JPS60185575A - Sleeve cloth for wind surfing - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a windsurfing sleeve cloth. More specifically, when a canvas pole used for windsurfing is deflected by the wind while riding, the sleeve cloth into which the ball is inserted smoothly follows the deflection of the pole, and the ball returns to its original position. When it comes to sleeve cloth that does not leave any distortions such as wrinkles or streaks.

Conventional technology: As a conventional windsurfing sleeve cloth,
Fabrics mainly made of nylon fibers or polyester fibers are used.

However, although the nylon fiber sleeve cloth has good ability to follow the deflection of the ball, it has low morphological stability when the ball is restored and has poor stretch back properties. In particular, there is a large difference in elongation and distortion when dry and wet, and when used, wrinkles and bulges remain in the sleeve, deforming the windsurfing cloth and impairing running performance.

On the other hand, polyester fiber sleeve cloth has good ability to follow the deflection of the ball, but it also has poor morphological stability when the ball is restored.

Windsurfing smooth operation and sleaze part,
Furthermore, a sleeve cloth that is more suitable than K is desired because of the stability of the shape of the sail cloth as a whole.

OBJECTS OF THE INVENTION In view of the current situation regarding sleeve cloths for windsurfing, it is an object of the present invention to provide a sleeve cloth for windsurfing that has good followability to the deflection of a ball and good stretch bankability.

The constitution of the invention, that is, the present invention is ``a woven fabric made of polyester filament yarn, which has an elongation of 3% or more in each of the warp, weft, and diagonal directions under a load of 35 tons in dry and wet conditions.

3 inches or less, 10 inches or more, fatigue distortion in warp and latitude directions
(・Sleeve cloth for windsurfing that has a deviation of 2 inches or less and is coated on at least one side with melamine-formaldehyde resin.)

Polyester here refers to polyethylene terephthalate,
It refers to polybutylene terephthalate or a copolymer containing these repeating units as main components and adding a third component, but polyethylene terephthalate is preferable in terms of stress characteristics, weather resistance, etc. As the polyester filament yarn, flat yarn or woo-processed yarn is used.

In order to provide stretchability in the warp and diagonal directions, that is, to make the elongation in the warp, weft, and diagonal directions 3% or more, 3 inches or less, and 10 or more, respectively, high elongation filament-processed yarn is used as the warp, and the weft is A low elongation flat yarn or woolly textured yarn is used.

In order to keep fatigue strain in both warp and weft directions to 2% or less, a fabric having the above-mentioned disadvantages is subjected to stress-free heat treatment. Further, in order to impart stretch back properties to the fabric, resin processing is performed using a high concentration melamine-formaldehyde resin.

EXAMPLES The method for manufacturing the windsurfing sleeve cloth of the present invention will be specifically explained with reference to the following examples.The obtained windsurfing sleeve cloths were evaluated according to the following method.

Elongation Using an Instron testing machine, crosshead speed 10
0wn/m + ) Measured under the conditions of rubber speed 200w/drive and gauge length 400mm.

Using a fatigue tensilon tester, the width was 50 m and the length was 500 Ill.
The test specimen of I was pulled with a load of 35 bonds, and then immediately
After repeating the operation of changing the load to 5 pounds 25 times, it was expressed as the residual strain S after being left for 5 minutes. The residual strain S is the length of the test piece before measurement 10 (=50011jI
).

This is the value calculated using the following formula, where j is the length after undergoing the fatigue test.

The water repellency is determined by JIS-L-1079-66, and the durability of water repellency is determined by JIS-L-1042-62.

I obeyed. Shape stability (durability) after washing is JIS-L
The shrinkage rate of the fabric after washing was evaluated according to the method of -1042-62.

EXAMPLE A polyethylene terephthalate filament processed yarn of 475 denier and 144 filaments was used as the warp and weft, and was woven into a plain weave at a weave density of 52 warps/inch and weft 42 threads/inch to obtain a gray fabric. The gray fabric is continuously refined and relaxed in a conventional manner (processing temperature: 95°C).

13 minutes using a liquid flow circulation dyeing machine.
The dyeing process was carried out at 0°C for 2 hours, and then dried at 120°C for 1 minute using a non-touch dryer. Next, an aqueous resin solution having the following formulation was applied to the fabric by a padding method, and then a tensionless heat treatment was performed at 200° C. for 45 seconds.

Resin liquid formulation M-6 (melamine-formaltehyde resin, made by Sumitomo Chemical) 2oo11/I ACX (amine catalyst, made by Sumitomo Chemical) 20 Asahi Guard 730 (silicon water repellent, made by Asahi Glass) ) 15 〃 The elongation, fatigue resistance, water repellency, and washing resistance shape stability of the obtained fabric are shown in Table IK.

Comparative Example 1 Nylon 6 filament 420 denier 48 filament was used as the warp and weft, and a plain weave was prepared at a weave density of 52 warps/inch and weft 32 threads/inch. The gray fabric was scoured, heat set, and dyed at 95°C in the usual manner.

After drying with a cylinder dryer for 2 hours), it was coated with an acrylic resin solution of the following formulation, dried, and heat set.

Formula of resin liquid Chris foot p-1130 (Acrylic resin; manufactured by Dainippon Ink) 70 parts Chrisfoot P-1330 (Acrylic resin; Dainippon Ink ■g) 30 parts Crispon NX (Polyurethane resin: Manufactured by Dainippon Ink) Part 3 Toluene 10 parts Table 1 shows the cord properties of the obtained fabric.

Comparative Example 2 After scouring and relaxing the gray fabric of Example 1 in the usual manner, it was dyed at 130°C for 2 hours using a liquid flow circulation dyeing machine, then dried, and then dyed at 200°C for 45 seconds. Tensionless heat treatment was applied.

Table 1 shows the cord properties of the obtained fabric.

Table 1 Note) Ability to follow the deflection of the hole Pull the tip of the pole with 35 bond force. Sleeve when stretched and bending the pole followability (thread breakage 9 surface wrinkles, fraying).

(Presence or absence of misalignment, etc.) Stretch back properties when restoring the pole Restorability of the sleeve portion when restoring the pole after bending as described above (Presence or absence of elongation, wrinkles, bulges, etc.) Compatibility of the sail cloth base fabric of the pole The followability of the sail cloth base fabric on the running performance of the sailcloth during deflection and restoration (presence or absence of elongation, wrinkles, and bulges in the base fabric). Good followability and stretch bank properties, and poor O2 were rated as ×.

Furthermore, in the table, "dry" means the measurement when the base fabric is dry, and "wet" means the measurement immediately after the base fabric has been immersed in water for one hour. Compared to conventional products, the gs has an extremely good ability to follow the deflection of the ball, so windsurfing operations can be performed smoothly.

Further, when the bent pole is restored, defects such as wrinkles, streaks, and bulges do not occur in the sleeve cloth itself and the sail cloth around the sleeve cloth.

Claims (1)

[Claims] A woven fabric made of polyester filament yarn, which has an elongation of 3 inches or more, 3 inches or less, and 10 inches or more in the warp, weft, and diagonal directions under a load of 35 pounds when dry and wet, respectively. A sleeve cloth for windsurfing, each having a fatigue strain of 2- or less and having at least one side coated with a melamine-formaldehyde resin.