EP4474562A1 - Vorrichtung zum verdichten eines endlosen textilen substrats mittels eines elastischen bandes - Google Patents

Vorrichtung zum verdichten eines endlosen textilen substrats mittels eines elastischen bandes Download PDF

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Publication number
EP4474562A1
EP4474562A1 EP24178497.4A EP24178497A EP4474562A1 EP 4474562 A1 EP4474562 A1 EP 4474562A1 EP 24178497 A EP24178497 A EP 24178497A EP 4474562 A1 EP4474562 A1 EP 4474562A1
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EP
European Patent Office
Prior art keywords
belt
roller
motorized
rollers
cylinder
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
Application number
EP24178497.4A
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English (en)
French (fr)
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EP4474562B1 (de
Inventor
Giulio MANDRUZZATO
Andrea NICOLETTI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Santex Rimar Group SRL
Original Assignee
Santex Rimar Group SRL
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Publication of EP4474562A1 publication Critical patent/EP4474562A1/de
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Publication of EP4474562B1 publication Critical patent/EP4474562B1/de
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C21/00—Shrinking by compressing

Definitions

  • the present invention refers to an apparatus for compacting a continuous textile substrate by means of an elastic belt.
  • the process of compacting textiles or substrates is one of the main processes in the field of textile finishing and has the purpose of imparting stability to textiles before moving on to the packaging step.
  • stability and compaction to the texile is imparted using machines with established technology that make use of a change in the curvature of a felt or rubber belt on which is placed the texile to which impart compaction.
  • the change in curvature of the support then imparts a longitudinal indent to the textile, which is then pressed against a hot cylinder, stabilizing the compacting effect and ensuring the dimensional stability of the textile once it leaves the machine.
  • the textile compaction (or shortening) process is essentially performed by means of a so-called “compression” technique which is based upon the use of a substantially deformable belt whereto the textile to be compacted is tightly coupled.
  • the deformation of the belt in the longitudinal forward direction by mechanical means suitable for the purpose, consists substantially in the sequence of a first dilation step and a second contraction step.
  • the textile, engaged integrally with the deformable surface of the belt undergoes, in particular during the contraction step, "compression” in the forward direction, i.e., compaction of its structure and, ultimately, longitudinal contraction.
  • the deformability of the belt may be determined by the type and features of the material of which it is made and also by the type of mechanical stress exerted thereupon by mechanical means suitable for deforming said belt.
  • deformations by means of squeezing the belt thereby resulting in the dilation (elongation) thereof, followed by contraction (shortening) to the initial relaxed state
  • deformations by means of varying the peripheral velocity of the belt obtained by sliding it over rollers or cylinders with a different curvature radius with an alternately convex and concave path, which alternately cause an increase (elongation) and decrease (shortening) in peripheral velocity
  • deformations by the longitudinal traction of the belt (elongation) followed by a release of the traction (shortening) to the initial relaxed state are deformations by means of squeezing the belt thereby resulting in the dilation (elongation) thereof, followed by contraction (shortening) to the initial relaxed state
  • the patent GB 563 638 describes an apparatus for compacting textiles which proposes to improve the prior art by using an endless elastic belt supported and guided by rollers, wherein one thereof rotates at a variable velocity that is greater than the preceding roller. In this way, that portion of the belt between said two rollers is placed in an elongated state, whilst during the next step with the tension being relaxed, the belt is subjected to longitudinal contraction of a magnitude equal to the previous elongation.
  • the textile coupled to the belt at the elongated portion thereof, follows it into the subsequent relaxed portion, partially wrapping around a rotating heated cylinder, also undergoing a corresponding longitudinal contraction or shortening.
  • a further negative aspect is linked to the fact that the elastic belt, which is therefore extensible in length, when subjected to longitudinal traction also deforms transversely with a consequent and uncontrollable decrease in width. As the traction stress ceases, both dimensions of the belt tend to regain the original measurements thereof, i.e., it widens, and since, as mentioned, it has not maintained any minimum residual tension, the surface thereof tends to run loose and unextended, transmitting such irregularities to the textile that is coupled thereto.
  • this solution provides for pretension traction to be applied to the elastic belt in such a way that it maintains a minimum residual tension at the end of the traction release step that caused the elongation thereof.
  • the textile compacting apparatus described in EP1657340A1 comprises a heated rotating cylinder around which an elastic belt is partially wrapped.
