. 2014. 4. . 305–308. DOI: 10.14258/jcprm.201404228 676.038.2 © . , . , * . , . ), e-mail: m-gk@mail.ru , 4, , 198095 - . . , . : , , . , - . , , . , - , . . : S cont 0, 264 BL 4 gi BL – ); Scon t – ( ); Lgluc – f 2 L gluc f 2 ( ); gi – FH (1) f ( 2 ( ); f – ( ); FH – 2 ); f – ( ); f – ( ). (1), – , – , , , – , e-mail: m-gk@mail.ru * , , . 306 . , . , . . , , 45–50 . , 3Å , 0,4 µ2. 8 , (1), 100–200 . . - . 25–30% 3 – 600 . 5000 , , - 60–65%. 12 . - , , 80–100 , , . , , , . : – , – 100 7,5 , 20000 40 ; ; – 0,002. , 0,1. , - , . , [1]. , , . , . »; « – : « » [2]. – [3] . . 0,5. , , , 0,7 0,35. , 0,5. 5 . , , . , . , - 307 . - . (Psh) (Posm.) : Scont 0,264 4 Psh. (Pdeff) Posm. 2 f : Pdeff . . (2) 5000 11,2 . , - . (Pline) – ». (hfelt) , – :« - (hsheet) : q felt h felt ; (3) , ( ), (4) 360 Pi0.35 380 q sheet hsheet 515 Pi 0.28 qfelt – ); qsheet – 10 2 ( ( ); Pi – 2 ). : 1 ah gi Pline 10 4 Pi d 1 ah – xi ah ), (5) ( ), ah R 1 1 ho hmin ; 2 R h0, hmin – ( ); R – ( ); xi – . . (1,1 2 ) 2 (0,1 ). - . , . , 7,5 10 15 20 , 85 100 125 142 308 . , . , . , . . , . 1. 2. 3. . . ., . . ., 1989. 506 . . . , 1984. 298 . ., 1973. 480 . 24 14 2013 . 2014 . Drobosjuk V.M., Litvinova L.V., Malinovskaja G.K.* PAPER WEB PRESSING WITH UNGROUND FIBERS State Technological University of Plant Polymers, ul. Ivana Chernykh, 4, Saint Petersburg, 198095 (Russia), e-mail: m-gk@mail.ru For justifying process condition of paper making with unground fibers the mechanism of increasing interfiber contact area owing to intensive pressing of a layer of swollen fibers was considered. The changes in the structure of surface fibrous layers were analyzed theoretically. It was shown that the increase in the area of interfiber interaction was due to changes in laying of wall microelements in interfiber contact. Keywords: paper forming ability, pressing, contact area. References 1. 2. 3. Dzhonson K. Mehanika kontaktnogo vzaimodejstvija. [Contact mechanics]. Moscow, 1989, 506 p. (in Russ.). Nesterov A.E., Lipatov Ju.S. Termodinamika rastvorov i smesej polimerov. [Thermodynamics of polymer solutions and mixtures]. Kiev, 1984, 298 p. (in Russ.). Smirnova N.A. Metody statisticheskoj termodinamiki v fizicheskoj himii. [Methods of statistical thermodynamics in physical chemistry]. Moscow, 1973, 480 p. (in Russ.). Received December 24, 2013 Revised April 14, 2014 * Corresponding author.