Monga gawo lalikulu la zida zodzitchinjiriza zachipatala, magwiridwe antchito a nsalu ya spunbond, chinthu chofunikira kwambiri muzovala zodzitchinjiriza zachipatala, zimatsimikizira mwachindunji chitetezo ndi chitetezo cha ntchito. Muyezo watsopano wadziko lonse wazovala zodzitchinjiriza zachipatala (zotengera zomwe zasinthidwa za GB 19082) zayika patsogolo mndandanda wazinthu zolimba kwambiri pansalu ya spunbond, zomwe sizimangolimbitsa kudalirika kwa chotchinga choteteza komanso kumaganizira momwe zimagwirira ntchito komanso chitetezo pakagwiritsidwe ntchito. Zotsatirazi ndikuwunika mwatsatanetsatane kuchokera kumagulu apakati.
Zomveka Zomveka za Kapangidwe kazinthu ndi Mafomu Ophatikiza
Muyezo watsopanowu umachepetsa momveka bwino kugwiritsa ntchito nsalu za spunbond kuzinthu zophatikizika kwa nthawi yoyamba, osazindikiranso nsalu imodzi ya spunbond ngati chinthu chachikulu. Muyezowu umafunika kugwiritsa ntchito zinthu zopangidwa ndi nsalu zopanda nsalu monga spunbond-meltblown-spunbond (SMS) kapena spunbond-meltblown-meltblown-spunbond (SMMS). Chofunikira ichi chimachokera ku mfundo yakuti nsalu imodzi ya spunbond ili ndi zofooka pakugwirizanitsa ntchito zotchinga ndi mphamvu zamakina, pamene muzinthu zophatikizika, nsalu ya spunbond imatha kugwiritsira ntchito ubwino wake wamakina wothandizira, kuphatikizapo kusefa kwapamwamba kwambiri kwa wosanjikiza wa meltblown, kuti apange synergistic zotsatira za "chitetezo + chithandizo".
Pakalipano, muyezowu umaperekanso chitsogozo pa malo ndi chiŵerengero cha makulidwe a spunbond wosanjikiza mumagulu ophatikizika, kuwonetsetsa kuti nsalu ya spunbond imatha kuthandizira bwino wosanjikiza wosungunuka ndikusunga kukhazikika kwadongosolo lonse.
Zizindikiro Zokwezedwa Zakuthupi ndi Zamakina
Muyezo watsopano umakweza kwambiri mawonekedwe a thupi ndi makina opangira nsalu za spunbond, poyang'ana kulimbikitsa zizindikiro zokhudzana ndi kulimba kwa zovala zoteteza. Makamaka, izi zikuphatikizapo:
- Unit Area Misa: Mulingo umafuna momveka bwino kuti gawo la gawo la unitnsalu ya spunbond(kuphatikiza kapangidwe kawo) akhale osachepera 40 g/m², ndi kupatuka komwe kumayendetsedwa mkati mwa ± 5%. Uku ndikuwonjezeka kwa 10% pamlingo wocheperako poyerekeza ndi muyezo wakale, ndikumangitsa zopotoka. Kusintha uku kumafuna kuonetsetsa kuti chitetezo chikuyenda bwino kudzera mu kachulukidwe kazinthu zokhazikika.
- Kulimba Kwambiri ndi Kutalikira: Mphamvu zamakomedwe zazitali zawonjezeka kuchokera ku 120 N kufika ku 150 N, ndipo mphamvu yodutsa kuchokera ku 80 N kufika ku 100 N. Kutalikirako panthawi yopuma kumakhalabe osachepera 15%, koma malo oyesera ndi ovuta kwambiri (kutentha 25 ℃% ± 5 ℃ ± 5 ℃, 3 ± 5 ℃% ± 3%). Kusintha kumeneku kumayang'ana pa nkhani ya kutambasula kwa nsalu komwe kumachitika chifukwa cha kusuntha pafupipafupi pakugwira ntchito mwamphamvu kwambiri ndi ogwira ntchito yazaumoyo, ndikuwongolera kung'ambika kwa zovala zoteteza.
