EP0567975A1 - Procédé de teinture rapide de matériaux composites synthétiques en feuille destinés à imiter du cuir naturel - Google Patents
Procédé de teinture rapide de matériaux composites synthétiques en feuille destinés à imiter du cuir naturel Download PDFInfo
- Publication number
- EP0567975A1 EP0567975A1 EP93106752A EP93106752A EP0567975A1 EP 0567975 A1 EP0567975 A1 EP 0567975A1 EP 93106752 A EP93106752 A EP 93106752A EP 93106752 A EP93106752 A EP 93106752A EP 0567975 A1 EP0567975 A1 EP 0567975A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- bath
- dyeing
- reciprocatingly
- fact
- 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.)
- Granted
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/32—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of open-width materials backwards and forwards between beaming rollers during treatment; Jiggers
Definitions
- the present invention relates to a process for rapid dyeing of composite synthetic sheet material from which to produce, via appropriate chemical processing, a product similar to natural leather.
- the present invention applies to a chemical process for processing any known type of synthetic (or "imitation") leather, consisting of sheet material comprising a porous (vesicular) polymer matrix embedded with natural or synthetic fibers, and which provides for transforming said synthetic leather into a product identical in appearance and "feel” to natural leather, and as described in Italian Patents n. 1.178.956 and 1.211.465 filed by the present Applicant.
- the above Italian patents relate to the chemical processing of sheet materials with a vesicular matrix (i.e. having evenly distributed micropores) incorporating or not natural or synthetic reinforcing fibers, for producing imitation leather closely resembling and even indistinguishable to the naked eye from natural leather, by processing the raw material normally used for producing SOFRINA (registered trade mark) of KURARAY CO. LTD.
- the chemical process also includes a dyeing stage, which consists of one or more operations using azoic dyes (e.g. BASACRIL - registered trade mark) and ammonia, and, successively or in a mixture, premetallised dyes or specific metal compounds for the matrix fibers (e.g.
- NYLON registered trade mark fibers
- aniline ISOLAN
- TELON LANACROM
- ACIDOL registered trade marks
- the dyeing stage is performed using both tanning technology, in rotary drums, and textile technology, using JET or FLOW type dyeing machines, the strips of sheet material for processing being formed into bales in the first case, and, in the second, being joined end to end into loops which are fed on to the machines and recirculated.
- the dyeing stage requires continuous, accurate metering of the dye solution components, and a processing time of several hours, thus resulting in relatively high processing cost.
- a continuous check cannot be kept on the quality of the processed material, so that whole lots of material may possibly be ruined in the event of inaccurate dyeing parameters.
- numerous in-process handling operations are required of the sheet material, which, being in strip form, is normally in rolls which must be unrolled for forming the material into bales or loops and subsequently reformed into rolls.
- an immersion process provides for more easily controlling the physical and chemical parameters of the bath (temperature, concentration, pH, etc.) as well as for eliminating any handling of the material for processing, which, being in roll form, may simply be unwound into the bath and subsequently rewound. What is more, at least part of the material being processed is constantly out of contact with the dye solution/emulsion, thus enabling it to be quality checked.
- the material for dyeing which, to achieve the above results, must necessarily comprise a porous matrix (and, preferably, a fiber reinforcement selected from a group consisting of nonwoven fabric, polyamide, polyethylene or polyester fibers embedded in the matrix), is processed chemically in strip form, over its entire section consisting of the porous matrix and reinforcement (if any), with dyeing substances containing appropriate (known) auxiliary additives, by feeding the strip of vesicular material reciprocatingly and at a predetermined speed inside a bath containing a solution and/or emulsion of said dyeing substances and additives, and by maintaining the strip taut.
- a porous matrix and, preferably, a fiber reinforcement selected from a group consisting of nonwoven fabric, polyamide, polyethylene or polyester fibers embedded in the matrix
- dyeing substances containing appropriate (known) auxiliary additives by feeding the strip of vesicular material reciprocatingly and at a predetermined speed inside a bath containing a solution and/or emulsion of said dyeing substances and additives, and
- the synthetic material in strip form is fed reciprocatingly inside the bath by alternately winding and unwinding the strip on and off two opposed rollers having means for maintaining the strip at a predetermined tension and guiding it through a tank located between the rollers and containing the dye bath.
- a strip 1 of known microporous (vesicular) synthetic sheet material in particular made of polyurethane with embedded polyamide fibers free to move inside the porous matrix (e.g. the raw material for producing SOFRINA - registered trade mark), is processed in an apparatus 2 defined by a pressure casing 3 housing a tank 4 and two opposed powered rollers 5, 6 at the opposite longitudinal ends of tank 4.
