PL50996B1 - - Google Patents
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- Publication number
- PL50996B1 PL50996B1 PL104374A PL10437464A PL50996B1 PL 50996 B1 PL50996 B1 PL 50996B1 PL 104374 A PL104374 A PL 104374A PL 10437464 A PL10437464 A PL 10437464A PL 50996 B1 PL50996 B1 PL 50996B1
- Authority
- PL
- Poland
- Prior art keywords
- starch
- producing
- modified starch
- acc
- oxidized
- Prior art date
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- 229920002472 Starch Polymers 0.000 claims description 11
- 235000019698 starch Nutrition 0.000 claims description 11
- 239000008107 starch Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 229920000881 Modified starch Polymers 0.000 claims description 5
- 239000004368 Modified starch Substances 0.000 claims description 5
- 235000019426 modified starch Nutrition 0.000 claims description 5
- 229910021538 borax Inorganic materials 0.000 claims description 3
- 239000004328 sodium tetraborate Substances 0.000 claims description 3
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 3
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 235000013808 oxidized starch Nutrition 0.000 claims 2
- 239000001254 oxidized starch Substances 0.000 claims 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 1
- 239000007900 aqueous suspension Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 239000002270 dispersing agent Substances 0.000 claims 1
- 230000000704 physical effect Effects 0.000 claims 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
Opublikowano: 8.IY.1966 50996 KI. 89k, 2 MKP C 13 1 ^/^y itfKf)UOTEKA] u««* Wspóltwórcy wynalazku: mgr inz. Boguslaw Nowicki, mgr Leonard Mezynski, mgr Michal Grzeskowiak Wlasciciel patentu: Zjednoczenie Przemyslu Ziemniaczanego, Poznan (Polska) Sposób otrzymywania modyfikowanej skrobi Stosowanie krochmalu przy wyrobie papieru jest znane. Na ogól stosuje sie do tego celu krochmale poddane uprzednio obróbkom chemicznym i termicz¬ nym. Dodatek preparatu krochmalowego do masy papierniczej poprawia wlasciwosci fizyko-chemiczne papieru: zwieksza jego wytrzymalosc mechaniczna, odpornosc na zginanie, na wchlanianie i rozlewanie sie atramentu itp.Okazalo sie, ze mozna poprawic wlasnosci kroch¬ malu preparowanego sluzacego jako dodatek do mas papierniczych, jezeli krochmal ziemniaczany utleniony lub nieutleniony zadaje sie chemikaliami np. wodorotlenkami i weglanami metali alkalicznych lub amonu, oraz ewentualnie z dodatkiem boraksu jako srodka redyspergujacego i nastepnie ogrzewa sie mase w mieszalniku do calkowitego skielkowa¬ nia skrobi, chlodzi sie celem spowodowania ponow¬ nego przejscia czesci skrobi w stan nierozpuszczal¬ ny, po czym poddaje sie mase wysuszeniu na su¬ szarce walcowej.Operacja czesciowego przejscia skrobi w stan nie¬ rozpuszczalny posiada istotne znaczenie i pominie¬ cie tej fazy daje krochmal o znacznie gorszych wlasciwosciach.Przyklad: Na 100 czesci krachmalu ziemniacza¬ nego o wilgotnosci 20% dodaje sie 70 czesci wody, 4 czesci weglanu sodu, 2,3 czesci kwasnego weglanu sodu i 0,2 czesci boraksu. Ogrzewa sie do 70 °C stale mieszajac, chlodzi sie do temperatury 30 °C 20 25 i nastepnie suszy sie na suszarce walcowej, rozdrab¬ nia sie i miele.Otrzymany preparat wedlug wynalazku moze byc stosowany jeszcze do innych celów tam, gdzie sto¬ suje sie krochmale peczniejace. io i. 15 PLPublished: 8.IY.1966 50996 IC. 89k, 2 MKP C 13 1 ^ / ^ y itfKf) UOTEKA] u «« * Inventors: Boguslaw Nowicki, M.Sc., Leonard Mezynski, M.Sc., Michal Grzeskowiak, M.Sc. Patent owner: Unia Przemyslu Ziemniaczanego, Poznan (Poland) Method of obtaining modified starch The use of starch in the manufacture of paper is known. In general, chemical and thermally treated starches are used for this purpose. The addition of a starch preparation to the pulp improves the physical and chemical properties of the paper: it increases its mechanical strength, bending resistance, ink absorption and spilling, etc. It turned out that it was possible to improve the properties of precooked starch used as an additive to paper pulp, if Oxidized or unoxidized potato is treated with chemicals, e.g. hydroxides and carbonates of alkali metals or ammonium, and possibly with the addition of borax as a redispersant, and then the mass is heated in a mixer until the starch is completely germinated, cooled to cause some of the starch to pass back into the insoluble state, and then the mass is dried in a roller dryer. The operation of partial transformation of the starch into an insoluble state is important and omitting this phase gives starch with much worse properties. one with a moisture of 20% add It takes 70 parts of water, 4 parts of sodium carbonate, 2.3 parts of acidic sodium carbonate and 0.2 parts of borax. It is heated to 70 ° C with constant stirring, cooled to 30 ° C 20 25 and then dried on a roller dryer, crushed and ground. The resulting preparation according to the invention can be used for other purposes, where it is used. swelling starch. io i. 15 PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL50996B1 true PL50996B1 (en) | 1966-02-25 |
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