Zopangidwa ndi Nsalu Zopanda Ubweya Zolimba

I. Njira Yopangira Nsalu Yopanda Ulusi Yotanuka

Chimake cha nsalu yopanda nsalu yoluka ya spunlace chili pakukwaniritsa mgwirizano wa "kukhuthala + kapangidwe ka spunlace" kudzera mu kusankha zinthu zopangira ndi kukonza njira. Changshu Yongdeli Spunlaced Nonwoven Fabrics Co., Ltd. imatsimikizira kusinthasintha kokhazikika komanso magwiridwe antchito odalirika kudzera mukuwongolera mosamala njira. Njira yeniyeniyo ndi iyi:

Kusankha ndi chiŵerengero cha zinthu zopangira: Sankhani ulusi wa polyester wosalala wapamwamba kwambiri. Ulusi wa polyester wosalala umagwiritsa ntchito mitundu yosinthidwa yokhala ndi chiŵerengero chapamwamba cha kuchira (chiŵerengero cha kuchira cha elastic ≥ 90%), chomwe chingabwererenso msanga mutatambasula;

Kutsegula ndi kusakaniza: Gwiritsani ntchito chipangizo chotsegulira ndi kusakaniza chopangidwa mwapadera kuti mufalitse ulusi wa polyester wosalala. Zipangizozi zimagwiritsa ntchito kapangidwe kotsika kuti ulusi wosalala usataye kulimba kwawo chifukwa chotambasuka kwambiri; kenako zimalowa mu makina osakaniza a biaxial, komwe magulu angapo a mano osakaniza amapanga kusakaniza kwa ulusi wofanana kuti zitsimikizire kufalikira kofanana kwa ulusi wosalala mu ukonde wa nsalu, kupewa kulimba kosagwirizana m'malo ena, ndikuyika maziko a mapangidwe a ukonde wotsatira ndi mawonekedwe a elastic.

Kusakaniza ndi kupanga ukonde (kulamulira kolunjika kwa elastic): Ulusi wotambasuka umalowa mu makina osakaniza ulusi wotambasuka wolondola kwambiri. Makina osakaniza amagwiritsa ntchito nsalu yapadera ya singano (nsalu ya singano yocheperako) ndi ma rollers osinthika kuti alekanitse ulusiwo pamene akuwongolera njira yokonzera ulusi (makamaka kusinthasintha kwa kutalika, ndi kusinthasintha kwa mbali ngati chowonjezera), kufananiza zofunikira za elastic za zigamba zachipatala (monga kusintha kwa kutalika kwa mwendo kuti zigwirizane ndi njira yoyendetsera miyendo). Panthawi yosakaniza, kuyang'anira nthawi yeniyeni kusintha kwa makulidwe (kolamulidwa mkati mwa ±2%) kumatsimikizira kufanana kwa ukonde wa nsalu, kupewa makulidwe osafanana omwe amakhudza zotsatira za utoto ndi zomatira.

Kulimbitsa kwa spunlace yotanuka (njira yofunika kwambiri): Iyi ndi njira yofunika kwambiri yopangitsa kuti chinthucho chikhale chotanuka, pogwiritsa ntchito njira ya "multiple progressive pressure spunlace":

Chingwe choyamba chopopera mpweya pang'ono (kupopera mpweya 5-8 MPa): Choyamba konzani kapangidwe ka nsalu kuti mupewe kusuntha kwa ulusi wambiri chifukwa cha chingwe chopopera mpweya kwambiri, kuteteza kapangidwe ka ulusi wa polyester wopopera mpweya;

Spunlace yolunjika pakati (kukakamiza 10-12 MPa): Kudzera mu mutu wa spunlace wopendekeka (pa ngodya ya 30°-45° ku ukonde wa nsalu) kuti upopere molunjika, zomwe zimapangitsa kuti ulusi wotambasuka upange kapangidwe ka "tangle - elastic reserve" motsatira njira yokonzedweratu (longitudinal), zomwe zimapereka malo otambasula ndi kubwerera m'mbuyo;

Spunlace yopangira mphamvu yamphamvu (kupanikizika 13-15 MPa): Gwiritsani ntchito mutu wa spunlace wokhuthala kwambiri kuti mulimbikitse bwino ulusi wa nsalu, kuonetsetsa kuti ulusi wokhuthala umalumikizana bwino ndi ulusi wina, pamene mukulamulira bwino kupanikizika kuti ulusi usaphwanyidwe, pamapeto pake kupanga kapangidwe kokhazikika ka "ulusi wokhuthala ngati chimango, spunlace entanglement ngati chithandizo", ndi kufalikira kwa nthawi yayitali mpaka 15%-30% ndi kufalikira kwa mbali mpaka 8%-15%, kukwaniritsa zofunikira za zigamba zachipatala zogwirira ntchito limodzi.

