DE2115856A1 - Dextrin/starch size viscosity stabilisation - using cyclohexanol or cyclohexanone - Google Patents
Dextrin/starch size viscosity stabilisation - using cyclohexanol or cyclohexanoneInfo
- Publication number
- DE2115856A1 DE2115856A1 DE19712115856 DE2115856A DE2115856A1 DE 2115856 A1 DE2115856 A1 DE 2115856A1 DE 19712115856 DE19712115856 DE 19712115856 DE 2115856 A DE2115856 A DE 2115856A DE 2115856 A1 DE2115856 A1 DE 2115856A1
- Authority
- DE
- Germany
- Prior art keywords
- dextrin
- cyclohexanone
- cyclohexanol
- starch
- starch size
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920001353 Dextrin Polymers 0.000 title claims abstract description 16
- 239000004375 Dextrin Substances 0.000 title claims abstract description 16
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 235000019425 dextrin Nutrition 0.000 title claims abstract description 16
- 229920002472 Starch Polymers 0.000 title claims abstract description 11
- 239000008107 starch Substances 0.000 title claims abstract description 10
- 235000019698 starch Nutrition 0.000 title claims abstract description 10
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 title claims abstract description 8
- 230000006641 stabilisation Effects 0.000 title 1
- 238000009835 boiling Methods 0.000 claims abstract description 5
- 239000003292 glue Substances 0.000 claims description 14
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000654 additive Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 230000008953 bacterial degradation Effects 0.000 abstract description 2
- 230000000717 retained effect Effects 0.000 abstract 1
- 238000007792 addition Methods 0.000 description 6
- 229920002261 Corn starch Polymers 0.000 description 3
- 239000008120 corn starch Substances 0.000 description 3
- 229920001592 potato starch Polymers 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 240000003183 Manihot esculenta Species 0.000 description 1
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 1
- -1 Rice starch Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229940099112 cornstarch Drugs 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229940116317 potato starch Drugs 0.000 description 1
- 229940100486 rice starch Drugs 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229940100445 wheat starch Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09H—PREPARATION OF GLUE OR GELATINE
- C09H5/00—Stabilisation of solutions of glue or gelatine
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/28—Non-macromolecular organic substances
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
Viskositätsstabile Dextrin- bzw. Stärkeleime'1 Die vorliegende Erfindung betrifft vskostätsstabile Dextrin- bzw. StärkeleiMe, bei denen die Retrogradation verhindert bzw. stark vermindert ist. Viscosity-stable dextrin or starch glues'1 The present invention relates to dextrin or starch cells which are stable in terms of cost and which have retrogradation is prevented or greatly reduced.
Es ist bekannt, Deftrinletnen Harnstoffe und ähnliche hydrotope Substanzen zuzusetzen, um aie Viskosität der Dextrinlösung zu stabilisieren. Dies ist Jedoch nur für eine relativ kurze Zeit möglich, denn bald ist trotzdem ein relativ starker Anstieg der Viskosität zu verzeichnen.It is known Deftrinletnen ureas and similar hydrotopic substances add to stabilize the viscosity of the dextrin solution. This is however only possible for a relatively short time, because soon there is still a relatively strong one Increase in viscosity recorded.
Weiterhin war es bekannt, Dextrinleimen nach dem Abkühlen Alkohol, Glycerin oder Zucker zuzusetzen. Diese Zusätze erfolgen zur Verbesserung des Anzugsvermögens, als Weichmacher oder als Feuchthaltemittel der fertigen Leime. Zwar kann durch den Zusatz von Alkohol die Retrogradation etwas vermindert werden, Jedoch reichen die normalerweise angewandten Zusätze nicht aus, um für längere Zeit viskositätsstabile Dextrinleime zu erhalten.Furthermore, it was known to glue dextrin after cooling alcohol, Add glycerine or sugar. These additions are made to improve the tightening power, as a plasticizer or as a humectant for the finished glues. Although the The addition of alcohol will reduce the retrogradation somewhat, but they are sufficient normally used additives are not sufficient to keep the viscosity stable for long periods of time To obtain dextrin glue.
Es wurde nun gefunden, daß man die Retrogradation von Dextrin bzw. Stärkeleimen verhindern bzw. vermindern kann, wenn man den Leimen nach dem Aufkochen 2 - 20, insbesondere 5 - 15 Gew.%, bezogen auf Trockensubstanz, an Cyclohexanon und/oder Cyclohexanol zusetzt.It has now been found that the retrogradation of dextrin or You can prevent or reduce starch glues if you use the glues after boiling 2 - 20, in particular 5 - 15% by weight, based on dry substance, of cyclohexanone and / or adding cyclohexanol.
Die Zusätze sind wirksam bei Dextrin- bzw. Stärkeleim, wie er in bekannter Weise aus Kartoffelstärke, Maisstärke, Reisstärke, Weizenstärke oder Tapiokastärke herstellbar ist.The additives are effective with dextrin or starch glue, as it is known in Way from potato starch, corn starch, Rice starch, wheat starch or tapioca starch can be produced.
