JP2974856B2 - Base material for adhesive tape and method for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive tape which is processed into an adhesive tape having applications such as packing and curing masking .
It is related to the base material and has good hand-cutting properties and is thin.
Adhesive tape that can make the adhesive tape that can be elongated to a certain
And a method for producing the same.

[0002]

2. Description of the Related Art Adhesive tape base processed into adhesive tape
As the woven fabric used for the material, a moss
Phosphorous fabrics are used. Fabrics using spun yarn while However, because the thickness of the fabric itself is thick, using the same
It is difficult to increase the length of the adhesive tape because it is thick.

[0003] In order to improve this disadvantage, to use the fabric that had use a lower polyester fibers and acetate fibers strength
That substrate for adhesive tape is, Japanese Utility Model 57-158784 Patent Publication No.
Broadcast, Japanese Utility Model 62-75047 JP and real No. 4-64
It proposed in 3 JP.

[0004]

[SUMMARY OF THE INVENTION However, the above <br/> Japanese Utility Model 57-158784 discloses and Utility Model 62-750
The use is polyester <br/> Le fibers less special strength shown in 47 JP, complicated processes for the production of the polyester fiber is required, the production cost bulk Mutoyuu problem is there.

[0005] In addition, as disclosed in Japanese Utility Model Laid-Open No. 4-643 ,
Acetate fiber strength is weak to have, fabrics to use this
To increase the number of warp yarns in the fabric,
The strength required for use in
Fabric to obtain a thinner base material for adhesive tape
There is a problem that it is not suitable.

Therefore, the problem to be solved by the present invention is as follows:
It is easy to cut and thin, making it longer
Adhesive tape substrate that can be made into a possible adhesive tape, that is,
Thin and easy-to-cut adhesive tape base material, and its
It is to provide a manufacturing method.

[0007]

The above-mentioned problems are described below.
According to the pressure-sensitive adhesive tape base material of the present invention and the manufacturing method thereof
Is solved.

That is, the base material for an adhesive tape of the present invention
Degree 99-200d, single yarn strength 1.4-2.0g / d, elongation
Warp of 8-23% acetate long fiber and fineness 5
0-150d, with polyester fiber of elongation 35% or less
Base material for adhesive tapes using a woven fabric with
And the longitudinal tensile strength of the adhesive tape base material is 22 to
30kg / 5cm width, vertical tensile elongation range of 8-18%
It is in the box.

Further , the pressure-sensitive adhesive of the present invention comprising the above structure
In the base material for tape, the thickness of the base material
It is preferably 0.2 mm or less.

[0010] Further, a method for producing a substrate for an adhesive tape of the present invention.
Is used for warp and polyester fibers of acetate long fiber.
Of adhesive tape base material using woven fabric with weft
In the weaving method, the a
Under the stretch condition of 6 to 30%
After subjecting to Ising treatment, then weaving
How to make a substrate for adhesive tape using the obtained woven fabric
Become.

In order to improve the hand-cutting property of the adhesive tape base made of a woven fabric , the strength of the warp of the woven fabric must be improved.
However, it is necessary to use a woven fabric using a low-yarn.
In order to make a thin adhesive tape base material,
By using yarn with high single yarn strength as warp
It is necessary to use a woven fabric with a reduced number of warps.

Here, the above fineness of 99 to 200d, single yarn
Acetate with a strength of 1.4 to 2.0 g / d and an elongation of 8 to 23%
G warp by long fiber, fineness 50-150d, elongation 35
% Of polyester fiber and weft and woven fabric
For a pressure-sensitive adhesive tape, comprising:
The vertical tensile strength of the substrate is 22-30kg / 5cm width, vertical
Base for adhesive tape with tensile elongation in the range of 8-18%
The material is thin, specifically, 0.2 mm or less
Because of its good hand-cutting properties,
Easy to cut by using adhesive tape with base material
It becomes a thin adhesive tape that is good and can be lengthened.

[0013] Further, ordinary acetate filaments have a
Is 1.2 to 1.4 g / d, and the elongation is 25 to 30%.
But this is subjected to the sizing process under stretched condition
Thereby increasing the single-strength of the acetate filament,
Elongation can be reduced.

[0014] The above 6 to 30% stretched shape
The sizing process under the condition
As a warp that can be applied to woven fabric used as a base material for adhesive tape
Properties of acetate long fibers, i.e., single yarn strength of 1.4 to
Acetate length with 2.0 g / d, elongation 8-23%
Can be fiber.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a base material for an adhesive tape of the present invention and its production
A specific configuration of the manufacturing method will be described with reference to examples .

[0016] Example 1 120d / 32 filaments of acetate filaments, after Tsu taken up on a beam at warp density 76 present / inch, and exit wound from the bead <br/> beam, of 9.7% Under stretch condition
Sized. Of the obtained acetate filaments
Fineness (denier), single yarn strength (g / d) and elongation
(%) Is as shown in Table 1.

Subsequently, after the sizing process is completed,
Acetate filaments with a yarn density of 76 yarns / inch and a fineness of 100
d / 24 filament , polyester fiber with elongation of 12%
Weaving with a weft consisting of
A woven fabric for working was obtained.

