DE2445715A1 - ADHESIVE WITH INDICATOR COLOR - Google Patents
ADHESIVE WITH INDICATOR COLORInfo
- Publication number
- DE2445715A1 DE2445715A1 DE19742445715 DE2445715A DE2445715A1 DE 2445715 A1 DE2445715 A1 DE 2445715A1 DE 19742445715 DE19742445715 DE 19742445715 DE 2445715 A DE2445715 A DE 2445715A DE 2445715 A1 DE2445715 A1 DE 2445715A1
- Authority
- DE
- Germany
- Prior art keywords
- adhesive
- colored
- parts
- mass
- alkali
- 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
Classifications
-
- 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
- C09J139/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Adhesives based on derivatives of such polymers
- C09J139/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
- C09J139/06—Homopolymers or copolymers of N-vinyl-pyrrolidones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
-
- 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
- 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
- C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
- C09J9/005—Glue sticks
-
- 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
-
- 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
- C08L2666/54—Inorganic substances
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
2U57152U5715
Hannover, den 20.9.1974 pat ht-luHanover, September 20, 1974 pat ht-lu
Klebstoff mit IndikatorfarbstoffAdhesive with indicator dye
Klebstoffe, insbesondere die im Haushalt und von Kindern gebrauchten Klebstoffe, sind üblicherweise farblos. Es ist bekannt, daß es oft schwierig ist zu erkennen, ob eine Fläche, die mit Klebstoff bestrichen werden soll, schon damit abgedeckt ist und wo deren Grenzen liegen. Der Erfindung liegt deshalb die Aufgabe zugrunde, eine mit. Klebstoff bedeckte Fläche als solche leicht erkennbar zu machen.Adhesives, especially those used in households and by children, are usually colorless. It it is known that it is often difficult to tell whether an area to be coated with adhesive is is already covered with it and where its limits are. The invention is therefore based on the object of a with. To make the surface covered by the adhesive easily recognizable as such.
•Insbesondere in der Industrie werden seit geraumer Zeit bereits Kleber verwendet, denen Farbzusätze beigegeben sind. Mit solchen Klebern werden z. B. Schnittflächen von Textilien gekennzeichnet, wobei die Farbe dieses Klebstoffes bei der späteren Verwendung dieser Textilien keine Rolle spielt und deshalb bestehenbleiben kann.• In industry in particular, adhesives to which color additives have been added have been used for some time are. With such adhesives z. B. Marked cut surfaces of textiles, the color of this Adhesive does not play a role in the later use of these textiles and therefore persists can.
Demgegenüber liegt der Erfindung die weitere Aufgabe zugrunde, einen Kleber zu schaffen, der zwar im Augenblick des AufStreichens eine erkennbare Färbung erhält, der diese Färbung aber nach dem Aufstrich alsbald abgibt oder verliert, damit diese sich nicht später störend auf das geklebte Gesamtgebilde auswirkt.In contrast, the invention is based on the further object to provide an adhesive that, although at the moment When it is spread, it acquires a recognizable color, which, however, releases this color as soon as it is spread or loses, so that this does not later have a disruptive effect on the entire bonded structure.
Es ist bekannt, daß gewisse Indikatorstoffe, wie z. B. Phenolphthalein und Thymolphthalein im alkalischen Medium kräftig gefärbt sind. Die Färbungen können unterschiedlich in der Tönung sein. Sie haben eines gemeinsam: Sie verschwinden in dem Maße, in dem die Alkalität ihrer Umgebung verschwindet.It is known that certain indicator substances, such as. B. Phenolphthalein and thymolphthalein in an alkaline medium are brightly colored. The colors can be different in shade. They have one thing in common: They disappear as the alkalinity of their environment disappears.
609815/1076 - 2 -609815/1076 - 2 -
Hiervon ausgehend ist gefunden worden, daß einem Kleber auf bekannter Klebstoffbasis (z. B. Dextrin, Polyvinylpyrolidon) eine gewisse Menge eines Alkali wie z. B. Calziumhydroxid zugegeben wird und außerdem einen Indikatorfarbstoff, nämlich Thymolphthalein, Phenolphthalein oder Xylenolphthalein in alkoholischer Lösung.Proceeding from this, it has been found that an adhesive based on a known adhesive (e.g. dextrin, polyvinylpyrolidone) some amount of an alkali such as B. calcium hydroxide is added and also an indicator dye, namely thymolphthalein, phenolphthalein or xylenolphthalein in alcoholic solution.
