Why do your jeans wear out so quickly? - Madhavi Venkatesan

352,852 views ・ 2021-11-30

TED-Ed


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譯者: 至磊Zi Le 黃Ng 審譯者: Yi-Ping Cho (Marssi)
00:06
The first pairs of jeans were designed for durability.
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第一件牛仔褲是為了耐用而設計的。
00:10
Named for the French city of Nîmes,
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名字源於法國城市尼姆的丹寧布
00:12
denim was constructed as a sturdy cotton weave worn by sailors.
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過去是用來製造水手穿的 牢固棉紡織品。
00:17
This rugged material got even stronger in the 19th century,
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這個耐用的材質 在十九世紀又更強化了,
00:20
when Levi Strauss and Jacob Davis added metal rivets to reinforce stress points.
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因為李維‧史特勞斯和雅各布‧戴維斯 在布上加了金屬鉚釘來穩固受力點。
00:26
Their design introduced a new brand of durable trousers
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他們的設計為加州礦工帶來了 一種新穎耐用的長褲,
00:29
for California miners that could withstand years of wear and tear.
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穿好幾年也不會破。
00:33
Over the course of the 20th century,
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隨著二十世紀的進展,
00:35
these working-class pants have transformed into fashion icons.
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這種勞動階級的長褲 變成了時尚的符號。
00:39
But as the demand for jeans has gone up, their durability has gone down.
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但牛仔褲需求上升的同時, 耐用度卻下降了。
00:44
Today, most pairs last no longer than a year.
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如今,多數牛仔褲用不到一年。
00:47
And each new pair you buy has a much higher cost than you might think.
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而且每一件新牛仔褲的成本 比你想的高很多。
00:51
Every pair of jeans begins its life in a cotton field.
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每一件牛仔褲的生命歷程 都從棉花田開始。
00:55
It takes about 0.7 kilograms of cotton to produce a single pair of pants.
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生產一件牛仔褲需要 大約 0.7 公斤的棉花。
01:00
Growing this much cotton requires roughly 10,000 liters of water,
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要種出這麼多棉花 大概需要一萬公升的水,
01:05
not to mention various herbicides and pesticides,
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此外還有可能汙染地下水的 各種除草劑和殺蟲劑。
01:08
which can contaminate groundwater.
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01:10
The cotton is harvested by hand or industrial machines
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棉花是以手工或機器收割,
01:14
and transported to textile factories where it’s spun into yarn.
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再運到紡織工廠紡成紗。
01:17
At this point, it’s typically combined with plastic fibers like spandex
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這時通常會混入 氨綸之類的塑料纖維,
01:22
to increase the yarn’s elasticity.
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以提升紗線的彈性。
01:24
These plastic threads make modern jeans more comfortable and flexible,
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這些塑料線使現代的牛仔褲 更舒服而且有彈性,
01:28
but also much less durable.
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但也比較不耐用。
01:31
Next, the yarn is dyed jeans’ trademark blue.
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接下來,紗線要被染成 牛仔褲標誌性的藍色。
01:34
Historically, this color came from natural plant-derived indigo.
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歷史上,這個顏色取自於 自然植物的靛藍色。
01:38
But most modern manufacturers use a synthetic dye
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但多數現代製造商使用合成染料,
01:41
made from petroleum byproducts and toxic chemicals.
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這是由石油副產品 和有毒化學物質所製造。
01:45
Once dyed, the cotton-plastic blend is woven into denim sheets,
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一染完色,棉花和塑膠的混合物 就會被織成丹寧布,
01:49
which are then cut and sewn into jeans.
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接著裁剪並縫成牛仔褲。
01:52
After assembly, some jeans undergo additional procedures
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縫製完畢後有些牛仔褲 會進行額外的處理,
01:55
to get a distressed look.
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做成仿古的磨損樣貌。
01:57
This often includes chemical sprays and multiple cycles of acid-washing,
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這個流程時常包含噴灑化學物質 和很多輪次的酸洗,
02:02
the toxic runoff can turn rivers indigo-blue.
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含有有毒物質的逕流 可以將河流轉為靛藍色。
02:05
Finally, there are the zippers, buttons, and rivets
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最後,還有拉鏈、鈕扣、鉚釘,
02:08
made of copper and other metals,
