Ngwunye igbe sịga na-acha ọcha set nke ejiji (igbe igbe iri ọ bụla, igbe nke ọ bụla nke ngwugwu 7)

Kaadị ọcha bụ ụdị mpempe akwụkwọ siri ike na ibu buru ibu. Ebe ọ bụ na elu anaghị agba agba, a na-akpọkarị ya kaadiboodu ọcha. A na-ekewa kaadiboodu ọcha nke China na ọkwa atọ A, B, C. Ọcha nke ọkwa A abụghị ihe na-erughị 92%; B ọkwa erughị 87%; Ọkwa C erughị 82%.
Ngwa ngwa nke kaadiboodu ọcha bụ kemịkalụ na-acha ọcha 100%.
Kaadị ọcha maka ngwugwu sịga na-achọ isi ike dị elu, nkwụsị nkwụsị, ire ụtọ na ịdị ọcha. Ihe ndị dị n'elu akwụkwọ chọrọ dị larịị, ọ dịghị ọnyá, ntụpọ, ọkpụkpụ na ọkpụkpụ, mgbagha na nrụrụ nke mmepụta. Dị ka ngwugwu sịga nwere kaadiboodu ọcha na-ejikarị na-eji igwe na-ebi akwụkwọ ngwa ngwa gravure na-ebipụta, ya mere ihe nrịbama nke kaadiboodu na-acha ọcha chọrọ dị elu. A na-akpọkwa nkwụsi ike dị ka ike nkwụsị ma ọ bụ ike nkwụsịtụ, nke pụtara oke mgbagwoju anya nke akwụkwọ ahụ nwere ike iguzogide mgbe ọ na-agbaji, gosipụtara na kN / m. Igwe na-ebi akwụkwọ gravure dị elu iji dọkpụrụ akwụkwọ mpịakọta, ibipụta ngwa ngwa na-edobe nnukwu esemokwu, ma ọ bụrụ na ihe na-agbaji akwụkwọ na-emekarị, na-eme ka ọ ghara ịdaba ugboro ugboro, belata arụmọrụ, ma na-abawanye ụba nke akwụkwọ.
Enwere ụdị kaadiboodu ọcha abụọ maka ngwugwu sịga, otu bụ FBB (kaadị ọcha edo edo), otu bụ SBS (kaadị ọcha ọcha), ngwugwu sịga na-eji FBB na SBS bụ kaadiboodu ọcha nwere otu akụkụ, FBB nwere akwa atọ. nke pulp, ihu na ala oyi akwa iji sulfate osisi pulp, isi oyi akwa na-eji chemical n'ibu egweri osisi pulp. Akụkụ ihu (akụkụ a na-ebi akwụkwọ) bụ mkpuchi mkpuchi, nke a na-etinye ya na squeegees abụọ ma ọ bụ atọ, ebe n'akụkụ azụ enweghị mkpuchi mkpuchi. Ebe ọ bụ na a na-eji osisi kemịkalụ na nke a na-egweri n'etiti oyi akwa, pulp ahụ nwere nnukwu mkpụrụ osisi (85%-90%), ọnụ ahịa mmepụta ya dịkwa obere, ya mere ọnụ ahịa kaadiboodu FBB dị obere.
FBB pulp nwere ogologo eriri ogologo na obere obere eriri na eriri eriri, yabụ na ọkpụrụkpụ nke akwụkwọ emechara ka mma, otu gram nke FBB dịkwa oke karịa SBS, nke na-enwekarịkwa akụkụ atọ nke pulp, oyi akwa elu. , isi oyi akwa na ala oyi akwa niile na-eji bleached sulfate osisi pulp. Akụkụ ihu (n'akụkụ a na-ebi akwụkwọ) bụ mkpuchi mkpuchi, nke a na-etinye ugboro abụọ ma ọ bụ ugboro atọ na otu squeegee dị ka FBB, ebe akụkụ azụ enweghị mkpuchi mkpuchi. Ebe ọ bụ na a na-ejikwa akwa sulfate na-acha ọcha mee akwa oyi akwa, ọcha dị elu, ya mere a na-akpọ ya kaadị ọcha ọcha. N'otu oge ahụ, eriri pulp dị ntakịrị ma akwụkwọ ahụ dị ike karị, ya mere SBS dị gịrịgịrị karịa FBB nke otu gram arọ. Dị ka ihe atụ, ọkpụrụkpụ nke 230g/m2 FBB nke Hongta Renheng bụ 320μm, mgbe ọkpụrụkpụ nke 230g/m2 SBS bụ 295μm.