阅读说明：本技术 一种环保抗菌防潮装饰纸及其制造方法 (Environment-friendly antibacterial moisture-proof decorative paper and manufacturing method thereof ) 是由 左众文 于 2021-07-22 设计创作，主要内容包括：本发明公开了一种环保抗菌防潮装饰纸及其制造方法,包括装饰纸层,所述装饰纸层包括外膜层、负离子层和抗菌防潮层,且所述负离子层和抗菌防潮层从上到下依次设置,所述外膜层设置在负离子层和负离子层的外侧,所述负离子层采用凹版印刷在抗菌防潮层上,层所述抗菌防潮层由湿法纺织制成,本发明涉及装饰纸技术领域。该环保抗菌防潮装饰纸及其制造方法,负离子有效吸附室内有害物质,不仅自身不增加污染,而且清洁净化室内空气,保障人体健康不受影响,采用湿法纺织制成的防潮抗菌层不仅可以在使用过程中都保持防潮抗菌的功能,提高了装饰纸的韧性和强度,有效的防止损坏,凹版印刷的负离子层可以保证覆盖的均匀性。(The invention discloses environment-friendly antibacterial moisture-proof decorative paper and a manufacturing method thereof, wherein the environment-friendly antibacterial moisture-proof decorative paper comprises a decorative paper layer, the decorative paper layer comprises an outer film layer, an anion layer and an antibacterial moisture-proof layer, the anion layer and the antibacterial moisture-proof layer are sequentially arranged from top to bottom, the outer film layer is arranged on the outer sides of the anion layer and the anion layer, the anion layer is printed on the antibacterial moisture-proof layer by adopting a gravure, and the antibacterial moisture-proof layer is made by wet spinning. According to the environment-friendly antibacterial moisture-proof decorative paper and the manufacturing method thereof, negative ions effectively adsorb indoor harmful substances, pollution is not increased, indoor air is cleaned and purified, human health is guaranteed not to be affected, a moisture-proof antibacterial layer made by wet spinning can keep a moisture-proof antibacterial function in the using process, the toughness and strength of the decorative paper are improved, damage is effectively prevented, and the uniformity of coverage can be guaranteed by the negative ion layer of gravure printing.)

1. The utility model provides an antibiotic dampproofing decorative paper of environmental protection, includes decorative paper layer, its characterized in that: the decorative paper layer comprises an outer film layer, an anion layer and an antibacterial moisture-proof layer, the anion layer and the antibacterial moisture-proof layer are sequentially arranged from top to bottom, the outer film layer is arranged on the outer sides of the anion layer and the anion layer, the anion layer is printed on the antibacterial moisture-proof layer by adopting a gravure printing mode, and the antibacterial moisture-proof layer is formed by wet-process spinning;

the negative ion layer comprises the following components in parts by weight: 20-40 parts of deionized water, 5-30 parts of natural mineral powder, 15-30 parts of pigment and filler, 35-65 parts of high-molecular tourmaline particles, 15-20 parts of surfactant, 20-30 parts of tourmaline-resin compound, 40-60 parts of fine heavy calcium carbonate, 0.5-5 parts of zeolite, 0.01-0.2 part of dispersant, 0.5-2.0 parts of film-forming assistant and 9-12 parts of styrene-acrylate copolymer;

the antibacterial moisture-proof solution comprises the following components in percentage by mass: 70-85% of deionized water, 4.5-6% of cross-linked sodium polyacrylate, 3-7% of hollow silicon dioxide submicron spheres, 2.5-5.5% of stabilizing agent, 0.5-1% of benzisothiazoline, 0.5-2.25% of dichloro-N-N-octyl isothiazolinone, 0.5-1% of pH value regulator and 2-5% of modified acrylic emulsion.

