Mhando uye Kushandiswa kwemakemikari emapepa

Mapepa emakemikari anoreva zvakasiyana-siyana zvemakemikari anoshandiswa mukugadzira mapepa, nguva yakawanda yevabatsiri.Kusanganisira huwandu hwakawanda hwezvinyorwa:

pulping makemikari (akadai seyekubatsira kubika, deinking agents, nezvimwewo)

Zvekubikira zvekushandisa: zvinoshandiswa kumhanyisa kukurumidza uye goho remakemikari pulping yekubika, inowanzoshandiswa kazhinji ine anthraquinone uye quinone derivatives, surfactants uye zvichingodaro.

Deinking agent: Inoshandiswa kuita deinking mukuita kwemarara mapepa ekudzokorodza uye kupuruzira zvakare, izvo zvinogona kuvandudza kuchena kwe pulp uye kubvisa kusvibiswa kwakasiyana-siyana senge inki dots, etc. Inonyanya kuve ine surfactant, yekubatanidza agent, bleaching agent, detergent, uye anti-reprecipitant.

makemikari emapepa (senge pulp sizing agents, pamusoro saizi mumiriri, nezvimwewo):

Pulp sizing agent: saizi agent yakawedzerwa kune pulp, kuitira kuti iite basa rekukura, kazhinji rosin saponification chingamu, yakasimbisa rosin chingamu, yakapararira rosin chingamu (anionic yakapararira rosin chingamu, cationic yakapararira rosin chingamu), AKD uye ASA uye mamwe anoshanda. synthetic neutral sizing agent, petroleum resin sizing agent uye zvichingodaro.

Surface sizing agent: inoshandiswa pakukura kwepepa kuvandudza kusimba kwepepa, kuderedza hupfu, lint uye zvimwe zviitiko, kunyanya yakagadziridzwa starch, senge oxidized starch, starch acetate, crosslinked starch;yakagadziridzwa cellulose, yakadai secarboxymethyl cellulose;synthetic polymers, senge polyvinyl doro, polyacrylates, styrene maleic anhydride copolymers, wax emulsions uye zvichingodaro;Natural polymer, senge chitosan, gelatin uye zvichingodaro.

mapepa ekugadzira makemikari (akadai seantifoam agent, coating anobatsira)

antifoam agent: inoshandiswa mukupuruzira, kugadzira mapepa, kupeta uye mamwe maitiro ekubvisa furo, iwo makuru emhando dzemarasha sleeve kana emulsified parafini, fatty acid esters, low carbon alcohols, silicones, amides zvichingodaro.

coating ebetsero: lubricant, akadai calcium stearate dispersion;mishonga inochengetedza, yakadai se isothiazolinone, p-chloro-m-toluene;dispersing agents, akadai sodium hexametaphosphate, sodium polyacrylate;viscosity modifiers, senge CMC, alkali soluble uplift ye sodium polyacrylate uye zvichingodaro.

Chinangwa ndechekuvandudza kunaka kwepepa uye kushanda zvakanaka kwekugadzira, kuvandudza mamiriro ekushanda, kuderedza mari yekugadzira, kuwedzera mabhenefiti ehupfumi uye kugadzira mapepa matsva.