Ein solcher Klebstoff wird in der Substanz stark gefärbt sein, z. B. violettrosa oder blau. Nach dem Aufstreichen auf eine papierene Oberfläche wird er sich aber alsbald entfärben, wobei die Einwirkung von Licht und Luft nur eine untergeordnete Rolle spielt. Entscheidend hierfür ist die Alkali-Bindefähigkeit des Papieres, derzufolge eine Neutralisation eintritt, die den pH-Wert dem Neutralpunkt näherbringt. Zufolge dieses Einflusses findet die Entfärbung statt, d. h. die indikatorfarbstoffe kehren in ihren ursprünglich farblosen Zustand zurück.Such an adhesive will be strongly colored in the substance, e.g. B. purple pink or blue. After spreading on a paper surface, however, it will soon discolor, with the effect of light and air only plays a subordinate role. The decisive factor here is the ability of the paper to bind with alkali a neutralization occurs, which brings the pH value closer to the neutral point. As a result of this influence the discoloration takes place, d. H. the indicator dyes return to their original colorless state.
An Hand beigefügter Beispiele sei die Erfindung noch einmal näher erläutert:The invention will be explained in more detail using the enclosed examples:
Einen pastosen Kleber auf Dextrin-Basis erhält man nach folgender Vorschrift:A pasty glue based on dextrin is obtained according to the following instructions:
In 28 Teilen Wasser werden 0,3 Teile Calziumhydroxid aufgeschlämmt. Darin löst man unter Rühren und Erwärmen auf 72 °C - 75 °C 20 Teile Stärkesirup, 14 Teile Urecoll W (Harnstoff-Formaldehyd-Kondens.-Produkt der BASF), 5 Teile Sorbit und 32 Teile Dextrin. Zuletzt wird ein Teil einer lO%igen alkoholischen Thymolphthaleinlösung eingetropft und gleichmäßig verrührt.0.3 part of calcium hydroxide is suspended in 28 parts of water. 20 parts of starch syrup and 14 parts of Urecoll W are dissolved therein with stirring and heating to 72 ° C.-75 ° C. (Urea-formaldehyde condensation product from BASF), 5 parts Sorbitol and 32 parts dextrin. Finally, part of a 10% strength alcoholic thymolphthalein solution is added dropwise and stirred evenly.
609815/1076609815/1076
— it — - it -
Die nachfolgende Vorschrift ermöglicht es, eine starre Klebmasse für einen Klebestift auf Dextrin-Basis zu schaffen.The following rule enables a rigid To create adhesive for a glue stick based on dextrin.
In einer Aufschlämmung von 0,2 Teilen Calziumhydroxid in 35,3 Teilen Wasser werden 25 Teile Stärkesirup, 5 Teile Sorbit und 24 Teile Dextrin aufgelöst bzw. bei 70 C-- 80 C aufgeschlossen. Zu der dickflüssigen Lösung werden 7 Teile Stearinsäure (Flocken) unter Rühren zugegeben, geschmolzen, emulgiert und mit 2,5 Teilen einer 50%igen wäßrigen Natriumhydrosidlösung bei 75 C verseift. Anschließend wird ein Teil einer lo%igen alkoholischen Phenolphthaleinlösung eingetropft und gleichmäßig verrührt.In a 0.2 part calcium hydroxide slurry 25 parts of starch syrup, 5 parts of sorbitol and 24 parts of dextrin are dissolved in 35.3 parts of water 70 C-- 80 C open-minded. 7 parts of stearic acid (flakes) are added to the viscous solution while stirring added, melted, emulsified and treated with 2.5 parts of a 50% strength aqueous sodium hydroside solution at 75.degree saponified. Subsequently, part of a lo% alcoholic Dropped in phenolphthalein solution and stirred evenly.