  • the elastic belt is moved by means of a plurality of motorized drive rollers and idle return rollers according to a predetermined closed path.
  • the roller apparatus is configured in such a way that by operating on the relative position of one of the rollers it is possible - during the step of mounting the belt onto the rollers - to pretension said belt with respect to the relaxed state thereof.
  • the elastic belt is further tensioned by elongation before coming into contact with the cylinder.
  • the belt comes into contact with the textile in the wrapping segment around the cylinder, the belt is free to contract longitudinally, thereby drawing the textile therewith in a relative movement with respect to the cylinder. In this way, the textile is drawn by the longitudinal contraction movement of the elastic belt and is thus compacted longitudinally.
  • the tensioning of the elastic belt (in addition to the pretensioned state) is implemented by means of the combined action of two sets of three rollers which are arranged in diametrically opposite positions with respect to the rotating cylinder.
  • a first set of three rollers is positioned immediately upstream of the heated cylinder (upstream of the first point of contact of the belt with the cylinder), while a second set of three rollers is positioned downstream of the cylinder (downstream of the point of detachment of the belt from the cylinder).
  • An idle return roller is arranged between the two sets of three rollers within the segment of the path of the elastic belt opposite to that which is in contact with the cylinder.
  • the rollers of the first set of three rollers are all motorized and rotate at the same first tangential velocity, with alternating directions of rotation.
  • the first rollers that the belt encounters are motorized and rotate at the same second tangential velocity, with alternating directions of rotation.
  • the third roller of the second set is, on the other hand, idle.
  • the elastic belt is elastically elongated throughout the path segment opposite to the wrapping segment around the cylinder, differentiating the tangential velocities that the two sets of three rollers impose upon the elastic belt.
  • the first tangential velocity i.e., imposed by the first set of three rollers
  • the second tangential velocity i.e., imposed by the second set of three rollers
  • the compacting apparatus described above improves the compaction process by virtue of the pretensioning of the belt, but the results obtained are not completely satisfactory.
  • the compacting apparatus described above does not allow for precise control of the elongation of the elastic belt and therefore of the degree of tensioning imposed upon said belt.
  • the roller movement apparatus does not allow for the complete elimination of slippages of the elastic belt with respect to the guide rollers. This negatively affects the efficiency of the compaction process.
  • the belt slippage problem has been solved by coating the guide rollers with a layer of rubber.
  • This strategy well known in the field of conveyor belts, allows the friction between the belt and the guide roller to be significantly increased, while at the same time counteracting abrasive phenomena on said belt. This strategy is described, for example, in WO2020/183410A1 and WO2020/178670A1 .
  • Rubberizing the guide rollers entails an increase in the production costs of said rollers compared to traditional rollers.
  • the rubberized coating must, in fact, be applied to the steel roller in respecting specific tolerances and in such a way as to ensure the long-lasting adhesion thereof.
  • the object of the present invention is to therefore eliminate in whole or in part the drawbacks of the aforementioned prior art in providing an apparatus for compacting textiles by means of an elastic belt which allows the belt to avoid slipping with respect to the guide rollers without requiring the rubberized coating of at least one of the guide rollers.
  • a further object of the present invention is to provide an apparatus for compacting textiles by means of an elastic belt which is simple and cost-effective to manufacture.
  • a further object of the present invention is to provide an apparatus for compacting textiles by means of an elastic belt which is manageable in an operatively simple manner.
  • an apparatus for compacting a continuous textile substrate by means of an elastic belt according to the invention has been indicated in the entirety thereof with the numeral 1.
  • the textile substrate T may be of any type; in particular it may be a cross-woven (shuttle) textile or a knitted textile.
  • the textile substrate may consist of any type of fiber used for shuttle and knitted textiles.
  • the compacting apparatus 1 comprises:
  • such a roller system comprises:
  • the motorized drive roller 31 and the motorized brake roller 32 are actuatable so as to slide said belt 20 along said closed path, imposing on said belt - according to a predetermined phase shifting degree of the respective tangential velocities - an additional elongation tension state at a first segment Q1 of said path, wherein the belt passes through the set of three rollers 31, 32 and 33, wrapping at least partially each of the three rollers.
  • said motorized drive roller 31, said motorized brake roller 32, and said first idle return roller 33 are mutually positioned so that the wrap angle ⁇ of said belt 20 around said motorized drive roller 31 and the wrap angle ⁇ of said belt 20 around said motorized brake roller 32 are not less than 90°.
