JPH1159021A - Sheet for pressure sensitive adhesive printing for heat sensitive recording - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable application of heat sensitive recording system to a pressure sensitive adhesive printing sheet for delivery by a method wherein pseudo-adhesive agent, separable after bonding, is provided on the rear side of the substrate and a heat sensitive recording layer is installed on the front side of the same while a stamping unit, consisting of a printing layer, is provided on the heat sensitive recording layer. SOLUTION: A title 40, the address of delivery 41, the information 42 on the kind of a contained matter, the indicating column 43 of an addressed person or the like are written on the protective layer of a delivery part 4 through printing or the like previously. On the other hand, in the case of receiving slit, for example, information on a title 50, an address column 51, indicating column of sender, data of delivery 54, condition of delivery 52, a receiving stamp column 55 or the like, are recorded on a receiving part 5. Various guiding information or recording information are recorded by printing or various recording device previously in accordance with the other objects. A bonding structure, bonding to the matter to be delivered through a bonding sheet 2, an adhesive agent and a peeling sheet, is constituted while the peeling sheet is separated. In this case, the delivery part 4 and the receiving part 5 are made separable from the bonding sheet 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is based on a pseudo-adhesive layer having a function of temporarily adhering when a predetermined pressure is applied to the surfaces on which the pseudo-adhesive layers are applied to face each other, but which can be easily peeled off when necessary. The present invention relates to a heat-sensitive recording pressure-sensitive adhesive print sheet having a back surface and a front surface on which recording information can be obtained by a heat-sensitive recording method and having a sealability.

[0002]

2. Description of the Related Art Conventionally, a pressure-sensitive adhesive print sheet has been used for a delivery slip for displaying information, capacity, quality, price, etc. on an article, and on an address display label attached to a mailing article.
Alternatively, it is widely used for office labels and the like used for organizing documents. Conventionally, methods for recording information on these delivery slips and the like have mainly been dot printer systems, type ribbon systems, and the like.However, these methods have noise, require ink replenishment, and require ribbon replacement. Because of its disadvantages, there is a demand for the development of a pressure-sensitive adhesive printing sheet by a heat-sensitive recording system in view of ease of maintenance, low running cost, and low noise.

[0003] However, when applying a heat-sensitive recording type pressure-sensitive adhesive print sheet to delivery, it has the above-mentioned advantages, but also has drawbacks. Application was inhibited. In other words, the heat-sensitive recording pressure-sensitive adhesive print delivery sheet, when obtaining from the recipient a seal for confirmation when receiving the delivery slip,
Since the drying of the seal imprint is hindered by the heat-sensitive recording layer, the seal imprint disappears or becomes unclear when stored in contact with other delivery sheets or other articles, thereby impairing the storage stability.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional drawbacks and to make it applicable to a heat-sensitive recording type pressure-sensitive adhesive print delivery sheet. More specifically, the present invention is to provide a heat-sensitive recording pressure-sensitive adhesive print sheet capable of recording sealing information that can withstand long-term storage without being affected by poor drying of the seal imprint by the heat-sensitive recording layer. is there.

[0005]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to achieve this object, and as a result, the imprint of the seal has been blurred or lost at an early stage, and the preservability of the recorded image has been impaired. The cause is mainly because the thermal recording layer does not have the function to permeate the vermillion ink of the seal or the vehicle of the ink into the layer and dry the imprint, so the unevenness of other delivery sheets and other articles It has been found that when subjected to physical friction, the sealability is easily lost, and the preservability is impaired, for example, the print becomes unclear. As a method for accelerating the drying of the imprint, it has been found that the imprint can be avoided by providing a seal portion comprising a print layer above the heat-sensitive recording layer, and the present invention has been accomplished.

That is, the present invention provides a thermosensitive coloring layer containing a colorless or pale-colored leuco dye and an acidic substance as coloring components, and preferably an overcoat layer and a functional layer on the surface, and further comprises an inorganic pigment. The imprint part consisting of a printing layer containing is sequentially formed on the heat-sensitive recording layer, and a pseudo-adhesion layer which can be peelably adhered by applying a predetermined pressure to the back surface without applying in a normal state is applied. An excellent sheet for pressure-sensitive adhesive printing for thermal recording characterized by having:

The present invention will be described in further detail. As the adhesive base used for the pseudo adhesive layer on the back surface, a conventional pressure-sensitive adhesive may be used. A blend of a resin and a natural rubber latex is suitable in terms of blocking resistance, heat resistance, and abrasion resistance. As the pseudo adhesive layer, a layer formed by mixing a fine particle filler showing non-newness to the adhesive is used.

As the fine particle filler, silica, calcium carbonate, wheat starch, kaolin, talc, titanium oxide and cellulose powder are used, and these materials may be used alone or in combination of two or more. The above-mentioned fine particle filler is 50 to 300 parts by weight, most preferably 100 to 25 parts by weight, based on 100 parts by weight of the adhesive base.
It is preferable to mix them in a proportion of 0 parts by weight.