Polyvinylpyjrolidon ist ein an sich neutraler Kleber, der in Klebestiften Verwendung findet. Für ihn gilt in Verbindung mit der vorliegenden Erfindung etwa folgende Vorschrift:Polyvinylpyrolidone is an inherently neutral adhesive that is used in glue sticks. The following applies to him in connection with the present invention Regulation:
In einem Rührgefäß wurden 40 g Wasser, 14 g 85-%-Sorbitlösung und 7 g Natriumstearat eine Stunde auf 80 - 90 gehalten. Nachdem das Natriumstearat in Lösung gegangen war, wurden 32 g Polyvinylpyrrolidon (Luviskol K 30) und 0,5 g Calziumhydroxid nach und nach unter Rühren eingetragen und solange (ca. 3 Stunden) gerührt, bis eine getrübte, jedoch homogene Klebstoffmasse entstanden war. Zuletzt wurde eine Lösung von 0,05 g Phenolphthalein in 10 ecm Äthylalkohol hinzugegeben, die erkaltete Lösung noch ca. 1/2 Stunde gerührt und bei einer Temperatur von 60 in die dafür vorgesehenen Hülsen gegossen. 40 g of water, 14 g of 85% sorbitol solution and 7 g of sodium stearate were kept at 80-90 for one hour in a stirred vessel. After the sodium had dissolved, 32 g of polyvinyl pyrrolidone (Luviskol K 30) and 0.5 g calcium hydroxide gradually added under stirring and long (about 3 hours) stirred, was formed to a cloudy but homogeneous adhesive mass. Finally, a solution of 0.05 g of phenolphthalein in 10 ecm of ethyl alcohol was added, the cooled solution was stirred for about 1/2 hour and poured into the sleeves provided at a temperature of 60 °.
609815/107 6609815/107 6
Aber auch flüssige Klebmittel lassen sich in gleicher Weise behandeln:But liquid adhesives can also be treated in the same way:
30 Teile Dextrin werden bei 65-70 in 37,7 Teilen entsalztem Wasser unter Rühren aufgeschlossen und nach dem Abkühlen der durchscheinenden Lösung auf 40 noch 25 Teile Stärkesirup und 5 Teile Sorbit darin gelöst.30 parts of dextrin are digested at 65-70 in 37.7 parts of deionized water with stirring and after cooling the translucent solution to 40, 25 parts of starch syrup and 5 parts of sorbitol dissolved in it.
Gesondert wird eine Lösung von 0,2 Teilen Guanidinkarbonat in 2 Teilen Wasser hergestellt, in der unter Rühren 0,05 Teile Phenolphthalein oder Xylenolphthalexn unter Bildung der rotvioletten Guanidinverbindung gelöst werden.A solution of 0.2 parts of guanidine carbonate is separated in 2 parts of water, in which 0.05 parts of phenolphthalein or xylenolphthalexn are added with stirring to be dissolved to form the red-violet guanidine compound.
Nach Zusammengabe der Farbstoff- mit "der Klebstofflösung ist der Kleber fertig.After combining the dye with "the adhesive solution." the glue is ready.
Nicht näher beschrieben sei hier die Möglichkeit, auch von Natur aus bekannte flüssige Kleber, wie z. B. wäßrige Gummiarabicum-Lösung mit den gleichen Indikatorfarbstoffen nach erfolgter Alkalisierung einzufärben und für den vorstehend beschriebenen Zweck zu präparieren.Not described in detail here is the possibility of inherently known liquid adhesives, such as. B. aqueous Color gum arabic solution with the same indicator dyes after alkalization and for the To prepare the purpose described above.
