ʻIke a me ka hoʻomohala ʻana i ka pepa

ʻO ka pepa i hoʻohana ʻia i kā mākou huipahu palaoa,pahu pizzaa me nā mea ʻē aʻepahu pahu meaʻaihana ʻia e ka ʻenehana pepa kiʻekiʻe loa, e hāʻawi ana i kēlā me kēia malihini me nā huahana maikaʻi loa

I ka wā o ka moʻokūʻauhau Han Komohana (206 BC), ua loaʻa iā Kina ka hana pepa, a i ka makahiki mua o Yuanxing (105) i ka Mōʻī Han Hikina, ua hoʻomaikaʻi ʻo Cai Lun i ka hana pepa.Hoʻohana ʻo ia i ka ʻili, ke poʻo hemp, ka lole, ka ʻupena lawaiʻa a me nā mea waiwai ʻē aʻe e hana ai i ka pepa ma o ke kaʻina hana o ka paʻi ʻana, kuʻi, palai, kālua, a pēlā aku, ʻo ia ke kumu o ka pepa hou.ʻO kēia ʻano pepa, maʻalahi ka loaʻa ʻana o ka mea maka, ʻoi aku ka liʻiliʻi, ʻoi aku ka maikaʻi o ka maikaʻi, a ua hoʻohana nui ʻia.No ka hoʻomanaʻo ʻana i nā hana a Cai Lun, ua kapa ʻia kēia pepa ʻo “Cai Hou pepa”.

ʻO ka pepa ka crystallization o ka ʻike lōʻihi a me ke akamai o ka poʻe hana Kina.ʻO ka pepa kahi huahana fiber e like me ka lau i hoʻohana ʻia no ke kākau ʻana, paʻi ʻana, pena kiʻi a i ʻole hoʻopili.ʻO ka mea maʻamau, hana ʻia ia mai ka wai hoʻokuʻu ʻia o nā pulupulu mea kanu fibers, i hoʻopili ʻia ma ka ʻupena, hoʻomaʻemaʻe mua ʻia, a laila kaomi a maloʻo.ʻO Kina ka ʻāina mua o ka honua i hana i ka pepa.

Ke holomua nei ka ʻenehana o kēia manawa, a ua hoʻohana ʻia ke kaʻina hana pepa hou.

Hoʻohana ʻo Groundwood Pulp i ka ikaika wili mīkini e loaʻa ai ka fiber lāʻau, i ʻike ʻia ʻo ka pulp mechanical, hiki ke hoʻokaʻawale ʻia i ka pulp mechanical maʻamau, pulp mechanical refined, pulp thermomechanical, etc.

Ke hoʻohana nei ka pulp kemikala i nā ʻano hana kemika e hoʻokaʻawale i nā fila mai ka lignin e loaʻa ai nā fila lāʻau, hiki ke hoʻokaʻawale hou ʻia i ka pulp soda, ka pulp sulfite, a me ka pulp sulfate.

Semichemical pulp (Semichemical Pulp) Hoʻohui i nā ʻano hana pulping mechanical a me kemika, hiki ke hoʻokaʻawale ʻia i loko o ka pulp semi-chemical neutral, pulp soda anu, pulp mechanical mechanical, etc.