Kutaya madzi m'thupi ndi mawonekedwe ake: Nsalu yonyowa yosalala yopanda ulusi pambuyo polimbitsa spunlace imalowa mu chipangizo chopanda madzi m'thupi (kuchepa kwa madzi m'thupi 70%-80%), kenako imalowa mu chipangizo chowumitsira mpweya wotentha (kutentha 70-90°C), ndi kutentha kotsika kuposa kutentha kwa nsalu yosalala ya spunlace (100-120°C), zomwe zingapewe kutaya kulimba kwa ulusi wa polyester chifukwa cha kutentha kwambiri. Panthawi yowumitsira, mawonekedwe a elastic amachitidwa nthawi imodzi. Kupsinjika kwa pamwamba pa nsalu kumayendetsedwa ndi ma rollers owongolera kutentha kuti atsimikizire kuti chinthucho chimasunga magwiridwe antchito okhazikika a elastic pambuyo powuma, ndi kuchuluka kwa chinyezi komwe kumayendetsedwa mkati mwa 5%.

Kukonza pamwamba pa nsalu (kufananiza chophimba): Pazofunikira zokometsera zomwe zikubwera, zinthu zouma zimakonzedwanso pamwamba pa nsalu: pogwiritsa ntchito ukadaulo wokonza pamwamba pa nsalu kuti ziwonjezere mphamvu ya pamwamba (kukhuthala kwa pamwamba ≥ 38 mN/m), kukonza kumamatira ku zomatira zotentha zosungunuka, ma silicone gels, ndi zinthu zina zokometsera, ndikupewa mavuto "ochotsa glue"; nthawi yomweyo, kukonza kusalala kumachitika, pokanikiza pang'ono pamwamba pa nsalu ndi ma rollers ofewa, kuonetsetsa kuti pamwamba pa nsalu pali kusalala (kupotoka kwa flatness ≤ 0.1 mm/m), kupereka maziko a chophimba chofanana.

Kudula ndi kuwunika khalidwe: Malinga ndi zofunikira za m'lifupi mwa mipukutu ya makasitomala ogwiritsira ntchito zomatira zachipatala (m'lifupi wamba 0.5 - 2 m), zinthuzo zimadulidwa ndi makina odulira olondola kwambiri. Njira yodulira imagwiritsa ntchito kuwongolera kotsekedwa kuti ipewe kusintha kwa elastic kwa zinthuzo chifukwa cha kutambasuka; mu njira yowunikira khalidwe, kuwonjezera pa mawonekedwe ndi mayeso anthawi zonse, "kuyesa magwiridwe antchito osalala" (kuyesa kuchuluka kwa kutalika ndi kuchuluka kwa elastic recovery ndi makina oyesera omangika) ndi "kuyesa kugwirizanitsa kuvala" (kuyesa kuvala pambuyo poyesa kumamatira kwa gulu lomatira) zimawonjezedwa kuti zitsimikizire kuti gulu lililonse la zinthu likukwaniritsa miyezo ya substrates za zomatira zachipatala.

II. Mitundu ndi ubwino wa zokutira zogwirizana

Nsalu yosalala ya spunlace yosaluka ndi yoyenera kugwiritsa ntchito zinthu zinayi zophikira zomwe zimagwiritsidwa ntchito kwambiri popanga zinthu zomatira zachipatala. Kudzera mu zinthu zopangira ndi kukonza njira, imakwaniritsa kugwirizana bwino, kuthetsa mavuto monga "kuphimba kosagwirizana, kugawanitsa, komanso kukhudza mphamvu ya mankhwala" ya zinthu zachikhalidwe. Ubwino wake wogwirizana ndi izi:

Zimagwirizana ndi zokutira zomatira zotentha: Zomatira zotentha zosungunuka (monga mtundu wa EVA, mtundu wa SBS) zimagwiritsidwa ntchito kwambiri popanga mapepala a pulasitala ndi zomatira zochepetsa ululu. Pambuyo pokonzekera pamwamba, mphamvu ya pamwamba imawonjezeka, ndipo zokutira zomatira zotentha zosungunuka zimatha kufalikira mofanana, ndi kupindika kwa makulidwe a guluu ≤ 5%; nthawi yomweyo, kapangidwe kake kotanuka ka nsalu kamafanana ndi kusinthasintha kwa guluu wosungunuka wotentha, ndipo guluu womatira sungasweke kwambiri akatambasulidwa, kuonetsetsa kuti guluu womatira umakhalabe bwino panthawi yoyenda miyendo, kupewa kutaya mphamvu ya mankhwala.