  • the wrap angle of said belt 20 around said drive roller 31 is not less than 120°.
  • the belt is installed on the set of three rollers so as to follow an S-shaped path through the three rollers.
  • the two motorized drive rollers 31 and 32 contact the belt on the inner surface thereof, while the first idle return roller 33 contacts the belt on the outer surface thereof.
  • the first idle return roller 33 interposed between the two motorized rollers 31 and 32, may thus thrust the belt against them, facilitating the wrapping of the belt.
  • the "thrust" action of the return roller and therefore the effect in terms of wrapping may be calibrated by operating on the nominal diameters of the rollers and/or on the relative position of the centers of rotation.
  • the first path segment Q1 extends - with respect to a forward direction X of the belt - upstream of a second segment Q2 of said path wherein said belt 20 is kept in contact with the rotating cylinder.
  • the second path segment Q2 extends between said motorized drive roller 31 and said second idle return roller 34.
  • the closed path is completed by a third segment Q3 which extends between said second idle return roller 34 and said motorized brake roller 32.
  • the compacting apparatus 1 further comprises means 40 for guiding a textile substrate T between the belt 20 and the heatable cylinder 10 along the second segment Q2 of such closed path.
  • the compacting action on the textile substrate T takes place along the aforesaid second segment Q2 of the closed path.
  • the elastic belt contracts elastically and passes from the additional elongation tension state, which has been imposed upstream in the first segment Q1, to a state close to that of pretensioning.
  • the textile substrate T which in the second segment Q2, due to frictional forces, moves integrally with the belt 20, undergoes the contraction of the belt itself, and in turn contracts longitudinally thereby compacting itself.
  • the motorized drive roller 31 is the roller placed immediately upstream of the heatable cylinder 10
  • the second idle return roller 34 is the roller placed immediately downstream of the heatable cylinder 10.
  • the "closed path” corresponds to the total extension of the belt 20 when mounted pretensioned on the roller system.
  • the closed path is not modified by the local contractions and elongations of the belt.
  • the motorized drive roller 31 is a metal roller, the cylindrical side surface of which, intended to come into contact with said belt 20, is smooth with a roughness selected so as to generate, in contact with the elastic belt, a friction coefficient f which satisfies the following equation: T 2 T 1 ⁇ e f ⁇ where:
  • the ratio T2/T1 is a function of the predetermined pretensioning degree and the predetermined additional elongation tension state of the belt.
  • the values of the friction coefficient f that meet the aforesaid equation are such as to ensure that the belt does not slip on the roller.
  • the wrap angle ⁇ of the belt around the drive roller 31 is a dimensioning parameter of the compacting apparatus 1 and is therefore known.
  • the wrap angle ⁇ is fixed according to the arrangement of the set of three rollers 31, 32 and 33 dictated by the available space.
  • the values of the tensions T2 and T1 depend upon the pretension that is given to the belt and on the phase shifting of the tangential velocities of the drive roller and of the brake roller set during operation (additional elongation tension state of the belt).
  • T2 and T1 also depend upon the type of rubber of the belt and upon the section thereof.
  • the values of T1 and T2 should therefore be studied on a case-by-case basis.
  • the ratio between T2 and T1 is independent of the type of rubber used in the belt and the section thereof and, as mentioned above, it depends instead upon the pretension applied to the belt and upon the phase shifting conditions during operation.
  • the ratio T2/T1 must be below a threshold ( e fa ) which depends upon the wrap angle ( ⁇ ) and the friction coefficient (f). This is the condition that allows the belt to not slip and to therefore engage with the textile.
  • the elastic constant K of a belt may be calculated empirically by lengthening the belt and measuring the effort required to lengthen it.
  • Figure 5 shows the data of the measurements made for a belt with a thickness of 12 mm and width of 3000 mm.
  • Example calculation using the graph in Figure 5 , an elongation of 80% corresponds to a force of about 23,700 N.
  • the elongation takes into account both the pretension and the phase shift.
  • the calculation of T1 and T2 it is therefore easy, known the elongation.
  • friction coefficient is an empirical datum measured between the surfaces and is always obtained experimentally.
  • obtaining a correct friction coefficient reduces the risk of slippage between the belt and the rollers. This helps to improve the control over the elongation action of the belt and therefore increases the efficiency of the process of compacting the textile substrate.
