Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
  • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
  • B31F2201/07—Embossing
  • B31F2201/0707—Embossing by tools working continuously
  • B31F2201/0715—The tools being rollers
  • B31F2201/0723—Characteristics of the rollers
  • B31F2201/0733—Pattern
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
  • B31F2201/07—Embossing
  • B31F2201/0707—Embossing by tools working continuously
  • B31F2201/0715—The tools being rollers
  • B31F2201/0723—Characteristics of the rollers
  • B31F2201/0738—Cross sectional profile of the embossments
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
  • B31F2201/07—Embossing
  • B31F2201/0707—Embossing by tools working continuously
  • B31F2201/0715—The tools being rollers
  • B31F2201/0741—Roller cooperating with a non-even counter roller
  • B31F2201/0743—Roller cooperating with a non-even counter roller having a matching profile
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
  • B31F2201/07—Embossing
  • B31F2201/0756—Characteristics of the incoming material, e.g. creped, embossed, corrugated
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
  • B31F2201/07—Embossing
  • B31F2201/0758—Characteristics of the embossed product
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24628—Nonplanar uniform thickness material
  • Y10T428/24736—Ornamental design or indicia

Definitions

• the present invention relates to a device for embossing and / or satinizing flat material, in particular packaging films, and to packaging films produced with the device.
• a device for embossing and / or satinizing flat material in particular packaging films
• packaging films produced with the device is known for example from EP-B-925 911 by the same applicant.
• the device for satinizing a film described therein which is based on the findings of earlier patents by the same applicant, contains two very rollers which are arranged such that they can move with respect to one another in such a way that a self-stabilizing effect occurs when the teeth of the embossing rollers interlock, resulting in a high throughput speed on the one hand and a great precision is achieved on the other hand. Above all, this creates an even satin finish and, with appropriate machining of teeth, a very precise embossing of foils.
• EP-A2-0 194 042 discloses an embossed object, on the substrate of which first and second non-light-diffractive relief elements are embossed, which define first and second patterns and where the patterns reflect uniformly and their view changes when the viewing angle changes , Only line patterns are mentioned in the description and no satin finish is provided.
• the desire and the need and thus the object of the present invention has developed to provide a device for producing embossments which have characters with location and / or light source-dependent on the flat material characterizes optical effects, which also make it possible to create security features that are very difficult to copy.
• the one with this device The packaging film produced should also have a satin finish in addition to the characters.
• a packaging film embossed with such a device is defined in claim 10.
• FIG. 1 shows a schematic representation of the development of a conventional toothing of a satinizing roller
• FIG. 2 shows the stable engagement position of conventional toothing of two satinizing rollers
• FIG. 3 shows a conventional toothing on an enlarged scale
• FIG. 4 shows a toothing according to the invention on the same scale as in FIG. 3,
• FIG. 5 shows the stable engagement position of the toothing of two satinizing rollers according to the invention
• FIGS. 6A-6F show the effect of a special embossing according to the invention using a character
• Figure 7 shows a possible arrangement of several embossed characters.
• a film tape is carried out between two toothed satinizing rollers, one of which is fixed and driven, while the other is freely rotatable on an axis and can be pressed against the driven roller by spring force, pneumatically or in any other way with adjustable pressure.
• both satinizing rollers have a similar surface toothing, which is shown schematically in FIG. 1 in development.
• These are pyramid-shaped teeth which are arranged in rows in the circumferential direction or in the direction of rotation indicated by the arrow and at right angles in the axial direction.
• the tooth tips are flattened, in practice this reduction is at least 2%, preferably up to 25% of the theoretical geometric tooth height.
• the edges of the pyramid-shaped or truncated pyramid-shaped teeth are expediently broken.
• conical or frustoconical teeth can also be used.
• the rollers have a relative axial play of at least half a tooth pitch, preferably 0.75 times the tooth pitch, as a result of which they are mutually displaceable so that they can move each other into a stable position.
• teeth T1 can be seen, which are designed like the teeth according to FIGS. 1-3, all of which have the same geometric dimensions and produce a normal satin finish, and on the left in FIG. 4, teeth T2, for example one have a lower tooth height, but could also have different tooth flanks or a different surface. With the previously known embossing, the place where the characters are to appear on the film is completely removed.
• the teeth T2 can be arranged with a different height, shape or surface than the teeth T1, but it will be advantageous to choose the teeth T2 in a specific arrangement in order to produce patterns, letters or other characters.
• Figure 4 is a simple arrangement shown, which results for example in the letter L.
• this letter is generated in such a way that, depending on the viewing angle, a high to low contrast, or a high or low intensity, is obtained, it being assumed here that the illumination source is constant and the same Place. Otherwise, the location and / or wavelength of the illumination source can be varied and the viewer can always view the sign from the same angle, or both
• the viewing angle and the light source change. In principle, the result is always the same, the appearance of the sign changes when one or both or all parameters are changed.
• FIGS. 6A, B, C the respective viewer is designated with a "0", the arrow indicating the viewing angle and the viewer looking at a satinized film with a shadow-embossed L, from the top right, from above or from the left, positions 6A , B, C, whereby the contrast is high according to 6D, low according to 6E and medium according to 6F. This requires constant lighting.
• FIG. 7 shows, for example, how it is possible to arrange groups of characters differently in order to combine different features or to produce certain encodings. From FIG. 7 it can be seen that, with a certain viewing angle and an exposure LS from a certain location, the letter “L”, depending on the position, is weak, M above and right, very weak, N right above, medium, P below and left and completely strong, Q appears at the bottom left. As shown in FIG. 6, the appearance of a character changes when the viewing angle changes, but also when the angle changes Illumination source in terms of location and type of exposure, brightness and wavelength.
• Cigarettes, food, chocolate, medication or the like. be attached.
• Such packaging tapes or foils consist primarily of aluminum or predominantly of easy-to-fold paper.
• the material to be embossed has been used for environmental reasons further developed that the media to be embossed, including metallized paper, with a simultaneous reduction in the metallized layer thickness have a strong grain such that the favorable folding behavior has deteriorated sustainably.
• This can also be the case if a plastic base is used instead of paper, or if a plastic coating with a similar effect is used instead of a metallization.
• a distinction is currently made between a multilayer film with a paper base and a layer of metal and a film with a vapor-deposited, thin metallization layer.
• This arrangement can be changed such that the embossing does not emboss the same pattern, but rather the embossing mentioned above with optical effects is obtained by having teeth with different geometrical dimensions and / or a different surface design on or on one or more of the at least three Embossing rollers are arranged.
• This application also states that the embossing rollers can be synchronized with one another via synchronization means, and the present invention is not restricted to embossing rollers, one of which is mounted in such a way that it is in the longitudinal direction of the axis and / or in the pressing direction and / or in the direction of the material to be embossed can be deflected to enable self-synchronization.
• one tooth of one roller does not necessarily have to engage between four adjacent teeth of the other roller, as in FIG. 3, where the case of the so-called pinup-pinup configuration is shown, in which the teeth of all rollers point outwards.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
• Shaping Of Tube Ends By Bending Or Straightening (AREA)
• Laminated Bodies (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=4567126

