JP2655567B2 - Laminate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a laminated product obtained by coating a woven or knitted fabric made of a twisted polyester multifilament Taslan yarn with a thermoplastic resin. The present invention relates to a laminate that prevents stains caused by invading dirt, fungi such as bacteria, mold, and the like, thereby preventing the appearance from being lost.

[0002]

2. Description of the Related Art Conventionally, as a means for preventing such intrusion of rainwater, there is a cloth in which a thermoplastic resin is laminated on both sides of a water-repellent cloth (Japanese Patent Publication No. 5-67420). This laminated body literally prevents water from entering with a water repellent, however, applying this water repellent causes poor adhesion between the base fabric and the resin and causes a decrease in peel strength. It has become. Also, the price of the water repellent is expensive,
There is a problem that the number of steps for giving the number increases. further,
There is also a thing which aimed at the improvement of adhesiveness with resin by using a base cloth using Taslan yarn, but this is also one that aimed at the adhesive effect by increasing the bonding area using a loop of Taslan yarn, The use of Taslan thread alone does not stop rainwater from entering by capillary.

[0003]

SUMMARY OF THE INVENTION The present invention relates to a laminated product in which a woven or knitted fabric made of a polyester multifilament is coated with a thermoplastic resin, the penetration of which is prevented by a capillary phenomenon such as rainwater from a cut surface of the laminated product. The task is to provide.

[0004]

The present invention employs the following means to solve the above-mentioned problems. That is, the present invention relates to a laminated body obtained by coating a woven or knitted material with a thermoplastic resin, comprising a twisted yarn of a Taslan yarn in which the yarn constituting the woven or knitted material is entangled with one to three types of polyester multifilament yarns. The number of twists of the twisted yarn is in the range of 50 T / m to 200 T / m, and the thickness of the constituent filaments of the polyester multifilament is in the range of 0.5 denier to 10 denier. is there.

That is, the present invention relates to a laminate comprising a polyester multifilament yarn and a woven or knitted fabric coated with a thermoplastic resin, wherein the yarn constituting the woven or knitted fabric is combined with one to three kinds of polyester multifilaments. It is composed of twisted yarns, and the thickness of the used yarn before entanglement is 250 denier to 3000 denier when one kind of combination is used, and the filament cant is 0.1 denier.
5 denier / filament to 10 denier / filament after entanglement with a certain yarn / denier ratio before entanglement is 1.05 to 1.05
1.6, and one kind of used yarn before entanglement in combination of two or three kinds is 50 denier to 500 denier and the filament count is 0.5 denier / filament to 10 denier / filament, The thickness of other yarns is 250 denier to 3000 denier, the filament count is 2.5 denier / filament to 30 denier / filament, and the denier ratio after entanglement / before entanglement is 1.03 to 1.6. One thread, 50 T / m
A laminated body made of a woven or knitted Taslan yarn, characterized in that the yarn is twisted to 200 T / m.

Hereinafter, the present invention will be described in detail. The thermoplastic resin mentioned here is polyethylene, polypropylene,
Polystyrene, methacrylic resin, polyvinyl chloride, polyvinylidene chloride, etc. The term “coating” refers to a form in which a woven or knitted material is wrapped with a resin.
Examples include dipping, laminating, topping, and blowing (spraying method).

The yarn constituting the woven or knitted fabric must be a twisted polyester multifilament Taslan yarn.
This is because the entanglement by the Taslan process blocks the longitudinal gap conduit during the multifilament bundle, and the blocking portion is squeezed by the twisting effect to further ensure the blocking effect (of course, a loop is formed on the surface of the yarn). The easy unwinding effect that makes it difficult to come out is necessary for weaving and knitting, but it is merely an improvement in weaving and knitting and is not relevant to the present invention). This twisting condition is 50T /
The range of m to 200 T / m is good. If it is less than 50 T / m, the tightening effect becomes loose and the blocking effect becomes weak. In addition, although the blocking effect is maintained even if it exceeds 200 T / m,
The yarn cross section is rounded and hardened, and the thickness of the woven or knitted material is also increased. Depending on the coating method, the resin basis weight increases. In addition, snares are more likely to be generated, which causes more trouble during knitting. Desirably 65 T / m
１２０120 T / m is the range.

