EP3802943A1 - Procede de marquage d'un textile mettant en oeuvre une encre thermoeffacable - Google Patents
Procede de marquage d'un textile mettant en oeuvre une encre thermoeffacableInfo
- Publication number
- EP3802943A1 EP3802943A1 EP19728107.4A EP19728107A EP3802943A1 EP 3802943 A1 EP3802943 A1 EP 3802943A1 EP 19728107 A EP19728107 A EP 19728107A EP 3802943 A1 EP3802943 A1 EP 3802943A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- textile
- temperature
- mark
- marking
- subjected
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H1/00—Marking textile materials; Marking in combination with metering or inspecting
- D06H1/02—Marking by printing or analogous processes
Definitions
- the present invention relates to a method of marking a coated textile, the marking disappearing when the textile is subjected to a temperature greater than or equal to a predetermined temperature.
- the present invention relates to a marking method in which the mark is visible when it is applied to a textile coated at an ambient temperature, the mark becoming invisible if the textile is exposed to a higher temperature.
- Coated textiles are used in a large number of fields of application among which can be mentioned awnings, bamums, truck tarpaulins ...
- the coating layer like any material, has a melting point or softening point. This melting point depends on the constitution of the coating layer.
- This feature is problematic when the fabric is subjected to a temperature greater than or equal to the melting temperature of the coating layer in an uncontrolled manner. Indeed, the coating layer softens, even melts and spreads heterogeneously. Thus, when the fabric is again at a temperature below the melting temperature of the coating layer, the coating layer is no longer uniform and the properties of the textile are altered. For example, the seal may be lost if portions of the textile are no longer coated.
- This feature is also problematic, for example, in the case where the coated textile is wound on itself for storage or transport. Indeed, if the coiled textile is subjected to a temperature greater than or equal to the melting temperature of the coating layer, then the textile is welded to places not desired and it can no longer be unrolled, at least without damaging the textile. It would be advantageous to have a simple and reliable system to know if a textile was subjected to too high a temperature to know the reasons that could degrade the integrity of said textile.
- this characteristic has a certain advantage when it comes to assembling several textile strips together.
- the coating layer is brought to a temperature greater than or equal to its melting temperature at the assembly areas.
- the coating layer melts and the two textiles are welded once the coating layer solidifies. This makes it possible to obtain a continuous coating layer which ensures, among other things, a good seal on the entire textile product thus produced.
- the marker When it is desired that the marker is no longer visible after assembly, it is necessary to position the second textile so as to cover the mark. The precise positioning of the two tissues is delicate, since the mark is no longer visible.
- the operator can leave the visible mark if the aesthetics of the textile is not binding.
- the Applicant has developed a method for marking a coated textile in which the marking is erased when it is subjected to a predetermined temperature.
- the invention relates to a method of marking a coated textile, characterized in that the marking is performed by applying an absorbent ink and / or reflective at least one wavelength in the visible range during its application on said textile at a temperature within a predetermined range of use, said ink not absorbing or reflecting wavelength in the visible range if said textile is subjected, at least at said marking, to a higher temperature or equal to a disappearing temperature, said ink absorbing and / or reflecting again at least one wavelength in the visible range if the textile is then subjected, at least at the level of said marking, to a temperature below a reappearance temperature said reappearing temperature being lower than the minimum temperature of the predetermined range of use.
- coated textile may be marked by the marking method according to the invention.
- the textile is coated with a coating layer based on polyvinyl chloride (PVC of English polyvinyl chloride).
- the marking is performed by applying an ink to said coated textile.
- the thermo-erasable inks sold by the company PILOT may be used, in particular mention may be made of the ink described in patent EP 2 468 828.
- the step of applying said ink is carried out at a temperature included in FIG. a predetermined range of use.
- the predetermined range of use ranges from 5 ° C to 70 ° C.
- the predetermined range of use corresponds to the usual working temperatures of those skilled in the art.
- a preferred preferred range of use is from 15 ° C to 40 ° C, and an even more preferred range is from 20 ° C to 30 ° C.
- the application step can be performed by any known means.
- the ink is applied by means of a pen, a tampon or an inking roller or the like.
- the ink absorbs and / or reflects at least one wavelength in the visible range when it is applied at a temperature within said predetermined range of use.
- the ink may be opaque or transparent but it must be visible to the naked eye when it is applied to said coated textile.
- a mark is thus visible.
- the said mark remains visible as long as the textile coated, at least, the part of the textile marked, is not subjected to a temperature greater than or equal to a temperature of disappearance.
- the disappearing temperature corresponds to the temperature at which said ink disappears.
- said ink when the ink is subjected to a temperature greater than or equal to the disappearing temperature, said ink does not absorb or reflect wavelength in the visible range. In other words, the ink becomes transparent and colorless.
- said mark becomes invisible to the naked eye when the textile is heated to a temperature greater than or equal to the disappearing temperature.
- the disappearing temperature advantageously corresponds to the melting temperature of the coating layer of said coated textile so that the mark is no longer visible to the naked eye when the textile has been subjected to a temperature greater than or equal to melting temperature of the coating layer.
