KNIT MAGAZINE

What are the characteristics of polyurethane, a stretch material you should know?

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Hello. It’s Yassi!!

Suddenly, do you know the manga One Piece? It’s my favorite manga. The content is that a boy who ate the Devil Fruit, which turns into a rubber human when eaten, gathers friends and adventures. It’s the most entertaining story with laughter and tears.

Therefore! !! In connection with rubber, this theme is polyurethane.

So what kind of material is polyurethane? !! I will unravel it ♪

table of contents

  • What is polyurethane?
  • Polyurethane has a lifespan of 2 years! ??
  • Benefits of polyurethane
  • summary

Hello. It’s done! !!

Suddenly, do you know the manga One Piece? It’s my favorite manga. The content is that a boy who ate the Devil Fruit, which turns into a rubber human when eaten, gathers friends and adventures. It’s the most entertaining story with laughter and tears.

Therefore! !! In connection with rubber, this theme is polyurethane.

So what kind of material is polyurethane? !! I will unravel it ♪

table of contents

  • What is polyurethane?
  • Polyurethane has a lifespan of 2 years! ??
  • Benefits of polyurethane
  • summary

What is polyurethane?

It is the only elastic fiber that stretches more than 500% like rubber, and production began in the United States in 1959. By the way, it is called spandex in the United States.

Applications for clothing include those with elasticity as a function, synthetic leather coatings that resemble leather products, and other uses as adhesive resin without sewing fabrics.

Is the life of polyurethane 2 years?!

lifespan?? What do you mean?!

Polyurethane is very useful for giving stretch to clothes, but it has a big weakness. Its weakness is life.

Polyurethane, a material used in clothing, has the unavoidable weakness of being gradually decomposed over time under the influence of body fat, moisture in the air, atmospheric gas, heat, and ultraviolet rays.

This phenomenon is called [deterioration over time]. This is said to be about 2 to 3 years, but it may be even shorter depending on the usage situation.

Therefore, it is important to understand that polyurethane materials will deteriorate even if they are not worn.

What are the benefits of polyurethane?

It is not only characterized by deterioration over time. I will explain that polyurethane is an excellent material in comparison with elastic rubber.

Since it has greater elasticity than rubber, it is possible to make elastic fibers by making the best use of elasticity and blending. Since it can make fibers finer than rubber, it is more versatile. Rubber cannot be dyed, but polyurethane can be dyed freely.

This is an important point for clothing.

Furthermore, it is stronger than rubber and is 450% to 800% stronger than rubber. It’s strong ~ ♪

summary

Polyurethane is an indispensable material for giving stretch to clothes and coating leather. Therefore, I would like to get along well with the characteristic of polyurethane [deterioration over time].

Every material has its advantages and disadvantages. Knowing that will change the way you handle it and you will be able to wear your favorite clothes for a long time.

See you next time ★