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Flax Fiber Properties and Uses With Manufacturing Process and Types

Flax Fiber- | Properties | Uses |

Linen is a textile made from the fibers of the flax plant. Flax fiber is also known as Linen Fiber. In this article; we are going to learn about Flax Fiber Properties and Uses With Manufacturing Process and Types

Properties of Flax Fiber

Linen is comfortable, good strength, twice as strong as cotton, hand-washable or dry-cleanable, crisp hand tailors, well absorbent dyes and prints, well lightweight to heavyweight, no static or pilling problems, fair abrasion-resistant, etc. Basically there are two types of properties of linen fibers. One is physical properties and another is chemical properties.

Physical Properties of Linen: 

  1. Tensile Strength: Linen is a strong fiber. It has a tenacity of 5.5 to 6.5 gm/den. The strength is greater than cotton fiber.
  2. Elongation at break: Linen does not stress easily. It has an elongation at break of 2.7 to 3.5 %.
  3. Color: The color of linen fiber is yellowish to grey.
  4. Length: 18 to 30 inches in length.
  5. Luster: It is brighter than cotton fiber and it is slightly silky.
  6. Elastic Recovery: Linen fiber has not enough elastic recovery properties like cotton fiber.
  7. Specific Gravity: Specific gravity of linen fiber is 1.50.
  8. Moisture Regain (MR %): Standard moisture regain is 10 to 12%. 
  9. Resiliency: Very poor.
  10. Effect of Heat: Linen has excellent resistance to degradation by heat. It is less affected than cotton fiber by the heat.
  11. Effect of Sun Light: Linen fiber is not affected by the sunlight as other fiber. It has enough ability to protect sunlight.

(Linen Fiber Properties and Uses With Manufacturing Process and Types)

Chemical Properties of Linen: 

Linen is a natural cellulosic fiber and it has some chemical properties. Chemical properties of the linen fiber are given below:

  1. Effect of Acids:  Linen fiber is damaged by highly densified acids but low dense acids do not affect if it is wash instantly after the application of acids.
  2. Effects of Alkalis:  Linen has excellent resistance to alkalis. It does not affect by the strong alkalis.
  3. Effects of Bleaching Agents:  Cool chlorine and hypo-chlorine bleaching agent does not affect the linen fiber properties.
  4. Effect of Organic Solvent:  Linen fiber has a high resistance to normal cleaning solvents. 
  5. Effect of Micro Organism:  Linen fiber is attacked by fungi and bacteria. Mildews will feed on linen fabric, rotting, and weakling the materials. Mildews and bacteria will flourish on linen under hot and humid conditions. They can be protected by impregnation with certain types of chemicals. Copper Naphthenate is one of the chemicals.
  6. Effects of Insects:  Linen fiber does not attack by moth-grubs or beetles.
  7. Dyes:  It is not suitable for dye. But it can be dye by direct and vat dyes.

Read: Coir Fiber-Types | Manufacturing Process | Properties & Uses

Uses of Linen Fiber

Historically, linen was one of the world’s most popular textile products. From Ancient Egypt to Renaissance Ireland, many cultures used linen as their predominant source of apparel and homeware fiber.

These days, linen is used for many of the same purposes that it was used historically, but this fiber makes up a drastically smaller percentage of the global textile market. Additionally, many of the original applications of linen, such as shirts and pants, have largely been replaced with cotton.

In hot climates, however, linen is still used to produce everyday clothing in large quantities. People living in near-equatorial regions can benefit from linen’s high moisture-wicking but low moisture-retaining profile and the natural white color of this fabric inherently reflects heat-inducing solar rays.
Linen Fiber- Properties | Uses | Manufacturing Process & Types| Types of Linen Fiber, Manufacturing Process of linen fiber,Physican Properties of Linen.

 

Manufacturers can use linen to make practically anything commonly made from cotton or wool. For instance, this fabric can be used to make shirts, pants, dresses, skirts, jackets, blazers, vests, and a wide variety of other casual and formal wear. Additionally, linen is still a popular material for lingerie and underwear, and it’s also commonly used in nightgowns and dressing robes.

Outside the realm of apparel, linen remains popular as a homeware material. It’s especially common to find napkins and tablecloths made from linen, and while cotton is more popular for towels these days, it’s also possible to find hand towels, kitchen towels, and bath towels made from linen.

Bedding is another arena in which cotton has all-but supplanted linen, but it’s still possible to find linen pillowcases and sheets. One advantage of linen in bedding is this textile’s durability; it’s possible to achieve higher thread counts in linen than in cotton without encountering durability issues. One of the lone industrial applications of linen is in the production of canvases for painting.

