Shim lam
Food-grade PET hpe lu sha hte lu sha ni hpe shinggyin ai hta grai lang ai rai nna, shim lum ai hte ngang grin ai a matu grai masat da hkrum ai. N kaja ai arung arai ni hpe n shapraw ya ai sha, mungkan ting na malu masha shimlam masat masa ni hpe hkan sa ai majaw, lang ai shaloi, lu sha ai ni hpe myit simsa hkra galaw ya lu ai. Raitim, lam langai hpe laksan sadi ra ai: PET gaw nbung katsi ai shara hta DEHP+ zawn re ai n kaja ai arung arai nkau mi hpe shapraw kau chye ai. Dai majaw, PET hka htung ni hpe lang ai shaloi, n kaja ai arung arai ni n pru hkra, nbung katsi ai shara hpe koi gam na matu sadi ra ai.
Lusha-grade PP gaw anhte a shani shagu na sak hkrung lam hta shara shagu hta nga ai, ga shadawn, supermarket ni hta n-gun nnan- tawn da ai sumpu ni hte Microwave shat shadu sha ai sumpu ni law malawng gaw PP hte galaw da ai. Hpa majaw grai ra sharawng ai kun? Shawng nnan, ndai arung arai gaw -n hkru n kaja ai, manam pyaw ai hte manam pyaw ai baw n re ai majaw, lang na matu grai shim lum ai. Dai hta n-ga, grai kaja ai katsi ai hpe hkam sharang lu ai majaw, Microwave kata de bang nna, malu masha hpe hpa manghkang n nga ai sha katsi shangun mai ai. Plastic nkau mi zawn katsi ai shaloi n hkrat sum na rai nna, n kaja ai arung arai ni hpe mung shapraw kau chye ai. Ya aten hta shi a chemical stability mung grai kaja nga ai. Kalang lang lang ai shaloi, kaga arung arai ni hte n mai byin ai.
Grau ahkyak ai gaw, PP arung arai hpe galaw shapraw ai shaloi, n kaja ai arung arai ni hpe n bang ra ai. Katsi ai shara hta, shinggyim hkum hkrang hpe hkra machyi shangun ai bisphenol A* ngu ai tsi hpe n jahten kau na re. Tsun mayu ai gaw, PP hte galaw ai tableware (sh) packaging ni gaw grau shim lum ai hte grau nna malu masha ni hpe tawn da na matu grau htuk manu ai. Dai majaw, malu masha htinggaw (sh) shat sha ku ni hpe lata ai shaloi, PP material hpe shawng tawn mai ai. Raitim, shim lum lam gaw shawng nnan re.
Hkrang nsam
Food-grade PET material gaw grai tsaw ai transparency nga ai majaw, kata na lusha hpe kalang ta mu lu ai, hkrang hte quality hpe asan sha mu lu ai. Dai majaw, anhte ayan lu ai lu sha ntsin htung ni, biscuit hte candies ni a matu lusha ntsin htung ni zawn re ai malu masha ni hpe madun da ra ai packaging ni hta lang na matu grau nna htuk manu ai. Ndai package law malawng gaw PET hte galaw ai re. Hpa majaw lang ai kun? Hpa majaw nga yang, hpaga la ni gaw shanhte a arai ni a kaja dik ai maga hpe mari ai ni hpe madun dan nna, mari na matu myit lawm shangun mayu ai majaw re. Grau nna, ndai zawn re ai shingnip gaw, n-gun n rawng ai hte san seng ai hku mu lu ai sha n-ga, malu masha hpe madang langai ngai du hkra makawp maga ya ai, n-gun n rawng ai hte n-gun n rawng ai hku n byin hkra makawp maga ya ai, malu masha hpe n hkrat sum ai sha, kaja ai masa hta, lu sha ai ni a lata de du hkra galaw ya lu ai.
Lusha-grade PP gaw n-gun n law ai, n-gun n law ai. Nhtoi hpe n kaja ai hku shalai ya lu tim, jai lang ai lam amyu myu nga ai. Ga shadawn, yogurt box hpe la ga. Dai translucent PP material gaw masha ni hpe yogurt a n-gun ja ai nsam hpe n chye na hkra mu lu shangun ai, dai sha n-ga, dai product a matu mau hpa hkam sha lam hpe mung ngam da ya ai. Supermarket ni hta law law lang mu lu ai tray ni mung nga ai. Shan nnan bang ai tray ni gaw kasi langai mi re. PP material hte galaw ai pallet ni gaw shatter-hkap n-gun n rawng ai hte tatut jai lang mai ai, shanhte a translucent texture gaw san seng ai hte san seng ai zawn rai nga ai. PP arung arai ni hpe lang nna malu masha box hte tray ni hpe galaw ai gaw ra kadawn ai lam ni hpe hkap la lu ai sha n-ga malu masha shim lum lam hpe mung lu la mai ai.