[0008] When the woven or knitted fabric is formed of a single kind of Taslan yarn as the raw yarn, the raw yarn before the Taslan processing has a thickness of 250 to 3000 denier and a filament count of 0.5. Denier / filament to 10 denier / filament is good. For yarns less than 250 denier, the number of yarns / inch must be significantly increased to maintain the product's strong performance (Tasslan processing results in a thicker yarn, resulting in lower strength). The adhesive effect due to the bridge effect through the woven stitch of the resin is reduced. If it exceeds 3000 denier, the uniformity of the confounding properties starts to decrease.

[0009] In addition, when the filament count is less than 0.5 denier, a sufficiently high tenacity cannot be obtained, and when the filament count exceeds 10 denier, the entangled state is deteriorated due to the Taslan processing with a single yarn. Desirably, 1.5 denier / filament to 7 denier / filament is good. Moreover, the denier ratio (after entanglement / before entanglement) before and after Taslan processing is 1.05 to
1.6 is good. If it is less than 1.05, the degree of entanglement is poor and the capillary blocking effect of the present invention cannot be obtained. If it exceeds 1.6, the strength of the entangled yarn is low.

When two or three types of yarns are combined, the twisting conditions are the same as described above, but one of the yarns before the Taslan processing is 50 denier to 500 denier and the filament count is 0.5 denier. / Filament ~
10 denier / filament is good. This is because this yarn acts as an intertwining yarn for the other yarn groups in the combination. If it is less than 50 denier, it is insufficient to obtain the blocking of the capillary of the present invention. The filament count is the same as described in the section of one kind of combination.

[0011] The other one or two types of yarns are 250 denier or more.
With 3000 denier, the filament count may be from 2.5 denier / filament to 30 denier / filament. This is a yarn that demonstrates the strength of Taslan yarn when this yarn is combined with this yarn. If it is less than 250 denier, the number of densely driven yarns must be increased from the viewpoint of product strength.
Depending on the coating method, the bridging effect of the resin is reduced. If it exceeds 3000 denier, the uniformity of the entanglement with the loop yarn may be reduced. If the filament count is less than 2.5 denier, the interlocking effect with the loop yarn cannot be obtained as intended, and if it exceeds 30 denier, the yarn rigidity increases and the woven or knitted fabric lacks flexibility. Was. For this reason, the raw yarn to be a loop yarn is preferably 75 to 250 d and a filament count of 1.0 to 5 deniers, and the preferable range of the core raw yarn is 500 to 2000 denier and a filament count of 3.0 denier /. Filament ~ 2
5 denier / filament. The denier ratio after entanglement / before entanglement is preferably in the range of 1.03 to 1.6.
When the ratio is less than 03, the effect of the present invention is hardly obtained, and 1.6 is obtained.
If the ratio exceeds the above range, the effect of the present invention is obtained, but the strength per denier becomes low, and the loops protrude greatly over the entire Taslan yarn, which is not preferable because the weaving and knitting properties are hindered.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments.
The measuring method used is as follows. I. Denier was performed according to JIS L-1013. In particular,
The mass per 9000 m in length was expressed in grams.

B. Wicking height (mm) The laminate was cut into strips having a width of 2 cm and a length of 20 cm, suspended directly in a 1% solution of a dye (red) by 10 mm, and allowed to stand for 60 minutes. Evaluation was made based on the suction height due to the capillary action at this time.

C. Waterproofing effect The water surface is raised at a speed of 60 ± 3 cm / min by the method A (low water pressure method) of the water resistance test of JIS L-1092 5-1.
A method was adopted in which the system was stopped at 1000 mmH ₂ O and allowed to stand, and the time until water leaked was measured.

D. Snare generation Prepare 50 cm of a pre-twisted yarn, prepare a "measuring tool" capable of measuring 50 cm, and place the twisted yarn along the measuring
Tension between cm and 50 cm. Next, while the one end was fixed, the other end was slowly approached to the fixed end, and the position at which the snare occurred in the sagging twisted yarn itself was represented by the distance from the start. If the number of twisted yarns is small, the distance to the entanglement is long, and if it is large, the entanglement will be caused by a little slack.

