E904 Shellac

Shellac (Shellac, E904) - ƙyalli. Kayan kwalliyar kwalliya wanda lacworm (Laccifer lacca) ya samar, parasitic akan wasu bishiyoyi masu zafi da zafi a Indiya da kudu maso gabashin Asiya (Croton laccifera da sauransu).

Ana amfani da Shellac wajen kerar lacquers, kayan rufi da kuma daukar hoto. Kafin ƙirƙirar vinyl a cikin 1938, an yi amfani da shellac don samar da bayanai.

Shellac - wannan kalma a cikin mafi yawan mutane yana da alaƙa da aikin manicure. A zahiri, abu, kodayake yana da alaƙa da kayan kwalliya na ƙusoshi, an san shi ƙarƙashin lambar E904 a cikin rarrabuwa na abubuwan ƙari na abinci na duniya, kuma yana nufin abubuwan hana ƙonewa da glazing da ake amfani da su a cikin masana'antar abinci. Icing mai sheki akan kayan zaki, dragees, lollipops, cakulan har ma da 'ya'yan itatuwa, galibi suna bin bayyanarsa ga shellac abinci. Sauran sunayen abubuwan ƙari sune sticklak, gummilak resin ko stocklak, kuma ɗayan fa'idodin da masana'antun abinci ke yaba masa shine asalinsa na halitta.

Bayani na SHELLAC E904

Shellac E904 shine resin granular amphora, wanda ke cikin nau'ikan kayan abinci: anti-flaming and glazing agent. Guduro yana da asalin halitta gaba ɗaya kuma an halatta shi. Ana amfani dashi duka a cikin masana'antar abinci da kuma a cikin magunguna, kwaskwarima da gini. Manyan riguna tare da E904 suna da matukar juriya ga datti, ƙura, karce da haske. Launi na halitta na shellac yana ba da kayan daki na zamani na sarauta.

Hanyar don samun Shellac E904

Shellac wani sharar gida ne na tsutsotsi. Wurin zama na kwari shine Thailand da Indiya. Tsutsotsin suna rayuwa ne akan bishiya kuma suna ciyar da ruwan 'ya'yansu. Ana saki kayan da aka sake yin fa'ida ta cikin ramukan fata. Wannan shi ne albarkatun kasa don samun ƙari na E904. Ana iya sarrafa kayan kayan aiki, wanda ya dogara da samfurin masana'antu na ƙarshe. Za'a iya siyar da guduro a busasshen tsari. Ko dai flakes ne ko tsakuwa. Hakanan na kowa shine shellac ruwa. Don samun shi, an narkar da resin a cikin barasa ethyl.

Properties na E904, sinadaran halaye da kuma samar da inji

Ƙarin abinci na Shellac yana wakiltar mahadi da esters na aromatic da fatty acids hydroxy acid - aluretic, shellolic da sauransu. A abun da ke ciki ya ƙunshi lactones, pigments da shellac kakin zuma. Babban sashi mai aiki (guro) shine 60-80% na ƙari na E904.

Abun yakan shiga samarwa a cikin nau'in flakes waɗanda ke da kauri kaɗan na milimita kaɗan. Shellac baya narke kwata-kwata a cikin ruwa, mai, acetone da ethers. Yana da kyau solubility a alkalis, aliphatic alcohols, matsakaici solubility a benzene, ethanol.

Matsayin narkewar abu shine digiri 80 na ma'aunin celcius. Baya ga juriya na ruwa, yana da juriya ga hasken haske, da kuma tasirin insulating na lantarki.

Na farko ambaton amfani da wannan resin ya samo asali ne tun daga karni na farko BC. Indiya da kasashen kudu maso gabashin Asiya - wurin zama na kwari da ake kira Laccifer lacca (lacquer bugs), kama da kwari.

Wadannan kwari suna cin resin bishiya da ruwan 'ya'yan itace da suke ɓoye daga rassan, haushi da ganyen bishiyoyi. Sakamakon tsarin narkewar tsutsotsin, abubuwan da suke ci sun zama guduro, wanda kwari ke ajiyewa a sakamakon haka a kan rassan da bawon itatuwa. Resin ko lacquer yana bushewa don samar da ɓawon burodi wanda aka tattara don ƙarin aiki.

Na farko, an narkar da albarkatun kasa tare da sodium carbonate - ta wannan hanyar ana tsabtace shellac na gaba daga nau'o'in ƙazantattun kwayoyin halitta (kwari, ganye).

Sakamakon abin da ya haifar yana bleached ta amfani da sodium hypochlorous acid sannan a bushe.