2. The manufacturing method of the environment-friendly antibacterial moistureproof decorative paper is characterized by comprising the following steps: the processing method of the negative ion decorative paper comprises the following steps:

s1, respectively putting the natural mineral powder, the zeolite and the fine ground calcium carbonate into a superfine powder mixer at the mixing speed of 700 and 1200r/min to obtain a superfine powder mixing agent for later use;

s2: adding the micro powder mixing agent mixed in the step S1 and the polymer tourmaline particles into a stirring kettle, uniformly stirring at the stirring speed of 800r/min and injecting deionized water and pigment filler for heating at the heating temperature of 210-330 ℃ for 40-70min, wherein the deionized water and the pigment filler are injected for heating, and the heating time is 40-70min to obtain a coating initial solvent for later use;

s3: adding the coating initial solvent obtained in the step S2 and the tourmaline-resin compound into a high-speed dispersion machine for stirring for 15-30min to obtain a negative ion layer mixture for later use;

s4: adding the negative ion layer mixture obtained in the step S3, the phenylpropylene, the deionized water and the dispersing agent into a reaction kettle for stirring, wherein the stirring speed is 800-1000r/min, the stirring time is 24-34min, heating is carried out after stirring is finished, the heating temperature is 220-325 ℃, the standard atmospheric pressure and the heating time is 0.5-1h, then the surfactant and the film-forming auxiliary agent are added for stirring at a low speed, the stirring speed is 200-350r/min, and the mixture is naturally cooled to normal temperature after the stirring is finished, so as to obtain the negative ion layer base material;

s5: adding deionized water, cross-linked sodium polyacrylate, hollow silicon dioxide submicron spheres, a stabilizer, benzisothiazoline, dichloro-N-N-octyl isothiazolinone, a pH value regulator and a modified acrylic emulsion in the antibacterial and moistureproof composite liquid into a stirring kettle, stirring uniformly at the stirring speed of 800-1600r/min, heating at the heating temperature of 70-90 ℃ after stirring, stopping heating when the viscosity reaches 11-17 Pa.s, and naturally cooling to normal temperature after heating to obtain the antibacterial and moistureproof composite liquid;

s6: putting the antibacterial and moistureproof composite liquid obtained in the step S5 into a wet spinning machine, processing an antibacterial and moistureproof textile layer by using plant fibers as raw materials through wet spinning, drying the antibacterial and moistureproof textile layer which is spun through the wet spinning for 20-30min at the temperature of 80-90 ℃;

s7: quickly freezing and cooling the antibacterial and moistureproof textile layer of the processed and formed decorative paper, uniformly printing the obtained negative ion layer base material on the antibacterial and moistureproof textile layer by gravure printing, and then drying, wherein the drying initial temperature is 35 ℃, the drying initial temperature uniformly rises at a speed of 10 ℃/min until the temperature rises to 80-90 ℃, and then continuously drying for 15-25 min;

s8: and printing the antibacterial and dampproof composite liquid on the two sides of the inner layer of the dried decorative paper by gravure printing to form outer film layers, and drying at the temperature of 80-90 ℃ for 10-15 min.

3. The environment-friendly antibacterial moisture-proof decorative paper according to claim 1, wherein: the natural mineral powder is composed of manganese dioxide, titanium dioxide, strontium soil and rare earth, and the weight ratio of the manganese dioxide, the titanium dioxide, the strontium soil and the rare earth is as follows: 2:2:1:3.

4. The environment-friendly antibacterial moisture-proof decorative paper according to claim 1, wherein: in the tourmaline-resin compound, the weight ratio of the tourmaline to the resin is 1:7-1: 28.

5. An environmental antibacterial moisture-proof decorative paper according to claim 3, characterized in that: the particle diameters of the titanium dioxide and the manganese dioxide are 100-200 nanometers.

6. The environment-friendly antibacterial moisture-proof decorative paper according to claim 1, wherein: the dispersing agent is formed by mixing stearamide and polyhydric alcohol, and the weight ratio of the stearamide to the polyhydric alcohol is 1.5: 1.

7. the environment-friendly antibacterial moisture-proof decorative paper according to claim 1, wherein: the viscosity of the antibacterial and moistureproof composite liquid is between 11 and 17 Pa.s.

8. The environment-friendly antibacterial moisture-proof decorative paper according to claim 1, wherein: the pH value regulator is any one of ammonia water, sodium carbonate and sodium bicarbonate.

9. The environment-friendly antibacterial moisture-proof decorative paper according to claim 1, wherein: the surfactant is anionic polyacrylamide in anionic surfactant.

