ances ▁in ▁industrial ▁technology , ▁such ▁as ▁the ▁development ▁of ▁synth etic ▁fib res ▁during ▁the ▁early ▁ 2 0 th ▁century , ▁have ▁brought ▁prof ound ▁changes ▁to ▁the ▁text ile ▁industry ▁as ▁a ▁whole . ▁Text ile ▁indust ries ▁in ▁Western ▁countries ▁have ▁decl ined ▁sharp ly ▁as ▁text ile ▁companies ▁comp ete ▁for ▁che aper ▁labour ▁in ▁other ▁parts ▁of ▁the ▁world . ▁According ▁to ▁the ▁U . S . ▁Department ▁of ▁Labor ▁" emp loyment ▁of ▁se wers ▁and ▁tail ors ▁is ▁expected ▁to ▁experience ▁little ▁or ▁no ▁change , ▁growing ▁ 1 ▁percent ▁from ▁ 2 0 1 0 ▁to ▁ 2 0 2 0 ". ▁It ▁is ▁estimated ▁that ▁every ▁lost ▁text ile ▁job ▁in ▁a ▁Western ▁country ▁in ▁recent ▁years ▁has ▁resulted ▁in ▁ 1 . 5 ▁jobs ▁being ▁created ▁in ▁an ▁out s our ced ▁country ▁such ▁as ▁China . ▁Text ile ▁workers ▁who ▁perform ▁tasks ▁with ▁se wing ▁machines , ▁or ▁do ▁detailed ▁work ▁by ▁hand , ▁are ▁still ▁a ▁vital ▁component ▁of ▁the ▁industry , ▁however . ▁Small - scale ▁se wing ▁is ▁also ▁an ▁economic ▁stand by ▁in ▁many ▁developing ▁countries , ▁where ▁many ▁people , ▁both ▁male ▁and ▁female , ▁are ▁self - emp loy ed ▁se wers . ▁ ▁Gar ment ▁construction ▁ ▁Pattern s ▁and ▁fitting ▁Gar ment ▁construction ▁is ▁usually ▁gu ided ▁by ▁a ▁pattern . ▁A ▁pattern ▁can ▁be ▁quite ▁simple ; ▁some ▁patterns ▁are ▁nothing ▁more ▁than ▁a ▁mathematical ▁formula ▁that ▁the ▁se wer ▁calcul ates