China imagawa nsalu zamafakitale m'magulu khumi ndi asanu ndi limodzi, ndipo pakali pano nsalu zosalukidwa zimakhala ndi gawo lina m'magulu ambiri, monga zamankhwala, thanzi, chitetezo cha chilengedwe, geotechnical, zomangamanga, magalimoto, zaulimi, mafakitale, chitetezo, zikopa zopanga, zonyamula, mipando, zankhondo, ndi zina zotero. Pakati pawo, nsalu zosalukidwa kale zatenga gawo lalikulu ndipo zakhala zikugwiritsidwa ntchito kwambiri m'magawo monga ukhondo, kusefera zachilengedwe, zomangamanga za geotechnical, zikopa zopanga, magalimoto, mafakitale, zonyamula katundu, ndi mipando. Muzachipatala, zaulimi, denga, zoteteza, zankhondo ndi zina, afikanso pamlingo wina wolowera msika.
Zida zaukhondo
Zida zaukhondo zimaphatikizapo matewera ndi zopukutira zaukhondo zomwe zimagwiritsidwa ntchito tsiku ndi tsiku ndi amayi ndi makanda, mankhwala oletsa kudziletsa achikulire, zopukuta zosamalira ana, zopukuta zapakhomo ndi zapagulu, zopukuta zonyowa zopangira zakudya, ndi zina zotero. Zopukutira zaukhondo za amayi ndizomwe zikukula mwachangu komanso zomwe zimagwiritsidwa ntchito kwambiri pazaukhondo ku China. Kuyambira kumayambiriro kwa zaka za m'ma 1990, liwiro lawo lachitukuko lakhala lodabwitsa. Pofika mchaka cha 2001, kuchuluka kwawo kwa msika kudapitilira 52%, ndikugwiritsa ntchito zidutswa 33 biliyoni. Zikuyembekezeka kuti pofika chaka cha 2005, kuchuluka kwawo kwa msika kudzafika 60%, ndikugwiritsa ntchito zidutswa za 38,8 biliyoni. Ndi kakulidwe kake, nsalu yake, kapangidwe kake, ndi zida zomangira zoyamwa zasintha kwambiri. Nsalu ndi mbali zotsutsana ndi masamba nthawi zambiri zimagwiritsa ntchito mpweya wotentha, kugudubuza kotentha, nsalu zabwino za denier spunbond nonwoven, ndi SM S (spunbond/meltblown/spunbond) zinthu zopangidwa. The mkati absorbent zipangizo komanso ankagwiritsa ntchito zamkati mpweya otaya kupanga kopitilira muyeso-woonda zipangizo muna SAP superabsorbent ma polima; Ngakhale kuchuluka kwa msika wa matewera a ana akadali otsika, apezanso chitukuko chachikulu m'zaka zaposachedwa; Komabe, kutchuka kwa zinthu zotchinjiriza anthu akuluakulu, zopukutira zosamalira ana, zopukuta zapanyumba ndi zapagulu, ndi zina zambiri, sizokwera ku China, ndipo opanga nsalu za spunlace zopanda nsalu amapanga zopukuta za spunlace makamaka zogulitsa kunja. China ili ndi anthu ambiri ndipo kuchuluka kwa zinthu zaukhondo kudakali kochepa. Ndi kupititsa patsogolo kwachuma cha dziko lonse, gawoli lidzakhala limodzi mwamisika yayikulu kwambiri yazinthu zopanda nsalu ku China.
