JPH09226276A - Delayed tack type continuous attachment sheet - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To fold a continuous sticking sheet in which a sticking sheet having a delayed tack type adhesive coating film on the back side of a sheet base material is connected through a sewing line in a zigzag shape. Provided is a delayed tack-type continuous sticking sheet that prevents the blocking phenomenon from occurring even when stored in a high temperature environment. SOLUTION: A sticking sheet Sn having a delayed tack type adhesive coating D on the back side of a sheet base material 2 is a sewing machine wire M.
A continuous sticking sheet 1 which is connected via a sheet, when folded in a zigzag shape from a sewing machine line Mf for folding,
The release agent-containing coating C is provided at a predetermined portion of the pressure-sensitive adhesive coating D surface that is asymmetrical with respect to the folding sewing line Mf so that the pressure-sensitive adhesive coating films D of the facing adhesive sheets Sn do not contact each other. The delayed tack type continuous sticking sheet 1 characterized in that

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive sheet which does not require release paper and which can be adhered to an adherend such as an article, a packaged item, or a delivery item for inventory management and delivery management, and more specifically, The present invention relates to a delayed tack type continuous sticking sheet in which a plurality of the sticking sheets are connected to each other via a sewing wire.

[0002]

2. Description of the Related Art A conventional sticking sheet has a backside coated with a sticky adhesive so that it can be adhered to an adherend. Therefore, for example, if it is configured integrally with a delivery slip consisting of various forms such as a sender copy, a recipient copy, a sending slip, and a delivery slip, this can be attached to a delivery item. In addition, this adhesive sheet alone may be provided with various information entry fields on its surface to form an adhesive slip. And
At the time of use, the predetermined information is written and then the release paper covering the adhesive is peeled off to adhere to the adherend.

As described above, the conventional sticking sheet generally has a structure in which the pressure-sensitive adhesive coating film and the release paper for protecting the same are provided on the back side of the sheet base material. However, the release paper peeled off at the time of sticking is unnecessary, which leads to waste of resources, and moreover, the slippery surface of the release paper has a high degree of slippage, so that when the amount of peeled release paper increases, it tends to scatter. There is a problem that accidents such as stepping on and falling are likely to occur,
In addition, the written information is output using an output device such as a printer,
Although issuance work has been streamlined, there is also a problem that the presence of release paper increases the thickness of the entire slip and prevents smooth printing.

In order to stop the use of the release paper, instead of using an adhesive that is always sticky, the release paper is not normally attached, but is adhered by applying predetermined adhesion conditions such as heat, pressure and water. The use of adhesives is also considered. However, when a conventional hot-melt adhesive or pressure-activated adhesive is used, heat and pressure must be applied while the adhesive sheet is in contact with the adherend. Depending on the shape of the body and the smoothness of the surface, stable adhesion may not be possible.

Further, in the case where a plurality of sheets are superposed on the sticking sheet, when the hot-melt adhesive or the pressure-activated adhesive is heated or pressed, the sticking sheet surface side Since heat and pressure are applied, it is difficult to apply predetermined heat and pressure to the back surface of the adhesive sheet at the lowest position, and it is difficult to provide sufficient adhesion conditions. In addition, since the re-wetting adhesive also sprays or applies water to the adhesive, it is very difficult to control the water, and the strength of the sticking sheet itself is lowered due to excessive humidification, and the adhesive is easily damaged.
Humidity control was also difficult and the workability was very poor.

In order to solve such a problem, a sticking sheet having a coating film of a delayed tack type pressure-sensitive adhesive on the back side of a sheet base material has been proposed. Although this delayed tack type adhesive does not have adhesiveness in a normal state, it develops adhesiveness by applying heat (such as blowing hot air) above a certain temperature (activation temperature), and then cools to room temperature. It does not lose the tackiness immediately and has the property of holding the tackiness for a certain period (several days to one month). Therefore, release paper is not necessary because it has no tackiness before heating, and once heated to develop tackiness, the adherend is treated in exactly the same way as a sticking sheet coated with a normal tackiness agent. It can be attached to.

By the way, in the above example, the adhesive sheet is shown as a single body, but normally, in order to correspond to information output devices, a plurality of adhesive sheets are connected in a continuous state via a sewing line. And the continuous adhesive sheet is folded and stored in a zigzag shape, in which case the adhesive coatings of the adjacent adhesive sheets are in contact with each other. As a result, even with a delayed tack type adhesive that normally does not have tackiness, when the storage environment is poor, that is, when it is exposed to a high temperature environment, it shows some tackiness. There has been a problem that coating films in contact with each other stick to each other and a blocking phenomenon occurs.

[0008]

SUMMARY OF THE INVENTION Therefore, in view of the above problems, the present invention connects a sticking sheet in which a delayed tack type adhesive is applied to the back side of a sheet base material through a sewing line. An object of the present invention is to provide a continuous sticking sheet that does not cause a blocking phenomenon even when the continuous sticking sheet obtained by the above is folded in a zigzag shape and stored in a high temperature environment.

[0009]

The present invention has been made in consideration of the above problems, that is, the delayed tack-type continuous sticking sheet of the present invention has a delayed tack-type pressure-sensitive adhesive coating on the back side of a sheet base material. A continuous sticking sheet in which the sticking sheet having a film is connected through a sewing wire,
When folded in a zigzag shape from the folding sewing machine line, the adhesive coating film surface becomes asymmetrical with the folding sewing machine line as a boundary so that the adhesive coating films of the respective facing adhesive sheets do not contact each other. It is characterized in that a release agent-containing coating is provided on a predetermined portion.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in detail with reference to the preferred embodiments. In addition, here, FIG. 1 is a schematic perspective view showing the continuous adhesive sheet of the present invention in a zigzag-folded state in which the adhesive sheet is used as a delivery slip, and FIG. 2 is an adhesive sheet S1 in FIG. FIG. 3 is a plan view of the surface of S2 in a developed state, FIG. 3 is an explanatory view of the arrangement of the release agent-containing coating on the back surface thereof, FIG. 4 is a cross section taken along line XX of FIG. 3, and FIG. FIG. 6 is an explanatory view of the state when folded, FIG. 6 is an explanatory view of another arrangement of the release agent-containing coating in FIG. 3, and FIG. 7 is an explanatory view of the arrangement of the release agent-containing coating in another embodiment.

First, as shown in FIGS. 1 and 2, the constitution of the continuous sticking sheet 1 in this embodiment has a delayed tack type adhesive coating D and a release agent-containing coating C on the back side of the sheet base material 2. A plurality of adhesive sheets Sn (n =
1, 2, ..., N) are connected to each other via a folding sewing line Mf. It should be noted that marginal punches are provided on both sides thereof to accommodate a feeding device such as a printer. Then, the sticking sheet Sn is processed as a delivery slip 3, and on the front surface side thereof, a delivery information description section 4 in which delivery information such as the address name of the recipient, the address name of the sender, and the type of delivery item is written, Required printing such as other notes is given.

[0012] As described above, the delayed tack type adhesive of the present invention does not have adhesiveness in a normal state, but by applying heat, it is adhesive for a certain period (several days to one month) after heating. And specifically includes the following substances. That is, ethylene-ethyl acrylic acid copolymer, ethylene-methyl methacrylic acid copolymer, polyvinyl acetate, vinyl acetate-ethylene copolymer, polybutyl methacrylate, vinyl chloride-vinylidene chloride copolymer, vinyl acetate-allyl acetate Acid 2-ethylhexyl copolymer, vinylpyrrolidone-styrene copolymer, vinylpyrrolidone-ethyl acrylate copolymer, styrene-butadiene copolymer, polyamide resin, polystyrene resin, heat-adhesive resin such as polyurea resin, Glycerin ester of rosin, pentaerythritol modified rosin, petroleum resin, indene resin, ethyl cellulose, α-methylstyrene-vinyltoluene copolymer, tempel oil polymer,
Tackifier such as temperphenol polymer, and dihydroabietyl phthalate, dihexyl phthalate, diphenyl phthalate, dimethyl isophthalate, ethylene glycol tribenzoate, trimethylolethane tetrabenzoate, tridichlorohexyl citrate, stearin Examples thereof include plasticizers such as acid methoxyethyl-urea complex. Further, additives such as wax, antioxidant, desiccant, lubricant and the like are added, if necessary.

The release agent-containing coating in the present invention has a surface having a high slipperiness and a release performance with respect to an adhesive as in the case of release paper, and at least silicone resin, fluorine resin, polyethylene wax and the like can be used. As long as it is a representative material containing a low surface tension slippery / releasing substance, considering the printability for providing this in a pattern as described above, these releasing agents can be used in printing inks. It is preferable to use a release ink, an overprint varnish, etc. added. Most preferably, the UV-curable ink contains silicone such as dimethylpolysiloxane and diphenylpolysiloxane. If the silicone content is too low, the desired release performance cannot be obtained, while if it is too high, the silicone content is too high. Since the strength of the coating film decreases, it is necessary to be in the range of 5 to 25%, preferably 10 to 20%, more preferably 14 to 16%. With this peelable UV curable ink, a coating film can be easily formed by an ordinary offset printing machine, and the peeling performance with respect to the activated delayed tack type adhesive becomes very high.

The release agent-containing coating C is shown in FIGS.
As shown in FIG. 6, when the adhesive sheets adjacent to each other are folded in a zigzag shape from the folding sewing line Mf, each of the pressure-sensitive adhesive coatings D does not contact each other. The stripping agent-containing coating C is provided on the adhesive coating D surface of each of the sticking sheets S1 and S2, as shown in FIG. The stripping agent-containing coating C in the striped shape of each of the sticking sheets S1 and S2 is used for folding so that the adhesive coatings D are not in contact with each other in a state of being folded through the folding sewing line Mf. Sewing line Mf
The sheet is not in a symmetrical position with respect to the boundary, and when it is folded, the exposed portion of the adhesive coating D of the sticking sheet S1 and the sticking sheet S
The release agent-containing coating C of No. 2 or the release agent-containing coating C of the adhesive sheet S1 and the exposed portion of the pressure-sensitive adhesive coating D of the adhesive sheet S2 are arranged at asymmetrical positions so as to alternately contact each other.

Therefore, the same release agent-containing coating C as the adhesive sheet S1 is applied to the adhesive sheet Sn having an odd number n, and the same release agent-containing coating C as the adhesive sheet S2 is applied. If the sheet Sn is applied to an even number n, the respective pressure-sensitive adhesive coatings do not contact each other between any facing adhesive sheets in the folded state. Thereby, even when the storage environment of the continuous sticking sheet is high temperature,
Since there is no part where the adhesive coating is in contact with each other,
No blocking phenomenon can occur.

The arrangement of the release agent-containing coating C is not limited to the stripe shape as shown in FIG. 5, but may be a checkered pattern as shown in FIG. When folded by the folding sewing line Mf, the release agent-containing coating C is arranged asymmetrically with the folding sewing line Mf as a boundary so that the adhesive coating films D of the facing adhesive sheets do not contact each other. If so, this may be a pattern printed by any pattern.

Further, in the example shown in FIGS. 5 and 6,
Although the release agent-containing coating C is provided on the surface of the pressure-sensitive adhesive coating D, the pressure-sensitive adhesive coating D below the release-agent-containing coating C may not be provided. The coating C may be provided directly on the base material sheet 2. Further, the release agent-containing coating C and the pressure-sensitive adhesive coating D do not necessarily have to cover the entire surface of the substrate sheet 2, and there may be a blank portion between them, in short, the release-agent-containing coating C and the pressure-sensitive adhesive. Coating D is
The objects of the present invention can be achieved if they are provided at corresponding positions on the sheets that are in contact with each other.

When using the delivery slip 3 of this embodiment, first, the continuous sticking sheet 1 is folded to the folding sewing line Mf.
Further, the predetermined delivery slip 3 is cut off, and the required delivery information is entered in the delivery information entry part on the surface. At this point, heat is not applied to the delayed tack type adhesive, so that the delayed tack type adhesive coating D does not have tackiness, and after the required description such as filling in delivery information is completed, hot air is applied to the delayed tack type adhesive coating D. The adhesiveness can be exhibited by applying heat by a method such as spraying. Alternatively, the delivery tag 3 is continuously output from the continuous sticking sheet 1, and the delayed tack-type pressure-sensitive adhesive coating D is heated immediately before the delivery tag 3 held by the device having the collating mechanism is fitted to the delivery item. It is also possible to attach the delivery slip 2 to the delivery items one by one by imparting adhesiveness to the product.

In this embodiment, since all the sewing lines are folded as the folding sewing lines, the release agent-containing coatings C are alternately arranged in two different modes on each adhesive sheet. However, as another example, as shown in FIG. 7, a folding sewing line Mf is provided for every other sewing line M, and when folded, two sheets of each adhesive sheet are used as one cycle, and different modes are provided. The release agent-containing coating C may be disposed in. That is, in the present invention, when folded in a zigzag shape, in each unit sheet facing each other,
Any period as long as a release agent-containing coating is provided on a predetermined portion of the pressure-sensitive adhesive coating surface that is asymmetrical with respect to the folding sewing line so that the respective pressure-sensitive adhesive coatings do not contact each other. Good.

[0020]

As described above, according to the continuous sticking sheet of the present invention, the continuous sticking sheet having the delayed tack type pressure sensitive adhesive coating film connected to each other through the perforation line is used. Even when stored in a high-temperature environment in a zigzag-folded state, the adhesive coatings of the sticking sheet to be contacted do not contact each other, which makes it possible to prevent the occurrence of blocking phenomenon. It has an excellent effect.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a continuous sticking sheet of the present invention in a zigzag-folded state in which the sticking sheet is used as a delivery slip.

FIG. 2 is a surface plan view of the sticking sheets S1 and S2 in FIG. 1 in a developed state.

FIG. 3 is an explanatory view of the arrangement of a release agent-containing coating on the back surface of the same.

FIG. 4 is a sectional view taken along line XX of FIG.

FIG. 5 is an explanatory view of a state in which it is folded by a folding sewing line in FIG.

FIG. 6 is another layout explanatory view of the release agent-containing coating in FIG.

FIG. 7 is an explanatory diagram of the arrangement of a release agent-containing coating in another example.

[Explanation of symbols]

 1 ... Continuous sticking sheet 2 ... Base material sheet 3 ... Delivery slip S1, S2, Sn ... Sticking sheet D ... Delayed tack type adhesive coating C ... Release agent-containing coating M ... Sewing line Mf ... Sewing line for folding

Claims (1)

[Claims] 1. A continuous sticking sheet comprising a sticking sheet having a delayed tack type pressure-sensitive adhesive coating on the back side of a sheet base material, which is connected through a sewing machine wire, and is zigzag from a sewing machine wire for folding. When it is folded into a shape, the release agent-containing coating is formed on a predetermined portion of the pressure-sensitive adhesive coating surface that becomes asymmetrical with the folding sewing machine line as a boundary so that the pressure-sensitive adhesive coatings of the facing adhesive sheets do not contact each other. A delayed tack type continuous sticking sheet, which is provided with