Technical Field

The invention relates to the technical field of decorative paper, in particular to environment-friendly antibacterial moistureproof decorative paper and a manufacturing method thereof.

Background

At present, the common methods for removing formaldehyde in home comprise a ventilation method, a plant absorption method, an activated carbon adsorption method, a chemical reagent purification method and the like; the decorative paper is widely applied to various occasions such as furniture manufacturing, interior decoration and the like because of the incomparable characteristics of various interior decoration materials such as various colors, rich patterns, luxurious style, safety, environmental protection, convenient construction, proper price and the like, so the decorative paper becomes an important interior decoration material and is more and more widely applied.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the environment-friendly antibacterial moisture-proof decorative paper and the manufacturing method thereof, and solves the problems that most of the existing decorative paper contains harmful substances such as formaldehyde and the like, cannot be antibacterial and moisture-proof, is easy to damage and has short service life.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the environment-friendly antibacterial moisture-proof decorative paper comprises a decorative paper layer, wherein the decorative paper layer comprises an outer film layer, an anion layer and an antibacterial moisture-proof layer, the anion layer and the antibacterial moisture-proof layer are sequentially arranged from top to bottom, the outer film layer is arranged on the outer sides of the anion layer and the anion layer, the anion layer is printed on the antibacterial moisture-proof layer by adopting a gravure printing mode, and the antibacterial moisture-proof layer is formed by weaving through a wet method;

the negative ion layer comprises the following components in parts by weight: 20-40 parts of deionized water, 5-30 parts of natural mineral powder, 15-30 parts of pigment and filler, 35-65 parts of high-molecular tourmaline particles, 15-20 parts of surfactant, 20-30 parts of tourmaline-resin compound, 40-60 parts of fine heavy calcium carbonate, 0.5-5 parts of zeolite, 0.01-0.2 part of dispersant, 0.5-2.0 parts of film-forming assistant and 9-12 parts of styrene-acrylate copolymer;

the antibacterial moisture-proof solution comprises the following components in percentage by mass: 70-85% of deionized water, 4.5-6% of cross-linked sodium polyacrylate, 3-7% of hollow silicon dioxide submicron spheres, 2.5-5.5% of stabilizing agent, 0.5-1% of benzisothiazoline, 0.5-2.25% of dichloro-N-N-octyl isothiazolinone, 0.5-1% of pH value regulator and 2-5% of modified acrylic emulsion.

The method for manufacturing the environment-friendly antibacterial moisture-proof decorative paper comprises the following steps:

s1, respectively putting the natural mineral powder, the zeolite and the fine ground calcium carbonate into a superfine powder mixer at the mixing speed of 700 and 1200r/min to obtain a superfine powder mixing agent for later use;

s2: adding the micro powder mixing agent mixed in the step S1 and the polymer tourmaline particles into a stirring kettle, uniformly stirring at the stirring speed of 800r/min and injecting deionized water and pigment filler for heating at the heating temperature of 210-330 ℃ for 40-70min, wherein the deionized water and the pigment filler are injected for heating, and the heating time is 40-70min to obtain a coating initial solvent for later use;

s3: adding the coating initial solvent obtained in the step S2 and the tourmaline-resin compound into a high-speed dispersion machine for stirring for 15-30min to obtain a negative ion layer mixture for later use;

s4: adding the negative ion layer mixture obtained in the step S3, the phenylpropylene, the deionized water and the dispersing agent into a reaction kettle for stirring, wherein the stirring speed is 800-1000r/min, the stirring time is 24-34min, heating is carried out after stirring is finished, the heating temperature is 220-325 ℃, the standard atmospheric pressure and the heating time is 0.5-1h, then the surfactant and the film-forming auxiliary agent are added for stirring at a low speed, the stirring speed is 200-350r/min, and the mixture is naturally cooled to normal temperature after the stirring is finished, so as to obtain the negative ion layer base material;

s5: adding deionized water, cross-linked sodium polyacrylate, hollow silicon dioxide submicron spheres, a stabilizer, benzisothiazoline, dichloro-N-N-octyl isothiazolinone, a pH value regulator and a modified acrylic emulsion in the antibacterial and moistureproof composite liquid into a stirring kettle, stirring uniformly at the stirring speed of 800-1600r/min, heating at the heating temperature of 70-90 ℃ after stirring, stopping heating when the viscosity reaches 11-17 Pa.s, and naturally cooling to normal temperature after heating to obtain the antibacterial and moistureproof composite liquid;