Katsi ai hpe ninghkap lu ai
Katsi ai hpe ninghkap lu ai atsam gaw malu masha-grade PET a madung lam langai rai nga ai. Katsi ai- hpe hkam sharang lu ai raitim, katsi ai hpe n hkam sharang lu ai. Katsi ai 70-80℃du wa ai shaloi, PET shingnip a ntsa gaw nsam galai mat nna, shawng na hkrang hpe sum mat na re. Dai majaw, malu masha-grade PET hpe -katsi ai shara hta n-gun ja ai sterilization (sh) katsi ai shara hta lang na matu n htap htuk ai. Ga shadawn, malu masha galaw shapraw ai lam hta, n-gun ja ai shara hta shinggyin tawn da nna, n-gun n rawng hkra galaw ra ai link nkau mi hta akyu n nga ai. PET packaging hpe hka n-gun ja ai hpe hkam la na matu lang yang, loi loi hte n-gun yawm mat nna, hkra machyi mat ai (sh) n mai lang mat ai pyi byin mat chye ai. Dai majaw, shinggyin la na matu ra ai arung arai ni hpe lata ai shaloi, malu masha hpe shinggyin la lu na matu ra kadawn ai nbung katsi ai lam hpe atsawm sha myit yu na matu ahkyak nga ai, dai gaw malu masha hpe bang na matu ra ai nbung katsi ai lam hpe atsawm sha myit yu ra ai.
Lusha-grade PP gaw grai kaja ai katsi ai hpe hkam sharang lu ai, 110℃hte 120℃lapran na katsi ai hpe hkam sharang lu ai. Bai nna, Microwave kaw hkrak sha katsi mai ai plastic langai sha rai nna, grai akyu rawng ai. Lusha hpe n-hkap la shi yang, n-gun ja ai-katsi ai shara hta sterilization (sh) katsi ai hku galaw ra ai rai yang, PP packaging gaw kaja dik htum re. Anhte lusha sha na matu ayan lang ai malu masha tawn da ai hka htung law law, dai zawn sha, supermarket ni hta dut ai heat-and-eat lunch box ni mung, PP hte galaw da ai. Dai hpe lang nna lusha hpe hkam la nna, Microwave kaw katsi shangun ai gaw, shim lum ai hte shim lum ai. Dai gaw hka lim mat na (sh) n kaja ai arung arai ni hpe shapraw kau na hpe myit tsang ra na n re. Ndai lam gaw shani shagu na sak hkrung lam hta grai shim lum ai.
Chemical hpe ninghkap lu ai atsam
Lusha-grade PET gaw acid hte alkali ni hpe hkam sharang lu ai majaw shani shagu na lusha hta acid hte alkaline makau grup yin hpe hkam sharang lu ai. Raitim, n-gun ja ai oxidizing (sh) organic solvent ni hte hkrum katut yang, dai gaw n mai byin na re. Ga shadawn, bleach hte disinfectant zawn re ai n-gun ja ai oxidizers ni, paint thinner zawn re ai arung arai ni gaw, PET hpe hkra ai hpang, n-gun yawm mat nna, n-gun n rawng mat ai, shing nrai, hkra machyi mat chye ai. Dai majaw, malu masha hpe shinggyin ai shaloi, shinggyin ai arung arai ni a san seng ai lam hte malu masha hpe shim lum hkra galaw na matu, dai arai ni hte tsan gang hkra tawn da ai gaw kaja dik rai nga ai.
Lusha-grade PP gaw grai kaja ai chemical stability hpe jaw ya nna, n-gun ja ai oxidants ni hta lai nna, chemical law malawng hpe n-hkap la ai. Ndai arung arai hpe malu masha hte hpaga lam lahkawng yan hta grai ra sharawng ma ai. Ga shadawn, malu masha bang ai hka htung ni hte Microwave lunch box ni gaw malu masha ni hpe tawn da na matu grai kaja ai majaw, chemical attack kaw na makawp maga ya lu ai. Bai nna, PP arung arai hpe acidity (sh) alkalinity grai n-gun n rawng yang galaw mai ai, hpaga lam hta lang ai tsi mawan nkau mi mung nga ai. Dai gaw, hkum hkrang nsam gram lajang ai arung arai ni hte san seng ai arung arai ni hpe shinggyin ai hta pyi jai lang lu ai, dai kata na chemical components ni hpe shinggyin ai arung arai ni hte n htap htuk hkra pat shingdang ya nna, arung arai ni a quality hpe n galai shai hkra galaw ya ai. Tsun ga nga yang, n-gun ja ai oxidants ni hte n hkrum ai sha nga yang, PP material gaw ngang ngang jum da lu nna, chemical erosion hpe ninghkap lu ai packaging a matu kaja ai lata la ai lam rai nga ai.
