The present invention relates to a layered product which is suitable for use being digitally printed, a surface-covering material comprising such a printed layered product, and to a method of manufacturing a surface-covering material using the layered product.
There is a general desire to improve the appearance of the materials used to cover the internal surfaces of buildings such as their floors, ceilings, and walls in order to provide a better environment for the users or inhabitants of the buildings. Digitally printed images provide particular improvements to the appearance of such materials as the product may be personalised to the end user and in the production process as in analogue printing, plates need to be regularly replaced with some variation in the printed product.
Currently, it is not straightforward to incorporate digital printing into conventional continuous production lines for a surface covering material for the following reasons:
Therefore, there is a problem about how to incorporate a digitally printed image into a surface-covering material without having to invest in heavy lifting and rolling equipment whilst still having a stable substrate on which the image can be printed without distortion of the image due to variations in its surface. Printing on the surface of a finished piece of surface covering material would not give a durable image. Therefore, the printed image needs to be encapsulated inside the surface-covering construction. This requires that a layered product has an image printed on to it and is then processed to apply a wear layer on top of the image. To do so requires a sufficiently long length of layered product to make the process efficient. The base layer of a surface-covering material is typically thicker and heavier than the wear layer e.g. in a 2 mm floor-covering product the base layer would be 1.2-1.7 mm thick.
A way of ameliorating these problems has been sought.
According to the invention there is provided a lightweight layered product for use in a digital printing process wherein the layered product consists essentially of:
According to the invention there is also provided a lightweight printed layered product which comprises which comprises:
According to the invention there is further provided a surface-covering material comprising a wear layer comprising a clear plastics material and a lightweight printed layered product according to the invention wherein the wear layer is arranged on an upper surface of the decorative layer of the printed layered product.
According to the invention there is also provided a method of preparing a printed layered product which method comprises the following steps:
According to the invention there is further provided a method of preparing a surface-covering material which method comprises a step of applying a wear layer to the printed layered product.
According to the invention there is also provided a method of preparing a floor-covering material which method comprises the following steps:
According to the invention there is further provided a roll of a lightweight layered product for use in a digital printing process wherein the roll comprises a roll core and the layered product which consists essentially of:
According to the invention there is also provided a roll of a lightweight printed layered product wherein the roll comprises a roll core and the printed layered product which comprises:
Advantages of the invention include that the layered product is lightweight as it consists essentially of a base layer and a pigmented printing layer. A lightweight layered product may simply be handled in a factory on a roll without the need for expensive heavy lifting or rolling equipment to prepare a finished surface-covering product. Additionally, the reinforcing base layer provides the layered product with dimensional stability such that the layered product is suitable for being printed on without distortion of any printed image. Furthermore, use of the layered product according to the invention minimises the thickness of a roll of the layered product. Use of the layered product according to the invention also maximises its print length for a pre-defined roll thickness and/or roll weight.
It should be understood that the lightweight layered product consists essentially of a reinforcing base layer and a printing layer such that the lightweight layered product may include an additional component or layer other than the essential layers of the layered product if they do not substantially change the weight and/or thickness of the layered product such that it is suitable for being wound onto a jumbo roll. For example, the base layer and/or the printing layer may comprise or be formed from a plurality of layers. In some embodiments, the lightweight layered product consists of the reinforcing base layer and the printing layer.
In some embodiments, the reinforcing base layer comprises a scrim layer impregnated with a gelled plastic material. In some embodiments, the support may be a film and/or a non-woven fabric. In some embodiments, the support may be a polymeric film (e.g. a polyester film) and/or may be formed from one or more fibres which include glass-fibre, vinylon fibre, high-density polyethylene fibre, aramid fibre, carbon fibre, cellulose, and/or polyester fibre; for example, a cellulose/polyester support reinforced with a 32 tex glass crennette. In some embodiments, the gelled plastic material may comprise one or more of the following polymers: PVC, polyvinyl butyral (PVB), polylactic acid (PLA), polyester, a polyolefin, a thermoplastic elastomer and/or polyacrylate.