s6: putting the antibacterial and moistureproof composite liquid obtained in the step S5 into a wet spinning machine, processing an antibacterial and moistureproof textile layer by using plant fibers as raw materials through wet spinning, drying the antibacterial and moistureproof textile layer which is spun through the wet spinning for 20-30min at the temperature of 80-90 ℃;

s7: quickly freezing and cooling the antibacterial and moistureproof textile layer of the processed and formed decorative paper, uniformly printing the obtained negative ion layer base material on the antibacterial and moistureproof textile layer by gravure printing, and then drying, wherein the drying initial temperature is 35 ℃, the drying initial temperature uniformly rises at a speed of 10 ℃/min until the temperature rises to 80-90 ℃, and then continuously drying for 15-25 min;

s8: and printing the antibacterial and dampproof composite liquid on the two sides of the inner layer of the dried decorative paper by gravure printing to form outer film layers, and drying at the temperature of 80-90 ℃ for 10-15 min.

Further, the natural mineral powder is composed of manganese dioxide, titanium dioxide, strontium soil and rare earth, and the weight ratio of the manganese dioxide, the titanium dioxide, the strontium soil and the rare earth is as follows: 2:2:1:3.

Furthermore, in the tourmaline-resin compound, the weight ratio of the tourmaline to the resin is 1:7-1: 28.

Furthermore, the particle diameters of the titanium dioxide and the manganese dioxide are 100-200 nm.

Further, the dispersing agent is formed by mixing stearamide and polyhydric alcohol, and the weight ratio of the stearamide to the polyhydric alcohol is 1.5: 1.

furthermore, the viscosity of the antibacterial and moistureproof composite liquid is between 11 and 17 Pa.s.

Further, the pH value regulator is any one of ammonia water, sodium carbonate and sodium bicarbonate.

Further, the surfactant is anionic polyacrylamide in anionic surfactant.

(III) advantageous effects

The invention provides environment-friendly antibacterial moisture-proof decorative paper and a manufacturing method thereof. The method has the following beneficial effects:

the environment-friendly antibacterial moisture-proof decorative paper and the manufacturing method thereof can continuously release negative ions, remove harmful substances such as formaldehyde and the like and indoor peculiar smell, resist and inhibit bacteria, prevent mildew and bacteria and effectively prevent veneering products from being damped and damaged.

According to the environment-friendly antibacterial moisture-proof decorative paper and the manufacturing method thereof, negative ions effectively adsorb indoor harmful substances, so that pollution is not increased, indoor air is cleaned and purified, and human health is not affected.

The environment-friendly antibacterial moisture-proof decorative paper and the manufacturing method thereof have the advantages that the anion layer is stable in property, resistant to high temperature and high pressure, non-toxic, colorless and tasteless, free of any side effect on a human body, capable of continuously generating anions, the anion layer wraps the original wallpaper layer, and multiple anions can be released by adopting the anion additive and the polymer tourmaline particles.

According to the environment-friendly antibacterial moisture-proof decorative paper and the manufacturing method thereof, the hollow silica submicron spheres, the dichloro-N-N-octyl isothiazolinone and the modified acrylic emulsion adopted in the moisture-proof antibacterial solution have good antibacterial and moisture-proof performances, and can absorb moisture in a room when the humidity is too high, so that the dryness in the room is guaranteed.

The environment-friendly antibacterial moisture-proof decorative paper and the manufacturing method thereof have the advantages that the moisture-proof antibacterial layer made by wet spinning can keep the moisture-proof antibacterial function in the using process, the problem that bacteria grow and go moldy in the traditional decorative paper from inside to outside is solved, the toughness and the strength of the decorative paper are improved, the damage is effectively prevented, the covering uniformity can be ensured by the negative ion layer of gravure printing, and the protective outer film layer formed by the antibacterial moisture-proof coating arranged on the outermost side can protect the outermost side of the decorative paper.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the contents in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