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這些都是用銅和其他金屬製成,
02:10
whose mining is yet another source of environmental degradation.
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開採這些礦產又是 另一個環境退化的由來。
02:14
All in all, the manufacturing process for a single pair of jeans
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總之,一件牛仔褲的製造過程
02:18
emits over 33 kilograms of carbon—
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會排放超過 33 公斤的碳,
02:21
the equivalent of driving over 110 kilometers.
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相當於開車超過 110 公里。
02:24
But this process doesn't just damage the environment.
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但這個過程不止於破壞環境。
02:28
Much of the world’s cotton is grown in developing countries,
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世界上的棉花大多數 種植於開發中國家,
02:31
with poor labor practices and few protections for workers.
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勞動行為不佳,對工人的保護很少。
02:35
Cotton here is often picked by children or forced labor,
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這裡的棉花通常由孩童 或被強迫的勞工收成,
02:38
and most jean manufacturing plants frequently expose workers
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而且多數牛仔褲生產工廠常常讓工人 在生產過程中暴露於有毒化學物質。
02:42
to toxic chemicals throughout production.
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02:44
One particularly dangerous technique called sandblasting
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有一種特別危險的技術稱為噴砂,
02:48
involves spraying jeans with fine sand at high pressures
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以高壓對牛仔褲噴灑細小的砂粒,
02:52
and has been linked with numerous cases of incurable and often fatal lung disease.
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這與無數容易致命的 肺部絕症案例有關聯。
02:57
Like many globally produced products,
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就像許多全球化生產的產品,
02:59
jeans are made in poor countries and bought in rich ones.
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牛仔褲在窮國製造,在富國販售。
03:02
All these pants will likely be washed dozens or even hundreds of times per year.
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每一件牛仔褲很可能 每年要洗幾十次甚至上百次。
03:07
This energy intensive process breaks down the plastics woven into each pair,
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這個能源密集的過程會分解 縫在每一條牛仔褲中的塑料,
03:12
releasing microplastics into the water
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讓微塑料釋放到水中,
03:14
and, perhaps most ironic of all, shortening the jean’s lifespan.
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最諷刺的是它會縮減牛仔褲的壽命。
03:18
Like most waste, discarded jeans end up in landfills,
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跟多數垃圾一樣,廢棄牛仔褲 最後到了垃圾掩埋場,
03:22
where their decomposition releases methane gas,
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牛仔褲分解後會排放甲烷,
03:24
while their dyes and plastics leach into the soil and groundwater.
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褲子的染劑和塑料 被沖入泥土和地下水中。
03:28
Some companies are working on solutions here,
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有些公司在尋找解決問題的方法,
03:31
from using organic cotton to recycling and reusing denim.
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像是使用有機棉花、 回收和重複利用丹寧布。
03:35
You can also help reduce the environmental impact of your favorite pants
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你也可以幫忙減少 你最愛的長褲對環境的影響,
03:38
by buying used jeans and buying fewer pairs altogether.
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買二手牛仔褲,或是少買幾條牛仔褲。
03:42
Denim manufacturers also recommend only washing your jeans once every 10 wears.
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丹寧布製造商也建議你 每穿十次才洗一次牛仔褲。
03:47
And, when possible, air dry your pants to reduce energy consumption.
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還有如果可以的話,風乾而不是烘乾 你的長褲以減少能源消耗。
03:51
Life cycle and labor problems like these extend far beyond just jeans.
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這些生命週期和勞動的問題 遠遠大於一條牛仔褲。
03:56
Some governments are pursuing policies to make companies more responsible
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有些政府正在推行政策,
讓企業對工人薪資和福利更加負責,
04:00
for worker pay and welfare,
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04:02
but unsustainable practices still run rampant throughout the fashion industry.
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但不永續的行徑 在時尚業仍然十分猖獗。
04:06
So when the price tags on your clothes seem like a steal,
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所以當你衣物的價格非常低廉時,
04:09
it’s important to consider who’s actually being robbed.
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想想誰被剝削了是很重要的事。
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