EP2410089B1 - Process and machine for finishing fabrics or leathers - Google Patents
Process and machine for finishing fabrics or leathers Download PDFInfo
- Publication number
- EP2410089B1 EP2410089B1 EP11174802.6A EP11174802A EP2410089B1 EP 2410089 B1 EP2410089 B1 EP 2410089B1 EP 11174802 A EP11174802 A EP 11174802A EP 2410089 B1 EP2410089 B1 EP 2410089B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spreading
- station
- roller
- band
- hot
- 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.)
- Not-in-force
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06Q—DECORATING TEXTILES
- D06Q1/00—Decorating textiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
- B05C1/083—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/086—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line a pool of coating material being formed between a roller, e.g. a dosing roller and an element cooperating therewith
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/44—Mechanical treatment of leather surfaces
- C14B1/56—Ornamenting, producing designs, embossing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M17/00—Producing multi-layer textile fabrics
- D06M17/04—Producing multi-layer textile fabrics by applying synthetic resins as adhesives
Definitions
- This invention relates to a process and a machine for finishing fabrics or leathers.
- band refers either to a continuous band of fabric or leather or to a piece of band, or a sheet, of fabric or leather.
- a known technique for finishing a band consists of transferring to the surface of the band a decorative layer, which is pressed and made to adhere to the band by passing the band and the layer through a passage formed by a presser roller and a counter-roller.
- This technique consisting of a lamination process, allows the transfer to the band both of a layer designed to completely cover the band and a patterned layer.
- the layers which are used for this processing are available in various colours and may also be metallised or have holographic or multi-coloured effects.
- the process of lamination of the entire surface of the band also called "all over" lamination, involves a first step of depositing a hot-melt glue on the surface of the band, a subsequent step of drying the glue and a final step of applying the layer on the band by means of the above-mentioned presser roller and counter-roller.
- the surface of the presser roller, and if necessary also the surface of the counter-roller, is heated in a controlled fashion to allow the reactivation of the glue previously applied.
- the background art of the patterned lamination process involves coupling a patterned adhesive transfer film on the surface of the band, delaminating the transfer film after a catalysing process, and applying the layer on the adhesive surface of the band.
- the patterned lamination process involves applying on the band a patterned layer whose surface which is intended to adhere to the band already has glue on it.
- the patterned lamination processes described above are not very suitable for productions with many decorative variants, since for each production there must be a related store of patterned layers or patterned transfer films.
- the aim of this invention is to provide a process for finishing fabrics or leathers which is free of the above-mentioned disadvantages.
- the aim of this invention is to provide a process for finishing fabrics or leathers which allows low production costs and/or which allows the decoration to be changed in a simple, economical way.
- This invention also has for an aim to provide a machine for finishing fabrics or leathers which has limited dimensions.
- a further aim of this invention is to provide a machine for finishing fabrics or leathers which is versatile for being able to change the decoration in a simple and economical fashion.
- this invention provides a process for finishing fabrics or leathers comprising the features described in one or more of the appended claims.
- this invention also provides a machine for finishing fabrics or leathers comprising the features described in one or more of the appended claims.
- the numeral 1 denotes in its entirety a machine for finishing fabrics or leathers. More precisely, by means of a machine 1 application unit 2, it is possible to permanently apply a decoration on the surface of a band 3 of fabric or leather.
- the band 3 is a continuous band unwound from a reel 3a and taken up on a reel 3b along a processing path P.
- the reels 3a and 3b both have a horizontal axis.
- the application unit 2 comprises a station S for spreading a hot-melt glue on the band 3.
- the hot-melt glue is a reactive polymer, which is particularly insensitive to washing, even at high temperatures, of the products obtained from the band 3, or, alternatively, it is a thermoplastic polymer.
- the application unit 2 also comprises a station A for feeding the band 3 to the spreading station S and a station R for collecting the finished band 3, that is to say, the band on which the surface decoration has been applied.
