PL99962B1 - METHOD OF OBTAINING STARCH APPARATUS FOR UNDERWEAR - Google Patents

METHOD OF OBTAINING STARCH APPARATUS FOR UNDERWEAR Download PDF

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PL99962B1
PL99962B1 PL19283976A PL19283976A PL99962B1 PL 99962 B1 PL99962 B1 PL 99962B1 PL 19283976 A PL19283976 A PL 19283976A PL 19283976 A PL19283976 A PL 19283976A PL 99962 B1 PL99962 B1 PL 99962B1
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Poland
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parts
weight
starch
boric acid
oxidized
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PL19283976A
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Polish (pl)
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Priority to PL19283976A priority Critical patent/PL99962B1/en
Publication of PL99962B1 publication Critical patent/PL99962B1/en

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Description

Opis patentowy opublikowano: 30.04.19812 99 962 tlenku amonu i 0,1-0,6 czesciami wagowymi siarczynu sodu w przeliczeniu na 100 czesci wagowych skrobi utlenionej. Calosc suszy sie z równoczesnym kielkowaniem na suszarni walcowej w temperaturze 120-150°C, anastepitie rozdrabnia iprzesiewa,w znany sposób. Do utlenionej skrobi dodaje sie 0,002-0,003% rozjasniacza optycznego i 0,03-6,06% ultramaryny w przeliczeniu na jej 100 czesci wagowych. Gotowy produkt przesiewa sie przez sita o wymiarach oczek nie wiekszych niz 0,5 mm.W wyniku stosowania sposobu Wedlug wynalazku otrzymuje sie apreture posiadajaca wiele zalet, z których najwazniejsze to niska lepkosc umozliwiajaca równomierne apreturowanie bielizny, uzyskana na skutek utleniania skrobi ziemni czanej podchlorynem sodu w ilosci 0,6—1% czynnego chloru w stosunku do krochmalu ziemniacza¬ nego oraz dobra rozpuszczalnosc w zimnej wodzie spowodowana poprzez dalsza preparatyke skrobi utlenionej, to znaczy przez zastosowanie dodatków organicznych i nieorganicznych. Apretura ta wykazuje równiez brak zdolnosci do tworzenia zlepów, uzyskana miedzy innymi przez odpowiedni stopien rozdrobnienia, dobra przyczepnosc oraz dobra wymywalnosc z materialu oraz brak tendencji do przyklejania sie do zelazka podczas prasowania. Dobra rozpuszczalnosc i latwosc tfzygotowywania tej apretury ma duze znaczenie w pralniach mechanicznych jak i gospodarstwie domowym.Sposób otrzymywania wedlug wynalazku apretury skrobiowej do bielizny znajduje zastosowanie w prze¬ mysle chemicznym i ziemniaczanym. Przedmiot wynalazku przedstawiony jest w nastepujacym przykladzie wykonania.Przyklad. Do reaktora wsypuje sie 3 tony maczki ziemniaczanej i doprowadza 3,6 m3 wody przy ciaglym mieszaniu. Do tak przygotowanego mleczka dodaje sie z dozatora 701 podchlorynu sodowego na 1 tone maczki przy zawartosci 0,1 kg czynnego chloru w litrze. Reakcje prowadzi s?e do zaniku czynnego chloru, co kontroluje sie za pomoca papierków jodoskrobiowych, w obnizajacym sie pH od 10,5 do 6. Po zakonczeniu reakcji utleniania, mleczko odwadnia sie do zawartosci 38% wody. W tym czasie w zbiorniku przygotowuje sie mieszanine chemikaliów w ten sposób, ze w0,8m3 wody ogrzanej do 50°C rozpuszcza sie kolejno 70 kg boraksu, 28 kg kwasu borowego, 42 kg mocznika, 63 kg polimeru tlenku etylenu, 5,25 kg siarczynu sodu, 30 litrów 25% roztworu amoniaku oraz 0,5 kg ultramaryny i 0,021 kg wybielacza optycznego. Do tak przygotowa¬ nego roztworu dodaje sie 1300 kg wilgotnego krochmalu ultenionego. Otrzymane mleczko o pH 8 suszy sie na suszarce walcowej w temperaturze 130°C. Wysuszony produkt rozdrabnia sie i przesiewa przez sita o oczkach kwadratowych, o boku 0,5 mm. PLThe patent description was published: April 30, 19812 99 962 of ammonium oxide and 0.1-0.6 parts by weight of sodium sulphite, based on 100 parts by weight of oxidized starch. The whole is dried with simultaneous sprouting on a roller dryer at a temperature of 120-150 ° C, the anastepitia is ground and sieved in a known manner. 0.002-0.003% optical brightener and 0.03-6.06% ultramarine based on 100 parts by weight are added to the oxidized starch. The finished product is sifted through sieves with mesh sizes not larger than 0.5 mm. As a result of the method according to the invention, a finish with many advantages is obtained, the most important of which is a low viscosity that allows even finishing of linen, obtained as a result of oxidation of potato starch with sodium hypochlorite. in the amount of 0.6-1% of active chlorine in relation to potato starch, and good cold water solubility caused by the further preparation of oxidized starch, that is, by the use of organic and inorganic additives. This finish also shows no ability to form clumps, obtained, among other things, by a suitable degree of disintegration, good adhesion and good washability from the material, and no tendency to stick to the iron during ironing. Good solubility and ease of preparation of this finish is of great importance in mechanical laundries and households. The method of obtaining starch finish for linen according to the invention is used in the chemical and potato industry. The subject of the invention is illustrated in the following embodiment. 3 tons of potato flour are poured into the reactor and 3.6 m3 of water are introduced with constant stirring. The so-prepared milk is added from the dispenser 701 of sodium hypochlorite per 1 ton of flour with the content of 0.1 kg of active chlorine per liter. The reactions lead to the disappearance of active chlorine, which is monitored with iodine starch papers, in the decreasing pH from 10.5 to 6. After the oxidation reaction is completed, the milk is dehydrated to 38% water. At this time, a mixture of chemicals is prepared in the tank in such a way that 70 kg of borax, 28 kg of boric acid, 42 kg of urea, 63 kg of ethylene oxide polymer, 5.25 kg of sulphite are successively dissolved in 0.8 m3 of water heated to 50 ° C. sodium, 30 liters of 25% ammonia solution and 0.5 kg of ultramarine and 0.021 kg of optical brightener. 1300 kg of moist volatile starch are added to the solution thus prepared. The obtained milk with a pH of 8 is dried in a roller dryer at 130 ° C. The dried product is ground and sieved through sieves with square meshes, side 0.5 mm. PL