Yogwirizana ndi silicone gel covering: silicone gel ili ndi vuto lochepa la allergenicity komanso yolimba kwambiri, nthawi zambiri imagwiritsidwa ntchito m'magawo ochepetsa malungo komanso mapesi apadera a khungu lofewa. Ulusi wa polyester wotanuka wa mankhwalawa umagwirizana bwino ndi silicone gel, popanda kuyanjana ndi mankhwala; kapangidwe ka spunlace kakang'ono ka pamwamba pa nsalu kumathandiza silicone gel kulowa mofanana m'mipata ya ulusi, ndikupanga kapangidwe ka "gel - nsalu" kogwirizana kwambiri, ndi kukwera kwa kumatirira kopitilira 25% poyerekeza ndi nsalu wamba ya spunlace yosalukidwa, kupewa "kukweza m'mphepete ndi kusokoneza" kwa chigambacho panthawi yogwiritsa ntchito.

Zimagwirizana ndi zokutira mafuta: Zomatira zamafuta (monga zomatira zamafuta zamtundu wa rabara) zimakhala ndi kukhuthala kwakukulu komanso kukana kukalamba, zoyenera kugwiritsidwa ntchito kwa nthawi yayitali. Kapangidwe kake kotanuka ka mankhwalawa kamatha kuchepetsa kupsinjika kwamkati kwa zomatira zamafuta panthawi yotambasula, kuchepetsa "kusweka" kwa zomatira zomwe zimayambitsidwa ndi kuyenda kwa miyendo; nthawi yomweyo, kapangidwe kake kopumira ka pamwamba pa nsalu sikukhudzidwa ndi zokutira mafuta, komabe kumakhalabe ndi mpweya wabwino (kupuma ≥ 300 L/m²·s), kupewa kusasangalala pakhungu komwe kumachitika chifukwa cha kutentha panthawi yogwiritsa ntchito.

Yogwirizana ndi hydrogel: Hydrogel ili ndi hygroscopicity komanso kuzizira kwambiri, chifukwa ndi mtundu wa guluu wofunikira kwambiri wa ma patches ochepetsa malungo ndi ma band-aids. Ulusi womatira womwe umagwirizana ndi chinthucho ukhoza kuwonjezera luso la nsalu kugwira hydrogel, kupewa kutaya hydrogel chifukwa cha mphamvu yokoka; kulimba kwa nsalu kumatha kusintha molingana ndi kuchuluka kwa kutupa kwa hydrogel, zomwe zimapangitsa kuti ikhale yosalimba ikamamatira pakhungu, ndipo chinyezi chomwe chili mu hydrogel sichidzakhudza momwe chinthucho chimagwirira ntchito, ndikuwonetsetsa kuti chigambacho chili cholimba panthawi yomwe chikugwiritsidwa ntchito (nthawi zambiri maola 8 - 12).

III. Ubwino waukulu wa nsalu yosalala yopanda ulusi

Kulimba ndi kulimba kwabwino: Kutalika kwa kutalika kwa chinthucho ndi 15% - 30%, kutalika kwa mbali ndi 8% - 15%, ndipo kuchira kwa elasticity ndi ≥ 90%. Chimatha kumamatira kwambiri ku mafupa a anthu (monga mawondo, zigongono), makosi, ndi chiuno ndi ziwalo zina zosunthika, kutambasula ndi kubwerera motsatizana ndi kuyenda kwa miyendo, kupewa mavuto monga "makwinya, kugwa, ndi kukoka khungu" la zigamba zachikhalidwe zopanda elastic, ndikukweza chitonthozo ndi kukhazikika kwa zigamba zomatira zachipatala. Kusinthasintha kwakukulu ndi kulimba: Kudzera mu chithandizo chapamwamba komanso kukonza bwino zinthu zopangira, imatha kusintha bwino zinthu zinayi zazikulu monga guluu wosungunuka wotentha, gel ya silicone, guluu wopangidwa ndi mafuta, ndi gel wopangidwa ndi madzi. Mphamvu yomatira ya guluu womatira ndi ≥ 5N/2.5cm (yoyesedwa malinga ndi GB/T 2792-2014), ndipo palibe chiopsezo cha delamination panthawi yogwiritsa ntchito; nthawi yomweyo, kukana kutopa (kukwawa kwa Martin-Dale ≥ nthawi 500 popanda kuwonongeka) ndi kukana kukalamba (kutentha -20℃ - 60℃, kukwaniritsa zofunikira za malo azachipatala) za ulusi wa polyester wotanuka zimaonetsetsa kuti chigamba chomatira chili cholimba panthawi yosungira ndikugwiritsa ntchito.