Don kawar da kakin zuma a cikin ƙari, a ƙarshe an ƙaddamar da shi tare da wani bayani mai rauni na sulfuric acid kuma an cire kakin da ba a iya narkewa. A sakamakon haka, ana samun shellac mai bleached wanda aka tsarkake daga kakin zuma.

Baya ga fararen launuka, zai iya zama orange ko launin ruwan kasa mai haske. Hakanan yana yiwuwa a haɗa ƙari mara launi.

Makasudin fasaha na ƙari na E904 shine samar da suturar glazing, rigakafi ko rage ƙarfin samuwar kumfa, da kuma hana mannewa na glazing barbashi da juna.

Yadda ake amfani da kayan a masana'antu

A cikin masana'antar sinadarai, ana amfani da E904 don yin fenti, goge, varnishes don kayan kiɗan katako da kayan ɗaki. Kafin ƙirƙirar vinyl a cikin 40s na ƙarni na ƙarshe, an yi amfani da ɓangaren wajen yin rikodin.

Shellac shine tushen fim ɗin polyethylene da foil na aluminum, ana amfani dashi a cikin masana'antar yadi don taurin yadudduka da makamantansu, sannan kuma wani ɓangare ne na varnishes masu sanya wutan lantarki don zubar da coils na kayan lantarki da sarrafa kayan lantarki.

Shellac wani bangare ne na gashin gashi da shamfu, samfuran salo daban-daban na dogon lokaci, da mascara mai hana ruwa.

Masana'antar kayan kwalliyar ba ta cika ba tare da shellac: masana'antun sun yaba da abubuwan da ke hana ruwa ruwa, kwanciyar hankali da zafin jiki da ikon ƙirƙirar samfuran da suka dace.

Tun 2010, taro samar da resistant gel goge fara a Amurka, wanda ya ƙunshi ƙari E904, bi da bi, da ake kira "Shellac". An bambanta sutura ta musamman ƙarfinsa, jikewar launi da ikon daidaita farantin ƙusa.

Hakanan ana ƙara shi zuwa kayan abinci na abinci da bawo masu kariya na kakin zuma don wasu nau'ikan cuku.

A cikin nau'i na glazing ko ɓarna, ana samun E904 a cikin irin waɗannan abinci:

• 'ya'yan itatuwa citrus ('ya'yan itatuwa citrus, peaches, pears, apples, melons - don maganin saman);
• sweets, lollipops, draagees, cakulan;
• kayayyakin gari tare da icing;
• kofi hatsi;
• cingam;
• marzipan taro.

Baya ga samar da abinci, shellac ya kuma sami aikace-aikacensa a cikin masana'antar harhada magunguna - a matsayin abin rufe fuska ga wasu magunguna a cikin nau'ikan allunan da dragees.

shellac na iya shafar lafiyar ɗan adam

Babu wata bayyananniyar amsa a cikin yarda ko adawa da amfani da shellac a cikin abinci a yau.

An yi nazarin abun a cikin yanayin dakin gwaje-gwaje, kuma ba a sanar da wani bayani na hukuma game da yiwuwar gubar sa ko ciwon daji ba. Hadarin da zai iya haifarwa shine rashin lafiyar jiki.

A wasu lokuta na rashin haƙuri na mutum, abinci da kayan shafawa tare da wani abu a cikin abun da ke ciki na iya haifar da itching da rashes na fata.

Kariyar abinci E904 ba ta shiga jiki ta kowace hanya kuma ana fitar dashi daga gare ta ba canzawa.

Marufi da dokokin ajiya

Shellac za a iya ɗauka da kuma adana shi a cikin kwantena daban-daban, alal misali, jute ko jakunkuna na masana'anta (dole ne a yarda da kayan aiki don hulɗa da kayan abinci), a cikin kwalaye na katako ko kwali, kwalaye, ganguna.

A cikin kantin sayar da kayayyaki, ana samun abu a cikin kwantena na foil ko a cikin marufi na filastik.

Ƙarshen E904 al'ummar duniya ne ke rarraba shi azaman mai aminci. An ba da izinin amfani da shi a cikin jihohi da yawa: a cikin Amurka, Kanada, ƙasashen EU, Rasha. Shahararriyar cakulan cakulan ta Ritter a cikin abun da ke ciki ta ƙunshi shellac a matsayin ɓangaren glazing.

Tun da abu yana da asali na asali, yana da 'yan adawa kaɗan: a gaba ɗaya, amfani da shi a matsayin wani ɓangare na kayan abinci ba ya haifar da rikici.

Nazarin illolin shellac ga lafiyar ɗan adam yana ci gaba a yau, amma ya zuwa yanzu duk binciken ya nuna cewa ƙarin abincin E904 ba ya amfana, amma ba ya cutar da jiki.