Family Applications (1)

Country Status (14)

Cited By (3)

Families Citing this family (54)

Citations (3)

Family Cites Families (18)

• 2001
  • 2001-10-03 CA CA2425536A patent/CA2425536C/fr not_active Expired - Lifetime
  • 2001-10-03 BR BRPI0114606-8A patent/BR0114606B1/pt not_active IP Right Cessation
  • 2001-10-03 ES ES01969123T patent/ES2266253T3/es not_active Expired - Lifetime
  • 2001-10-03 CN CNB01817258XA patent/CN1212923C/zh not_active Expired - Lifetime
  • 2001-10-03 JP JP2002534069A patent/JP3944078B2/ja not_active Expired - Lifetime
  • 2001-10-03 US US10/398,900 patent/US7036347B2/en not_active Expired - Lifetime
  • 2001-10-03 RU RU2003109623/12A patent/RU2375191C2/ru not_active IP Right Cessation
  • 2001-10-03 AU AU2001289469A patent/AU2001289469B2/en not_active Expired
  • 2001-10-03 AT AT01969123T patent/ATE330785T1/de active
  • 2001-10-03 AU AU2001289469A patent/AU2001289469B9/en not_active Expired
  • 2001-10-03 PT PT01969123T patent/PT1324877E/pt unknown
  • 2001-10-03 EP EP01969123A patent/EP1324877B1/fr not_active Expired - Lifetime
  • 2001-10-03 DE DE50110279T patent/DE50110279D1/de not_active Expired - Lifetime
  • 2001-10-03 WO PCT/CH2001/000594 patent/WO2002030661A1/fr not_active Ceased
• 2003
  • 2003-03-18 ZA ZA200302203A patent/ZA200302203B/en unknown

Patent Citations (3)

Non-Patent Citations (2)

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