- the reappearance temperature is lower than the temperature corresponding to the low limit of the predetermined range of use. Indeed, it is preferable that the mark does not reappear under the normal conditions of use to obtain the expected result. If the mark was visible after exceeding the disappearing temperature and returning to a temperature within the predetermined range of use, then no could not know if the disappearing temperature was reached at a given time or not.
- the mark does not reappear at the disappearing temperature when the temperature decreases.
- the disappearing temperature is higher than the reappearance temperature and the re-emergence temperature is lower than the temperature corresponding to the low limit of the predetermined range of use.
- the ink has the same optical properties before disappearance and after reappearance, it may be advantageous in some applications, that the ink absorbs and or reflects at least one wavelength in the different visible after reappearance. In other words, it is advantageous that the optical properties of the ink are different if the ink has disappeared and reappeared only if the ink has not disappeared. This is advantageous because it is then possible to detect whether the textile has been subjected to a temperature greater than or equal to the disappearing temperature and then to a temperature less than or equal to the re-appearance temperature.
- the mark on the textile after re-appearance is of a different color and / or opacity of the mark initially affixed to the textile.
- the invention also relates to a textile obtained from the process described above, said textile having a mark.
- the invention also relates to a textile marked with a thermo-erasable ink.
- the mark can come in many forms.
- the mark can be a one-dimensional pattern, ie composed of lines or curves, a segment, a line, a curve, a letter, a word or a sentence, a drawing or a two-dimensional pattern, or a QR code encoding information related to the textile concerned.
- the mark In the case where the mark is a drawing, it may be a logo of a company.
- the mark In the case where the mark is a letter, a word or a phrase, it may be a trademark or a warning.
- the invention also relates to the use of the textile described above, for detecting whether the textile has been subjected, in particular during its transport, to a temperature greater than or equal to the disappearing temperature.
- the mark can be positioned anywhere in the textile.
- said mark is positioned on a selvedge of said textile. Positioning said mark on a selvedge makes it possible to quickly and efficiently visualize whether the textile has been subjected to a temperature greater than or equal to the disappearing temperature. Indeed, it is preferable that the user can identify with certainty and quickly the location of the mark to visualize whether said mark has disappeared or not.
- the mark may contain information on a maximum temperature to which the textile has been submitted, the date of manufacture to the lot number or the identity of the carrier and the dates of transport of the textile.
- the mark may be a QR code or a drawing, said drawing may represent a gauge.
- the QR code can refer to a website presenting information.
- the QR code can design several QR codes with different inks so that each one fades independently according to the temperature reached.
- the mark is an outline defining an area intended to be covered by at least one other textile.
- This embodiment facilitates the work of making the operators. As indicated above, to date, so that the mark is no longer visible after assembly, the operators must superimpose the mark and the fabric which causes uncertainty as to the correct positioning of the two textiles with respect to the other or erase the mark after assembly, which is a complicated and delicate task. In this particular embodiment, the operator can position the second textile edge of the mark which significantly reduces the risk of misplacement.
- the invention also relates to a method of welding at least two coated textiles, comprising at least the following steps:
- said textiles are welded at a temperature greater than or equal to the disappearing temperature.
- the textile is thus subjected, localized at the mark, to a temperature greater than or equal to the disappearing temperature.
- the mark is no longer visible once the textiles welded together.
- FIG. 1 is a view from above of a textile according to a first embodiment of the invention, in which the mark is a drawing positioned on a selvedge of the textile,
- FIG. 2 is a temperature curve to which the textile of FIG.
- FIG. 3 is a view from above of the textile of the figure after having been subjected to the temperature curve of FIG. 2,
- FIG. 4 is a temperature curve to which the textile of FIG.
- FIG. 5 is a view from above of the textile of the figure after having been subjected to the temperature curve of FIG. 4,
- FIG. 6 is a temperature curve to which the textile of FIG.
- FIG. 7 is a view from above of the textile of the figure after having been subjected to the temperature curve of FIG. 6,
- FIG. 8 is a view from above of a textile according to a second embodiment of the invention, in which the mark is a contour delimiting an area and a second fabric intended to cover said area;
- FIG. 9 is a view from above of the two textiles of FIG. 8 positioned with a view to their welding
- FIG. 10 is a view from above of the two textiles of FIG. 9 during the welding step
- Figure 11 is a top view of the two textiles of Figure 9 after the soldering step.
- FIGS. 1 and 11 may have been exaggerated with respect to reality, and have only been given in order to facilitate the understanding of the invention.
- the textile 1 carries a mark 2, in the form of a drawing, positioned on a selvedge 11 of said textile 1.
- Figure 2 shows a temperature curve to which the textile 1 was subjected.
- the textile has been subjected to a temperature greater than or equal to the disappearing temperature 3, but has not been subjected to a temperature below the re-appearance temperature 4.