- Kugwirizana kwa msoko: Ngakhale kulimba kwa msoko ndi mtundu wa chovala, muyezo umafunikira kuti nsalu za spunbond zigwirizane ndi kusindikiza kutentha kapena njira zotsekera ulusi ziwiri. Imatchulanso kuti mphamvu yomangira pakati pa nsalu ya spunbond ndi ulusi wa msoko ndi zomatira ziyenera kukwaniritsa zofunikira za mphamvu ya msoko wosachepera 100N/50mm, ndikuyika zofunikira zatsopano pamtunda, kukhazikika kwamafuta, ndi zina zogwirira ntchito za nsalu ya spunbond.
Kukhathamiritsa kwa Balance Pakati pa Chitetezo ndi Chitonthozo
Mulingo watsopanowu ukusiyana ndi malingaliro achikhalidwe akuti "kugogomezera chitetezo kwinaku akunyalanyaza chitonthozo," kulimbitsa chitetezo ndi chitonthozo cha nsalu za spunbond kuti zitheke bwino pakati pa ziwirizi:
- Multi-dimensional Enhancement of Barrier Performance: Ponena za kukana madzi, spunbond composite layer ikufunika kuti mukwaniritse mulingo wolowera m'madzi wa 4 kapena kupitilira apo molingana ndi GB/T 4745-2012. Kuyesa kwatsopano kopanga magazi kukana kulowa m'magazi kumawonjezeredwanso (kuchitidwa molingana ndi Zowonjezera A za GB 19083-2013). Ponena za kusefera bwino, zimanenedwa kuti kusefera kwamtundu wa spunbond kompositi kwa tinthu tating'ono tamafuta sikuyenera kukhala kochepera 70%, ndipo ma seams ayenera kukhalabe ofanana. Chizindikirochi chimapereka chitetezo chogwira ntchito muzochitika zotumizira aerosol.
- Zofunikira Zofunikira Kuti Chinyezi Chikhale Chokwanira: Kwa nthawi yoyamba, kutsekemera kwa chinyezi kumaphatikizidwa ngati chizindikiro chachikulu cha nsalu za spunbond, zomwe zimafuna osachepera 2500 g/(m² · 24h). Njira yoyeserera imatengera GB/T 12704.1-2009. Kusintha kumeneku kumayang'ana "zovuta" za zovala zodzitchinjiriza pansi pa muyezo wakale powongolera mpweya wa ma cell a nsalu ya spunbond, kuonetsetsa chitonthozo cha ogwira ntchito zachipatala pakavala nthawi yayitali.
- Kukweza kwa Antistatic performance: Malire oletsa kukhazikika kwapamwamba akhwimitsidwa kuchoka pa 1×10¹²Ω kufika pa 1×10¹¹¹Ω, ndipo chofunikira chatsopano choyezetsa ma electrostatic attenuation performance yawonjezedwa kuti tipewe kutulutsa fumbi kapena kutulutsa spark chifukwa cha magetsi osasunthika, ndikupangitsa kuti ikhale yoyenera malo azachipatala olondola monga zipinda zochitira opaleshoni ndi ma ICU.
Zoletsa Zatsopano pa Zizindikiro Zachitetezo ndi Chitetezo Chachilengedwe
Muyezo watsopanowu umawonjezera zizindikiro zingapo zachitetezo ndi chitetezo cha chilengedwe cha nsalu za spunbond, kulimbikitsa chitetezo cha thanzi la ogwiritsa ntchito komanso kuwongolera chilengedwe:
- Zizindikiro zaukhondo ndi chitetezo: Imamveketsa bwino kuti nsalu za spunbond ziyenera kutsatira GB/T 3923.1-2013 "Hygienic Standard for Disposable Sanitary Products," yokhala ndi mabakiteriya okwana ≤200 CFU/g, kuchuluka kwa mafangasi ≤100 CFU/g; kugwiritsa ntchito zoyera za fulorosenti ndizoletsedwanso kupewa ngozi zomwe zingachitike pakhungu.