Yofewa pakhungu, yopumira komanso yoteteza chilengedwe: Ulusi wa polyester wofewa uli ndi kapangidwe kofewa, ndipo palibe kukwiya komwe kumachitika pakhungu, zomwe zimapangitsa kuti zikhale zoyenera magulu akhungu osavuta kumva; kapangidwe ka spunlace kamasunga ma pores ofanana, ndi mpweya wokwanira wa ≥ 300L/m²・s, zomwe zingathandize kupuma bwino pakhungu ndikuchepetsa kutentha ndi zoopsa za ziwengo pogwiritsa ntchito chigamba chomatira; njira yopangira siwonjezera zomatira za mankhwala, kokha kudzera mu mphamvu ya spunlace, ndipo mankhwalawa akutsatira GB 18401-2010 "National Textile Product Basic Safety Technical Specifications" ndi YY/T 0334-2022 "Medical Deaerated Cotton", yopanda formaldehyde kapena zotsalira zachitsulo cholemera, ndipo ndi yotetezeka pazochitika zachipatala.

Kuphimba kofanana ndi kukonza kosavuta: Kusalala kwa pamwamba kumakhala kokwera (kupotoka kwa kusalala ≤ 0.1mm/m2), ndipo makulidwe ake ndi ofanana (kupotoka kwa makulidwe ± 2%). Pakuphimba, guluu womata ukhoza kuphimba mofanana, popanda mavuto a guluu wochuluka kapena wosakwanira m'malo ena; nthawi yomweyo, chinthucho chimakhala ndi magwiridwe antchito abwino odulira, ndipo pakudula, palibe kutayika kwa ulusi m'mphepete, ndipo chingadulidwe molondola malinga ndi kukula kosiyanasiyana kwa zigawo zomatira zachipatala (monga mawonekedwe ozungulira, amakona anayi, ndi osasinthasintha), zomwe zimapangitsa kuti makasitomala azitha kukonza mosavuta.

Ⅳ. Kulemera kwa nsalu yosalala yopanda ulusi

Nsalu yolimba ya spunlace yosaluka yopangidwa ndi Changshu Yongdeli Spunlaced Non-Woven Fabric Co., Ltd., yomwe imayang'ana kwambiri zofunikira za zida zomatira zamankhwala, imalemera 70g/㎡ - 120g/㎡, zomwe zimatha kusinthidwa mosavuta malinga ndi mtundu wa chigamba chomatira (monga zigamba zoziziritsira zopepuka, zigamba za plaster zokhuthala); makhalidwe ndi zochitika zoyenera za mtundu uliwonse wa kulemera ndi izi:

Ⅴ. Zochitika zazikulu zogwiritsira ntchito - Mapepala omatira achipatala azachipatala

Monga maziko a zomatira zachipatala, nsalu yopanda ulusi yoluka, yokhala ndi ubwino wa "kumatira kolimba, kusinthasintha ku mitundu yosiyanasiyana ya zomatira, komanso yotetezeka pakhungu", yakhala ikugwiritsidwa ntchito kwambiri m'zochitika zachipatala zotsatirazi:

Zipangizo zoyambira za pulasitala: Zoyenera kugwiritsa ntchito ma plasitala achikhalidwe cha mankhwala achi China, kusinthasintha kwa mankhwalawa kumatha kukwanira m'chiuno, mapewa, ndi zina zotero, kupewa makwinya a pulasitala chifukwa cha kuyenda kwa miyendo, zomwe zimalepheretsa kuti mankhwalawo asalowe; zimagwirizana ndi guluu wosungunuka wotentha kapena wokutira wopangidwa ndi mafuta, wokhala ndi mphamvu yolimba yomatira, kuonetsetsa kuti chigamba cha pulasitala sichigwa mkati mwa maola 8-12 ogwiritsidwa ntchito, ndipo kapangidwe kake kopumira kangachepetse kutentha kwa khungu komwe kumachitika chifukwa cha zigawo za mankhwala ndikuchepetsa chiopsezo cha ziwengo.

