Puas elastic waistbands ntsws?

Cov txheej txheem:

Puas elastic waistbands ntsws?
Puas elastic waistbands ntsws?
Anonim

Nws tuaj yeem tiv taus qhov kub thiab txias. Nws yuav ntsws, tab sis tsis ntau npaum li rayon. Txawm li cas los xij, zoo li rayon, kev tu kom qhuav yuav rhuav tshem nws txoj kev ncab, yog li siv nws ntawm cov khaub ncaws uas koj npaj yuav ntxhua hauv tsev. Elastic yuav tsum tuaj yeem ncav cuag tsawg kawg yog ob zaug nws qhov ntev thiab tseem rov qab mus rau nws qhov loj me thaum so.

Puas elastic bands ntsws?

Cov khoom siv feem ntau nthuav dav thaum lawv kub, tab sis cov hlua roj hmab poob vim tias cov cua sov ua raucov roj hmab molecules txav mus los thiab poob kev sib raug zoo, uas ua rau lawv ntsws, raws li Vince Calder hauv "Rubber Bands thiab Elasticity." … Siv lub tshuab ziab plaub hau los tshuab cov cua kub ntawm cov roj hmab band.

Koj puas tuaj yeem kho lub duav elastic?

Hloov ib qho lub duav lub duav tuaj yeem ua rau lub tsho ntev ntev. Elastic waistbands tso cai rau kev yooj yim rau kev sib haum xeeb. Yog hais tias lub elastic tawg los yog tsis muab qhov haum haum, ces hloov los yog tshem tawm ib feem ntawm elastic yuav ua hauj lwm.

YYuav ua li cas koj shrink stretched elastic?

Elastic uas tsis stretches yuav tsum tau hloov

  1. Pinch dhau elastic ua ke thiab pin nws rau hauv qhov chaw. Ua kom lub voj ntawm cov elastic ntau dhau ntawm qhov pom qhov kawg ntawm lub pluaj. …
  2. Sim rau ntawm lub tsho kom pom tias elastic yog nruj txaus. …
  3. Txhob tus pin thiab tshuab xaws lub pluaj ua ke.

Yuav ua li cas elastic waistband stretch?

Siv lej: Feem ntau, elastic yogncab nruab nrab ntawm 3-8%, nrog 8% tsuas yog siv rau hauv qhov chaw uas koj xav kom cov khaub ncaws " khawm" lub cev (piv txwv li ntawm lub hauv caug ze ntawm caj npab). Yog li yog tias koj xav siv lej, koj tuaj yeem ntsuas qhov ntev ntawm qhov sewn thiab txo nws li 5%.

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