 

(Linen Fiber Properties and Uses With Manufacturing Process and Types)

Manufacturing Process

The constituent material for linen fabric is the cellulose fiber found in the stems of linen plants. Like the stalks of many similar plants, linen stalks consist of a woody, reedy interior section and a fibrous, stringy exterior section.

To prepare for linen production, manufacturers of this fiber start by separating flax fibers from the woody interior of flax stems. Traditionally, this step has been accomplished by soaking raw flax stalks, but these days, manufacturers may use chemicals to achieve the same effect. Before flax fibers are spun into yarn, these chemicals are washed away, but residual toxic substances may remain on chemically-separated flax fiber.

Linen Fiber- Properties | Uses | Manufacturing Process & Types| Types of Linen Fiber, Manufacturing Process of linen fiber,Physican Properties of Linen.

1. Planting

Flax plants are ready for harvesting after about 100 days of growth. Since flax plants do not tolerate heat, they must be planted in the cooler part of the year to avoid crop death.

2. Growth

These days, flax seeds are usually sown with machines. Since flax plants don’t effectively prevent the incursion of weeds, herbicides and tilling are generally used to prevent reduced yields in flax crops.

3. Harvesting

Once flax stems are yellow and their seeds are brown, these plants are ready to be harvested. While it’s possible to harvest flax by hand, machines are usually used for this process.

4. Fiber Separation

After flax stalks are harvested, they are processed through a machine that removes leaves and seeds. Then, manufacturers separate flax’s fibrous outer stalk from its soft, woody interior. This process is called retting, and unless it is expertly accomplished, the delicate flax fibers used for textile production could be damaged.

5. Breaking

Next, the decomposed stalks are broken up, which separates the unusable outer fibers of flax stalks from their usable inner fibers. To accomplish this step, the flax stalks are sent through rollers that crush them and then rotating paddles remove the outer fibers from the stalks.

6. Combing

Now that the inner fibers are separated from the other fibers, they can be combed into thin strands. Once the fibers have been combed, they will be ready for spinning.

7. Spinning

The spinning of flax yarn used to be accomplished with a foot-powered flax wheel, but these days, flax producers use industrial machines for this process. To spin flax fibers, these short, combed fibers are connected with devices called spreaders, and the resulting strings, called rovings, are then ready to be spun.

8. Reeling

After being spun on a spinning frame, the resulting yarn is reeled onto a bobbin. To ensure that flax yarn won’t fall apart; it’s necessary to perform this reeling process in wet; humid conditions and the spun yarn is run through a hot water bath to further ensure yarn cohesion.

9. Drying

Finally, flax manufacturers dry the finished yarn and reel it onto bobbins. The yarn is then ready to be dyed, treated; and made into apparel, homewares, or other types of textile products.

Types of Flax Fiber

While all types of linen fabric are derived from processed and spun flax fiber; there are four main variations in weaving techniques that result in different types of linen fabric:

Linen Fiber- Properties | Uses | Manufacturing Process & Types| Types of Linen Fiber, Manufacturing Process of linen fiber,Physican Properties of Linen.

1. Damask linen

This type of linen is ornate and delicate; and it is formed on a jacquard loom to produce an end result that’s similar to embroidery. Damask linen isn’t designed for everyday use; and it’s more common in decorative items.

2. Plain-woven linen

Plain-woven linen is commonly used to make dish towels, cotton towels, and hand towels. Since it is relatively loosely-woven; it is highly durable, but it doesn’t suffer from a significant decrease in durability.

3. Loosely-woven linen

Loosely-woven linen is highly absorbent, but it is the least durable type of linen fabric. It is commonly used to make reusable diapers and sanitary napkins.

4. Sheeting linen

Linen apparel is usually made from sheeting linen due to its untextured; soft surface, and close weave. This type of linen usually has a higher thread count than other forms of the linen fabric.

Flax Fiber Properties and Uses

 Linen Fabric Impact the Environment

The main environmental concern regarding linen production is the release of chemicals used in the retting process into surrounding ecosystems. Most commonly; alkali or oxalic acid are used to separate flax fibers from the woody interior of flax stems; and while chemical retting of flax is undeniably faster and more efficient; both alkali and oxalic acid are toxic in relatively low concentrations.

Therefore, water retting of flax stems is preferred for environmental reasons; and to be certified as organic; it’s generally necessary for flax fiber to be water-retted. Since flax is already such an expensive fiber; however, water retting simply compounds on this increased cost to make organic flax less accessible to most consumers.

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