JPS6342793B2 - - Google Patents

Description

[Detailed Description of the Invention] A pressure-sensitive adhesive is applied and the product is lined with a release mount, and when used, the release mount is peeled off and attached to a target object, such as a tape cassette case, and the required information is filled in. Adhesive labels are widely used. In addition, in such adhesive labels,
A thin transparent film is also pasted on the surface of the label to prevent the written part from being rubbed and soiled during handling of the product, making it impossible to read the written information.

Figures 1 to 3 illustrate such adhesive labels, and the label 3 has a pressure-sensitive adhesive 1 applied to the back side and a release liner 2 overlaid on the back side, and has a writing part 3a and a writing part 3a. Printing parts 3b and 3c are provided, and this label is placed on the adhesive-coated surface of a thin transparent film 5 of the same size coated with a pressure-sensitive adhesive 4, and a release paper 6 of a size that covers the writing part 3a and the printing part 3c. , overlap the adhesive exposed part on the printed part 3b, and paste it.
The film 5 is glued to the label 3 in a hinge shape, and is subjected to a process called half lamination.

To use this label, before or after peeling off the release liner 2 and pasting the label 3 on the article, write the required information on the writing section 3a, then peel off the release paper 6 and place the film 5 on the writing section 3a. , when attached to the printing part 3c, a transparent film 5 is applied to the entire surface of the label 3.
will be adhered to prevent the writing from being smudged.

The method conventionally considered for manufacturing such adhesive labels is as illustrated in Fig. 4.
A long belt-shaped label base paper 3 is attached with a release liner 2 using a pressure-sensitive adhesive 1 and is rolled up and supported on a shaft 7.
d is wound around the shaft 8, while the printing portions 3b, 3c and other parts are printed using the printing roll 9, and then the transparent film 5 is attached. The film 5 is made into a long strip having the same width as the base paper 3d, a pressure sensitive adhesive 4 and a release paper 6 are attached to it, held by a shaft 10, and passed between pressure rolls 11 together with the base paper 3d.

As shown in FIG. 5, a cut 6a is made in advance on the release paper 6 at an inward position from the edge by the width of the printed portion 3b.
Since the part 6b separated from the cut 6a and corresponding to the printed part 3b is wound around the winding shaft 12 in front of the pressure roll 11, the pressure sensitive adhesive 4 is exposed in this part, and the pressure roll 11 Film 5 passes through
is attached to the printed portion 3b. Next, as shown in FIG. 6, the film 5, release paper 6, and
The base paper 3d is simultaneously cut into a label shape, and the label-shaped base paper 3d adhered to the release mount 2, the film 5, and the release paper 6 pasted to the film 5 are left on the release mount 2, and the remaining film is left on the release mount 2. , the release paper 6 and the base paper 3d are wound up on a shaft 14, and the release liner 2 to which the label-shaped base paper 3d with a partially pasted film is pasted is wound up on the shaft 8. The rolled-up long peelable mount 2 is cut in a separate process into individual adhesive labels with a transparent film as shown in FIG. 2.

Conventionally, letterpress printing has been exclusively used to produce the adhesive label 3 in this manner. This is because it is cheaper to install and use than offset printing, gravure printing, etc., so it is suitable for relatively inexpensive printed matter such as labels, but letterpress printing does not allow ink to bleed between the plate and the paper. It comes out and makes the outline of the print unclear, and also forms indentations in the shape of the plate on the paper, so if you change the color of the ink and overprint, the outline will become unclear. Therefore, it is not suitable for multicolor printing, and multicolor printing with a large number of colors cannot be performed.
Further, when printing is performed while moving the label base paper 3d as in the apparatus shown in FIG. 4, the printing accuracy becomes even worse due to speed irregularities, vibrations, etc., and beautiful multicolor printing cannot be performed.

This invention utilizes lithographic printing such as offset printing, which is free from the drawbacks of ink oozing and the formation of concave marks and can perform multicolor printing with high precision, to economically and efficiently perform beautiful multicolor printing, and to perform half lamination processing. It was invented for the purpose of providing a method for obtaining labels with

Next, the present invention will be explained with reference to embodiments shown in FIG. 7 and subsequent figures. The same symbols are used for parts that are equivalent to the conventional example,
The explanation will be omitted.

