muhimmancin ruwa
Ruwa shine tushen rayuwa. Ruwa na iya haɓaka metabolism na ɗan adam, taimakawa gumi, da daidaita zafin jiki. Ruwan sha ya zama dabi'ar rayuwa ga mutane. A cikin 'yan shekarun nan, kofuna na ruwa suma suna ci gaba da yin sabbin abubuwa, irin su gasar cin kofin duniya mai suna "Big Belly Cup" da kuma shahararren "Ton Ton Bucket". "Big Belly Cup" yana da fifiko ga yara da matasa saboda kyawawan siffarsa, yayin da sabon abu na "Ton-ton Bucket" shine cewa kwalban yana da alamar lokaci da ma'aunin ruwan sha don tunatar da mutane su sha ruwa a ciki. lokaci. A matsayin kayan aikin ruwan sha mai mahimmanci, ta yaya ya kamata ku zaɓi lokacin siyan shi?
Babban kayan abinci kofuna na ruwa
Lokacin siyan kofi na ruwa, abu mafi mahimmanci shine duba kayan sa, wanda ya haɗa da amincin duka kofin ruwa. Akwai manyan nau'ikan kayan filastik gama gari guda huɗu akan kasuwa: PC (polycarbonate), PP (polypropylene), tritan (Tritan Copolyester copolyester), da PPSU (polyphenylsulfone).
1. PC kayan
PC kanta ba mai guba bane, amma PC (polycarbonate) abu baya jure yanayin zafi. Idan an zafi ko sanya shi a cikin yanayin acidic ko alkaline, zai iya sakin abu mai guba bisphenol A cikin sauƙi. Wasu rahotanni na bincike sun nuna cewa bisphenol A na iya haifar da cututtuka na endocrine. Ciwon daji, kiba da cuta ke haifarwa, balaga da balaga a yara, da dai sauransu na iya zama alaƙa da bisphenol A. Kasashe da yawa, irin su Kanada, sun hana ƙara bisphenol A cikin marufin abinci a farkon kwanakin. Kasar Sin ta kuma haramta shigo da kwalaben jarirai na PC a shekarar 2011.
Yawancin kofuna na ruwa na filastik a kasuwa ana yin su da PC. Idan ka zaɓi kofin ruwa na PC, da fatan za a siya ta tashoshi na yau da kullun don tabbatar da cewa an samar da shi cikin bin ƙa'idodi. Idan kuna da zaɓi, ni da kaina ban bayar da shawarar siyan kofin ruwan PC ba.
2.PP abu
PP polypropylene ba shi da launi, mara wari, mara guba, translucent, ba ya ƙunshi bisphenol A, kuma yana da flammable. Yana da wurin narkewa na 165 ° C kuma zai yi laushi a kusan 155 ° C. Yanayin zafin jiki na amfani shine -30 ~ 140 ° C. Kofuna na tebur na PP su ne kawai kayan filastik da za a iya amfani da su don dumama microwave.
3.tritan abu
Tritan kuma shine polyester sinadari wanda ke warware yawancin gazawar robobi, gami da tauri, ƙarfin tasiri, da kwanciyar hankali na hydrolytic. Yana da juriya da sinadarai, mai bayyana gaskiya sosai, kuma baya ɗauke da bisphenol A a cikin PC. Tritan ya wuce takardar shaidar FDA (Fadar Tuntun Abinci (FCN) No.729) na Hukumar Abinci da Magunguna ta Amurka kuma shine kayan da aka keɓe don samfuran jarirai a Turai da Amurka.
4.PPSU abu
PPSU (polyphenylsulfone) abu ne mai amorphous thermoplastic, tare da high zafin jiki juriya na 0 ℃ ~ 180 ℃, iya rike ruwan zafi, yana da high permeability da high hydrolysis kwanciyar hankali, kuma shi ne a yara kwalban abu da zai iya jure tururi haifuwa. Ya ƙunshi bisphenol A.