- the path P starts in the station A and ends in the station R.
- the feed station A comprises a first module 4 of the machine 1, equipped with a frame 5.
- the frame 5 supports a device 6 for unwinding the band 3 from the reel 3a.
- the unwinding device 6 is of the known type and therefore is not described in detail herein.
- the spreading station S is formed by a second module 7 of the machine 1, equipped with a frame 8.
- the collecting station R is formed by a third module 9 of the machine 1, equipped with a frame 10.
- the frame 10 supports a device 11 for taking up the band 3 onto the reel 3b.
- the take up device 11 comprises a reel-holder support 12 on which three reel-holder pins 13 are mounted.
- the pins are motor-driven, horizontal and arranged at 120° from each other.
- the support 12 rotates about a horizontal axis to allow the movement of each pin 13 from the operating position for take up of the band 3 on the reel 3b to a position for delivery of a complete reel 3b.
- the take up of the band 3 is switched to the reel 3b supported by the adjacent pin 13, which takes over the take up position thanks to the 120° rotation of the support 12.
- the modules 4 and 9 are alongside the module 7, on opposite sides of it, relative to which they can move in a linear fashion for facilitating processing start, maintenance and cleaning operations.
- the frames 5 and 10 are mounted on respective carriages 14 and 15 can move independently and in a linear fashion from and towards the frame 8.
- the movement of the carriages 14 and 15 is preferably assisted by or driven by a motor-driven drive unit.
- the application unit 2 also comprises a lamination station L for superposing and pressing a decorative layer 16 onto the hot-melt glue and the band 3.
- the lamination station L is positioned downstream of the spreading station S, between the latter and the collecting station R. Between the station S and the station L the path P is substantially horizontal.
- the lamination station L comprises a laminating device 17, which is preferably housed in the module 9.
- the laminating device 17 comprises a frame 18, which is preferably mounted on the carriage 15 alongside the frame 10.
- the unwinding device 19 is of the known type and therefore is not described in detail herein.
- the rollers 20 are pressed against each other in the known way in a direction which is at a right angle to that of their horizontal axes of rotation.
- the upper roller 20 receives the layer 16 from the unwinding device 19 and conveys it, superposed on the band 3, towards the zone where the upper roller 20 and the lower roller 20 operate in conjunction with each other to press the layer 16 onto the hot-melt glue and the band 3, making the layer adhere to them.
- the application unit 2 also comprises a station H for preheating the band 3.
- the preheating station H is positioned upstream of the spreading station S and comprises a heating device 21.
- the heating device 21 is housed in the module 7 and, more precisely, is formed by a pair of return rollers 22 for the band 3.
- the rollers 22, both with horizontal axes, are heated and kept at a controlled temperature, and are supported cantilever-style by the frame 8 immediately upstream of the spreading station S.
- the spreading station S comprises at least one spreading roller 24 with a horizontal axis, and at least one counter-roller 25, which also has a horizontal axis and which is positioned on the opposite side of the band 3 from the spreading roller 24.
- the roller 24 has a cylindrical lateral surface 26.
- the spreading station S also comprises two wiping blades 29 operating on the spreading roller 24 with angles of incidence which, relative to one direction of rotation of the roller 24, are respectively acute and obtuse, and which, relative to the opposite direction of rotation of the roller 24, are respectively obtuse and acute.
- Each of the two wiping blades 29 will therefore be “positive” or “negative” depending on the direction of rotation of the spreading roller 24.
- the reservoir 23 is a chamber containing the hot-melt glue and comprises at its base an opening for feeding the roller 24.
- the roller 24, with its lateral surface 26, closes the above-mentioned opening and, at the same time, with its rotation, draws the hot-melt glue from the reservoir 23.
- the lateral surface 26 of the roller 24 comprises a matrix 27 of cells 28 designed to receive and transfer the hot-melt glue from the reservoir 23 to the band 3.