Next, an anchor coat agent is added to the above woven fabric.
And facilities primer treatment by applying and then lamination of low density polyethylene on the back, and by performing a peeling treatment by shea recone release agent, adhesive tape
A substrate was obtained. Longitudinal tensile strength of the obtained adhesive tape base material
Degree (kg / 5cm width), longitudinal tensile elongation (%), and thickness
(Mm) is as shown in Table 2.

Examples 2 to 4 Strain of acetate long fiber in sizing process
13.8% (Example 2), 23% (Example
Example 1 except that 3) and 24.7% (Example 4) were used.
Draw as warp for weaving in the same way as described in
An acetate long fiber was obtained. This acetate filament
Fiber fineness (denier), single yarn strength (g / d), and elongation
(%) Is as shown in the predetermined column of [Table 1]. Continued
The warp density after finishing the above sizing process is 76 yarns / in.
ch acetate long fiber and fineness 100d / 24 filament
And a weft made of polyester fiber with an elongation of 12%.
The woven fabric woven using was processed in the same manner as in Example 1,
A substrate for an adhesive tape was obtained. Of the obtained adhesive tape substrate
Vertical tensile strength (kg / 5cm width), vertical tensile elongation
(%) And thickness (mm) are shown in predetermined columns of [Table 2].
It is on the street.

Example 5 to Example 6 150 d / 39 filament acetate filaments were
After winding into a beam at a yarn density of 76 yarns / inch,
Unfolded from under the stretch condition of 11.4%
Sizing treatment (Example 5) or 19.9%
Sizing process under reticle condition (Example 6)
Was. Fineness (denier) of the obtained acetate filaments,
Yarn strength (g / d) and elongation (%) are as shown in Table 1.
It is. Next, the warp yarn after the above sizing process
Use acetate filaments with a density of 76 fibers / inch.
In the same manner as in Example 1, a substrate for an adhesive tape was obtained. Got
Longitudinal tensile strength of adhesive tape substrate (kg / 5cm
Width), longitudinal tensile elongation (%), and thickness (mm)
It is as shown in [Table 2].

The base for the adhesive tape described in each of the above embodiments
As can be seen from Table 2, the materials are all thin
Regardless, it has the necessary strength for the adhesive tape base material,
Moreover, the hand-cutting property is good.

Comparative Example 1 Acetate aligned as warp for weaving in the same manner as described in Example 1 except that the stretch of the acetate long fiber in the sizing treatment step was set to 0%.
A long fiber was obtained. The fineness of this acetate filament (Denny
), Single yarn strength (g / d), and elongation (%) are as shown in Table 1.
It is as shown in the predetermined column.

Subsequently, after the sizing process is completed,
Acetate filaments with a yarn density of 76 yarns / inch and fineness of 100
d / 24 filament, polyester fiber with elongation of 12%
A woven fabric using the weft consisting of
Thus, a substrate for an adhesive tape was obtained. The obtained viscosity
Vertical tensile strength (kg / 5cm width) of base material for adhesive tape,
The longitudinal tensile elongation (%) and thickness (mm) are as shown in Table 2.
As shown in the fixed column, the acetate length used for the warp
Before processing into adhesive tape base material due to insufficient fiber strength
Of the weaving process is not smooth, and the weaving process is poor
won.

In order to improve the passability of the weaving process,
Increases the fineness of the acetate filament used for warp
Acetate filaments used for warp yarns
Increasing the fineness of the fiber increases the thickness (mm) of the resulting fabric.
For thin adhesive tapes that can be made longer
A base material for a pressure-sensitive adhesive tape that cannot be obtained cannot be obtained.

[0025]

[Table 1]

[0026]

[Table 2]

[0027]

According to the present invention , the base material for an adhesive tape of the present invention is obtained by processing.
The adhesive tape is a woven fabric applied to the adhesive tape.
Due to the characteristics of, it is easy to cut and thin
It becomes an adhesive tape that can be lengthened.

The method for producing a substrate for an adhesive tape of the present invention
According to the above, it is easy to cut and it is thin
Required to obtain an adhesive tape that can be made longer
Easy and thin base material for adhesive tape
Properly manufactured.

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) D03D 1 / 00,15 / 00

Claims (4)

(57) [Claims] 1. A fineness of 99 to 200d and a single yarn strength of 1.4 to
2.0 g / d, 8 to 23% elongate acetate filament
Warp and poly with a fineness of 50-150d and an elongation of 35% or less
Adhesive tape using woven fabric with weft of ester fiber
Base material for tapes, and the adhesive tape base material
Tensile strength 22-30kg / 5cm width, longitudinal tensile elongation
Is 8 to 18%.
Wood. 2. The acetate long fiber used for the warp is from 6 to
Subject to sizing under 30% stretch
The substrate for an adhesive tape according to claim 1. 3. The thickness is not more than 0.2 mm.
The base for an adhesive tape according to claim 1 or 2,
Wood. 4. A warp and a polyester made of an acetate long fiber.
Adhesive tape using woven with tellur fiber and weft
In the method of manufacturing the base material for yarn, it is aligned as a warp for weaving
6 to 30% stretch of acetate long fiber
After sizing under conditions, weaving
And using the woven fabric obtained by
A method for producing a base material for an adhesive tape.