Zipangizo zoyambira za chigamba chochepetsa ululu: Pazigamba zochepetsa ululu zomwe zimapweteka minofu ndi mafupa, kulimba kwa mankhwalawa kumatha kutambasuka mogwirizana ndi kuyenda kwa mwendo, popanda kukoka pamalo opweteka; zimagwirizana ndi silicone gel coating (zosayambitsa ziwengo), zoyenera odwala ululu kwa nthawi yayitali, komanso kufewa kwa pamwamba pa nsalu kumatha kuchepetsa kuyabwa pakhungu pamalo opweteka, ndikuwonjezera chitonthozo chogwiritsa ntchito.

Zipangizo zoziziritsira: Monga zipangizo zoziziritsira za ana ndi akuluakulu, chinthu cholemera pang'ono (35-45g/㎡) ndi chopepuka komanso chopumira, chimagwirizana ndi utoto wa gel wochokera m'madzi, womwe ungasamutse mwachangu kuzizira, kuchepetsa kutentha kwa thupi; kapangidwe kake kotanuka kakhoza kukwanira pamphumi, pakhosi, ndi zina zotero, ndipo ngakhale ana atakhala otanganidwa, sikophweka kugwa, pomwe zinthu zofewa pakhungu zimapewa ziwengo za pakhungu za ana.

Zinthu zoyambira pa tepi ya barb: Chifukwa cha kupezeka kwa zinthu zambiri zosungunuka m'madzi mu tepi ya barb, kufunikira kwa kuyamwa ndi mphamvu ya zinthu zoyambira n'kwakukulu, chinthu cholemera kwambiri (66-80g/㎡) chimatha kunyamula bwino gel ndi zinthu zoyambira pamadzi, kuteteza kutayika kwa zinthuzo; kapangidwe kake kotanuka kakhoza kusinthidwa kuti kagwirizane ndi malo olumikizirana ndi malo ena osunthika, popanda kumva kulimba panthawi yolumikizana, ndipo mpweya wabwino umatsimikizira kulowa bwino kwa zinthu zoyambira pa mankhwala, ndikuwonjezera mphamvu ya kuyamwa kwa mankhwala.

Ⅵ. Ntchito za kampani ndi chitsimikizo cha khalidwe Changshu Yongdeli Spunlaced Nonwoven Fabrics Co., Ltd. yakhazikitsa njira yowongolera khalidwe la zinthu zotanuka zopanda nsalu: kumapeto kwa zinthu zopangira, imagwira ntchito limodzi ndi ogulitsa ulusi wa polyester odziwika bwino, ndipo imachita mayeso obwezeretsa kusinthasintha komanso kuyera kwa gulu lililonse la zinthu zopangira; kumapeto kwa kupanga, ili ndi zida zowunikira kusinthasintha pa intaneti kuti iwunikire kuchuluka kwa kufalikira ndi magwiridwe antchito a zinthuzo nthawi yeniyeni; kumapeto kwa chinthu chomalizidwa, imalandira chithandizo cha aseptic malinga ndi miyezo yachipatala (kupereka ntchito zoyeretsera za EO kapena ntchito zoyeretsera za gamma-ray), ndipo imayesedwa ndi mabungwe ena ovomerezeka (monga SGS, CNAS certification) kuti atsimikizire kuti zinthuzo zikukwaniritsa zofunikira zogwiritsidwa ntchito pazachipatala.

Nthawi yomweyo, kampaniyo ikhoza kupereka ntchito zomwe zakonzedwa malinga ndi zosowa za makasitomala: ikhoza kusintha chiŵerengero cha ulusi kuti ikwaniritse milingo yosiyanasiyana yolimba (monga mtundu wolimba kwambiri, mtundu wochepa wolimba), ikhoza kusintha m'lifupi mwa nsalu (0.5 - 2m) ndi kutalika kwa mpukutu, komanso ikhoza kupereka ntchito zoyesera zopaka utoto kuti zithandize makasitomala kukonza njira yomatira ndi njira yomatira, kukwaniritsa "zomatira" zoyenera bwino.

Changshu Yongdeli Spunlaced Nonwoven Fabrics Co., Ltd. nthawi zonse yakhala "yolunjika ku zosowa za akatswiri azachipatala", ikupititsa patsogolo magwiridwe antchito otambalala komanso kusinthasintha kwa nsalu zopanda nsalu zotanuka. M'tsogolomu, idzapanganso "nsalu zopanda nsalu zotanuka zotsutsana ndi mabakiteriya" ndi "nsalu zopanda nsalu zotanuka kwambiri", kukulitsa kugwiritsidwa ntchito kwake m'zigamba zachipatala zapamwamba, zigamba zosamalira mabala, ndi zina zotero, ndikupereka mayankho apamwamba komanso aukadaulo kwa makampani azaumoyo azachipatala, kugwira ntchito limodzi ndi makasitomala kuti ateteze thanzi.