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Akwụkwọ enweghị osisi

Akwụkwọ enweghị osisi dezie

akwụkwọ enweghị osisi
obere ụdị nkepaper  

Akwụkwọ enweghị osisi bụ akwụkwọ emepụtara naanị site na pulp kemịkalụ kama ịbụ akụkụ nke igwe.[1] A na-ejikarị osisi pulp emepụta kemịkal, mana a naghị ele ya anya dị ka osisi ebe ọ bụ na a na-ewepụ ọtụtụ n'ime lignin ma kewapụ ya na eriri cellulose n'oge nhazi, ebe anụ ahụ na-ejigide ọtụtụ n'ihe ndị dị na osisi ya ma ya mere a ka nwere ike ịkọwa ya dị ka osisi.[2][3] Akwụkwọ enweghị osisi adịghị enwe ike ịcha edo edo dịka akwụkwọ nwere pulp igwe. Akwụkwọ na-enweghị osisi na-enye ọtụtụ uru gburugburu ebe obibi na akụ na ụba, gụnyere mbelata igbutu ọhịa, ibelata oriri ike, na imeziwanye njikwa mkpofu.[4]

A na-ejikarị osisi pulp emepụta kemịkal, mana a naghị ele ya anya dị ka osisi ebe ọ bụ na a na-ewepụ ọtụtụ n'ime lignin ma kewapụ ya na eriri cellulose n'oge nhazi, ebe anụ ahụ na-ejigide ọtụtụ n'ihe ndị dị na osisi ya ma ya mere a ka nwere ike ịkọwa ya dị ka osisi. Akwụkwọ na-enweghị osisi anaghị adị mfe ịcha odo dịka akwụkwọ nwere ntụpọ igwe.

A na-eji ihe dịgasị iche iche emepụta akwụkwọ na-enweghị osisi, gụnyere:

  • Mkpụrụ anụ ahụ: Nke a bụ ụdị akwụkwọ na-enweghị osisi. A na-eme ya site na ntụ osisi nke e ji kemịkal mee iji wepụ lignin.
  • Balsa pulp: Nke a bụ ụdị pulp osisi nke e ji osisi balsa mee. Ọ siri ike ma dị arọ, na-eme ka ọ dị mma maka iji ya mee ihe na envelopu na ngwa ndị ọzọ dị arọ.
  • Coniferous pulp: Nke a bụ ụdị osisi pulp nke e ji osisi coniferous mee, dị ka pine na fir. Ọ siri ike ma na-adịgide adịgide, na-eme ka ọ dị mma maka iji ya mee ihe na akwụkwọ edemede na obibi akwụkwọ.
  • Non-wood pulp: Nke a bụ ụdị pulp nke a na-eme site na ihe ndị na-abụghị osisi, dị ka ogho, hemp, na linin. A na-ejikarị ya eme ihe na akwụkwọ ndị dị elu, dị ka ndị a na-eji maka nka na foto.

Akwụkwọ na-enweghị osisi nwere ọtụtụ uru karịa akwụkwọ nwere pulp. Ọ bụ:

  • Na-eguzogide odo odo: Nke a bụ n'ihi na lignin, nke bụ isi ihe na-akpata odo odo akwụkwọ, ewepụla ya na pulp.
  • Karịa ike: Nke a bụ n'ihi na eriri cellulose dị na akwụkwọ na-enweghị osisi dị ogologo ma bụrụ otu karịa eriri dị na pulp igwe.
  • Na-adịgide adịgide: Nke a bụ n'ihi na akwụkwọ na-enweghị osisi anaghị agbaji ma ọ bụ gbajie.
  • N'ụzọ dị nro: Nke a bụ n'ihi na elu akwụkwọ na-enweghị osisi dị nro karịa elu akwụkwọ nke nwere ntụ.

