Nibihe bikoresho bya karubone bitagira karubone?

Impapuro za kopi zitagira karuboni zigabanijwe kurupapuro rwo hejuru cyangwa impapuro za CB (Coated BackPaper), urupapuro rwagati cyangwa impapuro za CFB (Coated Front & BackPaper) nurupapuro rwo hasi cyangwa impapuro CF (Urupapuro rwimbere).

Ibice bisanzwe bigize CB hamwe nibisabwa:

Ipitingi ya CB igizwe ahanini na chromogenic agent microcapsules, icyogajuru, ibifata, inyongeramusaruro n'amazi.

1. Microcapsules nikintu cyingenzi cyingenzi cya CB. Ubwiza na dosiye ya microcapsules bifitanye isano rya bugufi niterambere ryamabara yimpapuro za kopi zitagira karubone. Ibirimo bikomeye bya microcapsules muri rusange ni 40% kugeza kuri 50%, bigizwe ahanini namavuta yamabara atagira ibara, ibikoresho byurukuta hamwe na Emulsifier. Ubwiza bwa microcapsules bugira ingaruka cyane cyane kubikorwa byo gutanga amabara, kwihuta kwumucyo, no kwanduzaimpapuro za kopi.

2. Gukoresha icyogajuru mu mwenda wa CB ni ukurinda guturika kwa microcapsules hakiri kare bitewe nimbaraga zo hanze mugihe cyo gutunganya no gutwikira. Ingano y'ingano ni umwanya ukoreshwa cyane muri CB. Ibyingenzi byingenzi byerekana icyerekezo ni ubunini bwubunini. Mubisanzwe birasabwa ko icyogajuru gifite ubunini buke buri hagati ya 15-25 mm kigomba kuba gifite 60-80%, kandi ingano yingingo ntigomba kurenza mm 40. Ingano ya spacer muri rusange ni 30% kugeza kuri 50% yubunini bwa microcapsules (igipimo cyumye). Ninini ingano ya microcapsules cyangwa intege nke za microcapsules, niko hakenerwa umwanya munini.

3. Muri rusange hari ubwoko bubiri bwamavuta akoreshwa mumyenda ya CB, imwe ni carboxylated styrene-butadiene latex indi ihindurwa na krahisi. Hariho kandi nababikora bake bakoresha inzoga za polyvinyl (PVA) hamwe na krahisi yahinduwe. Muri byo, ingano ya karubasi ya styrene-butadiene latex muri rusange ni 3% kugeza 4% (ku irangi, igipimo cyumye), kandi ingano ya krahisi yahinduwe ni 10% kugeza 12% (kubirangi, igipimo cyumye).

4. Inyongeramusaruro zikoreshwa mu mwenda wa CB zirimo gutatanya, sodium carboxymethylcellulose (CMC) hamwe nuburinda. Ikwirakwiza ni sodium polyacrylate, urugero muri rusange ni 0.2% kugeza 0.3% (kubirangi, igipimo cyumye), naho urugero rwa sodium carboxymethylcellulose (CMC) muri rusange ni 0.5% kugeza 1.5% (Kubitwikiriye no kugereranya byumye), birashobora kuba byahinduwe ukurikije ibisabwa bya viscosity bisabwa. Ingano yo kubika ibintu ni 0.5% (kuri krahisi, igipimo cyumye).

Ibice bisanzwe bigize CF hamwe nibisabwa:

Ipitingi ya CF igizwe ahanini na pigment, abategura amabara, ibifatika, inyongeramusaruro n'amazi.

1. Intego yo gukoresha ibara ryibara kuriimpapuro za kopi ni ukuzuza no gupfukirana ubuso butaringaniye bwimpapuro zifatizo, kunoza umweru nubusembwa bwimpapuro, kunoza ubwiza nuburabyo bwimpapuro, no gutuma ubuso bwimpapuro bugira wino nziza kandi nziza Absorbency, amaherezo ukabona ibyiza Ingaruka yo gucapa. Ibara nyamukuru rikoreshwa muri CF ni kaolin na karubone ya calcium.

2. Iterambere ryamabara akoreshwa muri CF yambara cyane cyane resin ya fenolike, kandi salincile nkeya ya zinc ikoreshwa hamwe nayo. Intego nyamukuru yo gukoresha zinc salicylate nukuzamura umuvuduko witerambere ryamabara yimpapuro zidafite karubone, cyane cyane kubushyuhe buke. . Ingano yiterambere ryamabara muri rusange igera kuri 11% kugeza kuri 13% y irangi ryose (igipimo cyumye), mugihe igipimo cya resin fenolike na zinc salicylate muri rusange ari 10: 1 (igipimo cyumye), kongeramo salicylate ya zinc Umubare ntugomba. kuba byinshi, bitabaye ibyo bizongera umwanda wimpapuro.

3. Muri rusange hari ubwoko bubiri bwamavuta akoreshwa muburyo bwa CF, bumwe ni carboxylated styrene-butadiene latex naho ubundi bwahinduwe na krahisi. Muri byo, ingano ya carboxylated styrene-butadiene latex muri rusange ni 4% kugeza 5% (kubirangi, igipimo cyumye), kandi ingano ya krahisi yahinduwe ni 12% kugeza 14% (kubirangi, igipimo cyumye).

4. Inyongeramusaruro zikoreshwa mumyenda ya CF zirimo dispersants, sodium carboxymethyl selulose, inhibitor ifuro, amavuta, imiti igabanya ubukana na soda ya caustic. Mubyongeyeho, mugihe utanga impapuro zamabara, pigment yongewe kumarangi irimo ifu yumutuku, ifu yumuhondo, ubururu bwa emaragido nicyatsi kibisi, hamwe namabara ahuye yaimpapuro za kopibyakozwe ni umutuku, umuhondo, ubururu n'icyatsi.