Codsiga saliidda dahaarka

Codsiga saliidaha dahaarka warqaddu waxay dib ugu noqotaa bilawga qarnigan. Waqtigaas, xabagta loogu talagalay dahaadhka midabaynta warqaddu waxay u badnaayeen xabagta xayawaanka ama casein, iyo nuxurka adag ee dahaarka ayaa ahaa mid aad u hooseeya. Inkasta oo koolladani ay leeyihiin dhejisyo wanaagsan iyo waxqabad wanaagsan oo biyo-qabsi ah, filimka ay sameeyeen iyaga waa mid aad u jilicsan, sidaas darteed waxaa lagama maarmaan ah in lagu daro wax lagu daro oo hagaajin kara isku-laabashada iyo foorarsiga caabbinta waraaqaha iyo guddiga. Waxyaalaha lagu daro waxay sidoo kale wanaajiyaan dareeraha iyo sinnaanta dahaarka qoyan. Waxyaabaha lagu daro waxay noqotay saliidda waraaqaha.

Shaqada dufanka dahaarka

Shaqada saliidaha ayaa ku kala duwan noocyada waraaqaha kala duwan iyo kala duwanaanshaha caadooyinka wax soo saarka ee waraaqaha waraaqaha. Mararka qaarkood dareeraha dahaarka iyo qaar ka mid ah sifooyinka waraaqaha la daboolay (sida dhalaalka, jilicsanaanta, nuugista saliidda, xoogga dusha, iwm) ayaa loo isticmaalaa si loo qiimeeyo waxqabadka saliidda. Qaybaha qaar ee saliidaha ayaa leh sifooyin shaqo oo gaar ah, sida "sifada hagaajinta viscosity", "caabbinta qallalan ee la hagaajiyey", "adhesion qoyan oo la hagaajiyey", "glass qoyan oo la hagaajiyey", "khalad khad iyo impermeability", "caag", "iska caabin laalaab" iyo "gloss la hagaajiyey", iwm.

Saliidda ugu habboon waa inay muujisaa sifooyinka soo socda

(1) Saliid rinjiga oo hagaajiso sifahiisa socodka;

(2) Hubi dahaarka jilicsan;

(3) Hagaajinta dhalaalka alaabta dahaarka leh;

(4) Hagaajinta daabacaadda warqadda;

(5) Iska yaree dildilaaca iyo diirka dahaarka marka warqaddu laalaado;

(6) Iska yaree ama ka saar budada super calender.