A na-eji akwụkwọ na-enweghị osisi eme ihe n'ọtụtụ ngwa, gụnyere:

  • Akwụkwọ edemede na obibi akwụkwọ: Akwụkwọ na-enweghị osisi bụ ụdị akwụkwọ a na-ejikarị ede na obibi akwụkwọ. Ọ dị n'ụdị dị iche iche, na-eme ka ọ dị mma maka ọtụtụ ngwa.
  • Envelopu: Akwụkwọ na-enweghị osisi bụ ụdị akwụkwọ a na-ejikarị eme envelopu. Ọ dị n'ụdị dị iche iche na njedebe dị iche iche, na-eme ka ọ dị mma maka oge dị iche iche.
  • Akwụkwọ nka na foto: Akwụkwọ na-enweghị osisi bụ ụdị akwụkwọ a na-ejikarị eme ihe maka nka na foto. Ọ dị n'ụdị dị iche iche, na-eme ka ọ dị mma maka ọrụ dị iche iche.
  • Ngwa ndị ọzọ: A na-ejikwa akwụkwọ na-enweghị osisi mee ihe n'ọtụtụ ngwa ndị ọzọ, dị ka nkwakọ ngwaahịa, akara, na ego.

Mkpa akwụkwọ na-enweghị osisi n'ịkwalite nkwado na ibelata mgbukpọ ọhịa dezie

Akwụkwọ na-abụghị osisi, nke a na-akpọkarị akwụkwọ na-enweghị osisi ma ọ bụ akwụkwọ na-abụghị ọhịa, dị mkpa maka ịkwalite nkwado na ibelata mgbukpọ ọhịa.[5] Akwụkwọ na-enweghị osisi na-enye uru dị ukwuu na gburugburu ebe obibi karịa anụ osisi nkịtị ebe ọ bụ na ọ na-eji eriri na ihe ndị ọzọ. Site n'enyemaka nke ihe ndị dị mkpa, ngalaba a ga-enye nkọwa zuru oke banyere mkpa akwụkwọ na-enweghị osisi dị n'ịkwalite nkwado na igbochi mgbukpọ ọhịa.

Ụdị akwụkwọ ndị na-enweghị osisi dezie

Akwụkwọ ndị na-enweghị osisi na-abịa n'ụdị abụọ: ndị a na-ekpuchighị na ndị a na'ekpuchaghị. A na-ejikarị uncoated eme ihe maka ibipụta na ide, mana a na-ejikwa ya eme ihe na ngwa nkwakọba ihe ụfọdụ, ebe a na-eji mkpuchi eme ihe maka ihe ndị dị ka nkwakọ ngwaahịa na akara.[6]

Uru na uru nke akwụkwọ na-enweghị osisi dezie

  1. Nchedo nke Ọhịa: Otu n'ime uru dị mkpa nke akwụkwọ na-enweghị osisi bụ ikike ya iji belata ọchịchọ maka ntụ osisi sitere na osisi. Nchekwa a nke oké ọhịa na-enyere aka n'ichekwa usoro okike bara uru na ụdị dị iche iche. Mmepụta akwụkwọ na-enweghị osisi na-enye aka nke ukwuu n'ichekwa ọhịa site n'ibelata mgbukpọ ọhịa na ichebe ebe obibi okike.[7]
  2. Ihe siri ike na Warp: Uru ọzọ dị mkpa nke akwụkwọ na-enweghị osisi bụ ohere ya dị ala maka warp ma ọ bụ curl.[8]

Hụkwa dezie

Ihe odide dezie

  1. ↑ He (2010-04-01). "Impact of High-Yield Pulp Substitution on the Brightness Stability of Uncoated Wood-Free Paper". March 2010 9 (3): 15–20. DOI:10.32964/tj9.3.15. ISSN 0734-1415. 
  2. ↑ Print lingo explained: Woodfree paper (en). Warners Midlands Plc (2016-05-10). Archived from the original on 2022-12-10. Retrieved on 2022-12-10.
  3. ↑ Papers (2020-03-12). Know your paper terms: Wood-free paper (en-US). Peters Papers. Retrieved on 2022-12-10.
  4. ↑ Dewan (2013). "Floods in a Megacity". Springer Geography. DOI:10.1007/978-94-007-5875-9. ISSN 2194-315X. 
  5. ↑ (2014) "Finishing". Basics Design: Print and Finish: 62–115. DOI:10.5040/9781350039636.ch-003. 
  6. ↑ Woodfree Paper - Adazing. Adazing. “"There are two main types of woodfree paper: uncoated and coated. Uncoated woodfree paper is typically used for printing and writing. It is also used in some packaging applications. Coated woodfree paper is used for packaging, labels, and other applications where a more durable paper is needed."”
  7. ↑ Marchak, M. P. (1995). Logging the globe. McGill-Queen's Press-MQUP.
  8. ↑ Woodfree Paper - Adazing. Adazing. “"[Woodfree paper] is also less likely to warp or curl."”

Àtụ:Paper

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