Mhando uye Kushandiswa kwemakemikari emapepa

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

kupuruzira makemikari (akadai sekubatsira kubika, deinking agents, nezvimwewo)

Zviyamuro zvekubikira: zvinoshandiswa kumhanyisa kukurumidza uye goho remakemikari pulping kubika, anowanzo shandiswa kazhinji ane anthraquinone uye quinone derivatives, surfactants uye zvichingodaro.

Deinking agent: Inoshandiswa pakuita deinking mukugadzirisa marara mapepa ekudzokorora uye kudzorerazve, izvo zvinogona kuvandudza kuchena kwepulp uye kubvisa tsvina yakasiyana-siyana yakadai semadonhwe einki, etc. Inonyanya kuumbwa ne surfactant, inobatanidza agent, bleaching agent, detergent, uye anti-reprecipitant.

makemikari emapepa (senge pulp sizing agents, surface saizi agent, etc.):

Pulp saizi agent: saizi mumiriri 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 imwe reactive synthetic neutral sizing resin, petrolegent saizi.

Surface sizing agent: inoshandiswa pakukura kwepepa kuvandudza simba repamusoro pepepa, 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 se antifoam agent, coating anobatsira)

antifoam agent: inoshandiswa mukupuruzira, kugadzira mapepa, kupfekedza 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 nekugadzira zvakanaka, kuvandudza mamiriro ekushanda, kuderedza mari yekugadzira, kuwedzera mabhenefiti ehupfumi uye kugadzira mapepa matsva.