- the cells 28 are arranged on the surface 26 of the spreading roller 24 according to a pattern which reproduces a predetermined ornamental motif.
- the cells 28 may be arranged on the surface 26 of the spreading roller 24 in a regular and uniform way for transferring the hot-melt glue onto the entire surface of the band 3 rather than in a pattern.
- the flow of hot-melt glue transferred is selected depending on the degree of absorption of the fabric.
- the surface 26 of the spreading roller 24 is kept hot at a predetermined temperature, for example between 100°C and 200°C, by a temperature control system and a heating device, both of the known type.
- the heating device may be of the kind with a heating element or induction and may be connected to a thermostat.
- the spreading roller 24 and the counter-roller 25 are motor-driven for rotating in the same direction of rotation, or, according to a different operating mode, with respective opposite directions of rotation.
- the quantity of hot-melt glue transferred to the band 3 may be increased by increasing the speed of rotation of the spreading roller 24.
- Both of the wiping blades 29 are kept hot at a predetermined temperature, for example between 100°C and 200°C, by a temperature control system and a heating device, both of the known type.
- the spreading roller 24 is interchangeable with at least one other roller 24 for being able to change the spreading, with or without a pattern, of the hot-melt glue by simply swapping over the above-mentioned rollers 24.
- the spreading station S comprises a roller support 31 on which three spreading rollers 24 are mounted. The three rollers 24 are positioned at 120° from each other.
- the support 31 rotates about a horizontal axis to allow the movement of each spreading roller 24 from the spreading station S to a standby station and vice versa.
- the support 31 can move vertically to allow lifting of the spreading roller 24 from the path P, before rotation of the support 31, and lowering of the spreading roller 24 onto the path P again, in conjunction with the counter-roller 25, at the end of support 31 rotation.
- the vertical movement of the support 31 is driven by an electric, hydraulic or pneumatic movement unit 32, while the balanced rotation of the support 31 about its own horizontal axis is manual.
- actuator means for automatically performing rotation of the support 31 about its horizontal axis.
- the cleaning unit 33 preferably comprises a washing chamber and/or a battery of washing nozzles, able to move away from and towards the roller 24, and/or scraper means such as brushes or wiping blades, able to move away from and towards the surface 26 of the roller 24.
- the hot-melt glue is spread on the entire surface of the band 3 with a predetermined flow, or in a patterned fashion according to a predetermined ornamental motif.
- the layer 16, which is not patterned is laminated on the hot-melt glue and on the band 3 to obtain on the band 3 the ornamental motif determined by the layout of the cells 28 of the spreading roller 24.
- the spreading rollers 24 which are not operating can be preheated so that they are ready to substitute the operating roller and to receive the hot-melt polymer without waiting times and reductions in productivity.
- the lamination station L is absent and the decoration on the band 3 is obtained by simply depositing hot-melt glue and subsequently drying it.
- the hot-melt glue is spread in a patterned fashion according to a predetermined ornamental motif and contains, mixed with it, coloured pigments.
- the one or more rollers 20 are heated using known methods and devices.
- the machine according to this invention comprises a single control unit, not illustrated, for controlling heating of the wiping blades 29 and the preheating station H (in particular of the rollers 22 of the heating device 21), and the spreading roller 24 and even at least one of the laminating rollers 20.
- the use of a single control unit allows the best possible coordination and management of all of the machine heating steps.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Fiber Materials (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
- This invention relates to a process and a machine for finishing fabrics or leathers.
- In this text the term "band" refers either to a continuous band of fabric or leather or to a piece of band, or a sheet, of fabric or leather.
- In the textile and leather tanning sectors a known technique for finishing a band consists of transferring to the surface of the band a decorative layer, which is pressed and made to adhere to the band by passing the band and the layer through a passage formed by a presser roller and a counter-roller.
- This technique, consisting of a lamination process, allows the transfer to the band both of a layer designed to completely cover the band and a patterned layer.