Further, a combination in which the surface of the pseudo-adhesive layer has irregularities of 1 to 50 .mu. By forming discontinuous unevenness, the peelability after the pseudo bonding is improved.

Further, by adjusting the surface properties of the base material and smoothing treatment with a calender, the smoothness of the surface to which the pseudo adhesive layer is applied can be reduced to J.
It is preferably adjusted to 10 to 30 seconds, preferably 15 to 25 seconds according to ISP-8119.

The air permeability is adjusted to 100 seconds or more and 700 seconds or less in accordance with JISP-8117 by selecting the base material and adjusting the thickness of the pseudo-adhesive coating film, thereby improving the adhesion at the time of pseudo-adhesion. I do.

As the printing layer, in addition to a commonly used printing ink, a UV ink and a polyamine adduct of an epoxy resin, which is used for printing on synthetic paper and has a fast drying property, are used as a main component of the vehicle. Inks and the like are exemplified, and these are applied or printed and dried on the upper layer of the heat-sensitive coloring layer to form an imprint portion by the printing layer.

The printed layer may contain an odor neutralizing deodorant such as a compound having camphor odor such as cineol. The odor neutralizing deodorant combines odor groups such as carbonyl groups, carbosyl groups, aldehyde groups, residual latex monomers, and residual acrylic monomers that are present in the pressure-sensitive adhesive in an appropriate manner or acts efficiently to reduce odor. It has the function of weakening or extinguishing. And / or functional layers such as an ultraviolet absorber layer, an aromatic layer, a deodorant layer, a slip agent layer, and an opacity enhancer layer are provided on the upper layer, and the other layers are combined with a print layer to adjust the thickness to 10 μ or less. by doing,
Various functions can be provided while maintaining good thermal recording, and the object of the present invention that can withstand long-term storage is achieved without being affected by temperature and humidity changes such as contact with other articles or rainfall. is there.

The thermosensitive coloring layer of the present invention is formed on a base material such as paper, synthetic paper, resin sheet, etc. as in the prior art. Conventionally known ones are used, examples of which are shown below. 1. Leuco dye crystal violet lactone, 3-indolino-3
-P-dimethylaminophenyl-6-dimethylaminophthalide, 3-diethylamino-7-chlorofluoran,
3-diethylamino-7-cyclohexylaminofluoran, 3-diethylamino-6-methyl-7-anilinofluoran, 3-diethylamino-6-methyl-7-P
-Butylanilinofluoran2. Acidic substances Bisphenol A, 4-phenylphenol, 4-hydroxyacetophenone, 2,2-dihydroxydiphenyl, 2,2'-methylenebis (4-chlorophenol)
2,2 'methylenebis (4-methyl-6-t-butylphenol), 4,4'isopropylidenebis (2-chlorophenol), 4-4'-isopropylidenebis (2
-Methylphenol), 4,4'-ethylenebis (2-
2. Methylphenol), 4,4′-thiobis (6-t-butyl-3-methylphenol) Binders Water-soluble or aqueous emulsions of polyvinyl alcohol, methoxycellulose, carboxymethylcellulose, polyvinylpyrrolidone, polyacrylamide, polyacrylic acid, starch, gelatin, polystyrene, vinyl chloride-vinyl acetate copolymer, polymethyl methacrylate, etc. Additives known in the field of heat-sensitive recording materials can be added to the coloring layer.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the pressure-sensitive adhesive print sheet according to the present invention will be described in more detail.

First, a preferred use form of the pressure-sensitive adhesive print sheet according to the present invention for a delivery slip will be described with reference to the accompanying drawings. 1 is a schematic plan view of a delivery slip, FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 2, FIG. 3 is a cross-sectional view of a delivery slip on which delivery information is printed, and FIG. FIG. 5 is a cross-sectional view of the state after peeling, and FIG.

As shown in FIGS. 1 and 2, the delivery slip 1 is composed of a delivery section 4 and a receiving section 5 which are peelably bonded on a bonding sheet 2 via a peelable pseudo-adhesive layer. A thermosensitive recording layer 60 and a printing layer 70 are provided on the thermosensitive recording layer on the surfaces of the section 4 and the receiving section 5, and the delivery section 4 and the receiving section 5 divide the same base material B by slits or perforations 6. It is formed.

As shown in FIG. 2, a normal adhesive 7 having a strong adhesive force is provided on the back side of the adhesive sheet 2, and the adhesive 7 application surface is cut through a cut 9 if necessary. It is covered and protected by the release sheet 8 to be formed.

Further, the delivery slip 1 is initially separated from the continuous form state which is continuous through a folding / cutting perforation (not shown) in FIG. 1 through the perforation. is there. On both sides in the width direction, there are provided marginal portions 12 in which a large number of transfer holes 11 are provided at equal intervals from the perforation 10 for cutting.