Der Abbau der Stärke kann thermisch, hydrolytisch oder enzymatisch erfolgt sein. Technisch besonders wertvolles Dextrin kann durch einen thermisch - hydrolytischen Abbau unter Ausschluß von Sauerstoff hergestellt werden.The degradation of the starch can be thermal, hydrolytic or enzymatic be done. Technically particularly valuable dextrin can be thermally - hydrolytic degradation can be produced in the absence of oxygen.
Die erfindungsgemäß mit einem Zusatz von Cyclohexanol bzw, Cyclohexanon herstellbaren Leime sollen etwa 70 - 40 % an Trockensubstanz enthalten. Außer den erfindungsgemäßen Zusätze können noch weitere, die Verarbeitungseigenschaften der Stärkeleime verbessernde Zusätzc, beist,ielsweise an Glycerin oder Äthanol sowie Mittel zur Verhinderung des bakteriellen Abbaus zugefügt werdende Bei Raumtemperatur sind die Leime mit den erfindungsgemäßen Zusätzen 3 - 6 Monate lang haltbar, ohne daß sich die Verarbeitungseigenschaften wesentlich verändern. Auch bei gelegentlichem Abkühlen bis auf den Gefrierpunkt zeigen die Leime noch ein ausgezeichnetes Viskositätsverhalten.According to the invention with an addition of cyclohexanol or cyclohexanone Glues that can be produced should contain around 70-40% dry matter. Except the Additives according to the invention can also further affect the processing properties of the Additives that improve starch glues include glycerine or ethanol as well Agents to prevent bacterial degradation are added at room temperature the glues with the additives according to the invention can be kept for 3 - 6 months without that the processing properties change significantly. Even with the occasional When cooled down to freezing point, the glues still show excellent viscosity behavior.
Aus diesem Grunde ist es in den meisten Fällen nicht erforderlich, daß die fertigen Leimlösungen in Thermoswagen transportiert werden. Dies bedingt eine erhebliche Senkung der Transportkosten.For this reason, in most cases it is not necessary that the finished glue solutions are transported in thermos trolleys. This requires a significant reduction in transportation costs.
Beispiele: Zu jeweils 400 g Wasser wurden A) 600 g eines mittelkochenden Gelbdextrins aus Kartoffelstärke und B) 600 g eines mittelkochenden Gelbdextrins aus Maisstärke gegeben und die Mischungen unter Rühren auf 90°C erhitzt bis das Dextrin gelöst war. Die Proben wurden dann noch 10 Minuten bei dieser Temperatur belassen. Nach dem Abkühlen auf etwa 70°C wurden jeweils 50 g an Cyclohexanol bzw. Cyclohexanon zugesetzt. Zum Vergleich wurde die gleiche Menge Athanol verwendet, Das Viskositätsverhalten der Leimlösungen wurde bei 0°C und 200C gelagerten Proben verfolgt. Die Viskosität wurde in einem Brookfield-Viskosimeter bei 20 UpII und 200C gemessen. In den nachfolgenden Tabellen A und B sind in den ersten Spalten die Zusätze wiedergegeben. Es folgen die gemessenen Viskositäten (cP) in Abhängigkeit von der Lagerzeit und Lagertemperatur.Examples: For every 400 g of water, A) 600 g of a medium-boiling Yellow dextrins from potato starch and B) 600 g of a medium-boiling yellow dextrin from corn starch and the mixtures heated to 90 ° C with stirring until the Dextrin was dissolved. The samples were then kept at this temperature for 10 minutes left. After cooling to about 70 ° C, 50 g of cyclohexanol and 50 g each were added. Cyclohexanone added. For comparison, the same amount of ethanol was used, The viscosity behavior of the glue solutions was measured at samples stored at 0 ° C and 200 ° C tracked. The viscosity was measured in a Brookfield viscometer at 20 rpm and Measured at 200C. In Tables A and B below are in the first columns the additions reproduced. The measured viscosities (cP) follow as a function on the storage time and storage temperature.
Tabelle A (Dextrin aus Kartoffelstärke) Zusatz Lagerung bei 20°C Lagerung
bei OOC 4 Wochen 8 Wochen 4 Wochen 8 Wochen
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712115856 DE2115856A1 (en) | 1971-04-01 | 1971-04-01 | Dextrin/starch size viscosity stabilisation - using cyclohexanol or cyclohexanone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712115856 DE2115856A1 (en) | 1971-04-01 | 1971-04-01 | Dextrin/starch size viscosity stabilisation - using cyclohexanol or cyclohexanone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2115856A1 true DE2115856A1 (en) | 1972-10-12 |
Family
ID=5803553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712115856 Pending DE2115856A1 (en) | 1971-04-01 | 1971-04-01 | Dextrin/starch size viscosity stabilisation - using cyclohexanol or cyclohexanone |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2115856A1 (en) |
-
1971
- 1971-04-01 DE DE19712115856 patent/DE2115856A1/en active Pending
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