- The layers which are used for this processing are available in various colours and may also be metallised or have holographic or multi-coloured effects.
- The process of lamination of the entire surface of the band, also called "all over" lamination, involves a first step of depositing a hot-melt glue on the surface of the band, a subsequent step of drying the glue and a final step of applying the layer on the band by means of the above-mentioned presser roller and counter-roller.
- The surface of the presser roller, and if necessary also the surface of the counter-roller, is heated in a controlled fashion to allow the reactivation of the glue previously applied.
- In contrast, the background art of the patterned lamination process involves coupling a patterned adhesive transfer film on the surface of the band, delaminating the transfer film after a catalysing process, and applying the layer on the adhesive surface of the band.
- Alternatively, the patterned lamination process involves applying on the band a patterned layer whose surface which is intended to adhere to the band already has glue on it.
- It is salso known from documents
GB 1 276 495 US 3 330 717 andGB 1 124 379 - The lamination processes described above are not very satisfactory, since they involve high production costs.
- In particular, the process described above, of "all over" lamination of the surface of the band, is quite long and, since it requires a station for drying the hot-melt glue, needs a machine with large dimensions.
- In contrast, the patterned lamination processes described above are not very suitable for productions with many decorative variants, since for each production there must be a related store of patterned layers or patterned transfer films. The aim of this invention is to provide a process for finishing fabrics or leathers which is free of the above-mentioned disadvantages.
- In particular, the aim of this invention is to provide a process for finishing fabrics or leathers which allows low production costs and/or which allows the decoration to be changed in a simple, economical way.
- This invention also has for an aim to provide a machine for finishing fabrics or leathers which has limited dimensions.
- A further aim of this invention is to provide a machine for finishing fabrics or leathers which is versatile for being able to change the decoration in a simple and economical fashion.
- Accordingly, this invention provides a process for finishing fabrics or leathers comprising the features described in one or more of the appended claims.
- Accordingly, this invention also provides a machine for finishing fabrics or leathers comprising the features described in one or more of the appended claims.
- The technical features of the invention are clearly described in the claims below and its advantages are more apparent from the detailed description which follows, with reference to the accompanying drawings which illustrate a preferred, non-limiting example embodiment of the invention and in which:
-
Figure 1 is a front view of a machine for finishing fabrics or leathers made in accordance with this invention; -
Figure 2 is an enlarged view of a detail of the machine ofFigure 1 ; -
Figure 3 is a side view of the machine ofFigure 1 ; and -
Figure 4 is a view of a detail of the machine ofFigure 1 . - In
Figure 1 the numeral 1 denotes in its entirety a machine for finishing fabrics or leathers. More precisely, by means of a machine 1application unit 2, it is possible to permanently apply a decoration on the surface of aband 3 of fabric or leather. - In particular, in the example shown, the
band 3 is a continuous band unwound from areel 3a and taken up on areel 3b along a processing path P. Thereels - Along the path P, the
application unit 2 comprises a station S for spreading a hot-melt glue on theband 3. - The hot-melt glue is a reactive polymer, which is particularly insensitive to washing, even at high temperatures, of the products obtained from the
band 3, or, alternatively, it is a thermoplastic polymer. - The
application unit 2 also comprises a station A for feeding theband 3 to the spreading station S and a station R for collecting the finishedband 3, that is to say, the band on which the surface decoration has been applied. - The path P starts in the station A and ends in the station R.