- the mark 2 is no longer visible to the naked eye and the user finds himself in possession of a textile 1 having no drawing. The user then knows that the textile 1 has been damaged by exposure to excessive heat during storage and / or transportation.
- Figure 4 shows a temperature curve to which the textile 1 was subjected.
- the textile has been subjected neither to a temperature greater than or equal to the disappearing temperature 3, nor to a temperature below the reappearance temperature 4.
- Figure 6 shows a temperature curve to which the textile 1 was subjected.
- the textile was subjected to a temperature greater than or equal to the disappearing temperature 3, and was subjected to a temperature below the re-appearance temperature 4.
- the mark 21 is visible to the naked eye and the user finds himself in possession of a textile 1 exhibiting a drawing whose optical properties are different from the mark 2. The user then knows that the textile 1 has been damaged by exposure to excessive heat during storage and / or transportation.
- the textile 1 can wear marks 2 in several places. In this case, it is possible to determine whether the textile 1 was only locally subjected to excessive heat. As illustrated in FIG. 8, the textile 5 has an edge 51 and a mark 6 representing the outline of the zone to be covered by the second textile 7. The textile 7 has a selvedge 71.
- the textile 7 is positioned on the textile 5 so that the edge 71 of the textile 7 is at the edge of the mark 6 of the textile 5.
- a portion of the textile 5 is positioned below the textile 7 and the edge 51 of the textile 5 is therefore found below the textile 7.
- the textile 5 and the textile 7 are then welded to each other by means of a welding means 8 displaced in the direction of the arrow 9.
- the mark 6 disappears as the welding means 8 passes on the textiles 5 and 7.
- the textile assembly 10 has no mark 6.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Coloring (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1854519A FR3081479B1 (fr) | 2018-05-28 | 2018-05-28 | Procede de marquage d'un textile mettant en oeuvre une encre thermoeffacable |
PCT/FR2019/051002 WO2019229311A1 (fr) | 2018-05-28 | 2019-04-30 | Procede de marquage d'un textile mettant en oeuvre une encre thermoeffacable |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3802943A1 true EP3802943A1 (fr) | 2021-04-14 |
Family
ID=62751187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19728107.4A Pending EP3802943A1 (fr) | 2018-05-28 | 2019-04-30 | Procede de marquage d'un textile mettant en oeuvre une encre thermoeffacable |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3802943A1 (fr) |
CN (1) | CN112204191A (fr) |
FR (1) | FR3081479B1 (fr) |
WO (1) | WO2019229311A1 (fr) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2808786B2 (ja) * | 1990-02-09 | 1998-10-08 | 東レ株式会社 | 不可視識別マークの記録された繊維布帛 |
GB2448764A (en) * | 2007-04-27 | 2008-10-29 | Zahir Ahmed | Markable textile and method of manufacture thereof |
CN101462427A (zh) * | 2008-12-30 | 2009-06-24 | 武汉大学 | 多重防伪预印膜的制备方法 |
JP5511259B2 (ja) | 2009-08-18 | 2014-06-04 | パイロットインキ株式会社 | 可逆熱変色性水性インキ組成物及びそれを用いた筆記具、筆記具セット |
CN203219954U (zh) * | 2012-12-21 | 2013-10-02 | 吴英速 | 感温变色口罩 |
WO2015184523A1 (fr) * | 2014-06-03 | 2015-12-10 | Demille Gregory | Vêtements et équipements avec des motifs de camouflage verrouillables induits par la température |
CA2878596A1 (fr) * | 2014-06-03 | 2015-12-03 | Gregory DeMILLE | Vetements et equipement munis de motifs de camouflage fixes selon la temperature |
CN104050870A (zh) * | 2014-06-18 | 2014-09-17 | 上海申永烫金材料有限公司 | 温控标贴制作方法 |
CN204393580U (zh) * | 2014-11-17 | 2015-06-17 | 常州市武进常友无纺布制品厂 | 一种一片式阴阳感温钱包 |
CN105017698B (zh) * | 2015-06-11 | 2017-06-30 | 付国东 | 一种光热响应型智能节能复合膜 |
CN105713238A (zh) * | 2016-02-02 | 2016-06-29 | 付国东 | 一种纳米复合光热响应体系、树脂材料及智能玻璃 |
CN107338656A (zh) * | 2017-09-06 | 2017-11-10 | 无锡富仕德高科特材制造有限公司 | 预警耐温材料的制备方法、基于该方法的预警耐温材料 |
-
2018
- 2018-05-28 FR FR1854519A patent/FR3081479B1/fr active Active
-
2019
- 2019-04-30 EP EP19728107.4A patent/EP3802943A1/fr active Pending
- 2019-04-30 CN CN201980036298.2A patent/CN112204191A/zh active Pending
- 2019-04-30 WO PCT/FR2019/051002 patent/WO2019229311A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FR3081479A1 (fr) | 2019-11-29 |
FR3081479B1 (fr) | 2020-05-22 |
WO2019229311A1 (fr) | 2019-12-05 |
CN112204191A (zh) | 2021-01-08 |
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