In some embodiments, the lightweight printed layered product may consist essentially of: a reinforcing base layer having a support; a printing layer suitable for receiving a print design; and a decorative layer having a printed design wherein the decorative layer is provided on an upper surface of the printing layer. In some embodiments, the lightweight printed layered product may consist of: a reinforcing base layer having a support; a printing layer suitable for receiving a print design; and a decorative layer having a printed design wherein the decorative layer is provided on an upper surface of the printing layer.
In some embodiments, the printing layer may be suitable for receiving a printed design or having a printed design applied to it by a digital printer. In some embodiments, the printing layer may have a pigment which is suitable for providing a background to a printed design where such a pigment may have a similar or contrasting colour to one or more colours in the printed design. In some embodiments, the printing layer may be formed from a plastics material which may comprise, for example, one or more of the following polymers: PVC, polyvinyl butyral (PVB), polylactic acid (PLA), polyester, a polyolefin, a thermoplastic elastomer and/or polyacrylate. In some embodiments, the layered product and/or the printed layered product may be in the form of a roll.
In some embodiments, the decorative layer may have a digitally printed design. In some embodiments, the surface-covering material may be suitable for covering a surface such as a floor, ceiling, or wall in or on a building. In some embodiments, the wear layer may comprise a clear plastics material including one or more of the following polymers: PVC, polyvinyl butyral (PVB), polylactic acid (PLA), polyester, a polyolefin, a thermoplastic elastomer and/or polyacrylate. In some embodiments, the wear layer may comprise a non-slip layer of one or more particles suitable for providing a non-slip surface. In some embodiments, the particles of the non-slip layer may be at least partially embedded in the wear layer. In some embodiments, the surface-covering material may have a protective coating layer on an upper surface of the wear layer.
In some embodiments, the decorative layer may comprise a latex-based ink. In some embodiments, the printed design comprises a latex-based ink. It has surprisingly been found that the wear layer has improved adhesion to the decorative layer and/or to the printed design when the decorative layer and/or the printed design comprises a latex-based ink.
In some embodiments, the backing layer may comprise a foamed plastics material such that the backing layer is capable of imparting a sound attenuation effect, for example an acoustic impact sound reduction of more than 10 dB, for example 11, 12, 13, 14 or 15 dB. In some embodiments, the foamed plastics material may be mechanically foamed by incorporating one or more types of compressible plastic spheres. In some embodiments, the foamed plastics material may be chemically foamed by being formed with a foaming agent such as an azodicarbonamide. In some embodiments, the backing layer may comprise one or more of the following polymers: PVC, polyvinyl butyral (PVB), polylactic acid (PLA), polyester and/or polyacrylate.
In some embodiments, the surface-covering material, and/or the floor-covering material according to the invention may comprise a protective coating layer. In some embodiments, the protective coating layer may comprise a cured polymer layer which seals the surface-covering material and/or the floor-covering material. In some embodiments, the protective coating layer includes a polyurethane, polyacrylate, urethane acrylate or a PVDF based composition.
In some embodiments, the surface-covering material, and/or the floor-covering material according to the invention may comprise a non-slip layer on its upper surface. In some embodiments, the non-slip layer comprises one or more particles suitable for providing a non-slip surface. In some embodiments, the particles may be at least partially embedded in the surface-covering material and/or the floor-covering material. The particles may comprise one or more types of slip resistant particles such as a glass particle, a silica particle, a polymeric particle (for example Nylon (Trademark)), a ceramic particle (e.g. porcelain) and an aluminium oxide particle. In some embodiments, the floor-covering material may be embossed.
In some embodiments, the floor-covering material may be a non-slip flooring material. In some embodiments, the flooring material may comprise a non-slip layer. In some embodiments, a non-slip layer may comprise one or more non-slip particles. In some embodiments, the particles may be smooth particles. A smooth particle is a particle which has no angular protrusion or indentation, for example a particle which has no protrusion or indentation having an outward facing angle of about 90° or less. In some embodiments, the particles may be one or more of a smooth sphere, bead, and/or grain. The advantage of using a smooth particle in the floor-covering material according to the invention is that the cured coating is easier to clean as the coating lacks any angular surface in which a cleaning material (for example the fibres of a mop) may be caught.
