Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C5/00—Processes for producing special ornamental bodies
  • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
  • B44C1/20—Applying plastic materials and superficially modelling the surface of these materials
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44F—SPECIAL DESIGNS OR PICTURES
  • B44F7/00—Designs imitating three-dimensional effects

Definitions

• the invention relates to a process for the production of colored flat decorative materials.
• decorative coating or cladding materials there is a constant need for new types
• a structuring negative material is selected, the surface of which is molded in the later process and gives the resulting material its surface structure.
• the negative material is provided with a thin separating layer, and then at least one curable resin layer containing pigment and / or dye is applied. After the resin layer has hardened, the product is detached from the negative material.
• a platelet-shaped effect pigment is used as the pigment, whereby particularly attractive color effects can be achieved.
• the invention therefore relates to a process for the production of colored flat decorative materials, with a structuring
• Negative material a separating layer and at least one pigment and / or dye-containing curable resin layer is applied, and after curing the resin layer is detached from the negative material, and wherein at least one of the resin layers contains a platelet-shaped effect pigment.
• the invention also relates to the products produced by the process, such as, in particular, decorative panels or tiles. Some preferred embodiments of the method according to the invention are shown in the drawings.
• Figure 1 shows the basic principle of the present invention, wherein a structuring negative material (1) is provided with a separating layer (2) and a pigment-containing curable resin layer (3).
• a preferred negative material (1) is glass, with which very smooth surfaces can be achieved on the one hand, but surfaces with a different structure can also be achieved by selecting appropriate structural glasses. In principle, however, any dimensionally stable and therefore moldable material can be used, the selection being based solely on the desired surface structure. Examples of this are stone slabs, e.g. Slate, wood, metal, plastic and the like. In order to achieve a particularly smooth and flawless surface, crystal mirror glass is preferably used as the negative material, which is used well cleaned and degreased.
• a thin separating layer (2) is applied to the negative material, the sole function of which is to prevent the resin layer (3) applied later from sticking to the negative material (1).
• a wax-like material is therefore preferably used, which does not bond with the negative material or the resin layer and, after the process has ended, can be liquefied, for example by heating, to such an extent that the cured product can be easily separated off.
• Wax-like substances of this type are known to the person skilled in the art and can be found, for example, in the area of paraffins or silicones. However, fluorinated hydrocarbons such as tetrafluoropolyethylene are also suitable. If a very smooth surface is to be achieved, the separation layer must also be applied very carefully.
• the wax used for this purpose is preferably applied in several, for example 3-5, layers, each time the wax is allowed to harden for some time, for example 1-10 hours, and then picked up and smoothed with polishing cotton.
• the pigmented and possibly dye-containing resin layer (3) can in principle be applied immediately.
• a protective layer (7) is first applied, which is advantageously designed to be clearly transparent.
• the same curable resin as the material used for the subsequent layer is preferably used for this purpose.
• a small proportion, for example about 0.1-1%, of an internal separating wax can be added to this resin.
• the pigmented and possibly dye-containing resin layer (3) is applied.
• Any color decorations can be produced by selecting, distributing and, if necessary, combining pigments and dyes.
• all single- or multicomponent resins can be used as resins which can be solidified by thermal, radiation curing or other curing and which are in a pourable or spreadable state for at least some time.
• Suitable resins are e.g. Polyesters, epoxy resins or vinyl esters, e.g. based on acrylates and / or methacrylates.
• This resin is mixed with suitable pigments and / or dyes before or during processing.
• the pigments and / or dyes can be distributed uniformly in the resin layer, but it is also possible to display color structures in addition to the surface structures due to uneven distribution.