As shown in FIG. 1, on the protective layer of the delivery section 4, for example, a title 40 serving as a delivery slip, a destination field 41,
The delivery column 43 and the like are described in advance by printing or the like, and information on the content type column 42 is recorded. On the other hand, in the receiving unit 5, for example, a title 50 as a receiving slip, a destination field 51, a display field 53 of a sender, etc. are described in advance by printing or the like.
Information such as a destination field 51, a sender's display field 53, a delivery date field 54, a delivery status field 52, and a receipt stamp field 55 is recorded.
In addition, various guide information and record information are recorded in advance by printing or by various recording devices according to the purpose. OCR information such as a bar code is also recorded.

An adhesive structure for adhering to a delivery item by the adhesive sheet 2, the adhesive 7 and the release sheet 8 is formed, and peeling of the release sheet 8 is an adhesive condition of the adhesive structure. The delivery unit 4 and the receiving unit 5
Is configured to be peelable from the adhesive sheet 2.

In the delivery slip, various delivery information In is recorded in a predetermined column by a thermal recording printer device linked to a computer (not shown).
The delivery slip 1 is created by removing 2 and shortening it. This delivery slip 1 is formed by slitting the release sheet 8 into slits 9.
, And is adhered to an appropriate place of the delivery item M with the exposed adhesive 7, and the delivery operation is performed.

[0023] In the delivery destination receiving the delivery item, the receiving unit 5
Is peeled off from the adhesive sheet 2 (see FIG. 4), and the recipient stamps a seal in the receipt stamp field, and has the receipt date entered in the receipt date entry field. End the delivery work.

In the present invention, as shown in FIG. 2, a printing layer 7 is provided on the surface of the heat-sensitive recording layer 60 of the base material B.
0 is formed.

As the printing layer, in addition to a commonly used printing ink, a UV ink, a polyamine adduct of an epoxy resin, which is used for printing on synthetic paper and has a fast drying property, is used as a main component of the vehicle. Inks and the like are exemplified, and these are applied or printed and dried on the upper layer of the heat-sensitive coloring layer to form an imprint portion by the printing layer.

In general, the preservability of the imprint In of the thermosensitive recording agent layer 60 is unsuitable for long-term storage and delivery use due to insufficient drying ability of the thermosensitive recording layer. However, the provision of the print layer makes the imprint imprint disappear. The storage stability can be prevented from being impaired.

In the layer structure shown in FIG. 2, the thicknesses of the base material B, the adhesive sheet 2 and the release sheet are not limited, but the total thickness of the entire delivery slip 1 is set to 250 μm or less in order to supply to the printer. Is desirable. Furthermore, as shown in FIG. 5, it is desirable that the notice information Im be good on the surface of the base sheet 2 facing the receiving section 5 without being seen from the outside of the delivery slip 1. .

In the present invention, as the adhesive sheet 2 and the base material B, high quality paper, medium quality paper, coated paper, synthetic paper, plastic film and the like can be used.

The peeling force of the pseudo adhesive 3 was 20 ° C., 50%
The test piece was left in an environment of RH for more than 30 minutes, simulatedly bonded through a gap of 150 μm by a crimping machine manufactured by Dai Nippon Printing Co. or Moore Co., Ltd., cut into a width of 5 cm, and received at a receiving portion and an adhesive sheet (paper). )) T-peel tensile strength of 100g or less, delivery section and adhesive sheet (part)
It is desirable that the tensile strength of the T peel at 200 g is 200 g or more. The pseudo adhesive 3 may be provided on one of the adhesive sheet 2 and the support B, or may be provided on both.

[0030]

As is clear from the above description,
According to the present invention, a pseudo-adhesive that can be peeled off after bonding is provided on the back surface of the base material B, a thermosensitive recording layer is provided on the front surface, and a marking portion made of a printing layer is provided on the upper layer of the thermosensitive recording layer. Even when processing into a slip or the like, information is recorded smoothly, and the preservability of the seal is improved.

[Brief description of the drawings]

FIG. 1 is a front view of a delivery slip according to one embodiment of the present invention.

FIG. 2 is a sectional view thereof.

FIG. 3 is a cross-sectional view of a state of sticking to an adherend (delivery item).

FIG. 4 is a cross-sectional view showing a state after the receiving section is peeled off.

FIG. 5 is a plan view thereof.

[Explanation of symbols]

1: delivery slip, 2: adhesive sheet, 3: pseudo adhesive, 4:
Delivery section, 5: Receiving section, 6: Perforation, B: Support.

Claims (1)

[Claims] 1. A pseudo-adhesive layer which does not normally adhere to the back surface of a base material but can be adhered under certain conditions and can be peeled off after adhesion is provided, and a colorless or pale color surface is provided on the front surface. A heat-sensitive coloring layer containing a leuco dye and an acidic substance as color-forming components, and a pressure-sensitive adhesive for heat-sensitive recording, characterized in that a marking portion composed of a printing layer is sequentially formed at a predetermined position above the heat-sensitive coloring layer. Print sheet.