the invention provides a technical scheme that: the environment-friendly antibacterial moisture-proof decorative paper comprises a decorative paper layer, wherein the decorative paper layer comprises an outer film layer, an anion layer and an antibacterial moisture-proof layer, the anion layer and the antibacterial moisture-proof layer are sequentially arranged from top to bottom, the outer film layer is arranged on the outer sides of the anion layer and the anion layer, the anion layer is printed on the antibacterial moisture-proof layer by adopting a gravure, and the antibacterial moisture-proof layer is made by wet spinning;

the anion layer comprises the following components in parts by weight: 20-40 parts of deionized water, 5-30 parts of natural mineral powder, 15-30 parts of pigment and filler, 35-65 parts of high-molecular tourmaline particles, 15-20 parts of surfactant, 20-30 parts of tourmaline-resin compound, 40-60 parts of fine heavy calcium carbonate, 0.5-5 parts of zeolite, 0.01-0.2 part of dispersant, 0.5-2.0 parts of film-forming assistant and 9-12 parts of styrene-acrylate copolymer;

the antibacterial moisture-proof solution comprises the following components in percentage by mass: 70-85% of deionized water, 4.5-6% of cross-linked sodium polyacrylate, 3-7% of hollow silicon dioxide submicron spheres, 2.5-5.5% of stabilizing agent, 0.5-1% of benzisothiazoline, 0.5-2.25% of dichloro-N-N-octyl isothiazolinone, 0.5-1% of pH value regulator and 2-5% of modified acrylic emulsion.

The second embodiment:

the environment-friendly antibacterial moisture-proof decorative paper comprises a decorative paper layer, wherein the decorative paper layer comprises an outer film layer, an anion layer and an antibacterial moisture-proof layer, the anion layer and the antibacterial moisture-proof layer are sequentially arranged from top to bottom, the outer film layer is arranged on the outer sides of the anion layer and the anion layer, the anion layer is printed on the antibacterial moisture-proof layer by adopting a gravure, and the antibacterial moisture-proof layer is made by wet spinning;

the anion layer comprises the following components in parts by weight: 20-40 parts of deionized water, 5-30 parts of natural mineral powder, 15-30 parts of pigment and filler, 35-65 parts of high-molecular tourmaline particles, 15-20 parts of surfactant, 20-30 parts of tourmaline-resin compound, 40-60 parts of fine heavy calcium carbonate, 0.5-5 parts of zeolite, 0.01-0.2 part of dispersant, 0.5-2.0 parts of film-forming assistant and 9-12 parts of styrene-acrylate copolymer;

the antibacterial moisture-proof solution comprises the following components in percentage by mass: 70-85% of deionized water, 4.5-6% of cross-linked sodium polyacrylate, 3-7% of hollow silicon dioxide submicron spheres, 2.5-5.5% of stabilizing agent, 0.5-1% of benzisothiazoline, 0.5-2.25% of dichloro-N-N-octyl isothiazolinone, 0.5-1% of pH value regulator and 2-5% of modified acrylic emulsion.

The third embodiment is as follows:

the environment-friendly antibacterial moisture-proof decorative paper comprises a decorative paper layer, wherein the decorative paper layer comprises an outer film layer, an anion layer and an antibacterial moisture-proof layer, the anion layer and the antibacterial moisture-proof layer are sequentially arranged from top to bottom, the outer film layer is arranged on the outer sides of the anion layer and the anion layer, the anion layer is printed on the antibacterial moisture-proof layer by adopting a gravure, and the antibacterial moisture-proof layer is made by wet spinning;

the anion layer comprises the following components in parts by weight: 20-40 parts of deionized water, 5-30 parts of natural mineral powder, 15-30 parts of pigment and filler, 35-65 parts of high-molecular tourmaline particles, 15-20 parts of surfactant, 20-30 parts of tourmaline-resin compound, 40-60 parts of fine heavy calcium carbonate, 0.5-5 parts of zeolite, 0.01-0.2 part of dispersant, 0.5-2.0 parts of film-forming assistant and 9-12 parts of styrene-acrylate copolymer;

the antibacterial moisture-proof solution comprises the following components in percentage by mass: 70-85% of deionized water, 4.5-6% of cross-linked sodium polyacrylate, 3-7% of hollow silicon dioxide submicron spheres, 2.5-5.5% of stabilizing agent, 0.5-1% of benzisothiazoline, 0.5-2.25% of dichloro-N-N-octyl isothiazolinone, 0.5-1% of pH value regulator and 2-5% of modified acrylic emulsion.