- Tank 4 contains a dye bath 7 of known composition, and, according to the purely indicative example shown, a powered tensioning cylinder 10.
- Strip 1 is formed into a roll 11, which is mounted on to roller 5, unwound off roller 5 into tank 4 and through bath 7, and rewound on to roller 6 from which, by inverting the rotation direction of rollers 5 and 6, it may subsequently be unwound and fed through tank 4 in the opposite direction, and rewound on to roller 5, so as to feed strip 1 reciprocatingly inside bath 7.
- tensioning cylinder 10 may be moved vertically inside tank 4 and bath 7, so as to adjust as required the tension of strip 1 traveling back and forth through bath 7 in tank 4.
- Apparatus 2 also presents means for controlling the temperature of bath 7, e.g. a heating/cooling coil 15; known sensor means (not shown), such as a thermometer, pH meter and level sensor; and supply means for bath 7, wash solutions, and acid and base pH-correcting solutions, all of known type and therefore not shown for the sake of simplicity.
- operating pressure is above atmospheric, and bath 7 is maintained at a temperature of over 100°C, by virtue of pressure apparatus 3, inside which rollers 5 and 6 and tank 4 are housed, being fluidtight and hence pressurizable; and tensioning cylinder 10 is so positioned by motors 12 as to feed strip 1 reciprocatingly through bath 7 at a tension of no less than 30 Nw/sq.cm of cross section of strip 1.
- Powered rollers 5 and 6 are so operated as to feed strip 1 reciprocatingly through bath 7 at an average linear speed of roughly 20 m/minute and, at any rate, ranging from 8 to 40 m/minute.
- the dyeing stage by immersing and feeding strip 1 reciprocatingly in bath 7, takes from 30 minutes to 4 hours, at the end of which, strip 1 is dyed evenly and stably, and presents an excellent appearance.
- the strips in lots A and C present the same colour and uniform shading as those in lots B and D: the dyeing operation of lots A and C, however, required roughly 6 hours as compared with only 3 hours for lots B and D.
- Example 1 Twelve strips as in Example 1 are divided into two lots E and F of 6 strips each.
- the strips, unrolled and stitched into a loop, are treated on a JET type dyeing machine using the same solutions and operating parameters as lots C and D, except that, following precipitation with chromium sulphate and before being treated with glutaric aldehyde solution, they are treated with 650 liters of an aqueous emulsion of 7% by weight of APRITAN PQ (registered trade mark), a known maleic styrene filler used in tanning, and 2% by weight of BASITAN MN (registered trade mark) and 3% by weight of TANIGAN PAK (registered trade mark), known synthetic-tannin-based retanning agents used in the tanning industry.
- APRITAN PQ registered trade mark
- BASITAN MN registered trade mark
- TANIGAN PAK registered trade mark
- the strips in lot E are then dyed on the JET machine by treating them with 650 liters of an aqueous solution of 3% by weight of LEVADERM (registered trade mark), a known polyurethane dye, and 3% by weight of SELLASET (registered trade mark), a specific known dye for polyamide fibers, for 4 hours at 98°C.
- the strips in lot F are removed from the JET machine, formed into a roll, after first unstitching the loop, and treated with an identical dye solution (3% by weight of LEVADERM and 3% by weight of SELLASET) for 2 h at 98°C and atmospheric pressure using a JEGGER machine and the same parameters as for lots B and D. In this case also, when compared, lots E and F presented the same colour alongside a marked difference in the duration of the dyeing stage.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Coloring (AREA)
- Laminated Bodies (AREA)
- Toys (AREA)
- Moulding By Coating Moulds (AREA)
- Treatment Of Fiber Materials (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO920367A IT1259564B (it) | 1992-04-28 | 1992-04-28 | Procedimento per la tintura rapida di un prodotto in foglio realizzato in un materiale sintetico composito ad imitazione della pelle naturale |
ITTO920367 | 1992-04-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0567975A1 true EP0567975A1 (fr) | 1993-11-03 |
EP0567975B1 EP0567975B1 (fr) | 2000-07-26 |
Family