First, sheet 1 with a release paper of the same size attached to the back side.
5 (label base paper), a large number of label portions are printed in line. To print the label part, use a sheet of any size depending on the size of the label part. Since this printing is performed using sheet-fed printing such as offset, gravure, and silk printing, it can be performed with high precision, and even when overprinting multiple colors, there will be no ink oozing, dented marks, or contour deviations. Beautiful printing possible. Furthermore, since many label portions are printed on one sheet in one printing, it is also economical.

This printed sheet 15 is transferred to a device such as the one illustrated in FIG. 8, and a film is applied thereto. sheet 1
5 are continuously fed between the pressure rolls 11 one by one using a chute, a conveyor, or manually. On this sheet 15, a long thin transparent film 5 coated with a pressure-sensitive adhesive and pasted with a cut release paper 6 and wound around a roll is moved to a shaft 1 by a pressure roll 11.
The sheets are pulled out from 0, stacked on top of each other, and enter the pressure roll 11 together with the sheet 15. From the release paper 6, before entering the pressure roll 11, the outer part 6b corresponding to the printed part 3b of the label is separated and removed by a cut, and the outer part 6b is removed by a cut.
Wind it up to 2. A plurality of these cuts are formed in accordance with the arrangement of label prints printed on the sheet so that the film 5 can be adhered to the printed portion 3b. The sheets 15 after passing through the pressure roll 11 are connected by a long continuous film 5. Next, the cutter 16 cuts the film 5 and release paper 6 at the joints of the sheets, and separates the sheets 15 into individual sheets. , separate on a peel-off mount. As shown in FIG. 8, the two sheets 15 connected by the film 5 may overlap in the margin where the label part is not printed, and the film 5 and the release paper 6 may be overlapped in this margin. Just cut it. Since the overlap widths are different, the timing for driving the cutter 16 is determined by providing a timing hole or printing on the edge of the sheet and photoelectrically outputting a signal by passing or reflecting light to drive the cutter 16. You can also drive the cutter manually. This sheet 15
are carried out by a chute 17 or a belt conveyor or the like, and transferred to a process where the label portion is cut from the release liner to form individual adhesive labels with a film 5 and release paper 6 attached.

Since the method of the present invention is configured as described above, (1) Label printing is performed by sheet-fed planographic printing, so accuracy is high and multicolor overprinting can be performed beautifully.

(2) After writing on the writing section 3a, the film 5 provides an adhesive label that does not stain the writing section.

(3) Printing is not done continuously like in the past, but because many labels are printed on a sheet and cut out individually, the overall printing speed is fast and the number of labels per label is high. printing costs will also be lower. In the conventional method shown in FIG. 4, it is not possible to increase the width of the base paper, and therefore it is not possible to print a large number of label portions at one time.

[Brief explanation of drawings]

1 to 3 illustrate a half-laminated adhesive label, in which FIG. 1 is a plan view, FIG. 2 is a perspective view, and FIG. 3 is a side view. FIG. 4 is a schematic side view showing a conventional half lamination processing device, FIG. 5 is a partial perspective view of a long film used in the conventional method, and FIG. 6 is a perspective view of a cutting roll used in the conventional method. FIG. 7 is a plan view of a sheet on which a label portion is printed in sheets according to the present invention, and FIG. 8 is a side view schematically showing an apparatus for carrying out the method of the present invention. 1: pressure sensitive adhesive, 2: release mount, 3: label,
3a: writing section, 3b, 3c: printing section, 3d: base paper, 4: pressure sensitive adhesive, 5: transparent film, 6: release paper, 6a: perforation, 6b: outer part, 7:
Shaft, 8: Shaft, 9: Print roll, 10: Shaft, 11:
Pressure roll, 12: shaft, 13: cutting roll, 1
4: shaft, 15: seat, 16: cutter, 17: shoot.

Claims (1)

[Claims] 1. While transporting the sheet 15 on which a large number of label portions are printed by sheet-fed printing using planographic printing and attached to a release paper of the same size via a pressure-sensitive adhesive layer,
Apply pressure sensitive adhesive and attach release paper 6.
A long thin transparent film 5 which has been cut and wound into a roll is pressed against the sheet 15 by a pressure roll 11, and a part of the release paper 6b stuck to the film is placed in front of the pressure roll. The film 5 is separated from the film by continuous cuts, wound up, and the exposed pressure-sensitive adhesive is used to adhere a part of the film 5 to the part of the label printed on the sheet 15 where the writing part 3a is removed, and then connected with the film 5. This method of producing an adhesive label is characterized in that a plurality of sheets 15 are individually cut off, and each label on which a film 5 partially lined with a release paper 6 is attached in a hinge-like manner is cut out from the sheet 15.