  • the compacting apparatus 1 may assume different configurations regarding the wrap angle of the belt around the heatable rotating cylinder 10 in varying the position of the second idle return roller 34.
  • the wrap angle around the heated cylinder is about 90°, while in Figure 4 it is about 180°.
  • the wrap angle ⁇ of the belt around the heatable rotating cylinder 10 is per se irrelevant to the slipping of the belt on the drive cylinder 31.
  • the choice of the material and surface finish of the drive roller is not important insofar as the belt wraps around the heated cylinder. Only the tension state of the belt (pretension of the belt and maximum phase shift between the drive and brake rollers) and the wrap angle on the drive roller matter.
  • a reduction in the wrap angle of the belt around the heated cylinder 10 makes it possible to reduce wear to the belt (less slipping in the side areas not covered by the textile) and to reduce the negative effects on said textile (waves and folds due to a change in friction within the lateral areas).
  • wrap angle around the heated cylinder is 180°.
  • wrap angle ⁇ around the drive roller equal to 180°
  • wrap angle around the brake roller equal to 90°.
  • the pretensioning of the belt is 45%. Under these conditions the required friction coefficient f between the drive cylinder and the belt must be greater than 0.34; the required friction coefficient between the brake cylinder and the belt must be greater than 0.68.
  • wrap angle around the heated cylinder is 90°.
  • wrap angle ⁇ around the drive roller equal to 180°
  • wrap angle around the brake roller equal to 90°.
  • the belt pretensioning is 31%. Under these conditions the required friction coefficient f between the drive cylinder and the belt must be greater than 0.42; the required friction coefficient between the brake cylinder and the belt must be greater than 0.85.
  • the motorized drive 31 and brake rollers 32, the idle return rollers 33, 34, 35, as well as the heatable cylinder 10 are made of metal, preferably steel.
  • the motorized brake roller 32 is provided with a rubber coating 36 which covers the cylindrical side surface intended to come into contact with the belt 20.
  • a rubber coating 36 which covers the cylindrical side surface intended to come into contact with the belt 20.
  • both the first idle return roller 33 and the second idle return roller 34 are not rubberized.
  • both the first idle return roller 33 and the second idle return roller 34 are provided with a cylindrical side surface, preferably made of a metal material, intended to come into direct contact with the belt 20 without the interposition of a rubber coating covering said cylindrical side surface.
  • the idle return rollers 33 and 34 are not rubberized and the elastic belt 20 comes into direct contact with the metal side surface thereof, the friction between the belt and the idle rollers is reduced.
  • the roughness of the smooth surfaces of these rollers is chosen so as to minimize the friction coefficient. In this way, by virtue of the reduction of friction, the belt encounters fewer obstacles in its elastic extension and in its subsequent contraction.
  • the additional elongation tension state is imposed on the belt 20 by acting on the velocities of the motorized drive roller 31 and of the motorized brake roller 32 so as to create a difference between the tangential velocities of the side surfaces of the two rollers (intended to come into contact with the belt).
  • the elongation tension state (measurable, for example, in an elongation percentage with respect to the pretensioned state) increases as the difference in these velocities increases.
  • the apparatus 1 may comprise a control unit 50, preferably electronic, configured to control the rotation of the motorized drive roller 31 and the motorized brake roller 32 so that said two motorized rollers 31, 32 rotate in the same direction and so that the tangential velocity Vt of the motorized drive roller 31 is higher than the tangential velocity Vf of the motorized brake roller 32 according to a predetermined ratio Vf/Vt.
  • a control unit 50 preferably electronic, configured to control the rotation of the motorized drive roller 31 and the motorized brake roller 32 so that said two motorized rollers 31, 32 rotate in the same direction and so that the tangential velocity Vt of the motorized drive roller 31 is higher than the tangential velocity Vf of the motorized brake roller 32 according to a predetermined ratio Vf/Vt.
  • this predetermined ratio Vf/Vt between the tangential velocity of the motorized brake roller 32 and the tangential velocity of said motorized drive roller 31 is adjustable as a function of the amount of longitudinal elongation to be imposed on the belt at the first path segment Q1.
  • said predetermined ratio Vf/Vt is between 0.5 and 0.9, and preferably equal to 0.7.
  • the heatable rotating cylinder 10 is motorized.
  • the term "heatable cylinder” refers in particular to a cylinder equipped with or coupled to heating means.
  • the heating means may be of any type suitable for the purpose, i.e., heating the surface of the rotating cylinder.
