Lub peev xwm ntawm cov khob ntawv pov tseg
Hauv kev ua lag luam, lub peev xwm ntawm cov khob ntawv pov tseg feem ntau yog nruab nrab ntawm 110 milliliters thiab 350 milliliters. Ntawm lawv, 200ml thiab 250ml daim ntawv khob yog qhov tshwj xeeb, feem ntau vim tias cov peev txheej no tuaj yeem ua tau raws li cov kev xav tau ntawm haus dej kub thiab dej txias.
1. Cov khob ntawv me me (110-150ml): Cov khob ntawv no feem ntau yog siv los muab tshuaj yej lossis kas fes rau saj, haum rau lub sijhawm uas yuav tsum tau haus dej sai.
2. Lub khob muaj peev xwm nruab nrab (200-250ml): Qhov no yog lub khob ntim ntau tshaj plaws thiab haum rau ntau yam dej haus. Txawm hais tias nws yog kas fes, mis nyuj tshuaj yej, kua txiv hmab txiv ntoo, los yog dej qab zib, lub peev xwm no txaus los tuav cov dej haus txheem.
3. Lub khob ntawv muaj peev xwm loj (300-350ml thiab siab dua): Cov khob ntawv muaj peev xwm loj yog feem ntau siv rau lub sijhawm uas xav tau cov dej haus loj dua, xws li cov rooj sib tham ntev lossis kev siv tus kheej uas yuav tsum muaj peev xwm kas fes loj dua.
2, Cov khoom siv los ua cov khob ntawv pov tseg
Cov khob ntawv pov tseg feem ntau yog tsim los ntawm cov tawv nqaij thiab polyethylene (PE) txheej. Nyob rau hauv ib puag ncig tus phooj ywg khob khob, cov ntaub ntawv biodegradable xws li polylactic acid (PLA) tau maj mam pib. Cov ntaub ntawv tshwj xeeb muaj xws li:
1. Pulp: Lub cev tseem ceeb ntawm lub khob ntawv yog ua los ntawm pulp. Pulp feem ntau yog muab los ntawm cov ntoo thiab yog cov khoom siv txuas ntxiv dua tshiab. Lub pulp tau dhau los ua ntau yam txheej txheem xws li pulping, bleaching, thiab ziab kom tsim cov ntawv hauv paus uas tuaj yeem siv los tsim cov khob ntawv.
2. Polyethylene (PE) txheej: Txhawm rau tiv thaiv cov ntawv khob dej, qhov saum npoo ntawm cov tawv nqaij feem ntau yog coated nrog nyias txheej ntawm polyethylene. Cov txheej yas no tuaj yeem tiv thaiv dej kom zoo thiab muab kev tiv thaiv ib puag ncig.
3. Polylactic acid (PLA) txheej: Nrog rau kev paub txog kev tiv thaiv ib puag ncig, PLA txheej tau maj mam dhau los ua lwm txoj hauv kev rau PE txheej. PLA yog bioplastic ua los ntawm cov khoom siv txuas ntxiv dua tshiab xws li cov hmoov nplej pob kws, uas tuaj yeem degraded nyob rau hauv industrial composting tej yam kev mob.