BACKGROUND BACKGROUND OF THE INVENTION The present invention is directed to a novel container for the packaging of dispersion-based dyes to improve ease of use and efficiency in the preparation of dyes for final dispersion in paint formulation centers. Currently, dispersion-based colorants, such as universal colorants, are packaged in quart metal cans. Metal cans require a variety of tools to open in order to fill dye dispensers. Such colorant distributors are used to provide one or more colorants to a base paint to provide a desired color paint. A common method used to open metallic cans of dye based on universal dispersion, is with the use of a razor of carpets and a triangular can opener of "gothic key" type. This method of opening the cans has exposed those employees who formulate the paint for the individual consumer to potential injuries. In addition, both the tools to open and the methods of use leave small openings in the upper part of the can from which the dye is to be poured. This results in a time of slow addition to the distributors, which does not allow to completely empty the metal containers, and does not allow access to properly clean the containers to dispose of the sound in an environmental manner. In the daily filling of dye dispensers, a large number of one-quart containers are required. This process of filling the distributors requires a considerable time of dedication. Typically, before filling the dispensers, the containers containing the colorant are agitated, such as in convenient paint mixing equipment, to mix and provide a uniform colorant. Mixing in such equipment, takes approximately 3 to 5 minutes. If a full quart of dye is not used, the containers are stored until the next day. There is no way to reseal partially filled open containers, subjecting the containers to potential contamination, spillage, evaporation of components and inability to mix. When all cartridges are filled, all quart cans are discarded as normal waste. There is no possibility of recycling. "Plastics Technology -Online," October 2003, discusses new technologies to replace the ubiquitous gallon metal paint cans used by professional painters and domestic consumers. The article describes the "twist and pour" gallon plastic can by Sherwin-Williams Dutch Boy, an extrusion blow molded HDPE container with a PP cap that is currently marketed. This breakthrough is reinforced by the introduction of a similar container by Masterchem, a supplier of primer paints that sells final-coat paints in one-gallon and one-gallon HDPE cans. These plastic containers have square designs, with a round lid, with a torsion top that accommodates more cans within the available display space, a priority for mass retailers. The new plastic containers also incorporate ergonomic and convenience features for the predominantly female paint consumer, including injection molded handles and spouts for pouring, a reclosable screw cap that folds like a cup of paint, and coordinated labels of color that help consumers choose the right paint. However, new multi-part containers cost at least three times as much as a typical gallon steel can. In addition, the new plastic paint containers are comfortably accommodated within the handling, filling, and coloring infrastructure of the current paint industry designed for round steel cans. In the beginning of 2004, two firms launched new all-plastic concepts for direct replacement of metal cans: an all-PP can, opaque injection molded, developed by KW Plastics of Troy, Ala., and a one-piece PET can blow molded from injection, from PCC Group in the UK For approximately a decade, KW Plastics has supplied mass market paint companies with millions of paint cans in a hybrid design that joins a PP body to a steel ring and lid. KW now plans to launch a can of all PP paint in mid 2004. The body, ring, and lid of the can will be black PP, high impact, it is thought that at the beginning will have a metal handle that slammed shut. According to the reports received, the resistance to deformation of the can exceeds that of metal cans and is sufficient to stack up to 25 units of containers of height. Called "Spring Lock", the two-part gallon can uses an injection molded black PP body similar to that of hybrid cans and a separate injection molded PP ring and cap. The shape of the can can be compared intentionally with that of the steel version in such a way that it is easily accommodated within the existing filling lines and in the stored agitation equipment. The spouts for pouring and the PP handles that snap shut, injection molded are also in development. There is no knowledge of any of the patents with respect to alternative containers to address the issue of handling dyes. Sherwin Williams offers colorant in an "F" style gallon plastic container. The "F" style container is a duplicate of a gallon anti-freeze container. In order to mix the colorant, this container must be stirred by hand. Those instructions are specified on the label. It seems that no stipulations have been made for this container to be shaken with paint shaking equipment. The present invention is directed to a new design for a family of dispersion based dye containers to address the key issues and previous objectives. The design consists of an extrusion blow molded container of HDPE (high density polyethylene). The new container incorporates a wide opening that has a diameter of at least 50 mm that allows a closure of the removable and replaceable threaded top. The design has the following advantages over the current quart metallic containers on the market: (1) they do not require