CA1279246C - Stretch control for web materials being joined or laminated - Google Patents
Stretch control for web materials being joined or laminatedInfo
- Publication number
- CA1279246C CA1279246C CA000498591A CA498591A CA1279246C CA 1279246 C CA1279246 C CA 1279246C CA 000498591 A CA000498591 A CA 000498591A CA 498591 A CA498591 A CA 498591A CA 1279246 C CA1279246 C CA 1279246C
- Authority
- CA
- Canada
- Prior art keywords
- tension
- laminating
- stretch
- varying
- master
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 title claims abstract description 134
- 238000010030 laminating Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims description 5
- 238000003475 lamination Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 description 2
- PENWAFASUFITRC-UHFFFAOYSA-N 2-(4-chlorophenyl)imidazo[2,1-a]isoquinoline Chemical compound C1=CC(Cl)=CC=C1C1=CN(C=CC=2C3=CC=CC=2)C3=N1 PENWAFASUFITRC-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/182—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
- B65H23/1825—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations and controlling web tension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1825—Handling of layers or the laminate characterised by the control or constructional features of devices for tensioning, stretching or registration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H39/00—Associating, collating, or gathering articles or webs
- B65H39/16—Associating two or more webs
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D15/00—Control of mechanical force or stress; Control of mechanical pressure
- G05D15/01—Control of mechanical force or stress; Control of mechanical pressure characterised by the use of electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A stretch control device for use with two web materials being laminated comprising a supply roll of a first web material.
Feed rolls deliver the master material past a dancer arm and set of feed rolls with an encoder or tach generator before delivering the master material at a constant tension to a laminating roll where a second material has been delivered of greater elasticity than the master material and having a different modulus of elasticity. The second material is fed over a dancer arm for adjusting the tension on the second material, so that both materials will be equally stretched when they are joined or laminated as in a disposable diaper assembly line.
A stretch control device for use with two web materials being laminated comprising a supply roll of a first web material.
Feed rolls deliver the master material past a dancer arm and set of feed rolls with an encoder or tach generator before delivering the master material at a constant tension to a laminating roll where a second material has been delivered of greater elasticity than the master material and having a different modulus of elasticity. The second material is fed over a dancer arm for adjusting the tension on the second material, so that both materials will be equally stretched when they are joined or laminated as in a disposable diaper assembly line.
Description
1~79~46 This invention relates to a stretch control device for use when laminatinq or joining two strip materials, the modulus of elasticity of one material beinq greater than the other.
In a disposable diaper assembly line, two webs of materials, each of which has a different modulus of elasticity, are fed to means for joining or laminating the web materials. The material having less elasticity or otherwise designated master material is drawn off its supply roll and fed to the laminating means and has a predetermined stretch.
The use of the material having less elasticity as the master material is a desirable compromise which permits a greater range of elasticity in the materials being used without necessitating critical adjustments in the feed of the materials being joined or laminated.
The prior art shows use of control systems to achieve constant tension on individual or all materials to be laminated and required operator skill and careful monitoring of quality of the final laminate. This is disclosed in an article entitled "The Art of Roll to Roll Adhesive Laminating", as published in Converter magazine, December, 1981.
12~79246 Load cells and dancer arms have been used in the past to control the tension on a web being fed as disclosed in United States Patent No. 2,753,128, as well as Japanese Patent No.
44-12163 and British Patent No. 1,371,760.
United States Patent No. 2,627,296 to Secrest dis-closes an apparatus including means for adjusting the tension in a web of fabric.
United States Patent No. 3,239,161 to Dutro et al ; discloses a drive control mechanism which dispenses an elongated web of material with the speed and tension thereof being adjust-able.
The United States Patent No. 3,510,374 to Walker discloses a control apparatus for sensing a property of a moving web and adjusting the moving web so that the desired property is ' ~ uniform throughout the web.
'¦ United States Patent No. 3,107,679 to Pawlowski j discloses an automatic tension control device which utilizes either pneumatic or electrical circuitry to maintain the tension ¦
in a web of material substantially constant.
Ij In United States Patent No. 3,762,125 to Prena, there ¦l is disclosed a device for controlling the lamination of one material onto another material which utilizes a photocell 50, which is responsive to indicia 48 on the film "F" which sends ¦~ the information to a control box 34 of a clutch 39 which controls the stretch rollers 38a and 38b to thereby keep the two webs lined up with one another.
