. Obtained intermediate material for printed label material of An2. Next, a 2-thread copolymer of nylon with a melting point of 15'C was extruded onto a 70μ film using an extrusion coater and laminated on one side of the intermediate to obtain a printed label with thermocompression bonding.

The thermocompression-adhesive printed label obtained as described above was offset printed with letters and designs on the perforated nylon resin surface, then printed on wool fabric (tropical) with 0.0 pressure.
The specifications were cleaned under the conditions of 21ψ feed, temperature: 20°C, 1 hour and S seconds (no change in content)), and were subjected to a rinsing test and a dry cleaning test after being left for qg waiting time. As shown in Table 2] Washing property (1 ml) Dry cleaning properties, printability, peeling resistance, and bleed-out resistance were extremely excellent, and there was no bleeding when writing with marker ink.

Blend/Nylon A M) part Methyl alcohol Left g part Calcium chloride Body part Calcium carbonate 7 parts Comparative Examples After pressing a 70μ film of the nylon copolymer onto the nylon taffeta described in the example to obtain hot-pressable nylon taffeta, Tests similar to those in Examples were conducted.Table 2 Note/Test method JTSL/θ, 2F-/Method Note 2 Testing machine New 6-method drying machine (manufactured by Akita Clothing Groove Tucker Co., Ltd.)

[Brief explanation of the drawing]

The figure is a schematic cross-sectional view of the printed label element of the present invention. In the figure, / and J are polyamide porous layers, 2 is a substrate, and Hiroshi is a heat-sensitive Boriamy F adhesive. Procedural amendment (formality) August 16, 1980 Kazuo Wakasugi, Commissioner of the Patent Office 1, Indication of case Patent Application No. 74880, 1988 2
, Title of the invention Material for printed labels 3, Person making the amendment Relationship to the case Patent applicant 26-4 Nishikyogoku Daimon-cho, Ukyo-ku, Kyoto-shi, Kyoto Prefecture Date of amendment order July 26, 1980 5 Subject of amendment Column 6 of detailed explanation of the invention in the specification, contents of amendment

Claims (2)

[Claims] (1) For a thermocompression print label characterized by providing a polyamide resin adhesive layer with a melting point of g0°C to /gO°C1 and a thickness of 30μ to /30μ on one side of a substrate having a porous polyamide resin layer. material. (2) The heat according to claim (1), characterized in that the weight of the porous polyamide resin layer sandwiched between the substrate and the polyamide resin adhesive layer is 0.2S times or less the weight of the substrate. (J) A thermocompression adhesive print label according to claims (1) and (2), characterized in that the substrate is a long fiber fabric made of polyamide fibers. Material for use. (/I) The thermocompression-adhesive printed label material according to claims (1) and (2), characterized in that the substrate is made of short fiber fabric.