Claims (3)

Zastrzezenia patentowe 1. Sposób otrzymywania apretury skrobiowej do bielizny polegajacy na utlenieniu skrobi podchlorynem, skleikowaniu i wysuszeniu w obecnosci kwasu borowego i borkasu, zmieleniu i przesianiu, znamienny tym, ze skrobie utlenia sie podchlorynem o zawartosci 0,6-1% czynnego chlorku w stosunku do uzytego krochmalu ziemniaczanego przy obnizajacym sie pH od 11 do 6, przemywa i odwadnia do 30—40% wody, a nastepnie miesza sie z 3—5 czesciami wagowymi mocznika, 5-8 czesciami wagowymi boraksu, 1—3 czesciami wagowymi kwasu borowego, 4—7 czesciami polimeru tlenku etylenu, 1-4 czesciami wagowymi 25% roztworu wodorotlen¬ ku amonu i 0,1—0,6 czesciami wagowymi siarczynu sodu w przeliczeniu na 100 czesci wagowych skrobi utlenionej, przy czym calosc suszy sie z równoczesnym kleikowaniem na suszarni walcowej w temperaturze 120— 150°C, rozdrabnia i przesiewa w znany sposób.Claims 1. A method of obtaining starch finish for linen consisting in oxidation of starch with hypochlorite, gluing and drying in the presence of boric acid and boric acid, grinding and sieving, characterized in that the starch is oxidized with hypochlorite containing 0.6-1% of active chloride in the ratio to the used potato starch at a decreasing pH from 11 to 6, washed and dehydrated to 30-40% of water, and then mixed with 3-5 parts by weight of urea, 5-8 parts by weight of borax, 1-3 parts by weight of boric acid, 4-7 parts of ethylene oxide polymer, 1-4 parts by weight of a 25% solution of ammonium hydroxide and 0.1-0.6 parts by weight of sodium sulphite per 100 parts by weight of oxidized starch, all of which is dried with simultaneous gelatinization. in a roller dryer at a temperature of 120-150 ° C, comminuted and sieved in a known manner. 2. Sposób wedlug zastrz. 1, znamienny tym, ze do utlenionej skrobi dodaje sie 0,002-0,003% wybielacza optycznego i 0,03-0,06% ultramaryny w przeliczeniu na jej 100 czesci wagowych.2. The method according to claim The process of claim 1, characterized in that 0.002-0.003% optical brightener and 0.03-0.06% ultramarine based on 100 parts by weight are added to the oxidized starch. 3. Sposób wedlug zastrz. 1, znami,enn,y tym, ze gotowy produkt przesiewa sie przez sita o wymiarach oczek nie wiekszych niz 0,5 mm. Prac. Poligraf. UP PRL naklad120+18 Cena 45 zl PL3. The method according to p. 1, with the fact that the finished product is sifted through sieves with mesh sizes not larger than 0.5 mm. Wash. Typographer. UP PRL
PL19283976A 1976-10-04 1976-10-04 METHOD OF OBTAINING STARCH APPARATUS FOR UNDERWEAR PL99962B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19283976A PL99962B1 (en) 1976-10-04 1976-10-04 METHOD OF OBTAINING STARCH APPARATUS FOR UNDERWEAR

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Application Number Priority Date Filing Date Title
PL19283976A PL99962B1 (en) 1976-10-04 1976-10-04 METHOD OF OBTAINING STARCH APPARATUS FOR UNDERWEAR

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PL99962B1 true PL99962B1 (en) 1978-08-31

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