1~7~46 Un1ted ~tates Patent No. 4,34~,g93 to Leonard discloses a tension monitoring and controlling means which includes a controller responsive to outputs of the tension sensing transducer thereof a reference tension selector for controlling torque applied to the tension control roll to thereby control the web tension.
~IU~ AI~ U~ ITII`~
It is, therefore, the primary object of this invention to achieve equal stretch on two materials being laminated or joined as they are pulled off their supply rolls and fed to be laminated.
The invention provides a method of laminating a first or master material and a second material of greater elasticity than the master material which comprises feeding the materials to laminating means and determining the stretch in each material as it is laminated and applying a variation in tension to the second material so that it arrives at the laminating means with substantially the same tension as the master material.
The invention also provides a stretch control device for material to be laminated comprising means for feeding a master material at a fixed tension to laminating means, a supply roll of a second material havlng greater elasticity than the said master material, means for feeding the said second material to the said laminating means, means for measuring and calculating the amount of stretch in each material, and means for varying and applying a calculated tension on the said second material as it is fed to the said laminating means so that the stretch on the second material , will be the same as that on the said master material.
From another aspect, the invention provides laminating apparatus for laminating a master material and a second material, each of unknown modulus of elasticity, including laminating rolls, means for feeding each material along its own flow path to the laminating rolls, and, for each material, in its flow path, tension measuring means, and spaced linear speed measuring means located at different positions in the respective flow path, microprocessor means for receiving at least one tension signal and two linear speed signals for each material from which the modulus of elasticity of each material can be calculated, and means responsive to an output from the microprocessor for varying the tension, and hence the degree of stretch, of said second material to match its stretch to that of the master material at the laminating rolls.
4a ~`..
1'~79246 By way of illustration but not limitation, an embodiment of this invention will be hereinafter described with reference to the drawing, in which:
Figure 1 is a schematic diagram of a stretch control device according to the present invention.
With continuing reference to the accompanying drawing, wherein there is shown a schematic representation of a stretch control device 10 according to the present invention, a supply roll 12 of a master material 14 is provided. The modulus of elasticity of the master material 14 is unknown but the master material 14 is less elastic than a second material 16 to be delivered from its supply roll 18. The modulus of elasticity of material 16 is also unkown.
A friction belt assembly 20 driven by motor 22 is provided for providing initial tension on the master material 14 as it unwinds the master material 14 from the feed roll 12.
The speed of motor 22 is controlled by a microprocessor (computer) 24 as an output 26, based on the position of dancer arm 34.
The master material then passes over roll 28 which may be spring mounted as at 30 from a load cell 32. The master material 14 is fed over an idler roll 32 of adjustable dancer arm 34 which is pivotally mounted at 36. At equilibrium, the 1~'79Z46 tension in the web at 30 is created by the moment of the load on the dancer arm as manually set or controlled by a pneumatic or hydraulic assembly 40 connected to the dancer arm 34. A potentio-meter or rotational sensor 44 measures the position of the dancer arm 34 and provides an input 46 to the micro-processor 24 which is used to determine a speed correction for the unwind motor 22.
The master material 14 is then fed over another roll 50 and then between laminating rolls 52 and 54 where it meets with the web material 16.
The second material 16 is of greater elasticity than the first material and the micro-processor provides for auto-matically controlling the feed system for the second material 16.
These outputs of the micro-processor 24 are readable off the micro-processor portion 58.
An endless belt assembly 60 driven by a motor 62 feeds the material 16 as it is fed from its supply roll 18. The speed of the motor 62 is one of the outputs 64 of the micro-pro-cessor 24 and is automatically controlled by the micro-processor 24. The material 16 is entrained about roll 66 which is connected~
;I to a load cell 68 for measuring tension on material 16. The ten-l sion in material 16 is created by the load necessary to lift the dancer arm to a stable position. The load setting is an output of the micro-processor 24. The material 16 is entrained about the jl idler roll 72 of dancer arm 74, whose position is determined by the amount of material in the machine between the s~pply roll 18 1.
and the first set of rolls 65 and the elasticity of that material for the tension level required to support the dancer arm. The control method for keeping the dancer arm stable or at mid-range is to adjust the unwind motor speed automatically to correct the dancer arm position. For a given material, tension and feed roll setting, there will be only one correct unwind speed at stability. ~he dancer arm is pivotally mounted as at 78 and its position may be monitored by a potentiometer or rotary sensor, or other means. The dancer arm may be of any of the well-known recognized types, such as pivoted vertically or multi-pass units or linearly-transported dancer rolls.