tools to open, (2) they are releasable, (3) the speed of addition is improved with the wide opening. Tests have shown that the time required to add the colorant to paint distributors can be reduced over current methods. For a one-quart container, pour times are reduced 66-75% (10-15 seconds) per container. Additional advantages include: (4) the wide opening facilitates the improvement of the cleaning of the container for suitable environmental waste, (5) the construction material is a recyclable plastic. In addition, the container does not contain a separate handle that needs to be molded and / or attached to the container, but includes a hand grip area molded into the container to provide a more secure handle, reducing the potential for container dropping and creating spills. Most metal containers on the market are cylindrical in shape without handle area. The plastic container of this invention is cylindrical and has a circular cross section from the top to the bottom. The container incorporates a circumscribing grip area of narrow cross section on the outer surface of the container. The circular shape of the container allows handling and agitation in current agitation equipment for multiple cases. A series of circumferentially spaced projections in the hand grip area reinforces the container and makes the plastic container of this invention particularly useful in commercial paint mixtures. In this wayThe present invention provides a plastic container for containing liquid comprising a circular open upper part which is capable of being closed by a separate lid and a body portion extending from below the open upper part, the body portion containing a ring-shaped clamping ring of reduced perimeter placed around the perimeter of the body portion, the circular upper part has a diameter of at least 50 mm, the container is devoid of a separately attached handle or any portion of handle which is extends laterally outward from the container. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded plan view of the container of this invention with lid. Figure 2 is a plan view of the container of this invention with the lid placed in the container. Figure 3 is an end view of the upper part of the container without the lid showing the circular cross section. Figure 4 is an alternative of the container to that shown in Figure 1, in particular with respect to the shape of the circumferential rim. Figure 5 is a plan view of another alternative of the container within the scope of this invention. Current plastic containers can be used to contain liquids such as dispersion-based colorants, personal care products, and foods. Current containers can also be used for semi-solids that can be pumped or poured. Current containers can also be used for semi-solids that can be pumped or poured. The containers of this invention can be used to store and distribute the liquids which are used to make customized personal care products from a variety of bases. Such personal care products include those used in the areas of the face, lips, and eyes and in all external applications and rinsing. Examples include leg cosmetics, insect repellent lotion, shampoos of all types, bubble bath, body lotion (moisturizer, cleansing, analgesic, astringent), after-shave lotion, after milk bath, and sunscreen . In particular, the plastic containers of the present invention are used to store dispersion-based colorants, such as universal colorants, which generally contain above 10% of dispersed solid pigments within a liquid carrier, typically a mixture of surfactants, so which keep the pigment solids suspended in the liquid solution without separating. The containers of this invention are useful for storing and distributing liquid colorants within paint distribution machines that are used to make custom colors from a variety of paint bases. The containers of the present invention provide improvements in the daily filling of the colorant distributors for the formation of paint, as previously described. In this way, it facilitates the opening, being completely releasable, fast filling speed, easy cleaning for disposal and which is recyclable are useful properties of the containers of this invention. Importantly, plastic containers are provided with a strength characteristic such that the container can withstand the forces that extend into the container during the typical mixing or stirring required to provide colorant uniformity. An example of a paint container of the present invention is shown in Figures 1 and 2 and is designated generally by reference numeral 10. The container, for example in quarter and one-half gallon sizes, is formed by molding by Extrusion blown from high density polyethylene (HDPE). The particular molding process to form the paint container is not critical, and any known method capable of forming the container 10 as described below can be used in this invention. Extrusion blow molding, a process well known in the art for forming hollow plastic structures such as containers, is particularly useful. Although HDPE is preferred, the configuration of the container of this invention can be molded from other plastics such as polypropylene (PP) or polyethylene triftalate (PET). It has been found that HDPE provides economical savings in that a container of desired thickness with sufficient rigidity can be formed. With reference to Figure 1, the container 10 has an upper part or neck 12 which is of circular cross-section, see Figure 3. The neck 12 has a wide mouth of a diameter of at least 50 mm. Diameters of at least 60 mm are also useful, and in particular, diameters