Idayi ziikhompawundi zendalo ezinemibala ezinokudaya iintsinga okanye ezinye iisubstrates zibe ngumbala othile. Zisetyenziselwa ikakhulu ukudaya ukuprintwa kweentambo kunye namalaphu, ukudaya kwesikhumba, ukudaya kwephepha, izongezo zokutya kunye nemimandla yombala weplastiki.Ngokuhambelana neempawu zabo kunye nezindlela zokusetyenziswa, iidayi zinokwahlulwa zibe yidayi echithakeleyo, idayi esebenzayo, idayi yesulfide, idayi yeVAT, iidayi acid, iidayi ngqo kunye nezinye iindidi.
Imarike enkulu kwimbali ikakhulu enxulumene ixabiso idayi, kwaye ixabiso idayi ngokuqhelekileyo ukunyuka kunye nexabiso impahla ekrwada kwakunye nonikezelo kunye nobudlelwane imfuno isigqibo, inexesha encopho obuthathaka olomeleleyo isenti.

Ishishini elinyukayo lemveliso yedayi lishishini lepetrochemical, ishishini lemichiza esisiseko kunye neshishini lemichiza yamalahle. Eyona mathiriyeli ekrwada yedayi yibenzene, naphthalene, anthracene, heterocycles kunye ne-inorganic acid kunye nealkali kunye nezinye iimveliso zemichiza. Ushishino olusezantsi lushicilelo kunye neshishini lokudaya kwishishini lelaphu.

I-Dayi intermediates inokohlulwa ibe yi-benzene series, i-naphthalene series kunye ne-anthracene series ngokwesakhiwo sayo, phakathi kwayo i-benzene series intermediates isetyenziswa ngokubanzi.Phakathi kwe-benzene intermediates, i-m-phenylenediamine kunye ne-reductants zizinto ezibalulekileyo zokwenziwa kweedayi ezisasazekileyo. kunye ne-para-ester yi-intermediates ephambili yeedayi ezisebenzayo. Phakathi kwazo, i-m-phenylenediamine inokuphinda idityaniswe ibe yi-m-phenylenediamine (isetyenziswa ikakhulu njengesibophelelo sokufakwa kwentambo yetayara) kunye ne-m-aminophenol (idayi enobushushu/noxinzelelo loxinzelelo.

intermediates).I-Naphthalene intermediates, kubandakanywa i-acids ye-H, zizinto ezisisiseko zokuvelisa idayi ezisebenzayo, ezibalelwa kwi-30-50% yeendleko zizonke.Ukongezelela, i-intermediates yokuhlanganiswa kwedayi ye-anthraquinone ikakhulu yi-1-amino-anthraquinone. , eyenkqubo ye-anthraquinone.

Uhlalutyo lwamandla amahlanu ePorter kushishino lwedayi 1. Amandla othethathethwano lwababoneleli bedayi abaphezulu abanamandla. Imfuno yoshishino lwedayi yepetroleum kunye nepetrochemical commodity iphantse yayinto engabalulekanga xa ithelekiswa namanye amashishini. Ke ngoko, ishishini ledayi lifumana ixabiso lepetroleum ephezulu kunye neemveliso zepetrochemical.

2. Amandla othethathethwano olomeleleyo kubathengi abasezantsi.Abathengi abasezantsi boshishino lwedayi ikakhulu ngamashishini okushicilela nawokudaya. Amandla okuxoxisana anamandla oshishino lwedayi kubathengi abasezantsi kakhulu ngenxa yezizathu ezibini. Okokuqala, ukuxinwa koshishino lwedayi kuphantsi kakhulu.Okwesibini, kwiindleko zokuprinta kunye nokudaya iidayi zibalwe kumashishini amancinci, ukuprinta kunye nokudaya ukudaya amaxabiso aphakama kulula ukuwamkela.

3. Abancinci abanokuthi bangene kwi-industry.Ngenxa yeteknoloji ye-patent, izinto eziphambili zezinto ezibonakalayo kunye nezinto ezikhuselayo zokusingqongileyo, imboni ye-dyestuff inemiqobo ephezulu, kwaye ukwandiswa kwamandla okuvelisa kuthintelwe. Kwiminyaka yakutshanje, umthamo omncinci wemveliso uphelisiwe ngelixa abambalwa abatsha bangene.Ngoko ke, imveliso yedayi yexesha elizayo iphethini yoxinzelelo ephezulu iya kukwazi ukuqhubeka.

4. I-substitutes ibeka ingozi encinci. I-giants yedayi yangaphandle ibeka iimveliso eziphezulu okanye iidayi ezikhethekileyo azifaki ingozi kwishishini ledayi yasekhaya. Ukongeza, uchatshazelwa ziintlawulo kunye nomthwalo, amaxabiso avela kumazwe angaphandle aphezulu.

5. Inqanaba eliphakathi lokhuphiswano loshishino. Emva kokudityaniswa okukhulu koshishino ukusukela ngo-2009 ukuya ku-2010, inani lamashishini lehlile laya kutsho ngaphezu kwama-300. Ishishini ledayi liphucule kakhulu.Umthamo wemveliso yedayi yasekhaya usasazeke ikakhulu eZhejiang Longsheng, iLeap Soil Stock kunye neJihua Group, i-CR3 imalunga ne-70%, umthamo wokuvelisa idayi osebenzayo uphezulu kwiZhejiang Longsheng, iLeap Earth Stock, Hubei Chuyuan, Taixing Caragian. kunye namashishini amahlanu e-Anoki, i-CR3 iphantse ibe yi-50%.
Ukubeka iliso kubonisa ukuba ukuthengisa iimpahla zempahla yexesha elide kunyuse ixabiso ledayi. Disperse black ECT300% amaxabiso edayi anyuke ngama-36% kwiinyanga ezimbini ezidlulileyo.

Ngokwemfuno, ngenxa yempembelelo yobhubhani, amashishini amalaphu amakhulu ajolise kumazwe angaphandle eIndiya adlulisele iiodolo ezininzi kwimveliso yasekhaya kwezi nyanga zidlulileyo ngenxa yokungakwazi ukuqinisekisa ukuhanjiswa okuqhelekileyo ngenxa yobhubhani. Ukongeza, “Kuphindwe kabini I-11″ isondela, amashishini e-e-commerce kwangaphambili, isitokhwe sisitshixo sokuphumelela kwimarike.Ukongezelela kulo nyaka "ubusika obubandayo" obulindelekileyo, ishishini lithe amashishini e-textile axakeke kakhulu ngoku.Imfuno yedayi enyukayo nayo iphakanyisiwe ngokukhawuleza ekuphenduleni.

Ngokuphathelele ukubonelela, imeko enzima yokhuseleko kunye nokukhuselwa kokusingqongileyo e-China inokuqhubeka ixesha elide kwixesha elizayo ngenxa yongcoliseko olukhulu olubangelwa yimveliso yedayi kunye ne-intermediates, kunye nokhuseleko olufanelekileyo kunye nokhuseleko lokusingqongileyo umthamo wemveliso ophantsi kunye nokungasebenzi kakuhle. umthamo wemveliso uya kupheliswa ngokuthe ngcembe. I-Guoxin Securities yathi amashishini amancinci asasaza imveliso yedayi anemveliso elinganiselweyo, imeko yangoku ilungele ukuphuhliswa kwedayi ehamba phambili yamashishini.