Chii chinonzi dehwe, chinoenderana nematehwe, PU uye PVC machira?Ndeipi nzira yekusiyanisa

dehwe rechokwadi

Genuine dehwe izwi rinozivikanwa mumusika wechigadzirwa chematehwe.Iri izita retsika reganda rechisikigo kusiyanisa ganda rekugadzira.Mupfungwa yevatengi, dehwe chairo rinewo zvarinoreva kwete fake.Inonyanya kugadzirwa neganda remhuka.Kune marudzi akawanda ematehwe, marudzi akasiyana-siyana, zvimiro zvakasiyana, hunhu hwakasiyana, nemitengo yakasiyana.Naizvozvo, iyo chaiyo dehwe izita rakajairika kune ese echisikigo dehwe, uye zvakare chiratidzo chisina kujeka mumusika wezvigadzirwa.

Kubva pakuona kwehupenyu, chero ganda remhuka rine bvudzi epidermis uye dermis.Nekuti iyo dermis ine reticulated diki faibha bundles, ine simba rakawanda uye permeability

Epidermis iri pasi pebvudzi uye pedyo nechepamusoro pedermis.Ukobvu hweepidermis inoumbwa nemasero epidermal emhando dzakasiyana anosiyana nemhuka dzakasiyana.Semuenzaniso, kuwanda kweganda remombe ndeye 0.5 ~ 1.5% yehupamhi hwese;2 ~ 3% yedehwe remakwai nedehwe rembudzi;Iyo yenguruve ndeye 2-5%.Iyo dermis iri pasi pe epidermis, pakati pe epidermis uye subcutaneous tishu, uye ndiyo chikamu chikuru cheganda mbishi.Huremu hwayo kana ukobvu hunoita zvinopfuura makumi mapfumbamwe muzana eganda mbishi

Kufananidza ganda

Mamwe matehwe anogadzirwa kubva pamatehwe akaputsika, uye kuumbwa kwematehwe kunopfuura 30%.Izvi zvinonzi kusanganiswa kweganda

Artificial dehwe-

Artificial dehwe ndiyo yekutanga inotsiva yakagadzirwa machira ematehwe.Yakagadzirwa nePVC, plasticizer uye zvimwe zvinowedzera, calendered uye inosanganiswa pamucheka.Zvakanakira zvayo zvakachipa, zvakapfuma muvara, uye mapatani akawanda.Izvo zvisingabatsiri ndezvekuti zviri nyore kuomesa uye embrittle

PU -

PU imhando yeartificial synthetic material, ine magadzirirwo ematehwe uye akasimba kwazvo.Yakasiyana nedehwe rekugadzira.PU synthetic dehwe rinoshandiswa kutsiva PVC yematehwe ekugadzira.Mutengo wayo wakakwira kupfuura PVC yematehwe ekugadzira.Maererano nekugadzirwa kwemakemikari, iri pedyo nemucheka weganda.Haidi plasticizer kuti iwane zvinyoro zvinyoro, saka haizove yakaoma kana brittle.Panguva imwecheteyo, ine zvakanakira mavara akapfuma uye mapatani akasiyana, uye mutengo wayo unodhura kupfuura jira rematehwe, Saka inogamuchirwa nevatengi.

Kusiyanisa nzira yedehwe rechokwadi uye rekugadzira rematehwe PU

Mucheka wematehwe uye PVC yekugadzira yeganda PU synthetic yematehwe inosiyaniswa nenzira mbiri: imwe ndeyekuseri kwejira, iyo inogona kuoneka kubva kumashure kwePVC yekugadzira yeganda PU synthetic dehwe.Imwe ndiyo nzira yekupisa yekunyungudika, inova kutora chidimbu chejira pamoto, kuitira kuti jira reganda risanyunguduke, nepo PVC yeganda rekugadzira PU synthetic dehwe richinyungudika.

Musiyano pakati pePU nematehwe ekugadzira:

Musiyano uripo pakati pePVC yeganda rekugadzira uye PU synthetic dehwe inogona kusiyaniswa nekunyudza chidimbu chejira mupeturu kwehafu yeawa, wozoiburitsa kunze.Kana iri PVC yeganda rekugadzira, inova yakaoma uye ine brittle.Kana iri PU synthetic dehwe, haizoome uye brittle