傳(chuan)統的天然(ran)纖維(wei)包(bao)括棉、麻、絲和(he)羊(yang)毛。隨著科(ke)學(xue)技術的(de)發展(zhan)，新(xin)的(de)天然(ran)纖維(wei)也(ye)在(zai)不斷出現，如現在(zai)廣泛(fan)使(shi)用的(de)菠蘿葉(ye)纖維(wei)和(he)竹(zhu)纖維(wei)。都(dou)是大自(zi)然奉(feng)獻給(gei)我們(men)的(de)紡(fang)織(zhi)纖維(wei)原料(liao)。棉、麻、竹(zhu)、菠蘿葉(ye)纖維(wei)是天然(ran)的纖維(wei)素纖維(wei)，被(bei)火(huo)點燃(ran)後(hou)迅(xun)速碳化成(cheng)灰(hui)燼(jin)，並伴有燒(shao)草(cao)的氣味。頭(tou)、絲纖維(wei)是天然(ran)的動物(wu)纖維(wei)，點燃(ran)後(hou)會變(bian)焦(jiao)，有燒(shao)焦(jiao)頭(tou)發的(de)氣(qi)味。

Traditional natural fibers include cotton, linen, silk, and wool. With the development of science and technology, new natural fibers are constantly emerging, such as the widely used pineapple leaf fibers and bamboo fibers. They are all high-quality textile fiber materials that nature has dedicated to us. Cotton, hemp, bamboo, and pineapple leaf fibers are natural cellulose fibers that quickly carbonize into ashes after being ignited by fire, accompanied by the smell of burning grass. Head and silk fibers are natural animal fibers that will become charred upon ignition, giving off a burnt hair odor.

人(ren)類(lei)使(shi)用天然(ran)纖維(wei)的歷(li)史可(ke)以追溯到(dao)古(gu)代(dai)。根據(ju)科(ke)技(ji)史，我國絲綢和(he)亞麻織(zhi)物(wu)出現在(zai)4000-5000年前(qian)，羊毛織(zhi)物(wu)出現在(zai)3000年前(qian)，棉織(zhi)物(wu)出現在(zai)2000年前(qian)。

The history of human use of natural fibers can be traced back to ancient times. According to the history of Chinese science and technology, silk and linen fabrics appeared in China 4000 to 5000 years ago, wool fabrics appeared 3000 years ago, and cotton fabrics appeared 2000 years ago.

植物(wu)纖維(wei)：

Plant fiber:

主要成(cheng)分(fen)是纖維(wei)素，又稱天然(ran)纖維(wei)素纖維(wei)。從植物(wu)的(de)種子(zi)、果(guo)實(shi)、莖(jing)和(he)葉(ye)中獲(huo)得(de)的纖維(wei)。根據(ju)生(sheng)長在(zai)植物(wu)上(shang)的部(bu)位(wei)不同(tong)，可(ke)分為種子(zi)纖維(wei)、葉纖維(wei)和(he)莖(jing)纖維(wei)。

The main component is cellulose, also known as natural cellulose fibers. Fiber obtained from the seeds, fruits, stems, and leaves of plants. According to the different parts of the plant that grow, it can be divided into seed fibers, leaf fibers, and stem fibers.

1.種子(zi)纖維(wei)：棉、木(mu)棉等。

1. Seed fibers: cotton, kapok, etc.

2.葉(ye)纖維(wei)：劍麻、蕉麻等(deng)。

2. Leaf fibers: sisal, banana, etc.

3.莖纖維(wei)：苧(zhu)麻、亞麻、大麻(ma)、黃麻(ma)等。

3. Stem fibers: ramie, flax, hemp, jute, etc.

動物(wu)纖維(wei)：

Animal fiber:

主要成(cheng)分(fen)是蛋(dan)白(bai)質(zhi)，又(you)稱(cheng)天然(ran)蛋(dan)白(bai)質(zhi)纖維(wei)，分為毛和(he)腺分泌(mi)物(wu)兩類(lei)。

The main component is protein, also known as natural protein fibers, which are divided into two categories: hair and glandular secretions.