of 70-100 mm or more are contemplated. The neck 12 can be sealed by a lid 14 and configured in such a way as to allow continuous opening and closing of the lid 14 on top of the top 12 to effectively distribute and seal the contents within the interior of the container 10. The upper portions with Brooch clasp are useful. Shown in Figure 1 is an upper torsional portion in which the spiral threads 16 in the neck 12 are matched with the threads contained in the inner cover 14. As shown, the threads 16 include a circumferential thread 18, known as a safety band, which ensures that the lid 14 remains secure in the neck 12, even in the event that the container 10 is pushed strongly or dropped. From the neck or upper part 12, the container 10 contains a flange 20 which is larger in diameter than the neck 12. The flange 20 preferably has a circular cross-section from beginning to end. However, other transverse configurations are possible that range from elliptical to rectangular and square. In order to maintain a circular cross-section, it is believed that the container of this invention is more easily accommodated within the known paint can handling equipment. In the configuration of the flange 20 as shown in Figure 1, the flange 20 expands slightly from the neck 12. Other flange configurations can be provided as shown in the container of Figure 4. Below the flange 20 is the cylindrical body 22 of the container 10. The body 22 has a uniform outer wall, and, again, preferably is of a circular cross-section substantially from beginning to end. As mentioned previously with respect to the flange 20, the body 22 can be provided with other circular cross sections, although the other configurations are not preferred. Positioned between the flange 20 and the body 22 is a circumferential fastening ring 24 in the form of a circumferential indentation about the container 10. The fastening ring has a smaller external diameter than the two outer diameters of the flange 20 and the body 22, and allows the user to hold the container in his hand, typically between the thumb and forefinger. The container 10 does not contain any handle fittings that need to be molded separately or formed separately and subsequently added to the container. In addition, the container 10 of the present invention does not include any handle configuration that extends or protrudes laterally from the container. In this way, the mold for the container 10 is of a relatively simple construction and allows relatively easy molding with a uniform thickness easily obtainable. The narrow diameter clamping ring 24 maintains the preferred circular cross-section of the container 10 of this invention from the top to the bottom, and allows the container 10 of this invention to be used in handling and stirring equipment for paint cans conventional. To reinforce the container 10, the clamping ring 24 contains a plurality of projection 26 spaced circumferentially along and molded into the clamping ring 24. The projections 26 may be protuberances from the external surface as shown or may be indentations as shown in the container illustrated in Figure 5. The projections 26 reinforce the strength of the container 10 and, in particular, provide the strength necessary to support the vigorous agitation that takes place in the conventional paint mixing equipment Figure 4 illustrates another example of a plastic container within the scope of the present invention and which is very similar to the container 10 as shown in Figure 1. As shown in FIG. shown in Figure 4, the plastic container which is generally indicated by the reference number 30, and typically in the size of a quarter or half a gallon, is formed by extrusion blow molding of plastic materials as used to form the container 10 and previously described. The container 30 contains a neck 32, which is preferably of a circular cross section. The neck 32 has a mouth of the same diameter as discussed with respect to the container 10. The neck 32 can be sealed by a cover, which is not shown, and can be configured in such a way as to allow continuous opening and closing of the neck. lid over the neck 32 to effectively distribute and seal the contents within the interior of the container 30. Although the upper parts with the snap closure can be used as shown in Figure 4, the neck 32 contains spiral threads 34, which They can be matched with the threads contained inside a lid. The neck 32 also includes a circumferential thread 36, known as a safety lath equivalent to the safety lath 18, as shown in Figure 1. The safety lath ensures that any cover that closes around the neck 32 remains secure in place in case the container 30 is vigorously stirred or dropped. From the neck 32, the container 30 contains a flange 38 which is larger in diameter than the neck 32. The flange 38 preferably has a circular cross-section from beginning to end. A particular difference between the container 30 and the container 10 of Figure 1 is the shape of the rim 38. Thus, the rim 38 is of a rounded or vertical shape compared to the rim 20 of the container 10, in which the flange It expands slightly from the neck. The exact exterior shape of the flange 38 is not particularly critical to the present invention. Below the rim 38 is a cylindrical body 40 of the container 30. The body 40 has a uniform outer wall and again preferably is of a circular cross section substantially from start to finish. The body 40 can be provided with another circular cross section, although the other configurations are not preferred. Positioned between the flange 38 and the body 40 is a circumferential fastening