The material 16 is then passed to the laminating rolls 52 and 54 where the material 16 will join the master material 14 with the same stretch thereon so that, when these materials are laminated or joined together, there will be little I
or no warping or breakage and there will be no curling at relaxa-¦
tion after cut-off.
From a consideration of the arrangement of parts, either feed system heretofore described can be used for the master material, the inputs to the micro-processor being set dependent on the system used for the master material. This provides for a greater range of materials since the stretch on the more elastic material can best be adjusted to equal the stretch on the master material as the resulting change in total tension in the laminate of the two webii will be reduced.
~1 I! ~ ~
In a disposable diaper assembly line, two webs of materials, each of which has a different modulus of elasticity, are fed to means for joining or laminating the web materials. The material having less elasticity or otherwise designated master material is drawn off its supply roll and fed to the laminating means and has a predetermined stretch.
The use of the material having less elasticity as the master material is a desirable compromise which permits a greater range of elasticity in the materials being used without necessitating critical adjustments in the feed of the materials being joined or laminated.
The prior art shows use of control systems to achieve constant tension on individual or all materials to be laminated and required operator skill and careful monitoring of quality of the final laminate. This is disclosed in an article entitled "The Art of Roll to Roll Adhesive Laminating", as published in Converter magazine, December, 1981.
12~79246 Load cells and dancer arms have been used in the past to control the tension on a web being fed as disclosed in United States Patent No. 2,753,128, as well as Japanese Patent No.
44-12163 and British Patent No. 1,371,760.
United States Patent No. 2,627,296 to Secrest dis-closes an apparatus including means for adjusting the tension in a web of fabric.
United States Patent No. 3,239,161 to Dutro et al ; discloses a drive control mechanism which dispenses an elongated web of material with the speed and tension thereof being adjust-able.
The United States Patent No. 3,510,374 to Walker discloses a control apparatus for sensing a property of a moving web and adjusting the moving web so that the desired property is ' ~ uniform throughout the web.
'¦ United States Patent No. 3,107,679 to Pawlowski j discloses an automatic tension control device which utilizes either pneumatic or electrical circuitry to maintain the tension ¦
in a web of material substantially constant.
Ij In United States Patent No. 3,762,125 to Prena, there ¦l is disclosed a device for controlling the lamination of one material onto another material which utilizes a photocell 50, which is responsive to indicia 48 on the film "F" which sends ¦~ the information to a control box 34 of a clutch 39 which controls the stretch rollers 38a and 38b to thereby keep the two webs lined up with one another.
1~7~46 Un1ted ~tates Patent No. 4,34~,g93 to Leonard discloses a tension monitoring and controlling means which includes a controller responsive to outputs of the tension sensing transducer thereof a reference tension selector for controlling torque applied to the tension control roll to thereby control the web tension.
~IU~ AI~ U~ ITII`~
It is, therefore, the primary object of this invention to achieve equal stretch on two materials being laminated or joined as they are pulled off their supply rolls and fed to be laminated.
The invention provides a method of laminating a first or master material and a second material of greater elasticity than the master material which comprises feeding the materials to laminating means and determining the stretch in each material as it is laminated and applying a variation in tension to the second material so that it arrives at the laminating means with substantially the same tension as the master material.
The invention also provides a stretch control device for material to be laminated comprising means for feeding a master material at a fixed tension to laminating means, a supply roll of a second material havlng greater elasticity than the said master material, means for feeding the said second material to the said laminating means, means for measuring and calculating the amount of stretch in each material, and means for varying and applying a calculated tension on the said second material as it is fed to the said laminating means so that the stretch on the second material , will be the same as that on the said master material.
From another aspect, the invention provides laminating apparatus for laminating a master material and a second material, each of unknown modulus of elasticity, including laminating rolls, means for feeding each material along its own flow path to the laminating rolls, and, for each material, in its flow path, tension measuring means, and spaced linear speed measuring means located at different positions in the respective flow path, microprocessor means for receiving at least one tension signal and two linear speed signals for each material from which the modulus of elasticity of each material can be calculated, and means responsive to an output from the microprocessor for varying the tension, and hence the degree of stretch, of said second material to match its stretch to that of the master material at the laminating rolls.
4a ~`..
