11941 Buga Foda

Fasaloli & Fa'idodi

1. Ba ya ƙunshi APEO ko phosphorus, da sauransu. Ya dace da buƙatun kare muhalli.
2. Kyakkyawan sakamako na hakar, bleaching, wankewa da tarwatsawa don datti da ƙazanta.
3. Yana ba da yadudduka kyakkyawan tasirin capillary, babban fari, inuwa mai haske da ƙarfi mai ƙarfi.
4. Ya dace da zazzagewa, bleaching da farar aikin wanka ɗaya.Yana sauƙaƙa tsarin gargajiya sosai.Yana rage deoxygenization, neutralization da tsarin wanke ruwa.Yana adana makamashi kuma yana rage gurbatar yanayi.

Abubuwan Al'ada

Kunshin

50kg kwali drum & fakiti na musamman akwai don zaɓi

NASIHA:

Zazzage auduga da sauran fib ɗin cellulosicers

Dogarowa shine mafi mahimmancin tsarin rigar da ake amfani da kayan yadi kafin rini ko bugu.Yawancin tsarin tsaftacewa ne wanda ake cire abubuwan waje ko ƙazanta.Tsarin ƙwanƙwasa, yayin da ake tsarkake α-cellulose, yana ba da halayen hydrophilic da haɓakar da ake buƙata don matakai na gaba (bleaching, mercerizing, rini ko bugu).Kyau mai kyau shine ginshiƙin kammala nasara.Ana yin la'akari da aikin aiwatar da zazzagewa ta hanyar inganta jimiri na kayan da aka lalata.

Musamman ma, ana gudanar da zazzagewa don cire mai da ba a so, kitse, waxes, datti mai narkewa da duk wani ɓarke ​​​​ko datti mai mannewa da zaruruwa, wanda in ba haka ba zai kawo cikas ga yin rini, bugu da ƙarewa.Tsarin ainihin ya ƙunshi jiyya da sabulu ko wanka tare da ko ba tare da ƙara alkali ba.Dangane da nau'in fiber, alkali na iya zama mai rauni (misali soda ash) ko mai ƙarfi (caustic soda).

Lokacin da ake amfani da sabulu, samar da ruwa mai laushi mai kyau ya zama dole.Iron ion (Fe³⁺da Ca²⁺) a cikin ruwa mai wuya da pectin na auduga na iya samar da sabulu maras narkewa.Matsalar ta fi tsanani lokacin da ake ci gaba da zazzagewa a cikin ci gaba da tsari wanda ya haɗa da wanka na padding inda rabon giya ya fi ƙasa da tsarin tsari;Ana iya amfani da wakili na chelating ko sequestering, misali, Ethylenediaminetetraacetic acid (EDTA), Nitrilotriacetic acid (NTA), da sauransu, don hana ƙura da samuwar fim.Kayan aikin roba mai inganci yana ba da ma'auni mai kyau tare da wetting, tsaftacewa, emulsifying, watsawa da kayan kumfa, don haka yana ba da damar tsaftacewa mai kyau.Anionic, wanki ba na ionic ko gaurayensu, kayan wanke-wanke mai taimako mai ƙarfi da sabulu ana amfani da su don zazzagewa.Don hanzarta aiwatar da zazzagewa, ana amfani da abubuwan da ake amfani da su a cikin haɗin gwiwa tare da manyan abubuwan narkewar tafasa (cyclohexanol, methylcyclohexanol, da sauransu) wani lokaci, amma tsarin ƙila ba zai zama abokantaka ba.Ayyukan abubuwan kaushi shine galibi don narkar da kitse da kakin zuma maras narkewa.

Ana ƙara masu gini a cikin wanka mai tafasa don ƙara aikin sabulu ko wanka.Waɗannan su ne gabaɗaya gishiri irin su borates, silicates, phosphates, sodium chloride ko sodium sulfate.Sodium metasilicate (Na₂SiO₃,5h ku₂O) na iya kuma yin aiki azaman abin wanke-wanke da buffer.Ayyukan buffer shine fitar da sabulu daga lokaci na ruwa zuwa masana'anta / ruwa da ke dubawa kuma saboda haka ƙara yawan sabulu akan masana'anta.

Lokacin tafasa auduga tare da soda caustic, iskar da aka makale na iya haifar da oxidation na cellulose.Ana iya hana wannan ta ƙara wani madaidaicin wakili mai ragewa kamar sodium bisulphite ko ma hydrosulphite a cikin barasa.

Hanyoyin baƙar fata don kayan masaku daban-daban sun bambanta sosai.Daga cikin filaye na halitta, danyen auduga yana samuwa a cikin mafi tsafta.Jimlar adadin ƙazanta da za a cire bai wuce 10% na jimlar nauyi ba.Duk da haka, tafasa mai tsawo yana da mahimmanci saboda auduga yana dauke da kakin zuma mai nauyi, wanda ke da wuya a cire.Sunadaran kuma suna kwance a tsakiyar rami na fiber (lumen) wanda ba zai iya isa ga sinadarai da ake amfani da su ba.An yi sa'a cellulose ba shi da tasiri ta hanyar magani mai tsawo tare da maganin caustic har zuwa maida hankali na 2% idan babu iska.Don haka, yana yiwuwa a juyar da duk ƙazanta yayin zazzagewa, sai dai abubuwan canza launin halitta, zuwa nau'i mai narkewa, wanda za'a iya wanke shi da ruwa.

Zazzage zaren cellulosic banda auduga abu ne mai sauƙi.Bast fibers kamar jute da fl ax ba za a iya zazzage su da yawa saboda damar cire wasu abubuwan da ba su da fibrous tare da lalacewa na kayan.Gabaɗaya ana shafa waɗannan ta hanyar amfani da sabulu ko wanka tare da ash soda.Ana amfani da Jute akai-akai ba tare da ƙarin tsarkakewa ba, amma fl ax da ramie yawanci ana shafa su kuma galibi ana zubar dasu.Jute don rini an riga an yi masa dusar ƙanƙara amma yawancin lignin ya rage, wanda ke haifar da rashin saurin haske.

Tun da ƙazanta na halitta kamar su kakin zuma na auduga, abubuwan pectic da furotin suna da alaƙa galibi a cikin bangon farko, tsarin lalata yana nufin cire wannan bangon.