ring 42 in the form of a circumferential indentation about the container 30. The fastening ring has an outer diameter smaller than the outer diameters of the flange 38 and the body 40, and is equivalent to the clamping ring 24 of the container 10, shown in Figure 1. The clamping ring allows the user to hold the container in one hand, typically between the thumb and forefinger, and wherein the flange 38 abuts the top of the handle surface. Like the container 10, the container 30 does not contain any handle fittings that need to be molded separately or formed separately and subsequently attached to the container. In addition, the container 30 does not include any handle configuration that extends or protrudes laterally from the container. Said shape allows the molding of the container 30 to be of a simple construction. further, the shape of the container allows it to be easily placed within the conventional paint mixing equipment and vigorously agitated without distorting any of the lateral handle configurations. The container 30 also contains a series of circumferentially spaced projections 44 molded into the fastening ring 42. As shown in Figure 4, the projections 44 are protuberances from the outer surface of the container 30, but may be indentations in which the projections extend from the internal surface of the container. The projections 44 greatly resist the plastic container 30 and allow the plastic container to be vigorously agitated in paint mixing equipment without destruction of the container structure. In Figure 5, another alternative plastic container is shown within the scope of the present invention. In Figure 5, the plastic container is generally indicated by the reference number 50, and plastic materials such as high density polyethylene, polypropylene and polyethylene terephthalate can be formed from the same, as previously described. Again, the container 50 can be formed by any known molding technique, although extrusion blow molding is a usual method particularly for container formation. The container 50 contains a neck 52, which can be sealed by a cap that is not shown by means of threads 54 placed on the neck 52, and which are matched with threads that can be contained within any cap. A safety strand 56 is also shown, and allows the torsion cover to be secured on the neck 52, and the container 50, in the event that the container 50 is vigorously agitated, such as the known paint mixing equipment, or fall accidentally. The handle fastening portion of the container 50 indicated by the reference number 58 is not formed by a circumferential indented ring, as in the container 10 and 30. Importantly, however, the handle fastening portion 58 of the container 50 contains a plurality of circumferentially spaced projections 60, which greatly increase the strength of the plastic container and allow it to be used in conventional paint mixing equipment, and still maintain the integrity of the container during vigorous agitation in the equipment. The projections 60, as shown in Figure 5, are indentations, or in other words, protrude from the interior surface of the container. It is understood that the projections 60 may be in the form of indentations as shown or protuberances from the exterior surface as shown by the projections 26 and 44- in Figures 1 and 4, respectively. Below the handle holding portion 58 is a body portion 62. The body 62 generally has a uniform outer wall and is preferably of circular cross section substantially from start to finish. Also, the handle grip portion 60 and neck 52 are preferably all of a circular cross section. The holding portion 58 of the container 50 can be expanded from the neck 52 to the body portion 62, although the exact configuration of the fastening portion 58 is not particularly critical. What is more usual is that the plastic container is provided with a series of separate projections 60 to provide the necessary strength for the plastic container to support the vigorous forces that are placed on the container during the paint mixing process. EXAMPLE 1 In this example, the rapidity of pouring dye from the plastic containers of this invention into quarter and 1/2 gallon sizes was compared to that of typically used quarter-metal cans. PROOF OF SPILL 1. 10.16 cm. (4 inches) diameter opening 2. 89 mm (3.5 inches) diameter opening Due to the larger opening than the two holes of the gothic key opener the reverted times were reduced 65-75% (10.15 seconds) per container with the one-quarter vessel of this invention. The larger opening allows the additional material to be recovered using a rubber kitchen spatula. The wasted material is significantly reduced by using the 1/2 gallon container when compared to two of the existing quarter cans. The residue colorant was reduced by an average of 1.7%. With just 60 seconds of scraping, an additional 0.4% can be recovered. The pour time for 1/2 gallon containers was less than 10 seconds to empty the container to a thin stream. The pour times on an equivalent basis for two one-quarter cans were over four times greater (40 seconds, not including the time to open the cans against 10 seconds for the 1/2 gallon). Without scraping, a 1.7% improvement in performance in high volume colorants in 1/2 gallon containers equals hundreds of thousands of dollars in annual savings carried out by the customer. The cost savings used are also carried out from faster pour times in the one-quart container using a reduction of 10 seconds per container at the time of pour and the fastest pour times in the container 1 / 2 gallon (10 seconds vs. 35 seconds) per container.