1'~79246 By way of illustration but not limitation, an embodiment of this invention will be hereinafter described with reference to the drawing, in which:
Figure 1 is a schematic diagram of a stretch control device according to the present invention.
With continuing reference to the accompanying drawing, wherein there is shown a schematic representation of a stretch control device 10 according to the present invention, a supply roll 12 of a master material 14 is provided. The modulus of elasticity of the master material 14 is unknown but the master material 14 is less elastic than a second material 16 to be delivered from its supply roll 18. The modulus of elasticity of material 16 is also unkown.
A friction belt assembly 20 driven by motor 22 is provided for providing initial tension on the master material 14 as it unwinds the master material 14 from the feed roll 12.
The speed of motor 22 is controlled by a microprocessor (computer) 24 as an output 26, based on the position of dancer arm 34.
The master material then passes over roll 28 which may be spring mounted as at 30 from a load cell 32. The master material 14 is fed over an idler roll 32 of adjustable dancer arm 34 which is pivotally mounted at 36. At equilibrium, the 1~'79Z46 tension in the web at 30 is created by the moment of the load on the dancer arm as manually set or controlled by a pneumatic or hydraulic assembly 40 connected to the dancer arm 34. A potentio-meter or rotational sensor 44 measures the position of the dancer arm 34 and provides an input 46 to the micro-processor 24 which is used to determine a speed correction for the unwind motor 22.
The master material 14 is then fed over another roll 50 and then between laminating rolls 52 and 54 where it meets with the web material 16.
The second material 16 is of greater elasticity than the first material and the micro-processor provides for auto-matically controlling the feed system for the second material 16.
These outputs of the micro-processor 24 are readable off the micro-processor portion 58.
An endless belt assembly 60 driven by a motor 62 feeds the material 16 as it is fed from its supply roll 18. The speed of the motor 62 is one of the outputs 64 of the micro-pro-cessor 24 and is automatically controlled by the micro-processor 24. The material 16 is entrained about roll 66 which is connected~
;I to a load cell 68 for measuring tension on material 16. The ten-l sion in material 16 is created by the load necessary to lift the dancer arm to a stable position. The load setting is an output of the micro-processor 24. The material 16 is entrained about the jl idler roll 72 of dancer arm 74, whose position is determined by the amount of material in the machine between the s~pply roll 18 1.
and the first set of rolls 65 and the elasticity of that material for the tension level required to support the dancer arm. The control method for keeping the dancer arm stable or at mid-range is to adjust the unwind motor speed automatically to correct the dancer arm position. For a given material, tension and feed roll setting, there will be only one correct unwind speed at stability. ~he dancer arm is pivotally mounted as at 78 and its position may be monitored by a potentiometer or rotary sensor, or other means. The dancer arm may be of any of the well-known recognized types, such as pivoted vertically or multi-pass units or linearly-transported dancer rolls.
The material 16 is then passed to the laminating rolls 52 and 54 where the material 16 will join the master material 14 with the same stretch thereon so that, when these materials are laminated or joined together, there will be little I
or no warping or breakage and there will be no curling at relaxa-¦
tion after cut-off.
From a consideration of the arrangement of parts, either feed system heretofore described can be used for the master material, the inputs to the micro-processor being set dependent on the system used for the master material. This provides for a greater range of materials since the stretch on the more elastic material can best be adjusted to equal the stretch on the master material as the resulting change in total tension in the laminate of the two webii will be reduced.
~1 I! ~ ~
Claims (13)
1. A method of laminating a first or master material and a second material of greater elasticity than the master material which comprises feeding the materials to laminating means and determining the stretch in each material as it is laminated and applying a variation in tension to the second material so that it arrives at the laminating means with substantially the same tension as the master material.
2. A method as claimed in Claim 1 in which the master material is fed to the laminating means at a fixed tension.
3. A method as claimed in Claim 1 or Claim 2 which comprises drawing the first material off a source of supply and applying a controlled resistance to said drawing off so as to stretch the first material by a controlled variable amount, and in which the length of the first material per unit of time is measured as it passes a first location spaced from the point of lamination and its length per unit of time is measured again as it is laminated, and the tension on the first material is measured at second and third locations on either side of the first location so that in its passage to the laminating means the first material passes the second location, then the first location and then the third location, and the values of length per unit of time and tension of the first material, together with a calculated degree of stretch of the second material at the laminating means are used to compute what variation in stretch in the first material is needed to make its stretch when laminated substantially the same as that of the second material and the resistance to drawing off is varied so as to produce any necessary change in stretch of the first material.
