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Read books online » Fiction » Textiles and Clothing by Kate Heintz Watson (best free ebook reader txt) 📖

Book online «Textiles and Clothing by Kate Heintz Watson (best free ebook reader txt) 📖». Author Kate Heintz Watson



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Shoddy.

WOOL
Character of Fiber

Wool is the most important animal fiber. Strictly speaking the name applies only to the hairy covering of sheep, but the hair of certain goats and of camels is generally classified under the same terms. The wool fiber is distinguished by its scale-like surface which gives it its felting and spinning properties. Hair as distinguished from wool has little or no scaly structure being in general a smooth filament with no felting properties and spinning only with great difficulty. Fur is the undergrowth found on most fur-bearing animals and has in a modified way the scaly structure and felting properties of wool.

MICROSCOPIC APPEARANCE OF WOOL FIBERS MICROSCOPIC APPEARANCE OF WOOL FIBERS
Value for Clothing

The great value of wool as a fiber lies in the fact that it is strong, elastic, soft, very susceptible to dye stuffs and being woven, furnishes a great number of air spaces, rendering clothing made from it very warm and light.

Quality of Wool

Climate, breed, and food influence the quality of the wool. Where the pasturage is barren and rocky, the wool is apt to be coarse.

MERINO RAMS MERINO RAMS
The Variety of Sheep Giving the Finest Wool.
Varieties of Sheep

There are supposed to be about thirty distinct varieties of sheep, nearly half of which are natives of Asia, one-third of Africa, and only four coming from Europe, and two from America. Wool is divided into two general classes—long and short staple, according to the average length of fiber. The long fiber wool is commonly carded, combed and spun into worsted yarn. The short fiber is usually carded and spun into woolen yarn. The short fiber obtained in combing long staple wool is called "noil." It is used for woolens.

Goat Wools

Alpaca, Vicuna and Llama wools are obtained from animals which are native to the mountains of Peru and Chile. The Angora goat, originally from Asia Minor, furnishes the mohair of commerce. This fiber does not resemble the hairs of common goats in any respect. It is a very beautiful fiber of silky luster, which constitutes its chief value.

ANGORA GOATS ANGORA GOATS
Fur

The fur of beavers and rabbits can be and is used in manufacture, either spun into yarn or made into felt. The fibers of both animals enter largely into the manufacture of felt hats.

Sorting Wool

The fleece of sheep after being sheared is divided into different parts or sorted, according to the quality of the wool, the best wool coming from the sides of the animal.

WOOL FIBERS WOOL FIBERS
a—Medium Wool; b—Camel's Hair; c—Diseased Fiber; d—Merino Wool; e—Mohair.
Scouring Wool

As it comes from the sheep, the wool contains many substances besides the wool fiber which must be removed before dyeing or spinning. This cleansing is called scouring. Before scouring, the wool is usually dusted by machines to remove all loose dirt. The scouring must be done by the mildest means possible in order to preserve the natural fluffiness and brilliancy of the fiber. The chief impurity is the wool grease or "yolk" which is secreted by the skin glands to lubricate the fiber and prevent it from matting.

ONE METHOD OF WOOL SORTING ONE METHOD OF WOOL SORTING
1—The Best Grade; 2—Lowest Grade; 3—Fair; 4—Medium Grade.
Scouring Agents

In the scouring of wool, soap is the principal agent. Soft soap made from caustic potash is generally used as it is less harmful than ordinary hard soda soap. Potassium carbonate—"pearl ash"—is often used in connection with the soap. If the water for scouring is hard, it is softened with pearl ash. The temperature of wash water is never allowed to go above 120° F. The scoured wool weighs from a little over a half to one-third or less of the weight of the fleece.

Hydroscopic Moisture

Wool has the remarkable property of absorbing up to 30 per cent or more of its weight of water and yet not feel perceptibly damp to the touch. This is called "hydroscopic moisture." To this property wool owes its superiority as a textile for underclothing.

WOOL SORTING WOOL SORTING

The thoroughly cleansed fiber is made up chiefly of the chemical substance keratin, being similar in composition to horn and feathers. In burning it gives off a characteristic disagreeable odor. It is a substance very weakly acid in its nature, for which reason it combines readily with many dyes. Wool resists the action of acids very well, but is much harmed by the alkalis, being dissolved completely by a warm solution of caustic soda. High temperature harms wool.

FLAX

FLAX FLAX

Next to wool and cotton, flax is used most largely in our textile manufactures. The linen fiber consists of the bast cells of certain species of flax grown in Europe, Africa, and the United States. All bast fibers are obtained near the outer surface of the plant stems. The pith and woody tissues are of no value. The flax plant is an annual and to obtain the best fibers it must be gathered before it is fully ripe. To obtain seed from which the best quality of linseed oil can be made it is usually necessary to sacrifice the quality of the fibers to some extent.

Treatment of Flax

Unlike cotton, flax is contaminated by impurities from which it must be freed before it can be woven into cloth. The first process to which the freshly pulled flax is submitted is that of "rippling" or the removal of the seed capsules. Retting, next in order, is the most important operation. This is done to remove the substances which bind the bast fibers to each other and to remove the fiber from the central woody portion of the stem. This consists of steeping the stalks in water.