- The feed station A comprises a
first module 4 of the machine 1, equipped with aframe 5. Theframe 5 supports adevice 6 for unwinding theband 3 from thereel 3a. Theunwinding device 6 is of the known type and therefore is not described in detail herein. - The spreading station S, described in detail below, is formed by a
second module 7 of the machine 1, equipped with aframe 8. - The collecting station R is formed by a
third module 9 of the machine 1, equipped with aframe 10. - The
frame 10 supports adevice 11 for taking up theband 3 onto thereel 3b. - The take up
device 11 comprises a reel-holder support 12 on which three reel-holder pins 13 are mounted. The pins are motor-driven, horizontal and arranged at 120° from each other. Thesupport 12 rotates about a horizontal axis to allow the movement of eachpin 13 from the operating position for take up of theband 3 on thereel 3b to a position for delivery of acomplete reel 3b. In other words, once areel 3b is complete, the take up of theband 3 is switched to thereel 3b supported by theadjacent pin 13, which takes over the take up position thanks to the 120° rotation of thesupport 12. - The
modules module 7, on opposite sides of it, relative to which they can move in a linear fashion for facilitating processing start, maintenance and cleaning operations. In particular, theframes respective carriages frame 8. - The movement of the
carriages - The
application unit 2 also comprises a lamination station L for superposing and pressing adecorative layer 16 onto the hot-melt glue and theband 3. Along the path P, the lamination station L is positioned downstream of the spreading station S, between the latter and the collecting station R. Between the station S and the station L the path P is substantially horizontal. - The lamination station L comprises a
laminating device 17, which is preferably housed in themodule 9. - The
laminating device 17 comprises aframe 18, which is preferably mounted on thecarriage 15 alongside theframe 10. - Mounted on the
frame 18 there is adevice 19 for unwinding thelayer 16 from arespective reel 16a, and a pair oflaminating rollers 20 with horizontal axes, which are positioned on the path P on opposite sides of theband 3. - The
unwinding device 19 is of the known type and therefore is not described in detail herein. - The
rollers 20 are pressed against each other in the known way in a direction which is at a right angle to that of their horizontal axes of rotation. Theupper roller 20 receives thelayer 16 from theunwinding device 19 and conveys it, superposed on theband 3, towards the zone where theupper roller 20 and thelower roller 20 operate in conjunction with each other to press thelayer 16 onto the hot-melt glue and theband 3, making the layer adhere to them. - The
application unit 2 also comprises a station H for preheating theband 3. Along the path P, the preheating station H is positioned upstream of the spreading station S and comprises aheating device 21. - The
heating device 21 is housed in themodule 7 and, more precisely, is formed by a pair ofreturn rollers 22 for theband 3. Therollers 22, both with horizontal axes, are heated and kept at a controlled temperature, and are supported cantilever-style by theframe 8 immediately upstream of the spreading station S. - As
Figure 2 shows more clearly, the spreading station S comprises at least one spreadingroller 24 with a horizontal axis, and at least onecounter-roller 25, which also has a horizontal axis and which is positioned on the opposite side of theband 3 from the spreadingroller 24. - The
roller 24 has a cylindricallateral surface 26. With reference toFigure 2 , the spreading station S also comprises twowiping blades 29 operating on the spreadingroller 24 with angles of incidence which, relative to one direction of rotation of theroller 24, are respectively acute and obtuse, and which, relative to the opposite direction of rotation of theroller 24, are respectively obtuse and acute. - Each of the two
wiping blades 29 will therefore be "positive" or "negative" depending on the direction of rotation of the spreadingroller 24. - The
wiping blades 29, in conjunction with thelateral surface 26 of theroller 24 facing thecounter-roller 25, form respective compartments for accumulating the hot-melt glue, the compartments forming asmany glue reservoirs 23. - Therefore, the
reservoir 23 is a chamber containing the hot-melt glue and comprises at its base an opening for feeding theroller 24. Theroller 24, with itslateral surface 26, closes the above-mentioned opening and, at the same time, with its rotation, draws the hot-melt glue from thereservoir 23. More precisely, as shown inFigure 4 , thelateral surface 26 of theroller 24 comprises amatrix 27 ofcells 28 designed to receive and transfer the hot-melt glue from thereservoir 23 to theband 3. - The
cells 28 are arranged on thesurface 26 of the spreadingroller 24 according to a pattern which reproduces a predetermined ornamental motif. Alternatively, thecells 28 may be arranged on thesurface 26 of the spreadingroller 24 in a regular and uniform way for transferring the hot-melt glue onto the entire surface of theband 3 rather than in a pattern. - The flow of hot-melt glue transferred is selected depending on the degree of absorption of the fabric.