1.毛類(lei)：綿(mian)羊(yang)毛、山羊(yang)毛、駱駝毛、兔(tu)毛、牦牛(niu)毛等。

1. Hair types: sheep hair, goat hair, camel hair, rabbit hair, yak hair, etc.

2.腺體分(fen)泌(mi)：桑(sang)蠶絲、柞蠶絲等。

2. Gland secretion: mulberry silk, oak silk, etc.

1.天然(ran)纖維(wei)具有吸(xi)濕性好(hao)、透氣性好(hao)的優點(dian)。

1. Natural fibers have the advantages of good moisture absorption and breathability.

由於天然(ran)纖維(wei)，尤其(qi)是棉和(he)絲的結(jie)構比(bi)較(jiao)多，而(er)針(zhen)織(zhi)品(pin)的(de)針(zhen)圈(quan)結(jie)構壹(yi)般(ban)也(ye)比較(jiao)松(song)散，針(zhen)腳(jiao)之間(jian)的縫(feng)隙比(bi)較(jiao)大，尤其(qi)是夏季運動衫(shan)、背心和(he)襪(wa)子(zi)所(suo)用的(de)紗(sha)線比(bi)較(jiao)細(xi)，人體排出的(de)汗液可(ke)以隨時被(bei)吸收散發，很難附著在(zai)人體上(shang)。所(suo)以，穿(chuan)棉毛衣物(wu)緊貼皮(pi)膚，感(gan)覺(jiao)透氣舒(shu)適。

Due to the abundant structure of natural fibers, especially cotton and silk, and the loose needle loop structure of knitted goods, the gaps between the stitches are relatively large, especially the fine yarn used in summer sportswear, vests, and socks. Sweat excreted by the human body can be absorbed and emitted at any time, making it difficult to adhere to the human body. So, wearing cotton and wool clothing that fits snugly against the skin feels breathable and comfortable.

2.天然(ran)纖維(wei)還(hai)具(ju)有彈(dan)性足(zu)、延(yan)伸性好(hao)等優點(dian)。

2. Natural fibers also have advantages such as sufficient elasticity and good extensibility.

天然(ran)纖維(wei)中的(de)羊(yang)毛具有良好的(de)彈性和(he)延(yan)展(zhan)性，使(shi)得毛衣、褲子(zi)等(deng)羊毛制(zhi)成的(de)針(zhen)織(zhi)品(pin)穿(chuan)著(zhe)更(geng)加舒適(shi)，不易(yi)起皺變(bian)形(xing)。針(zhen)織(zhi)內衣、襪(wa)子(zi)和(he)手套具有良好的(de)彈性和(he)延(yan)展(zhan)性。它(ta)們(men)可(ke)以自由伸展(zhan)，輕(qing)松穿(chuan)脫(tuo)，能(neng)夠適應人(ren)體(ti)各(ge)部(bu)位的(de)體(ti)型(xing)和(he)兒童活動時(shi)拉(la)伸(shen)彎曲的要求(qiu)。

Wool in natural fibers has good elasticity and stretchability, making knitwear made of wool such as sweaters and pants more comfortable to wear and less prone to wrinkling and deformation. Knitted underwear, socks, and gloves have good elasticity and stretchability. They can stretch freely, easily put on and take off, and can adapt to the body shape of various parts of the human body and the requirements of children's stretching and bending during activities.

1.缺(que)乏彈性且(qie)不(bu)挺(ting)括，容(rong)易(yi)起皺。

1. Lack of elasticity and stiffness, prone to wrinkling.

2.色(se)牢(lao)度(du)不(bu)高(gao)，容(rong)易(yi)褪色(se)。

2. Low color fastness and easy fading.

3.天然(ran)纖維(wei)往往保形(xing)性差，洗(xi)滌後(hou)容(rong)易(yi)收縮(suo)變(bian)形(xing)(收(shou)縮率通(tong)常(chang)在(zai)4%-12%左(zuo)右(you))。

3. Natural fibers often have poor shape retention and are prone to shrinkage and deformation after washing (the shrinkage rate is usually around 4% -12%).

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