In some embodiments, the step of providing a lightweight layered product according to the invention comprises the steps of:
In some embodiments, the step of coating the fabric material comprises gelling the plastics composition. In some embodiments, the step of applying the printing layer comprises gelling the printing layer. In some embodiments, the printing machine used in the method of the invention may be a roll to roll printing machine. In some embodiments, the printing machine may be a digital printing machine. In some embodiments, the step of winding the layered product may use a jumbo roll. In some embodiments, a jumbo roll may have a width of from 1 m, for example from 2 m to 5 m, for example to 4 m; for example, the jumbo roll may have a length of about 3 m. In some embodiments, the layered product may have a thickness of from 0.05 mm to 1.2 mm, for example about 0.85 mm. In some embodiments, a jumbo roll of the layered product may have a weight of from 300 to 2000 kg, for example about 1000 kg. In some embodiments, the layered product may have a length of from about 100 m, for example from 200 to 600 m, for example to 500 m, for example about 450 m.
In some embodiments, the method may further comprise a step of applying a wear layer to an upper surface of the layered product (for example to an upper surface of the decorative layer) to form an upper layer. In some embodiments, the method may further comprise a step of applying a protective coating layer to an upper surface of layered product (for example to an upper surface of the wear layer) to form an upper layer. In some embodiments, the method may further comprise a step of applying a non-slip layer to the upper layer (for example to an upper surface of the wear layer or of the protective coating layer).
In some embodiments, the method may comprise the following steps to apply a backing layer to a lower surface of the reinforcing base layer:
In some embodiments, the roll according to the invention may consist essentially of a roll core and the lightweight layered product or the lightweight printed layered product. In some embodiments, the roll core may be a cylindrical support for the roll. In some embodiments, the roll core may be formed from paper, cardboard, and/or metal (such as steel or aluminium). In some embodiments, the roll may comprise a roll core and a lightweight printed layered product which comprises a layered product according to the invention and a decorative layer having a printed design wherein the decorative layer is arranged on an upper surface of the printing layer.
The invention will now be described with reference to the following Figures of the accompanying drawings which are not intended to limit the scope of the invention in which:
The first embodiment of a lightweight layered product according to the invention is indicated generally at 1 on
In an alternative embodiment, the support may be a film, for example a polymeric film.
The first embodiment of a lightweight printed layered product according to the invention is indicated generally at 10 on
The first embodiment of a surface-covering material according to the invention is indicated generally at 20 on
In an alternative embodiment, the wear layer 22 may comprise a non-slip layer 36 of one or more particles 38 suitable for providing a non-slip surface wherein such particles 38 are at least partially embedded in the wear layer 22. In a further alternative embodiment, the surface-covering material 20 may have a protective coating layer 34 on an upper surface of the wear layer 22.
The first embodiment of a floor-covering material according to the invention is indicated generally at 30 on
The second embodiment of a floor-covering material according to the invention is indicated generally at 130 on
The third embodiment of a floor-covering material according to the invention is indicated generally at 230 on
In alternative embodiment, the non-slip layer 36 may be applied to the wear layer 22 before the protective coating layer 34 is applied such that the particles 38 are at least partially embedded in the wear layer 22.
The floor-covering material 30,130,230 may optionally be embossed. The surface-covering material 20 and/or the floor-covering material 30,130,230 may optionally be cut up into tiles.
A roll according to the invention is indicated generally at 50 on
In an alternative embodiment, the roll 50 may consist of a roll core 52 around which layers 54 of a lightweight printed layered product 10 is wound.
The invention will now be illustrated with reference to the following Example which is not intended to limit the scope of the claimed invention.
The method of the invention of the invention was performed by carrying out the following steps:
The jumbo roll of steps d to i is illustrated in
Number | Date | Country | Kind |
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1711418.2 | Jul 2017 | GB | national |