4. A stretch control device for material to be laminated comprising means for feeding a master material at a fixed tension to laminating means, a supply roll of a second material having greater elasticity than the said master material, means for feeding the said second material to the said laminating means, means for measuring and calculating the amount of stretch in each material, and means for varying and applying a calculated tension on the said second material as it is fed to the said laminating means so that the stretch on the second material will be the same as that on the said master material.
5. A stretch control device as claimed in Claim 4, including micro-processor means for providing an output for setting the said means for varying and applying tension on the said second material.
6. A stretch control device as claimed in Claim 4, in which the said means for varying and applying tension to the said second material is a movably mounted dancer arm about which the said second material is entrained.
7. A stretch control device as claimed in Claim 4, 5 or 6 in which the said means for varying and applying tension to the said second material is a movably mounted dancer arm about which the said second material is entrained, and means for varying the position of the said dancer arm.
8. A stretch control device as claimed in Claim 4, 5 or 6 including micro-processor means for providing an output for setting the said means for varying and applying tension to the said second material, the said means for varying and applying tension to said second material including a movably mounted dancer arm about which the said second material is entrained, and means for varying the position of the said dancer arm according to an output from the said micro-processor means.
9. Laminating apparatus for laminating a master material and a second material, each of unknown modulus of elasticity, including laminating rolls, means for feeding each material along its own flow path to the laminating rolls, and, for each material, in its flow path, tension measuring means, and spaced linear speed measuring means located at different positions in the respective flow path, microprocessor means for receiving at least one tension signal and two linear speed signals for each material from which the modulus of elasticity of each material can be calculated, and means responsive to an output from the microprocessor for varying the tension, and hence the degree of stretch, of said second material to match its stretch to that of the master material at the laminating rolls.
10. Laminating apparatus as claimed in Claim 9, in which the said means for varying and adjusting the tension on the said second material include a movably mounted dancer arm about which the said material is entrained
11. Laminating apparatus as claimed in Claim 9 in which the said means for varying and adjusting the tension on the said second material include a movably mounted dancer arm about which the said second material is entrained, and pneumatic means for adjusting the position of the said dancer arm.
12. Laminating apparatus as claimed in Claim 9, 10 or 11 in which the said means for varying the tension on the said second material includes an endless belt engaging a feed roll for the second material, and a motor for driving the said endless belt.
13. Laminating apparatus as claimed in Claim 9, 10 or 11 in which the said means for varying and adjusting the tension on the said second material include a movably mounted dancer arm about which the said second material is entrained, and pneumatic means for adjusting the load on the said dancer arm, the said means for varying the tension on the said second material further including endless belt means engaging a feed roll of the said second material thereby applying a variable initial tension on the said second material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68658084A | 1984-12-27 | 1984-12-27 | |
| US686,580 | 1984-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1279246C true CA1279246C (en) | 1991-01-22 |
Family
ID=24756901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000498591A Expired - Lifetime CA1279246C (en) | 1984-12-27 | 1985-12-24 | Stretch control for web materials being joined or laminated |
Country Status (6)
| Country | Link |
|---|---|
| AU (1) | AU581716B2 (en) |
| BE (1) | BE903957A (en) |
| CA (1) | CA1279246C (en) |