Processing galaw ai lam
Lusha-grade PET hpe galaw na matu loi mi yak hkak ai. Dai hpe n-gun n rawng hkra, atsawm sha hkyet kau ra ai. Hkum tsup hkra n hkyet mat yang, galaw ai shaloi, n kaja ai lam ni loi loi hte byin chye ai, dai gaw, n kaja ai lam ni (sh) n kaja ai lam ni byin chye ai. Dai hta n-ga, PET hpe galaw na matu grai yak ai, galaw shapraw ai shaloi lang ra ai arung arai ni hte galaw sa wa na matu ra ai lam ni hpe grau nna hkan sa ra ai. Ndai lam gaw, shi hpe galaw shapraw ai manu gaw kaga plastic arung arai nkau mi hta grau law hkra hkrak byin shangun ai. Dai majaw, PET arung arai ni gaw manu grau hpu ai. Ndai zawn rai tim, lu sha ntsin htung ni hte malu masha tawn da ai sumpu ni zawn re ai shinggyin la ai hta grai lang nga ai, madung gaw shi a bungli kaja ai, asan sha dan dawng ai lam grai law ai, malu masha ni hpe madun dan lu ai atsam, shim lum lam hpe hkam la lu ai majaw re.
Food-grade PP gaw grai kaja ai galaw shapraw ai atsam nga ai rai nna, grai sawng ai galaw shapraw ai hpaji amyu myu, injection molding, extrusion, blow molding zawn re ai ni hpe loi loi hte hkan sa lu ai, dai ni hpe grai kaja hkra galaw lu ai. Hpaga galaw ai aten hta, PP hpe kaga plastic nkau mi zawn, grai sawng ai arung arai ni hte galaw sa wa na matu ra ai lam ni n ra ai sha n-ga, n-gun ja ai hku mung galaw lu ai majaw, galaw shapraw ai manu n law ai. Dai majaw, malu masha-grade PP hpe grau nna shinggyin la ai bungli hta grai ra sharawng ma ai. Ga shadawn, anhte a shani shagu na malu masha bang ai hka htung ni hte yogurt gawm law law hpe PP hte galaw da ai. Manu n law ai, kaja ai hte gat lawk ra kadawn ai lam hpe hkap la lu ai atsam nga ai majaw, malu masha shinggyin ai lam hta shara lu ai gaw mau hpa n rai nga ai.
Jai lang mai ai mabyin masa ni
Lusha-grade PET gaw teng sha nga yang, lusha a hkrang hpe madun dan ra ai raitim, nbung katsi ai hpe n hkam sharang ra ai packaging ni a matu grau htap htuk ai. Transparency grai tsaw ai hte malu masha a hkrang hte nsam hpe asan sha madun dan lu ai. Dai gaw, lu sha ntsin htung ni hte n-gun ja ai malu masha ntsin htung ni zawn re ai packaging ni a matu grai htap htuk ai rai nna, dai hta rawng ai hpe lang ai ni gaw, dai hta rawng ai hpe hkrak mu lu na matu rai nga ai. Raitim, nbung katsi ai shara hta shi a bungli galaw ai lam gaw n kaja ai, shi a ntsa gaw 70-80℃hta n kaja ai hku byin chye ai majaw, katsi ai lu sha ni hte katsi ai malu masha ni hpe shinggyin tawn na matu n htap htuk ai. N-gun ja ai shara hta sterilization (sh) katsi ai lam galaw ra ai rai yang, PET gaw n htap htuk ai.