- The
surface 26 of the spreadingroller 24 is kept hot at a predetermined temperature, for example between 100°C and 200°C, by a temperature control system and a heating device, both of the known type. For example, the heating device may be of the kind with a heating element or induction and may be connected to a thermostat. - The spreading
roller 24 and the counter-roller 25 are motor-driven for rotating in the same direction of rotation, or, according to a different operating mode, with respective opposite directions of rotation. - If the spreading
roller 24 rotates in the opposite direction to the direction of infeed of theband 3 into the space between the spreadingroller 24 and the counter-roller 25, the quantity of hot-melt glue transferred to theband 3 may be increased by increasing the speed of rotation of the spreadingroller 24. - Both of the
wiping blades 29 are kept hot at a predetermined temperature, for example between 100°C and 200°C, by a temperature control system and a heating device, both of the known type. According to the example shown, the spreadingroller 24 is interchangeable with at least oneother roller 24 for being able to change the spreading, with or without a pattern, of the hot-melt glue by simply swapping over the above-mentionedrollers 24. For that purpose, the spreading station S comprises aroller support 31 on which three spreadingrollers 24 are mounted. The threerollers 24 are positioned at 120° from each other. - The
support 31 rotates about a horizontal axis to allow the movement of each spreadingroller 24 from the spreading station S to a standby station and vice versa. - The
support 31 can move vertically to allow lifting of the spreadingroller 24 from the path P, before rotation of thesupport 31, and lowering of the spreadingroller 24 onto the path P again, in conjunction with the counter-roller 25, at the end ofsupport 31 rotation. - Preferably, as
Figure 3 shows more clearly, the vertical movement of thesupport 31 is driven by an electric, hydraulic orpneumatic movement unit 32, while the balanced rotation of thesupport 31 about its own horizontal axis is manual. - According to alternative embodiments, not illustrated, there are actuator means for automatically performing rotation of the
support 31 about its horizontal axis. - At both of the standby stations, or just one of them, there is a
unit 33 for cleaning thesurface 26 of the spreadingroller 24. - The
cleaning unit 33 preferably comprises a washing chamber and/or a battery of washing nozzles, able to move away from and towards theroller 24, and/or scraper means such as brushes or wiping blades, able to move away from and towards thesurface 26 of theroller 24. - During operation, depending on the spreading
roller 24 selected, the hot-melt glue is spread on the entire surface of theband 3 with a predetermined flow, or in a patterned fashion according to a predetermined ornamental motif. In the latter case, thelayer 16, which is not patterned, is laminated on the hot-melt glue and on theband 3 to obtain on theband 3 the ornamental motif determined by the layout of thecells 28 of the spreadingroller 24. With a simple 120° rotation of theroller support 31, changing the spreadingroller 24 being used for a spreadingroller 24 on standby, equipped with a different number and/or different layout and/or depth and/or density ofcells 28, it is possible to rapidly and economically change the decoration, while keepinglayer 16 feed unchanged. Preferably, the spreadingrollers 24 which are not operating can be preheated so that they are ready to substitute the operating roller and to receive the hot-melt polymer without waiting times and reductions in productivity. - According to an alternative embodiment, the lamination station L is absent and the decoration on the
band 3 is obtained by simply depositing hot-melt glue and subsequently drying it. In that case, the hot-melt glue is spread in a patterned fashion according to a predetermined ornamental motif and contains, mixed with it, coloured pigments. Moreover, to guarantee complete drying of the hot-melt glue before theband 3 is taken up on thereel 3b, there are preferably drying means, not illustrated herein, which are positioned between the stations S and R. - According to alternative embodiments not illustrated, there are more than three spreading
rollers 24 mounted on theroller support 31. More generally, the number of spreadingrollers 24 mounted on thesupport 31 is between 2 and 12. According to further alternative embodiments not illustrated, one or both of the above-mentionedlaminating rollers 20 of thelaminating device 17 are heated. - The one or
more rollers 20 are heated using known methods and devices. - Advantageously, with the use of non-thermoplastic polymers, said heating of the
roller 20 allows reactivation of the glue previously applied. Advantageously, according to a preferred embodiment, the machine according to this invention comprises a single control unit, not illustrated, for controlling heating of thewiping blades 29 and the preheating station H (in particular of therollers 22 of the heating device 21), and the spreadingroller 24 and even at least one of thelaminating rollers 20. - According to that advantageous embodiment, the use of a single control unit allows the best possible coordination and management of all of the machine heating steps.