  • control unit 50 is configured to control the rotation of the heatable cylinder so that the tangential velocity thereof (referred to the side surface 10a) is as close as possible to the tangential velocity of the motorized drive roller 31, and preferably equal thereto.
  • the motorized drive roller 31, the motorized brake roller 32, and the first idle return roller 33 are mutually positioned so that the aforementioned first segment Q1 of the closed path has an extension in length not greater than 35% of the entire closed path, and preferably, not less than 10%.
  • the motorized drive roller 31, the motorized brake roller 32, and the first idle return roller 33 are arranged relative to each other so as to assume a compact configuration.
  • compact configuration refers to a configuration wherein said three rollers 31, 32, and 33 are arranged closely therebetween when compared with the other rollers 34 and 35 of the roller system.
  • the "compact configuration" is essentially aimed at reducing as much as possible the extension of the first segment Q1 of the path in favor of the third segment Q3 of the path.
  • said three rollers 31, 32, and 33 may be arranged to form a set of three rollers with aligned centers of rotation. This choice is preferred from a construction point of view insofar as it allows for a reduction in the overall dimensions and simplifies the support structure of said rollers. However, configurations of the set of three rollers may be provided wherein the rollers are not aligned therebetween.
  • the motorized drive roller 31 is the roller placed immediately upstream of the heatable cylinder 10
  • the second idle return roller 34 is the roller placed immediately downstream of the heatable cylinder 10.
  • the motorized drive roller 31 and the second idle return roller 34 are preferably positioned with respect to the cylinder 10 such that:
  • the aforesaid distance D1 is less than the thickness S of the belt 20 by a value ranging between about 0% and about 50%; the aforesaid distance D2 is greater than the thickness S of the belt 20 by a value between about 0% and about 100%.
  • the aforesaid second idle return roller 34 is movable with respect to the other rollers 31, 32, 33 in order to vary the relative position thereof and allow for:
  • the second idle return roller 34 is movable with respect to the other rollers 31, 32, 33 along a circumferential arc, concentric to the rotation axis of the cylinder 10, between a maximum wrap position of the belt around the cylinder and a minimum wrap position around the cylinder.
  • the second idle return roller 34 is slidably engaged at both of the axial ends thereof with a guide (not shown in the accompanying figures) shaped according to said circumferential arc.
  • the second idle return roller 34 is lockable both in the aforesaid two extreme positions of the aforesaid circumferential arc and in one or more intermediate positions, so as to adjust the extension of said second segment Q2 of the closed path and thus the degree of wrapping of the belt around the cylinder 10.
  • the friction effect of the belt on the hot cylinder may also be improved and decreased precisely due to the decrease in wrap angle. This has a benefit on the result of the compaction process.
  • the locking of the second idle return roller 34 along the aforesaid shaped guide may be achieved by brackets which also include bearings adapted to rotate the roller pin and which are fixable, for example by screws, to the support structure of the apparatus.
  • the fixing of the roller is performed at shoulders suitably perforated in advance along said guide in predetermined angular positions corresponding to the adjustment positions to be provided.
  • the circumferential arc has an extension of 90°.
  • Circumferential arcs of a smaller or lower amplitude according to operational needs may be provided.
  • Adjusting the position of the second idle return roller 34 relative to the cylinder 10 may change the tensioning state of the belt.
  • the apparatus 1 comprises a third idle return roller 35 which engages the belt at the third segment Q3 of the path and is movable with respect to the other rollers 31, 32, 33 in order to compensate for variations in the position of the second idle return roller 34.
  • the third idle return roller 35 is also slidably engaged at both of the axial ends thereof with a suitably shaped guide (not shown in the accompanying figures).
  • the third idle roller 35 may also be fixed and stopped in intermediate positions between two positions of maximum and minimum compensation.
  • the fixing may be achieved by means of brackets that include roller bearings and that will be fastened using screws to the shoulders of the apparatus, suitably perforated at the predetermined positions.
  • the third idle return roller 35 is also not rubberized.
  • the third idle return roller 35 is also provided with a cylindrical side surface, preferably made of a metal material, intended to come into direct contact with the belt 20 without the interposition of a rubber coating covering said cylindrical side surface.
  • the aforesaid belt 10 is elastically deformable in elongation by a percentage of between 5% and 100% of the length thereof in the relaxed state before pretensioning and, preferably in the pretensioned state thereof, by a percentage of between 30% and 50% with respect to the relaxed length thereof.
