Ngaba iphepha lenziwe ngeselulosi?

iphepha lenziwe kuqalaiselulosiiintsinga, ezithathwe kwizinto zezityalo ezifana nentlaka yeplanga, umqhaphu, okanye ezinye izityalo ezinentsinga. Ezi fayibha ze-cellulose zicutshungulwa kwaye zenziwe zibe ngamashiti amancinci ngoluhlu lwezonyango kunye neekhemikhali. Inkqubo iqala ngokuvuna imithi okanye ezinye izityalo ezinomxholo ophezulu we-cellulose. Emva koko, i-cellulose ikhutshwe ngeendlela ezahlukeneyo ezifana ne-pulping, apho iinkuni okanye izinto zezityalo zichithwa zibe yipulp ngokusebenzisa oomatshini okanye iikhemikhali.

Nje ukuba i-pulp ifunyenwe, iqhubekela phambili ekuqhubeni ukususa ubumdaka obufana ne-lignin kunye ne-hemicellulose, enokuthi yenze buthathaka ubume bephepha kwaye ibangele ukuguquka kombala. I-bleaching ingasetyenziselwa ukwenza i-pulp ibe mhlophe kunye nokuphucula ukukhanya kwayo. Emva kokucocwa, i-pulp ixutywa namanzi ukwenza i-slurry, ethi emva koko isasazwe kwiscreen se-wire mesh ukukhupha amanzi amaninzi kwaye yenze i-mat ebhityileyo yeentsinga. Le mat iyacinezelwa ize yomiswe ukuze yenze amaphepha.

I-Cellulose ibalulekile kwinkqubo yokwenza iphepha ngenxa yeempawu zayo ezizodwa. Inika amandla kunye nokuqina kwephepha ngelixa ikwavumela ukuba ibe bhetyebhetye kwaye ilula. Ukongezelela, iintsinga zeselulosi zinokudityaniswa okuphezulu kwamanzi, nto leyo enceda iphepha ukuba lifunxe i-inki kunye nolunye ulwelo ngaphandle kokuqhekeka.

Ngelixaiselulosiyinxalenye ephambili yephepha, ezinye izongezo zinokufakwa ngexesha lenkqubo yokwenza iphepha ukuze kuphuculwe iipropati ezithile. Ngokomzekelo, iifayili ezifana nodongwe okanye i-calcium carbonate zinokongezwa ukuphucula i-opacity kunye ne-smooth, ngelixa i-agent yokulinganisa njenge-starch okanye iikhemikhali zokwenziwa zingasetyenziselwa ukulawula i-absorbency yephepha kunye nokuphucula ukuchasana kwamanzi kunye ne-inki.