FACTORS WHICH INFLUTNCE ACCURACY OF APPLICATION OF THE FLUID LAYER ON THE POLYMER FILM
DOI:
https://doi.org/10.20535/2305-9001.2015.73.40400Keywords:
regulation of the gap of the extrusion head, applied layer thicknessAbstract
Analysis of factors affecting the accuracy of application of the photoemulsion fluid layer on the polymer film in the production of film and photographic materials by the extrusion method was given. Basic hydrodynamic and technological factors determining the thickness of the applied coating were identified. It has been shown that the coating thickness for the investigated structure of the die head is a function of two variables: the output of pump and velocity of the polymer film. Calculated dependences allowing determining the effect of the emulsion flow rate and motion speed of the polymer support on the thickness of the applied layer were obtained. The reasons for straightness errors forming the extrusion gap of the plate, associated with the process of their manufacturing were identified. There was proposed the constructive regulatory scheme of the molding capillary gap of extrusion apparatus used in the production of film and photographic materials, which provides air-tightness of the head and the ability to control the width of the forming channels. Production tests of extrusion dies showed an improvement in the photoemulsion coating uniformity across the width of the polymer support.References
1. Torner R. V. Osnovnyye protsessy pererabotki polimerov (teoriya i metody rascheta) (The main processes of polymer processing (theory and methods of calculation)). Moscow, Khimiya, 1972, 452 p.
2. Vorontsov Ye. G., Yakhno O. M., Journal of Applied Mechanics and Technical Physics. 1974, no 4, pp. 64-69.
3. Kaminer A. A, Yakhno O. M. Gidromekhanika v inzhenernoy praktike (Gidromihanika in engineering practice). Kiev, Tekhnika, 1987, 175 p.
4. Somov N. N., Levi S. M., Vachagin K. D., Akopov R. SH. O forme strui, vytekayushchey iz kapillyara na naklonnuyu ploskost' ekstrudera polivnoy mashiny (On the shape of the jet flowing out of the capillary on the inclined plane of the extruder irrigation machines). Journal of Scientific and Applied Photography and Cinematography. 1972, T. 15, no 6, pp. 21-23.
5. Tushkanov D. A., Shkadov V. YA. Nelineynyye volny v kapillyarnykh plenkakh na naklonnoy poverkhnosti pri malykh uglakh naklona (Nonlinear waves in capillary films on an inclined surface at small angles of inclination). Tezisy konfer. «Sovremennyye problemy aerogidrodinamiki». Moscow, Izd. Mosk. un-ta., 2003, p. 69.
6. Tazyukov F. KH., Karibulina F. R., Smadi T. Al'. Issledovaniye formy zhidkoy plenki nanosimoy na tverduyu podlozhku (Investigation of the shape of the liquid film applied to a solid substrate). Materialy mezhregional'noy nauchno-praktich. konf. «Innovatsionnyye protsessy v oblasti obrazovaniya, nauki i proizvodstva». Nizhnekamsk. 2004. рp. 159-162.
7. Garifullin F. A., Tazyukov F. KH., Smadi T. Al'., Karibullina F. R, Kutuzov A. G., Vakhitov A. F. Issledovaniye formy zhidkoy plenki nanosimoy na tverduyu podlozhku (Investigation of the shape of the liquid film applied to a solid substrate). Vestnik Kazanskogo tekhnologicheskogo universiteta, 2003, no 1, pp. 357-361.
8. Yakutenok V. A., Ponomareva M. A., Arkhipov V. A. Chislennoye modelirovaniye v ploskoy postanovke rastekaniya kapli (Numerical simulation of a flat statement of spreading droplets). Izvestiya VUZov, Fizika, 2006, T. 49, pp. 172-176.
9. Garifullin F. A., Tazyukov F. KH., Smadi T. Al'., Karibullina F. R., Kutuzov A. G., Vakhitov A. F. Chislennoye modelirovaniye techeniya uprugovyazkoy zhidkosti na vykhode iz kapillyara (Numerical simulation of viscoelastic fluid at the outlet of the capillary). Vestnik Kazanskogo tekhnologicheskogo universiteta, 2003, no 1, pp. 362-367.
10. Tushkanov D. A., Shkadov V. YA. Nelineynyye volny v dvukhsloynykh plenkakh (Nonlinear waves in two-layer films). Vestnik Mosk. un-ta. Ser. 1. Matem. Mekhan., 2004, no 2, pp. 51-57.
11. Sisoyev G. M., Tushkanov D. A., Shkadov V. YA. Prostranstvennoye razvitiye neustoychivykh vozmushcheniy v techeniyakh kapillyarnykh plenok (Spatial development of unstable disturbances in the flow of capillary films). Tezisy konfer. «Sovremennyye problemy aerogidrodinamiki». Moscow. Izd. Mosk. un-ta., 2002, p. 58.