  • the belt 20 has a thickness S of between about 4.0 mm and about 16.0 mm and, preferably, about 10 mm.
  • the belt 20 may be made of a substantially extensible and elastic material, in particular of natural or synthetic rubber, or combinations thereof.
  • the material may contain additives adapted to improve the mechanical and heat resistance features thereof.
  • the invention allows numerous advantages to be obtained, which have already been described in part.
  • the apparatus for compacting textile substrates by means of an elastic belt according to the invention makes it possible to avoid slippages of the belt with respect to the guide rollers without requiring the rubberized coating of at least one of the guide rollers.
  • the apparatus for compacting textile substrates by means of an elastic belt according to the invention is simple and inexpensive to implement.
  • the apparatus for compacting textile substrates by means of an elastic belt according to the invention is manageable in an operatively simple manner.
  • the apparatus for compacting textile substrates by means of an elastic belt according to the invention makes it possible to reduce the stresses imposed on the elastic belt during use.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP24178497.4A 2023-06-08 2024-05-28 Vorrichtung zum verdichten eines endlosen textilen substrats mittels eines elastischen bandes Active EP4474562B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102023000011733A IT202300011733A1 (it) 2023-06-08 2023-06-08 Apparato di compattazione di un substrato tessile continuo tramite nastro elastico

Publications (2)

Publication Number Publication Date
EP4474562A1 true EP4474562A1 (de) 2024-12-11
EP4474562B1 EP4474562B1 (de) 2026-01-28

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EP (1) EP4474562B1 (de)
ES (1) ES3063412T3 (de)
IT (1) IT202300011733A1 (de)
PT (1) PT4474562T (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB563638A (en) 1943-02-18 1944-08-23 James John Hadfield Improvements in or connected with apparatus for effecting and controlling the shrinkage of textile fabrics
US2374482A (en) 1943-02-18 1945-04-24 Hadfield James John Apparatus for effecting the shrinking or the stretching of textile fabrics
EP1657340A1 (de) 2004-11-15 2006-05-17 Sperotto Rimar S.R.L. Vorrichtung und Verfahren zum Krumpfen von Textilsubstraten
WO2020178670A1 (en) 2019-03-04 2020-09-10 Red Carpet S.R.L. A shrinking machine
WO2020183410A1 (en) 2019-03-13 2020-09-17 Sintec Textile S.R.L. Machine for compacting textile structures of fabrics and corresponding compaction method
EP3754087A1 (de) * 2019-06-17 2020-12-23 Santex Rimar Group S.r.l. Vorrichtung zum verdichten eines endlosen textilbands dank eines elastischen gurts
EP3754088A1 (de) * 2019-06-17 2020-12-23 Santex Rimar Group S.r.l. Vorrichtung zum verdichten eines textilen substrats durch ein elastisches band

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB563638A (en) 1943-02-18 1944-08-23 James John Hadfield Improvements in or connected with apparatus for effecting and controlling the shrinkage of textile fabrics
US2374482A (en) 1943-02-18 1945-04-24 Hadfield James John Apparatus for effecting the shrinking or the stretching of textile fabrics
EP1657340A1 (de) 2004-11-15 2006-05-17 Sperotto Rimar S.R.L. Vorrichtung und Verfahren zum Krumpfen von Textilsubstraten
US20060112526A1 (en) * 2004-11-15 2006-06-01 Sperotto Rimar S.R.I Apparatus and method for shrinking continuous textile substrates
WO2020178670A1 (en) 2019-03-04 2020-09-10 Red Carpet S.R.L. A shrinking machine
WO2020183410A1 (en) 2019-03-13 2020-09-17 Sintec Textile S.R.L. Machine for compacting textile structures of fabrics and corresponding compaction method
EP3754087A1 (de) * 2019-06-17 2020-12-23 Santex Rimar Group S.r.l. Vorrichtung zum verdichten eines endlosen textilbands dank eines elastischen gurts
EP3754088A1 (de) * 2019-06-17 2020-12-23 Santex Rimar Group S.r.l. Vorrichtung zum verdichten eines textilen substrats durch ein elastisches band

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ES3063412T3 (en) 2026-04-16
PT4474562T (pt) 2026-03-11
EP4474562B1 (de) 2026-01-28
IT202300011733A1 (it) 2024-12-08

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