- The invention described above is susceptible of industrial application and may be modified and adapted in several ways without thereby departing from the scope of the inventive concept. Moreover, all the details of the invention may be substituted by technically equivalent elements.
Claims (15)
- A process for finishing fabrics or leathers, comprising the steps of applying a decoration on a respective band (3) of fabric or leather and stabilising the decoration on the band (3) to make it permanent; the application of the decoration comprising a step of spreading a hot-melt glue on the band (3) by spreading roller (24); characterised in that it further comprises a step of rotating a support (31) to move a plurality of spreading roller (24) from a spreading station (S) to a standby station and vice versa.
- The process according to claim 1, characterised in that the spreading step is carried out by transferring the hot-melt glue from a reservoir (23) to the band (3) by means of a spreading roller (24) on whose surface (26) there is a matrix (27) of cells (28) designed to receive and transfer the hot-melt glue.
- The process according to claim 2, characterised in that the cells (28) are made on the spreading roller (24) according to a predetermined pattern.
- The process according to any of the foregoing claims from 1 to 3, characterised in that the hot-melt glue is spread in a patterned fashion according to a predetermined ornamental motif.
- The process according to claim 4, characterised in that the hot-melt glue contains coloured pigments which are mixed in with it.
- The process according to any of the foregoing claims from 1 to 3, characterised in that, after the spreading step, application of the decoration comprises a step of superposing a decorative layer (16) on the hot-melt glue; the superposing step being followed by pressing the layer (16) and the band (3) together.
- A machine for finishing fabrics or leathers, comprising a unit (2) for applying a decoration on a respective band (3) of fabric or leather; the unit (2) comprising a station (S) for spreading a hot-melt glue on the band (3), the spreading station (S) comprising at least one hot-melt glue reservoir (23) and at least one spreading roller (24) on whose surface (26) there is a matrix (27) of cells (28) designed to receive and transfer the hot-melt glue from the reservoir (23) to the band (3); characterised in that the spreading station (S) comprises a roller support (31) on which at least two spreading rollers (24) are mounted; the support (31) being able to move, allowing each spreading roller (24) to be moved from the spreading station (S) to a standby station and vice versa.
- The machine according to claim 7, characterised in that, downstream of the spreading station (S), the application unit (2) comprises a lamination station (L) for superposing and pressing a decorative layer (16) onto the hot-melt glue and the band (3).
- The machine according to claim 7 or 8, comprising a lamination station (L) equipped with at least two laminating rollers (20) with horizontal axes which are pressed against each other, characterised in that at least one of the rollers is heated.
- The machine according to claim 7, characterised in that the standby station comprises means (33) for cleaning the surface (26) of the spreading roller (24).
- The machine according to any of the foregoing claims from 7 to 10, characterised in that the spreading station (S) comprises at least one counter-roller (25) positioned on the opposite side of the band (3) from the spreading roller (24); the spreading roller (24) and the counter-roller (25) being motor-driven in such a way that they have the same direction of rotation.