Food grade PP gaw grai akyu rawng ai arung arai langai rai nna, grau nna chemical attack hpe ninghkap ra ai packaging ni hte hka lim mat ai malu masha ni a matu htuk manu ai. Ga shadawn, anhte lang ai malu masha sumpu, tray, Microwave wan wut ai hka htung law law hpe PP hte galaw da ai. PP gaw grai kaja ai chemical stability nga ai rai nna, n-gun ja ai oxidants hta lai nna, chemical law malawng hte n-hkap la ai majaw, malu masha ni hpe shinggyin la na matu grai shim lum ai. PP gaw n-gun n law ai hpe mung hkam sharang lu ai majaw, kaga arai nkau mi zawn n-gun n rawng ai sha, n-gun n rawng ai malu masha ni hpe dai hta bang mai ai. Katsi mayu ai rai yang, PP hka htung hpe Microwave kata de hkrak bang mai ai majaw, shim lum ai hte lawan ai. Tsun ga nga yang, PP gaw malu masha shinggyin ai lam hta tengman ai "all-rounder" rai nna, ndai mabyin masa ni a matu grau nna htap htuk nga ai.
grup yin hpe makawp maga ai lam
Lusha-grade PET gaw grup yin hpe kaja ai hku galaw ya lu ai raitim, galaw shapraw ai shaloi, n-gun dat (catalysts) hte n-gun dat (antioxidants) zawn re ai n-gun dat nkau mi hpe bang mai ai. Ndai additives ni gaw aten galu-lang ai shaloi htawt sit nna lwi pru wa chye ai majaw malu masha shim lum lam hpe hkra machyi shangun ai. Ga shadawn, PET a polycondensation n-gun jat ai lam hta lang ai n-gun dat ni (antimony trioxide + zawn re ai) hte n-gun dat ai kaw na pru wa ai by-product ni (acetaldehyde zawn re ai) ni yawng gaw n hkru n kaja ai rai nna, htawt sit wa na hkrit tsang hpa ni nga ai. Dai majaw, PET hpe malu masha shinggyin ai arung arai hku lata ai shaloi, malu masha shimlam masat masa ni hpe hkan sa lu na matu, jai lang ai arung arai ni a n-gun hte shanhte a htawt sit ai lam hpe grai sadi maja let hkang zing ra ai.
Food-grade PP gaw grup yin hpe grai kaja hkra galaw ya lu ai, lang ai shaloi n kaja ai nbung n shapraw ya ai, shinggyim hkamja lam hpe mung n law htum hkra machyi shangun ai. Dai gaw grai shim lum ai plastic arai rai nna, malu masha ni hpe shinggyin bang na matu grau nna htuk manu ai. Ga shadawn, anhte lang ai malu masha bang ai hka htung ni hte Microwave shat shadu ai hka htung law law hpe PP hte galaw da ai. Lusha hpe tawn da na matu lang ai shaloi, hka lum ai shara kaw rai tim, katsi ai shara kaw rai tim, n kaja ai arung arai ni hpe shapraw kau na hpe myit tsang ra na n re. Grau nna, PP arung arai ni hpe kabai kau ai hpang lang na matu loi ai rai nna, plastic nkau mi zawn grup yin hpe lit kaba n shabyin ya na re. Dai majaw, PP hpe malu masha shinggyin ai hte shani shagu ra kadawn ai arung arai ni hta grai lang ai majaw, masha shagu mung shim lum ai ngu hkam sha nga ai.
Daw dan lam
Lusha a hkrang hte nsam hpe madun mayu nna, nbung katsi ai shara hpe hkam sharang ra ai rai yang, lusha-grade PET arung arai gaw n htap htuk na re, hpa majaw nga yang PET gaw nbung katsi ai shara hta n kaja ai lam loi ai. Kaga n-gun ja ai shara ni hta grau htuk manu ai arung arai ni hpe lata na matu hpaji jaw da ai. Raitim, PET gaw transparency grai law ai majaw, madun dan na matu grai kaja ai.
Chemical erosion hpe ninghkap nna, hka lim ai malu masha ni hpe aten langai hta sha shinggyin la ra ai rai yang, malu masha-grade PP material gaw kaja ai lata la ai lam rai nga ai. PP gaw chemical stability kaja ai hte n-gun n law ai shara ni hpe mung hkam sharang lu ai. Microwave hpe mung n-gun dat na matu lang mai ai, dai gaw grai akyu rawng ai.
Lusha-grade PET hte PP langai hte langai tinang a arawn alai nga ai: PET gaw n-gun ja ai raitim, katsi ai hpe ninghkap lu ai atsam n law ai; PP gaw katsi ai hpe hkam sharang lu ai atsam nga ai hte chemical stability kaja ai raitim, loi mi n-gun n rawng ai majaw, lata ai shaloi, jai lang na masa hte ra kadawn ai lam ni hpe madung tawn nna dawdan ra ai, dai hku nna, htuk manu dik ai arung arai hpe lata la lu na re.