A FIELD OF FLAX IN MINNESOTA A FIELD OF FLAX IN MINNESOTA
The Flax Must Be Pulled Up by the Roots to Give Fibres with Tapered Ends.
(Photograph of C. R. Dodge).

Retting

(1) Cold water retting, either running or stagnant water.
(2) Dew retting.
(3) Warm water retting.

RETTING TANK RETTING TANK
A—Inlet; B—Undisturbed Water; C—Bundles of Flax.

Cold water retting in running water is practiced in Belgium. Retting in stagnant water is the method usually employed in Ireland and Russia. The retting in stagnant water is more rapidly done, but there is danger of over-retting on account of the organic matter retained in the water which favors fermentation. In this case the fiber is weakened.

RETTING FLAX IN THE RIVER LYS, BELGIUM RETTING FLAX IN THE RIVER LYS, BELGIUM
From the Government Bulletin, "Flax for Seed and Fiber."
FIBERS OF FLAX FIBERS OF FLAX

In dew retting, the flax is spread on the field and exposed to the action of the weather for several weeks without any previous steeping. This method of retting is practiced in Germany and Russia. Warm water retting and chemical retting have met with limited success.

When the retting is complete, the flax is set up in sheaves to dry. The next operations consist of "breaking," "scutching," and "hackling" and are now done by machinery.

Breaking removes the woody center from the retted and dried flax by being passed through a series of fluted rollers. The particles of woody matter adhering to the fibers are detached by scutching.

Hackling

Hackling or combing still further separates the fibers into their finest filaments—"line" and "tow." The "flax line" is the long and valuable fiber; the tow, the short coarse tangled fiber which is spun and used for weaving coarse linen.

FLAX FLAX
A, Unthrashed Straw; B, Retted; C, Cleaned or Scutched; D, Hackled or Dressed.
(Photograph of C. R. Dodge).

HACKLING FLAX BY HAND HACKLING FLAX BY HAND
The "Tow" Is Seen at the Left and a Bunch of "Flax line" on the Bench.
(Photograph of C. R. Dodge, Special Agent U. S. Department of Agriculture.)
Characteristics of Linen

When freed from all impurities the chief physical characteristics of flax are its snowy whiteness, silky luster and great tenacity. The individual fibers may be from ten to twelve inches in length; they are much greater in diameter than cotton. It is less pliant and elastic than cotton and bleaches and dyes less readily. Linen cloth is a better conductor of heat than cotton and clothing made from it is cooler. When pure, it is, like cotton, nearly pure cellulose.

Ramie

Besides the linen, there is a great number of bast fibers fit for textile purposes, some superior, some inferior. India alone has over three hundred plants that are fiber yielding. One-third of these furnish useful fibers for cordage and fabrics. The next in importance to linen is ramie or rhea, and China grass. China grass comes from a different plant but is about the same as ramie. The staple is longer and finer than linen. The great strength of yarn made from it is due to length of the staple.

The variety and great value of the ramie fibers has long been recognized, but difficulties attending the separation and degumming of the fibers have prevented its employment in the manufactures to any great extent. The native Chinese split and scrape the plant stems, steeping them in water. The common retting process used for flax is not effective on account of the large amount of gummy matter, and although easy to bleach it is difficult to dye in full bright shades without injuring the luster of the fibers.

Jute and Hemp

Jute and hemp belong to the lower order of bast fibers. The fiber is large and is unfit for any but the coarsest kind of fabrics. Jute is mainly cultivated in Bengal. The fiber is separated from the plant by retting, beating, etc.

JUTE GROWING IN LOUISIANA. JUTE GROWING IN LOUISIANA.
From Culture of Hemp and Jute, Report of U. S. Department of Agriculture.

DRYING HEMP IN KENTUCKY DRYING HEMP IN KENTUCKY
From "Culture of Hemp and Jute."

Olona

Olona, the textile fiber of Hawaii, is found to have promising qualities. This plant resembles ramie and belongs to the nettle family also, but it is without the troublesome resin of the ramie. The fiber is fine, light, strong, and durable.

The Philippines are rich in fiber producing plants. The manila hemp is the most prominent, of which coarse cloth is woven, besides the valuable cordage. The sisal hemp, pineapple, yucca, and a number of fiber plants growing in the southern part of the United States are worthy of note. These fiber industries are conducted in a rude way, the fiber being cleaned by hand, except the pineapple.

SILK

The silk fiber is the most perfect as well as the most beautiful of all fibers. It is nearly faultless, fine and continuous, often measuring from 1000 to 4000 feet long, without a scale, joint, or a blemish, though not of the same diameter or fineness throughout its entire length, as it becomes finer as the interior of the cocoon is approached. Silk differs from all other vegetable or animal fibers by being devoid of all cellular structure.

Where Produced

Southern Europe leads in the silk worm culture—Italy, southern France, and Turkey, with China and India. Several species of moths, natives of India, China, and Japan, produce the wild silk. The most important of the "wild silks" are the Tussah. Silk plush and the coarser varieties of buff colored fabrics are made of this silk. While manufacturers do not favor the wild silk, the coarse uneven weave and softness make it a favorite with

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