• the resin layer can be applied in one operation or in several steps, if necessary with intermediate hardening of the layer applied in each case. If several layers of resin are applied, they can be colored or pigmented differently if necessary. For example, a pigmented resin layer can be applied first, followed by a colored layer.
• platelet-shaped effect pigments such as, for example, metal flakes, platelet-shaped metal oxides, phthalocyanines and in particular the metal oxide-mica pigments known as pearlescent pigments.
• Iriodin® are natural mica platelets which are coated with a thin metal oxide layer. Light refraction and multiple reflection at the phase boundaries of this multilayer pigment lead to interference effects depending on the viewing angle and, depending on the size of the platelets, to more or less pronounced gloss effects.
• a more or less pronounced body color can also contribute to the effect.
• the proportion of pigments and / or dyes in the resin layer depends essentially on the desired effect, but is generally in the range from about 1 to about 20% by weight.
• the individual resin layers generally have a thickness of approximately 0.5 to approximately 2 mm, in particular approximately 0.5 to approximately 1.5 mm. If several layers are applied, a total thickness of about 2-3 mm is generally not exceeded, although the method itself does not impose any limits on the user.
• the resin layer After the resin layer has hardened, it can be detached from the negative material and is therefore already usable as a more or less flexible film. However, the resin layer is preferably bonded to further layers or elements, depending on the desired area of use. Some of these refinements of the method according to the invention are shown in FIGS. 2 to 6.
• (4) denotes an additional lamination layer, that of the resin layer an additional stabilization or strength gives.
• a glass fiber reinforced polyester resin can serve as the lamination.
• Other examples of this are familiar to the person skilled in the art.
• Adhesive layer (5) is connected to the resin layer (3).
• the core consisting of wood, metal, plastic, gypsum or synthetic composite materials has the task of giving the product the material properties necessary for certain applications and can be selected practically as desired depending on the desired properties.
• the functional properties of the product can be designed as desired, e.g. in the direction of fire protection or heat or sound insulation or for setting desired thicknesses or strengths.
• the core material itself is not dimensionally stable or, e.g. for wood, due to external influences, e.g. Moisture absorption, can deform, it is advisable to stabilize the core material (6) by means of lamination layers (4) applied on both sides, as shown in Fig. 4.
• FIG. 5 shows an embodiment which is constructed symmetrically and in which a core material (6) is provided on both sides with a resin layer (3), so that in this arrangement a product having color and structure effects on both sides is formed.
• a protective layer (7) as shown for example in Figure 6, can be very advantageous.
• This protective layer which in turn can consist of a hardenable lacquer or resin, is applied directly to the separating layer (2) and molds the structure of the negative material. This protective layer provides after the product has been detached from the
• Negative material is the surface of the product and is therefore preferably colorlessly transparent.
• the type of application of the individual layers or materials is known per se to the person skilled in the art. In particular with liquid materials, this can e.g. by brushing, rolling, spraying, dipping or pouring.
• the products produced by the process according to the invention can be processed using all customary processes, such as Machining saws, cutting, milling, drilling and other shaping processes and can therefore be used in a practically unlimited number of ways.

Landscapes

• Laminated Bodies (AREA)
• Chemical And Physical Treatments For Wood And The Like (AREA)
• Coating By Spraying Or Casting (AREA)
• Glass Compositions (AREA)
• Treatment And Processing Of Natural Fur Or Leather (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6517623

Family Applications (1)

Country Status (8)

Cited By (2)

Families Citing this family (1)

Citations (4)

• 1995
  • 1995-04-28 WO PCT/EP1995/001619 patent/WO1995030553A1/de active IP Right Grant
  • 1995-04-28 DE DE59502837T patent/DE59502837D1/de not_active Expired - Fee Related
  • 1995-04-28 JP JP7528650A patent/JPH10500367A/ja active Pending
  • 1995-04-28 CN CN95192962A patent/CN1147792A/zh active Pending
  • 1995-04-28 AU AU24090/95A patent/AU2409095A/en not_active Abandoned
  • 1995-04-28 BR BR9507612A patent/BR9507612A/pt unknown
  • 1995-04-28 AT AT95917977T patent/ATE168332T1/de not_active IP Right Cessation
  • 1995-04-28 EP EP95917977A patent/EP0758958B1/de not_active Expired - Lifetime

Patent Citations (4)

Also Published As

Similar Documents

Legal Events