Zida zamankhwala
Izi makamaka zimatanthawuza zamitundu yosiyanasiyana ya nsalu komanso zosalukidwa zopangidwa ndi ulusi zomwe zimagwiritsidwa ntchito m'zipatala, monga mikanjo ya opaleshoni, zisoti za opaleshoni, masks, zophimba zopangira opaleshoni, zophimba nsapato, mikanjo ya odwala, zopangira bedi, yopyapyala, mabandeji, zobvala, matepi, zovundikira zida zamankhwala, ziwalo zopangira zamunthu, ndi zina zotero. Pankhani imeneyi, nsalu zosalukidwa zimagwira ntchito bwino poteteza mabakiteriya komanso kupewa matenda opatsirana. Mayiko otukuka ali ndi gawo la msika wosalukidwa wa nsalu za 70% mpaka 90% pazogulitsa nsalu zamankhwala. Komabe, ku China, kupatulapo zinthu zochepa monga mikanjo ya opaleshoni, masks, zophimba nsapato, ndi matepi opangidwa ndi nsalu za spunbond, kugwiritsa ntchito zipangizo zopanda nsalu sikunafalikirebe. Ngakhale mankhwala opangira opaleshoni omwe sanalukidwe omwe agwiritsidwa ntchito ali ndi kusiyana kwakukulu pakugwira ntchito ndi kalasi poyerekeza ndi mayiko otukuka. Mwachitsanzo, mikanjo ya opaleshoni m'mayiko otukuka monga Europe ndi America nthawi zambiri imagwiritsa ntchito bwino kuvala ndikukhala ndi mabakiteriya abwino oteteza magazi, monga SM S composite materials kapena hydroentangled non-woven materials.
Komabe, ku China, zovala za spunbond ndi mafilimu apulasitiki opangira opaleshoni amagwiritsidwa ntchito kwambiri, ndipo SM S sichinavomerezedwe kwambiri; Ma bandeji omwe amagwiritsidwa ntchito kwambiri a hydroentangled osaluka, gauze, ndi ma hydroentangled opangira opaleshoni osakanikirana ndi zamkati zamatabwa m'maiko akunja sanakwezedwebe ndikugwiritsidwa ntchito kunyumba; Zida zina zachipatala zamakono zilibe kanthu ku China. Kutengera mliri wa SARS womwe udayamba ndikufalikira ku China koyambirira kwa chaka monga mwachitsanzo, madera ena ku China sanathe kupeza zida zoyenera zodzitetezera komanso zida zokhala ndi chitetezo chabwino pakubuka kwadzidzidzi. Pakalipano, zovala za opaleshoni za ogwira ntchito zachipatala ambiri ku China zilibe zovala za SM S zomwe zimakhala ndi chitetezo chabwino pa mabakiteriya ndi madzi amadzimadzi am'thupi ndipo zimakhala zomasuka kuvala chifukwa cha zovuta zamtengo wapatali, zomwe sizili bwino pa chitetezo cha ogwira ntchito zachipatala. Ndi kukula kofulumira kwachuma cha China komanso kuzindikira kwaukhondo pakati pa anthu, gawoli lidzakhalanso msika waukulu wansalu zosalukidwa.
Geosynthetic zipangizo
Zida za geosynthetic ndi mtundu wa zida zauinjiniya zomwe zapangidwa ku China kuyambira 1980s ndipo zidapangidwa mwachangu kumapeto kwa zaka za m'ma 1990, ndikugwiritsa ntchito kwambiri. Pakati pawo, nsalu, nsalu zosalukidwa, ndi zida zake zophatikizika ndi gulu lalikulu la nsalu zamakampani, zomwe zimadziwikanso kuti geotextiles. Ma geotextiles amagwiritsidwa ntchito kwambiri pama projekiti osiyanasiyana aukadaulo, monga kusungira madzi, mayendedwe, zomangamanga, madoko, ma eyapoti, ndi zida zankhondo, kupititsa patsogolo, kukhetsa, kusefa, kuteteza, ndi kukonza uinjiniya ndi moyo wautumiki. China idayamba kugwiritsa ntchito geosynthetics poyesa koyambirira kwa zaka za m'ma 1980, ndipo pofika 1991, kuchuluka kwa ntchito kunali kupitirira 100 miliyoni masikweya mita kwa nthawi yoyamba chifukwa cha masoka a kusefukira kwa madzi. Kusefukira kwa madzi mu 1998 kudakopa chidwi cha dipatimenti ya zomangamanga mdziko muno, zomwe zidapangitsa kuti ma geosynthetics aphatikizidwe mumiyezo ndikukhazikitsa mafotokozedwe ofananirako ndi malamulo ogwiritsira ntchito. Pakadali pano, zida zaku China za geosynthetic zayamba kulowa mugawo lachitukuko chokhazikika. Malinga ndi malipoti, mu 2002, kugwiritsa ntchito geosynthetics ku China kudapitilira masikweya mita 250 miliyoni kwa nthawi yoyamba, ndipo mitundu yosiyanasiyana ya geosynthetics ikukhala yosasinthika.