- Chemical Residue Control: Malire atsopano otsalira a zinthu zoopsa monga acrylamide ndi formaldehyde awonjezedwa kuti athetse kugwiritsa ntchito mankhwala othandizira pakupanga nsalu za spunbond. Zizindikiro zodziwika bwino zimanenanso zachitetezo cha nsalu zosawomba zachipatala kuti zitsimikizire kuti zovala zodzitchinjiriza zikukwaniritsa zofunikira zachitetezo chachilengedwe pambuyo potsekereza.
- Kusintha kwa Magwiridwe Osauka kwa Flame: Pazovala zodzitchinjiriza zomwe zimagwiritsidwa ntchito popanga opaleshoni kapena zochitika zina zomwe zimakhala ndi zoopsa zamoto wotseguka,spunbond composite wosanjikizaimayenera kudutsa GB/T 5455-2014 vertical burning test, ndi afterflame time ≤10s ndipo palibe kusungunuka kapena kudontha, kukulitsa zochitika zoyenera pa nsalu ya spunbond.
Kukhazikika kwa Njira Zoyesera ndi Kuwongolera Ubwino
Kuwonetsetsa kukwaniritsidwa kwa zofunikira zonse, mulingo watsopanowu umagwirizanitsa njira zoyesera ndi njira zowongolera mtundu wa nsalu za spunbond:
Ponena za njira zoyesera, imamveketsa bwino malo oyesera pachizindikiro chilichonse (kutentha 25 ℃ ± 5 ℃, chinyezi wachibale 30% ± 10%) ndikukhazikitsa zolondola pazida zazikulu (monga makina oyesera olimba ndi ma mita permeability). Pankhani ya kuwongolera kwabwino, pamafunika opanga kuti aziwunika zonse pagulu lililonse la nsalu za spunbond, kuyang'ana pazizindikiro zazikulu monga kuchuluka kwa gawo, kusweka mphamvu, komanso kusefera bwino, ndipo zimafunikira kutsata malipoti oyendera musanapange zovala.
Mwachidule ndi Malangizo a Ntchito
Zofunikira zokwezedwa za nsalu za spunbond mu muyezo watsopano wadziko zimamanga dongosolo lotsimikizira zamtundu wathunthu kudzera mu "kukhazikika kwadongosolo, kulondola kwachizindikiritso, komanso kuyeserera." Kwa opanga, ndikofunikira kuyang'ana kwambiri pakukhathamiritsa kwaphatikizidwe kwa SMS/SMMS, kugwirizana ndi kufananiza kwa wosanjikiza wa spunbond ndi wosanjikiza wosungunuka, komanso kuwongolera kochokera kwa zotsalira zamankhwala.
Kwa ogula, zinthu zomwe zatsimikiziridwa motsatira mulingo watsopanowu zikuyenera kuyambika, ndipo malipoti owunika azizindikiro za nsalu za spunbond ayenera kuwunikiridwa mosamala. Kukhazikitsidwa kwa zofunikirazi kudzayendetsa makampani opanga zovala zoteteza zachipatala kuti asinthe kuchoka ku "oyenerera" kupita ku "zapamwamba," kupititsa patsogolo chitetezo ndi kudalirika kwa chitetezo chachipatala.
Dongguan Liansheng Non Woven Technology Co., Ltd.idakhazikitsidwa mu Meyi 2020. Ndi bizinesi yayikulu yopanda nsalu yopanga nsalu kuphatikiza kafukufuku ndi chitukuko, kupanga, ndi malonda. Itha kupanga mitundu yosiyanasiyana ya nsalu za PP spunbond zosalukidwa ndi m'lifupi mwake osakwana 3.2 metres kuchokera pa 9 magalamu mpaka 300 magalamu.
Nthawi yotumiza: Nov-27-2025