- The machine according to any of the foregoing claims from 7 to 10, characterised in that the spreading station (S) comprises at least one counter-roller (25) positioned on the opposite side of the band (3) from the spreading roller (24); the spreading roller (24) and the counter-roller (25) being motor-driven in such a way that they rotate in opposite directions.
- The machine according to any of the foregoing claims from 7 to 12, characterised in that the spreading station (S) comprises two wiping blades (29) operating on the spreading roller (24) with angles of incidence which are respectively acute and obtuse.
- The machine according to any of the foregoing claims from 7 to 13, comprising a station (A) for feeding the band (3) to the spreading station (S) and a station (R) for collecting the finished band (3); the feed, spreading and collecting stations (A, S, R) being formed by respective modules (4, 7, 9) of the machine, characterised in that the modules (4, 9) forming the feed station (A) and, respectively, the collecting station (R) are positioned in a mobile fashion on opposite sides of the module (7) forming the spreading station (S).
- The machine according to claims 9 and 13, comprising a preheating station (H), characterised in that it comprises a single control unit for heating the wiping blades (29), the preheating station (H), the spreading roller (24) and at least one of the laminating rollers (20).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBO2010A000467A IT1401049B1 (en) | 2010-07-23 | 2010-07-23 | PROCESS AND MACHINE FOR LAMINATION OF FABRICS OR SKINS. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2410089A2 EP2410089A2 (en) | 2012-01-25 |
EP2410089A3 EP2410089A3 (en) | 2012-09-05 |
EP2410089B1 true EP2410089B1 (en) | 2016-12-28 |
Family
ID=43628735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11174802.6A Not-in-force EP2410089B1 (en) | 2010-07-23 | 2011-07-21 | Process and machine for finishing fabrics or leathers |
Country Status (2)
Country | Link |
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EP (1) | EP2410089B1 (en) |
IT (1) | IT1401049B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102941182B (en) * | 2012-11-30 | 2014-12-10 | 陕西昕宇表面工程有限公司 | Device and technique for shielding with hot-melt strippable coating before electroplating |
CN105234042A (en) * | 2015-10-29 | 2016-01-13 | 江苏利特尔绿色包装股份有限公司 | Oil-seepage-prevention coating device |
ITUB20155948A1 (en) * | 2015-11-26 | 2017-05-26 | Biko Mecc S R L | GLUING MACHINE FOR ABRASIVE MATERIAL PRODUCTION PLANTS |
CN109225765A (en) * | 2018-10-25 | 2019-01-18 | 惠州市浩明科技股份有限公司 | Electronic tag rubber-coated mechanism and coating mould group |
EP4006175A1 (en) * | 2020-11-30 | 2022-06-01 | GE.MA.TA. S.p.A. | Machine and a method for depositing a layer of a chemical substance on hides |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4962702A (en) * | 1987-08-28 | 1990-10-16 | Reefdale Pty. Ltd. | Screen printing machines |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3330717A (en) * | 1967-07-11 | Laminating apparatus | ||
FR1486618A (en) * | 1965-07-12 | 1967-10-12 | ||
GB1276495A (en) * | 1968-06-27 | 1972-06-01 | Bostik Ltd | Improvements in or relating to machines for applying molten compositions, and to products of the machines |
-
2010
- 2010-07-23 IT ITBO2010A000467A patent/IT1401049B1/en active
-
2011
- 2011-07-21 EP EP11174802.6A patent/EP2410089B1/en not_active Not-in-force
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4962702A (en) * | 1987-08-28 | 1990-10-16 | Reefdale Pty. Ltd. | Screen printing machines |
Also Published As
Publication number | Publication date |
---|---|
IT1401049B1 (en) | 2013-07-12 |
EP2410089A2 (en) | 2012-01-25 |
EP2410089A3 (en) | 2012-09-05 |
ITBO20100467A1 (en) | 2012-01-24 |
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