E. Laminate thickness Peacock dial thickness gauge (H type)
Was measured.

EXAMPLE 1 One multifilament yarn of 1000 denier 192 filament of polyester fiber was guided into an entanglement nozzle.
Under the air pressure of 6 kg / cm ² , the supply yarn speed / drawing yarn speed was 1.
Taslan yarn was produced under the conditions of 15 times. The thickness of this Taslan yarn was 1160 denier, and the denier ratio after entanglement / before entanglement was 1.16. The measurement is based on JIS L-
1013. The resulting Taslan yarn is S, 30, 30,
Twisted yarns of 0, 120 and 240 T / m were formed into a woven fabric by driving the warp and weft yarns at a rate of 20 yarns / inch, and coated with white vinyl chloride resin from the front and back to a thickness of 0.3 mm each. The results are shown in Table 1.

[0018]

[Table 1]

The following is confirmed from Table 1. That is, NO2 and NO3 of the present invention had no wicking phenomenon at all and also had a sufficient waterproofing effect. On the other hand, NO1 was insufficient in the squeezing effect due to a small number of twists, and suction development was observed. With NO4, the suction-inhibiting effect was maintained, but because the number of twists was large, the film thickness at the intersection of the warp and the weft was thin, and the waterproof effect was not sufficient.

Example 2 A combination of a 500 denier 96 filament multifilament yarn of polyester fiber and a 100 denier 96 filament multifilament yarn was combined with 3% of 500 denier overfeed in an entanglement nozzle under an air pressure of 7 kg / cm ^2. , 100 denier overfeed 4
It was entangled at 0%. The obtained Taslan yarn denier was 650 denier, and the denier ratio after entanglement / before entanglement was 1.09. This Taslan yarn is 30,6 with S twist
Twisted yarn having a twist of 0, 120, 240 T / m was driven into the warp and weft at a rate of 25 yarns / inch to form a woven fabric, which was coated with a white vinyl chloride resin from both sides. Table 2 shows the results.

[0021]

[Table 2]

Table 2 confirms the following. That is, NO6 and NO7 were within the range of the present invention, and there was no wicking phenomenon and the waterproof effect was sufficient. In the case of NO5, the same phenomenon as that of NO1 was insufficient, and in the case of NO8, the thickness of the Taslan yarn was too small.
Because of its small size as compared with NO4, there was a waterproof effect, but the generation of Nasul was extremely troublesome.

[0023]

The laminate of the present invention can be prepared without using a water repellent.
It has a remarkable effect of preventing infiltration by rainwater and other capillary effects and preventing the action of dirt, bacteria, and mold.

Claims (3)

(57) [Claims] 1. A laminated body in which a woven or knitted material is covered with a thermoplastic resin, the yarn constituting the woven or knitted material is a twisted Taslan yarn obtained by being entangled with one to three kinds of polyester multifilament yarns, The number of twists of the twisted yarn is 50 T / m to 200
A laminate having a thickness of 0.5 to 10 denier, wherein the thickness of the polyester multifilament is in the range of 0.5 to 10 denier. 2. The yarn constituting the woven or knitted fabric is composed of one kind of polyester multifilament taslan yarn twisted yarn,
The lamination according to claim 1, wherein the thickness of the used yarn before entanglement is in the range of 250 denier to 3000 denier, and the denier ratio after entanglement / before entanglement is in the range of 1.05 to 1.6. body. 3. The yarn constituting the woven or knitted fabric is composed of two to three types of polyester multifilament twisted Taslan yarn, and the denier ratio after entanglement / before entanglement is in the range of 1.03 to 1.6. The one kind of polyester multifilament before entanglement has a thickness of 50 denier to 500 denier, which is composed of the filament of 0.5 denier to 10 denier according to claim 1, and the thickness of another type of yarn. The laminate according to claim 1, wherein the denier is from 250 denier to 3000 denier, and the thickness of the constituent filament is in the range from 2.5 denier to 30 denier.