Ndi chitukuko cha ma geotextiles, zida zopangira nsalu zopanda nsalu zoyenera kupangira zinthu zotere ku China zapezanso chitukuko mwachangu. Zasintha pang'onopang'ono kuchokera ku njira yanthawi yayitali yokhomerera singano yokhala ndi m'lifupi mwake osakwana 2.5 metres poyambira kugwiritsa ntchito mpaka njira yokhomerera ya singano yayifupi yokhala ndi mita 4-6 m'lifupi ndi njira yokhomerera singano ya polyester spunbond yokhala ndi m'lifupi mwake 3.4-4.5 metres. Zogulitsazo sizimapangidwanso ndi chinthu chimodzi, koma nthawi zambiri zimagwiritsa ntchito kuphatikiza kapena kuphatikizika kwazinthu zingapo, zomwe zimathandizira kwambiri kuwongolera ndikukwaniritsa zofunikira zazinthuzo. Komabe, potengera kuchuluka kwa uinjiniya m'dziko lathu, ma geotextiles ali kutali ndi kutchuka kwambiri, ndipo kuchuluka kwa zinthu zomwe sizinalukidwe ndizotsika kwambiri poyerekeza ndi mayiko otukuka. Akuti kuchuluka kwa nsalu zopanda nsalu mu geotextiles ku China ndi pafupifupi 40%, pomwe ku United States kuli kale pafupifupi 80%.
Kumanga zipangizo zopanda madzi
Zomangamanga zopanda madzi ndizinthu zomwe zikukula mwachangu ku China m'zaka zaposachedwa. M'masiku oyambirira a dziko lathu, zida zambiri zotchingira madzi padenga zinali matayala a pepala ndi matayala a fiberglass. Chiyambireni kukonzanso ndikutsegulira, zida zomangira zaku China zakhala zikukula kwambiri, ndipo kugwiritsa ntchito kwawo kwafika 40% yazomwe zimagwiritsidwa ntchito. Pakati pawo, kugwiritsa ntchito ma nembanemba otetezedwa ndi phula osinthidwa monga SBS ndi APP nawonso awonjezeka kuchokera ku mamilimita oposa 20 miliyoni isanafike 1998 mpaka 70 miliyoni miliyoni mchaka cha 2001. Ndi kulimbikitsa ntchito zomanga zomangamanga, China ili ndi msika waukulu womwe ungachitike pamundawu. Singano yayifupi ya singano yokhomerera matayala a polyester, singano ya spunbond yokhomerera matayala a polyester, ndi spunbond polypropylene ndi zinthu zophatikizika ndi utomoni wopanda madzi zipitilirabe kugawana msika wina. Inde, kuwonjezera pa khalidwe loletsa madzi, nkhani zomanga zobiriwira, kuphatikizapo zipangizo zopangira mafuta, ziyenera kuganiziridwanso m'tsogolomu.
Malingaliro a kampani Dongguan Liansheng Nonwoven Fabric Co., Ltd., Wopanga nsalu zopanda nsalu ndi nsalu zopanda nsalu, ndizoyenera kuti mukhulupirire!
Nthawi yotumiza: Aug-02-2024