609815/1076609815/1076
Claims (4)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742445715 DE2445715A1 (en) | 1974-09-25 | 1974-09-25 | ADHESIVE WITH INDICATOR COLOR |
CH1087575A CH613720A5 (en) | 1974-09-25 | 1975-08-21 | Adhesive |
IT26520/75A IT1041995B (en) | 1974-09-25 | 1975-08-22 | ADHESIVE WITH INDUCING COLORING SUBSTANCE |
JP50114349A JPS5157732A (en) | 1974-09-25 | 1975-09-23 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742445715 DE2445715A1 (en) | 1974-09-25 | 1974-09-25 | ADHESIVE WITH INDICATOR COLOR |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2445715A1 true DE2445715A1 (en) | 1976-04-08 |
Family
ID=5926660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19742445715 Pending DE2445715A1 (en) | 1974-09-25 | 1974-09-25 | ADHESIVE WITH INDICATOR COLOR |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5157732A (en) |
CH (1) | CH613720A5 (en) |
DE (1) | DE2445715A1 (en) |
IT (1) | IT1041995B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4467079A (en) * | 1981-11-13 | 1984-08-21 | Lingner & Fischer Gmbh | Curing compositions containing redox indicators |
EP0388543A1 (en) * | 1989-03-23 | 1990-09-26 | Conros Corporation | Modified adhesive composition which undergoes color change upon application |
US5425824A (en) * | 1988-05-17 | 1995-06-20 | Alcan International Ltd. | Color-changeable adhesive |
US6139821A (en) * | 1993-05-13 | 2000-10-31 | Ipa, Llc | Materials and methods utilizing a temporary visual indicator |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53147731A (en) * | 1977-05-30 | 1978-12-22 | Dainichi Seika Kogyo Kk | Adhesive capable of discoloration |
JPS6072971A (en) * | 1983-09-30 | 1985-04-25 | Mitsui Constr Co Ltd | Adhesive for pipe |
CN102134460A (en) * | 2011-02-25 | 2011-07-27 | 浙江大学宁波理工学院 | Blue solid glue stick with color being changed after application and preparation method thereof |
-
1974
- 1974-09-25 DE DE19742445715 patent/DE2445715A1/en active Pending
-
1975
- 1975-08-21 CH CH1087575A patent/CH613720A5/en not_active IP Right Cessation
- 1975-08-22 IT IT26520/75A patent/IT1041995B/en active
- 1975-09-23 JP JP50114349A patent/JPS5157732A/ja active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4467079A (en) * | 1981-11-13 | 1984-08-21 | Lingner & Fischer Gmbh | Curing compositions containing redox indicators |
US5425824A (en) * | 1988-05-17 | 1995-06-20 | Alcan International Ltd. | Color-changeable adhesive |
EP0388543A1 (en) * | 1989-03-23 | 1990-09-26 | Conros Corporation | Modified adhesive composition which undergoes color change upon application |
US6139821A (en) * | 1993-05-13 | 2000-10-31 | Ipa, Llc | Materials and methods utilizing a temporary visual indicator |
Also Published As
Publication number | Publication date |
---|---|
JPS5157732A (en) | 1976-05-20 |
IT1041995B (en) | 1980-01-10 |
CH613720A5 (en) | 1979-10-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2158034C3 (en) | Shellac-containing food coloring matter, process for its preparation and use thereof | |
DE69912794T2 (en) | MARKING SYSTEM | |
DE2228430C3 (en) | Recording material | |
EP0374668A2 (en) | Fluorescent marking fluid | |
DE60124826T2 (en) | A reversible thermochromic composition having improved lightfastness and a product containing the same | |
DE1671545B1 (en) | PRINT SENSITIVE COPY PAPER | |
DE1671616B1 (en) | PRESSURE SENSITIVE RECORDING MATERIAL | |
EP0924273B1 (en) | Colour pencil lead | |
DE2445715A1 (en) | ADHESIVE WITH INDICATOR COLOR | |
DE2302228C3 (en) | Process for drying a finely divided, slightly water-soluble solid | |
DE69132661T9 (en) | Use of acid-base indicators to improve the wet coverage of emulsion paints | |
DE2854318C2 (en) | ||
DE3503446C2 (en) | ||
DE2128518B2 (en) | Color developing sheet for pressure sensitive copier papers | |
DE1561748C3 (en) | Recording material | |
DE2635449A1 (en) | PROCEDURE FOR STAINING AND SEALING A BIOLOGICAL SAMPLE AND LIQUID FORMULATION FOR CARRYING OUT THE PROCEDURE | |
DE3731458A1 (en) | MARKING MIXTURE FOR LABELING MINERAL OIL PRODUCTS AND MARKED MINERAL OIL PRODUCTS | |
DE2930033C2 (en) | Process for the production of the back coating of a pressure-sensitive recording material | |
DE1946393A1 (en) | Invisible printing ink | |
DE69012917T2 (en) | Fluoran compound, process for its preparation and heat-sensitive recording materials containing it. | |
CH464415A (en) | Adhesive solution or paint-like mass | |
DE710531C (en) | Process for the manufacture of an agent for the detection of liquid warfare agents | |
DE3732115A1 (en) | Cholesteric liquid-crystal compositions having an inverse angle dependence of the reflection colours | |
DE937907C (en) | Unfired leads or pasty writing materials that stain moist textile fibers | |
DE523910C (en) | Process for maintaining the fine distribution of insoluble or poorly soluble dyes |