| FR (1) | FR2575450B1 (en) |
| GB (1) | GB2170486B (en) |
| IT (1) | IT1208727B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2587983B1 (en) * | 1985-10-02 | 1993-02-05 | Colgate Palmolive Co | DEVICE FOR MAINTAINING A RANGE OF VOLTAGES ON TWO DIFFERENT MATERIALS, PARTICULARLY THE TWO SHEETS OF A BABY LAYER |
| SE9203007D0 (en) * | 1992-10-13 | 1992-10-13 | Tetra Alfa Holdings | MAKE MANUFACTURING PACKAGING MATERIAL IN THE FORM OF A CONNECTIVE LAMINATE COAT |
| CA2146495C (en) * | 1994-04-08 | 2006-06-27 | Len C. Decandia | Method for making an elastic adhesive bandage |
| US5818719A (en) * | 1995-12-29 | 1998-10-06 | Kimberly-Clark, Worldwide, Inc. | Apparatus for controlling the registration of two continuously moving layers of material |
| DE59703753D1 (en) * | 1996-04-29 | 2001-07-19 | Weissenfluh Hawe Neos | Process for connecting a metal foil to a plastic foil |
| US5930139A (en) * | 1996-11-13 | 1999-07-27 | Kimberly-Clark Worldwide, Inc. | Process and apparatus for registration control of material printed at machine product length |
| US5932039A (en) * | 1997-10-14 | 1999-08-03 | Kimberly-Clark Wordwide, Inc. | Process and apparatus for registering a continuously moving, treatable layer with another |
| US6092002A (en) * | 1996-11-13 | 2000-07-18 | Kimberly-Clark Worldwide, Inc. | Variable tension process and apparatus for continuously moving layers |
| AU717491B2 (en) * | 1996-11-13 | 2000-03-30 | Kimberly-Clark Worldwide, Inc. | Process and apparatus for registering a continuously moving, treatable layer with another layer |
| US5964970A (en) * | 1997-10-14 | 1999-10-12 | Kimberly-Clark Worldwide, Inc. | Registration process and apparatus for continuously moving elasticized layers having multiple components |
| US6033502A (en) | 1996-11-13 | 2000-03-07 | Kimberly-Clark Worldwide, Inc. | Process and apparatus for registering continuously moving stretchable layers |
| DE19804735B4 (en) * | 1998-02-06 | 2006-06-29 | Windmöller & Hölscher Kg | Method and device for aligning two webs brought together into a multilayer web |
| US6652686B1 (en) | 1999-02-08 | 2003-11-25 | Kimberly-Clark Worldwide, Inc. | Processes and apparatus for making disposable absorbent articles |
| US6986820B2 (en) | 2000-01-21 | 2006-01-17 | Kimberly-Clark Worldwide, Inc. | Processes and apparatus for making disposable absorbent articles |
| DE102009052462A1 (en) * | 2009-11-09 | 2011-05-12 | Robert Bosch Gmbh | Method for operating a winder device |
| EP3392029B1 (en) * | 2017-04-21 | 2022-01-05 | Held Technologie GmbH | Feeding device for a double belt press, double belt press system and method of operation |
| CN108996301A (en) * | 2018-09-05 | 2018-12-14 | 刘路清 | A kind of laminated film traction device for book film sealing machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3335928A (en) * | 1965-06-09 | 1967-08-15 | Hurletron Inc | Control of web elongation |
| US3762125A (en) * | 1971-03-17 | 1973-10-02 | Morrell & Co John | Film registration apparatus |
| DE2256882C3 (en) * | 1972-11-20 | 1978-04-06 | Albert-Frankenthal Ag, 6710 Frankenthal | Control device before the entry into a processing machine that pulls the paper web |
| NZ190690A (en) * | 1978-06-21 | 1981-03-16 | Johnson & Johnson | Production of absorbent facing material |
| FR2458501B1 (en) * | 1979-06-08 | 1986-03-21 | Astin France | DEVICE FOR REGULATING THE TENSION OF A TRAVELING BELT |
| US4347993A (en) * | 1979-11-06 | 1982-09-07 | W. J. Industries, Incorporated | Tension monitor means and system |
| JPS58220039A (en) * | 1982-06-15 | 1983-12-21 | Toyo Shokuhin Kikai Kk | Material feeding control system |
-
1985
- 1985-12-19 IT IT8548960A patent/IT1208727B/en active
- 1985-12-24 CA CA000498591A patent/CA1279246C/en not_active Expired - Lifetime
- 1985-12-24 FR FR8519172A patent/FR2575450B1/en not_active Expired
- 1985-12-24 GB GB08531733A patent/GB2170486B/en not_active Expired
- 1985-12-24 AU AU51708/85A patent/AU581716B2/en not_active Ceased
- 1985-12-30 BE BE0/216075A patent/BE903957A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IT1208727B (en) | 1989-07-10 |
| IT8548960A0 (en) | 1985-12-19 |
| GB8531733D0 (en) | 1986-02-05 |
| GB2170486A (en) | 1986-08-06 |
| AU5170885A (en) | 1986-07-03 |
| BE903957A (en) | 1986-06-30 |
| AU581716B2 (en) | 1989-03-02 |
| FR2575450A1 (en) | 1986-07-04 |
| FR2575450B1 (en) | 1988-10-14 |
| GB2170486B (en) | 1988-09-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |