JP3387032B2 - Double-sided adhesive sheet - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided adhesive sheet, and more particularly to a thin tatami mat (barrier-free) for placing a tatami mat (barrier-free) on a refurbished flooring. The present invention relates to a double-sided adhesive sheet which is used by adhering one adhesive surface to the back surface of (barrier-free) and adsorbing the other adsorbable surface on a flooring. [0002] Conventional double-sided adhesive sheets include:
As illustrated in FIG. 3 and FIG. 4, the entire front and back surfaces of the sheet substrate 10 such as Japanese paper, kraft paper, and foam having high flexibility and flexibility are formed as an adhesive surface coated with the adhesive 11. Both sides of the sheet substrate 10 and the front and back release papers 12 are attached to cover the adhesive surface, and the front and back release papers 12 are subjected to a spine splitting process with a score line 13a. When peeling the release paper 12, bend the whole appropriately and cut
In general, the release paper 12 was peeled off by picking the edge of the release paper slightly peeled off via 3a. [0003] However, in order to peel off the release paper 12 on the front and back, each time the entire paper must be bent until both edges are peeled off via the cutting line 13a. Not only is it bothersome, but also it does not bend easily depending on the material of the base material 10 and the edges may not be peeled off. There was a problem that it could not be peeled off and the workability during use was poor. [0004] The present invention has been made in view of such problems, and an object of the present invention is to provide an adsorbable and desorbable seal.
Release paper on the adsorbing and releasing side of the sheet material and the adhesive side of the sheet substrate
Each release section of the release paper has its length and shape.
Between the adsorption and desorption side and the adhesive side
Easy and easy to release paper on both sides,
To provide a double-sided adhesive sheet that can be peeled off
is there. For this purpose, the present invention relates to Japanese paper,
A sheet base material 10 having high flexibility and flexibility, such as paper
Adhesive on the entire surface of one of the base materials 10 via an adhesive 11
Of the same size as the sheet material 10
And the sheet material 15 that can be adsorbed and desorbed.
The same size as the adsorbable and removable sheet material 15 attached to the surface
And the other side of the sheet substrate 10
Sheet attached on the adhesive 11 applied to the entire surface
A pressure-sensitive adhesive side release paper 12 of the same size as the base material 10
The sheet material 15 which can be adsorbed and desorbed is made of polypropylene.
Film with high flexibility and flexibility, such as polyethylene and polyethylene
Adsorber structure having continuous fine holes 17 on one side of substrate 16
Formed of a urethane foam adsorption layer 18 of
The detachable sheet material 15 and a corner of the sheet base 10
One part is integrally cut to form a corner cut portion 13.
And the suction release surface side release paper 12 formed as the corner cut portion 13.
Of the adhesive is formed as a knob 14 and the adhesive surface side
A corner of the release paper 12 protrudes from the corner cut portion 13.
Corner cut shorter than the knob 14
The detachable sheet material 15 is formed as a grip portion 19.
Perspective of the removable side and the adhesive side of the sheet substrate 10
Injuries, and easy release of the release papers 12
It is characterized by being constituted so that
You. [0006] Referring to the drawings showing preferred embodiments of the embodiment of the present invention will be described along with its action. FIG. 1 is a partially omitted plan view of an example of a double-sided adhesive sheet according to the present invention.
Is an enlarged sectional view taken along line 2-2 in FIG. 1, in these figures, the double-sided adhesive sheet, the sheet base material, free adsorption de
Sheet material, release paper on the adhesive side and detachable side
You. [0007] sheet substrate 10, Japanese paper, kraft paper, the flexibility of such a foam, a member rich in flexure resistance, while
The adhesive 11 is applied to the entire surface (the surface to be bonded to the flooring).
Adsorbable and removable sheet of the same size as sheet substrate 10 through
Sheet material 15 is attached, and the other entire surface (thin
The adhesive 11 is applied to the adhesive surface with the back of the tatami mat.
You. The sheet material 15 which can be adsorbed and desorbed is adhered to one surface of a film-like base material 16 which is rich in flexibility and flexibility, such as polypropylene or polyethylene, through an anchor coating means (primer processing) or a corona discharge treatment means. A rough surface is formed to enhance the properties, and then a liquid urethane resin having very small particles is applied and spread to a thickness of about 0.3 to 2.0 mm on the rough surface through a urethane resin coating means. Then, while applying heat and air through the open-cell foaming means, a foaming process having open-celled rings is performed to form a urethane foam adsorbing layer 18 having an adsorber structure having continuous fine holes 17. Then, in a drying means (preferably 12
0 drying process is done throughout a temperature) of ℃ adsorption removal itself
The sheet material 15 is present. The sheet material 15 has a film-like base material 16 side adhered to the sheet base material 10 via the adhesive 11 so as to form a suction surface that can be freely sucked and removed. The sheet substrate 10 and the adsorption and desorption integrated therewith
One corner of the flexible sheet material 15 is cut into a substantially triangular corner
Thus, a corner cut portion 13 is formed. [0011] Then, the adsorption of the adsorption detachably sheet material 15
On the removal side, a sheet material 15 (sheet base 1
0) is attached to the suction release side release paper 12 of the same size as
The corner corresponding to the corner notch 13 is a knob 14,
Further, the entire surface of the adhesive 11 of the sheet base 10 is
Adhesive-side release paper 12 of the same size as material 10 is attached
The corners of the release paper, which are the corner cut portions 13, are
Corner cut so that it protrudes more and is shorter than knob 14
The corner cut knob 19 serves as a corner cut knob 19,
In order to distinguish the release paper 12 from the adhesive surface side, the knob 1
4 and the corner cut knob 19 are distinguished by their length and shape.
Have been. [0012] The double-sided adhesive sheet thus constructed
First, pick the corner cutting knob 19 and peel off the release paper 12
Take the exposed surface of the adhesive 11 into a thin tatami mat (barrier-free)
Attach it to the right side of the back. [0013] Then, stripped release paper 12 by holding the knob portions 14, thereby placed by adsorbing the adsorption surface and the exposed on flooring. [0014] Thus, short since the corner cutting knob 19 release paper 12 on the adhesive 11 by picking is easily peeled, the procedure of release paper 12 on the suction surface above will be stripped of Mistakes are prevented. The Flory by adsorption detachably sheet material 15
Even if the flooring is slightly rough on the flooring, or if some dust is attached ,
Because the continuous fine holes 17 in the
It adheres firmly to the flooring without stickiness even at high temperatures, and is fixedly fixed without shifting or moving. To remove the thin tatami mat (barrier-free), the sheet is peeled up in a rolled-up manner, which makes it extremely easy and allows the heat, temperature, humidity,
It cures due to changes over time such as atmospheric pressure, ultraviolet light, etc., and peels cleanly without peeling the base, leaving no glue, or leaving any color, and can be used repeatedly as many times as possible. As described above, according to the present invention,
The length and shape of the release paper on the adsorption desorption side and the release paper on the adhesive side
Release paper on the adhesive side and adsorption removal
You can easily distinguish it from the release paper on the side
To make the release paper easy and to remove it quickly
The adhesive can be placed on the back of thin tatami (barrier-free)
Adhesive, adsorb the desorption side on the flooring,
Even if the flooring is slightly rough,
Even if dust etc. adhere, continuous frethane foam adsorption layer
Due to the sucker action of the micropores, it firmly adheres,
Adhering without stickiness even at high temperature, shifting and moving
Stable tatami mats (barrier-free)
Flooring that can be fixed and rehomed
Adhesive sheet for mounting thin tatami (barrier-free) on top
And can contribute to improvement of workability.
You.

[Brief description of the drawings] FIG. 1 is a partial view of an example of a double-sided adhesive sheet according to the present invention.
It is a schematic plan view. FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG.FIG. 3 It is a partially omitted plan view showing a conventional example. FIG. 4 FIG. 4 is an enlarged sectional view taken along line 4-4 in FIG. 3. [Explanation of symbols] 10 Sheet base material 11 Adhesive 12 Release paper 13Corner cut 14 Pick FifteenAdsorbable and removable sheet material 16 Film substrate 17ContinuousMicropore 18 Urethane foam adsorption layer 19Corner cut knob

Claims (1)

(57) [Claims] (1)Flexibility and flexibility of Japanese paper and kraft paper
Rich sheet substrate (10), An adhesive (11) is applied on one entire surface of the sheet substrate (10).
Of the same size as the sheet substrate (10) adhered through
Adsorbable and removable sheet material (15), Attaching on the entire surface of the sheet material (15) which can be adsorbed and desorbed
The same size as the attached and detachable sheet material (15)
An adsorption release side release paper (12); Adhesive applied to the other entire surface of the sheet substrate (10)
The same size as the sheet substrate (10) attached on the agent (11).
Pressure-sensitive adhesive side release paper (12), The adsorbable sheet material (15) is made of polypropylene.
Film with high flexibility and flexibility, such as polyethylene and polyethylene
One side of the base material (16) has a continuous fine pore (17).
A urethane foam adsorption layer (18) having a mounting structure is formed.
The detachable sheet material (15) and the sheet
One corner of the base material (10) is integrally cut into corners.
A cut (13) is formed, The suction release surface side release paper (1
The corner of 2) is a knob (14), and
The corner of the adhesive-side release paper (12) is formed by the corner cutting portion.
(13) The knob is cut so that it protrudes more
It is a corner cut knob (19) shorter than (14), The removable surface side of the detachable sheet material (15);
The adhesive side of the sheet substrate (10) can be easily identified.
And the release paper (12) can be easily released.
It is characterized by being constituted as follows Double-sided adhesive sheet.