ID=11410427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93106752A Expired - Lifetime EP0567975B1 (fr) | 1992-04-28 | 1993-04-26 | Procédé de teinture rapide de matériaux composites synthétiques en feuille destinés à imiter du cuir naturel |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0567975B1 (fr) |
JP (1) | JPH06101180A (fr) |
AT (1) | ATE195008T1 (fr) |
CA (1) | CA2095007A1 (fr) |
DE (1) | DE69329085T2 (fr) |
ES (1) | ES2149790T3 (fr) |
IT (1) | IT1259564B (fr) |
PT (1) | PT567975E (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1256649A2 (fr) * | 2001-05-12 | 2002-11-13 | Eduard Küsters Maschinenfabrik GmbH & Co. KG | Procédé pour faire fonctionner un jigger et jigger correspondant |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100781768B1 (ko) * | 2006-04-24 | 2007-12-04 | 백준진 | 발열 직물용 실리콘 코팅 장치 및 코팅 방법 |
DE102013212284A1 (de) | 2012-06-26 | 2014-01-02 | Zschimmer & Schwarz Mohsdorf GmbH & Co. KG | Verfahren zur permanenten Verankerung von Farbstoffen auf der Oberfläche von Wildlederimitaten |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH341467A (fr) * | 1957-08-15 | 1959-10-15 | Kawaguchi Bunshiro | Appareil pour traiter une pièce de matière en bande, notamment une pièce de tissu |
GB1107035A (en) * | 1964-10-02 | 1968-03-20 | Duckworth Associates Ltd C | Improvements in or relating to a method of and apparatus for fluid treating textile materials |
US3525479A (en) * | 1967-09-26 | 1970-08-25 | Benninger Ag Maschf | Automatic rewinding machine |
DE3422966A1 (de) * | 1984-06-22 | 1986-01-02 | Osthoff Senge GmbH & Co KG, 5600 Wuppertal | Umwickeleinrichtung fuer faerbejigger oder dgl. |
GB2206363A (en) * | 1987-06-19 | 1989-01-05 | Lorica Spa | A process for obtaining a synthetic chamois leather similar to natural chamois |
WO1990012913A1 (fr) * | 1989-04-14 | 1990-11-01 | Vald. Henriksen A/S | Teigneuse du type jigger pour la teinture d'une bande de tissu |
-
1992
- 1992-04-28 IT ITTO920367A patent/IT1259564B/it active IP Right Grant
-
1993
- 1993-04-26 EP EP93106752A patent/EP0567975B1/fr not_active Expired - Lifetime
- 1993-04-26 AT AT93106752T patent/ATE195008T1/de not_active IP Right Cessation
- 1993-04-26 ES ES93106752T patent/ES2149790T3/es not_active Expired - Lifetime
- 1993-04-26 DE DE69329085T patent/DE69329085T2/de not_active Expired - Fee Related
- 1993-04-26 PT PT93106752T patent/PT567975E/pt unknown
- 1993-04-27 CA CA002095007A patent/CA2095007A1/fr not_active Abandoned
- 1993-04-28 JP JP5123243A patent/JPH06101180A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH341467A (fr) * | 1957-08-15 | 1959-10-15 | Kawaguchi Bunshiro | Appareil pour traiter une pièce de matière en bande, notamment une pièce de tissu |
GB1107035A (en) * | 1964-10-02 | 1968-03-20 | Duckworth Associates Ltd C | Improvements in or relating to a method of and apparatus for fluid treating textile materials |
US3525479A (en) * | 1967-09-26 | 1970-08-25 | Benninger Ag Maschf | Automatic rewinding machine |
DE3422966A1 (de) * | 1984-06-22 | 1986-01-02 | Osthoff Senge GmbH & Co KG, 5600 Wuppertal | Umwickeleinrichtung fuer faerbejigger oder dgl. |
GB2206363A (en) * | 1987-06-19 | 1989-01-05 | Lorica Spa | A process for obtaining a synthetic chamois leather similar to natural chamois |
WO1990012913A1 (fr) * | 1989-04-14 | 1990-11-01 | Vald. Henriksen A/S | Teigneuse du type jigger pour la teinture d'une bande de tissu |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1256649A2 (fr) * | 2001-05-12 | 2002-11-13 | Eduard Küsters Maschinenfabrik GmbH & Co. KG | Procédé pour faire fonctionner un jigger et jigger correspondant |
EP1256649A3 (fr) * | 2001-05-12 | 2004-11-03 | Eduard Küsters Maschinenfabrik GmbH & Co. KG | Procédé pour faire fonctionner un jigger et jigger correspondant |
Also Published As
Publication number | Publication date |
---|---|
CA2095007A1 (fr) | 1993-10-29 |
JPH06101180A (ja) | 1994-04-12 |
ITTO920367A1 (it) | 1993-10-28 |
EP0567975B1 (fr) | 2000-07-26 |
IT1259564B (it) | 1996-03-20 |
DE69329085D1 (de) | 2000-08-31 |
PT567975E (pt) | 2000-12-29 |
DE69329085T2 (de) | 2001-03-22 |
ITTO920367A0 (it) | 1992-04-28 |
ATE195008T1 (de) | 2000-08-15 |
ES2149790T3 (es) | 2000-11-16 |
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