A method for manufacturing environment-friendly antibacterial moisture-proof decorative paper comprises the following steps:

s1, respectively putting the natural mineral powder, the zeolite and the fine ground calcium carbonate into a superfine powder mixer at the mixing speed of 700 and 1200r/min to obtain a superfine powder mixing agent for later use;

s2: adding the micro powder mixing agent mixed in the step S1 and the polymer tourmaline particles into a stirring kettle, uniformly stirring at the stirring speed of 800r/min and injecting deionized water and pigment filler for heating at the heating temperature of 210-330 ℃ for 40-70min, wherein the deionized water and the pigment filler are injected for heating, and the heating time is 40-70min to obtain a coating initial solvent for later use;

s3: adding the coating initial solvent obtained in the step S2 and the tourmaline-resin compound into a high-speed dispersion machine for stirring for 15-30min to obtain a negative ion layer mixture for later use;

s4: adding the negative ion layer mixture obtained in the step S3, the phenylpropylene, the deionized water and the dispersing agent into a reaction kettle for stirring, wherein the stirring speed is 800-1000r/min, the stirring time is 24-34min, heating is carried out after stirring is finished, the heating temperature is 220-325 ℃, the standard atmospheric pressure and the heating time is 0.5-1h, then the surfactant and the film-forming auxiliary agent are added for stirring at a low speed, the stirring speed is 200-350r/min, and the mixture is naturally cooled to normal temperature after the stirring is finished, so as to obtain the negative ion layer base material;

s5: adding deionized water, cross-linked sodium polyacrylate, hollow silicon dioxide submicron spheres, a stabilizer, benzisothiazoline, dichloro-N-N-octyl isothiazolinone, a pH value regulator and a modified acrylic emulsion in the antibacterial and moistureproof composite liquid into a stirring kettle, stirring uniformly at the stirring speed of 800-1600r/min, heating at the heating temperature of 70-90 ℃ after stirring, stopping heating when the viscosity reaches 11-17 Pa.s, and naturally cooling to normal temperature after heating to obtain the antibacterial and moistureproof composite liquid;

s6: putting the antibacterial and moistureproof composite liquid obtained in the step S5 into a wet spinning machine, processing an antibacterial and moistureproof textile layer by using plant fibers as raw materials through wet spinning, drying the antibacterial and moistureproof textile layer which is spun through the wet spinning for 20-30min at the temperature of 80-90 ℃;

s7: quickly freezing and cooling the antibacterial and moistureproof textile layer of the processed and formed decorative paper, uniformly printing the obtained negative ion layer base material on the antibacterial and moistureproof textile layer by gravure printing, and then drying, wherein the drying initial temperature is 35 ℃, the drying initial temperature uniformly rises at a speed of 10 ℃/min until the temperature rises to 80-90 ℃, and then continuously drying for 15-25 min;

s8: and printing the antibacterial and dampproof composite liquid on the two sides of the inner layer of the dried decorative paper by gravure printing to form outer film layers, and drying at the temperature of 80-90 ℃ for 10-15 min.

The natural mineral powder consists of manganese dioxide, titanium dioxide, strontium soil and rare earth, and the weight ratio of the manganese dioxide to the titanium dioxide to the strontium soil to the rare earth is as follows: 2:2:1:3.

In the tourmaline-resin compound, the weight ratio of tourmaline to resin is 1:7-1: 28.

The particle diameters of the titanium dioxide and the manganese dioxide are 100-200 nanometers.

The dispersing agent is formed by mixing stearamide and polyhydric alcohol, and the weight ratio of the stearamide to the polyhydric alcohol is 1.5: 1.

the viscosity of the antibacterial and moistureproof composite liquid is between 11 and 17 Pa.s.

The pH regulator is any one of ammonia water, sodium carbonate and sodium bicarbonate.

The surfactant is anionic polyacrylamide in anionic surfactant.

The embodiment of the invention is compared with the common decorative paper:

it is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.