Hana ʻia ka pepa i ka cellulose?

hana nui ʻia ka pepa maikelulosenā olonā, i loaʻa mai nā mea kanu e like me ka pulp lāʻau, ka pulupulu, a i ʻole nā ​​​​mea kanu fibrous ʻē aʻe. Hana ʻia kēia mau olonā cellulose a hana ʻia i mau pepa lahilahi ma o kahi moʻo o nā hana mechanical a me nā kemika. Hoʻomaka ke kaʻina hana me ka ʻohi ʻana i nā lāʻau a i ʻole nā ​​​​mea kanu ʻē aʻe me ka nui o ka cellulose. A laila, unuhi ʻia ka cellulose ma o nā ʻano hana like ʻole e like me ka pulping, kahi e wāwahi ʻia ai ka lāʻau a mea kanu paha i pulp ma o nā ʻano mechanical a kemika paha.

Ke loaʻa ka pulp, hana hou ʻia ia e wehe i nā mea haumia e like me ka lignin a me ka hemicellulose, hiki ke hoʻonāwaliwali i ke ʻano o ka pepa a hoʻoulu i ka discoloration. Hiki ke hoʻohana ʻia ka bleaching e hoʻokeʻokeʻo i ka pulp a hoʻomaikaʻi i kona ʻōlinolino. Ma hope o ka hoʻomaʻemaʻe ʻana, hui ʻia ka pulp me ka wai e hana i kahi slurry, a laila hohola ʻia ma luna o kahi pale uea e hoʻokahe i ka wai keu a hana i kahi moena lahilahi o nā olonā. A laila kaomi ʻia kēia moena a hoʻomaloʻo ʻia e hana i nā ʻāpana pepa.

He mea koʻikoʻi ka Cellulose i ke kaʻina hana pepa ma muli o kona mau waiwai kūikawā. Hāʻawi ia i ka ikaika a me ke kūpaʻa i ka pepa me ka ʻae ʻana iā ia e palupalu a māmā. Eia kekahi, he kiʻekiʻe ka makemake o nā olonā cellulose i ka wai, kahi e kōkua ai i ka pepa e omo i ka ʻīnika a me nā wai ʻē aʻe me ka ʻole o ka hemo ʻana.

ʻOiaikeluloseʻoiai ʻo ia ka ʻāpana nui o ka pepa, hiki ke hoʻokomo ʻia nā mea hoʻohui ʻē aʻe i ka wā o ke kaʻina hana pepa e hoʻonui i nā waiwai kikoʻī. No ka laʻana, hiki ke hoʻohui ʻia nā mea hoʻopihapiha e like me ka lepo a i ʻole ka calcium carbonate e hoʻomaikaʻi i ka opacity a me ka laumania, ʻoiai hiki ke hoʻopili ʻia nā mea hana nui e like me ka starch a i ʻole nā ​​​​kemika synthetic e kāohi i ka absorbency o ka pepa a hoʻomaikaʻi i kona kūpaʻa ʻana i ka wai a me ka ʻīnika.