Don kare lafiyar kanku da dangin ku, da fatan za a sayi kwalabe na ruwa daga tashoshi na yau da kullun kuma a hankali bincika abun da ke ciki lokacin siye.
Hanyar duba kofin ruwan robo na matakin abinci Kofin ruwa kamar "Big Belly Cup" da "Ton-ton Bucket" duk an yi su da filastik. Lalacewar samfuran filastik gama gari sune kamar haka:
1. Matsaloli daban-daban (mai ɗauke da ƙazanta): suna da siffar maki, kuma matsakaicin diamita shine girmansa idan aka auna.
2. Burrs: Kumburi na layi a gefuna ko layin haɗin gwiwa na sassan filastik (yawanci lalacewa ta hanyar gyare-gyare mara kyau).
3. Waya ta Azurfa: Gas ɗin da aka samu yayin yin gyare-gyare yana sa saman sassan filastik ya canza launin (yawanci fari). Yawancin wadannan iskar gas
Danshi ne a cikin guduro. Wasu resins cikin sauƙin ɗaukar danshi, don haka yakamata a ƙara tsarin bushewa kafin masana'anta.
4. Kumfa: Wuraren da ke cikin robobin suna haifar da zagayawa a saman sa.
5. Nakasawa: Lalacewar sassan filastik da ke haifar da bambance-bambancen danniya na ciki ko rashin sanyi a lokacin masana'antu.
6. Ejection whitening: The whitening da deformation na ƙãre samfurin lalacewa ta hanyar fitarwa daga mold, yawanci faruwa a sauran karshen ejection bit (mahaifiyar mold surface).
7. Karancin abu: Saboda lalacewa ga mold ko wasu dalilai, ƙãre samfurin na iya zama unsaturated da rashin kayan.
8. Rushewar bugu: Farar tabo a cikin rubutun da aka buga sakamakon ƙazanta ko wasu dalilai yayin bugawa.
9. Bacewar bugu: Idan abin da aka buga ya ɓace tarkace ko sasanninta, ko kuma idan lahanin bugun rubutun ya fi 0.3mm, ana kuma ɗauka cewa ya ɓace.
10. Bambancin launi: yana nufin ainihin launi na ɓangaren da kuma samfurin samfurin da aka yarda ko lambar launi ya wuce ƙimar da aka yarda.
11. Launi iri ɗaya: yana nufin wurin da launi yake kusa da launin ɓangaren; in ba haka ba, yana da launi daban-daban.
12. Gudun ruwa: Gudun ruwa na filastik mai zafi da aka bar a ƙofar saboda gyare-gyare.
13. Alamar walda: Alamun layi da aka kafa a saman wani sashe saboda haɗuwar narkakkar kogunan robobi biyu ko fiye.
14. Matsalolin taro: Baya ga gibin da aka kayyade a cikin zane, gibin da ke tattare da hada abubuwa biyu.
15. Fine scratches: surface scratches ko alamomi ba tare da zurfin (yawanci lalacewa ta hanyar manual aiki).
16. Hard scratches: Zurfafa zurfafa zurfafa zurfafa zurfafa zurfafa zurfafa a saman sassan lalacewa ta hanyar wuya abubuwa ko kaifi abubuwa (yawanci lalacewa ta hanyar manual aiki).
17. Hakuri da raguwa: Akwai alamun haƙora a saman ɓangaren ko girman ya yi ƙasa da girman ƙira (yawanci lalacewa ta hanyar gyare-gyare mara kyau).
18. Rarraba launi: A cikin samar da filastik, tube ko ɗigo na alamun launi suna bayyana a cikin yanki mai gudana (yawanci yana haifar da ƙarin kayan da aka sake yin fa'ida).
19. Ganuwa: yana nufin cewa lahani tare da diamita kasa da 0.03mm ba a iya gani, sai dai ga LENS m yanki (bisa ga nisan ganowa da aka ƙayyade don kowane sashi).
20. Bump: lalacewa ta hanyar samfurin ko gefen da wani abu mai wuya ya buge shi.
Lokacin aikawa: Agusta-15-2024