JPS5827829Y2 - Painting roller brush - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a roller brush that can apply a thick coating or is suitable for roller coating of aggregate-containing paint.

The roller method, which uses a roller brush as a painting tool, has become widely used in the fields of architectural painting and ship painting in order to simplify the spray painting method, save labor, and prevent pollution caused by paint scattering. There is.

Roller brushes that have been commonly used include flocked cloth,
This product is called a Natsupu roller brush with a roller cover made of raised cloth, etc., but it was unsuitable for thick coating or roller coating of aggregate-containing paint.

For this reason, polyurethane porous foam roller brushes have been provided for the purpose of thick coating.

This roller brush holds the paint well and can be applied thickly.
Moreover, it is possible to obtain a finish with a textured pattern.

However, with regard to the suitability of aggregate-containing paints for rollers, it has been a step forward to apply the coating in a state where the aggregate is evenly dispersed.

Further, porous foam roller brushes have the disadvantage that since the roller cover is made of polyurethane, they have poor solvent resistance, and when a solvent-based paint is used, the roller cover swells and becomes unusable.

The present invention solves the above-mentioned problems and provides a roller brush that has good roller suitability for aggregate-containing paints and is also excellent for thick coating paints.

That is, the roller brush of the present invention is a roller brush using synthetic resin fiber yarn for the roller cover, and the roller cover has a structure in which the synthetic resin fiber yarn bent into a loop is accumulated in a two-dimensional and three-dimensional manner. It is formed by a porous network structure that is bonded at the contact point of the threads, and relates to a roller brush in which this structure is bonded to the core of the roller brush.

A feature of the present invention is that the roller cover has a planar or three-dimensional porous network structure using synthetic resin fiber threads.

The manufacturing method of the roller cover is similar to the manufacturing method of non-woven fabric, and for example, synthetic resin fiber threads with a diameter of about 0.5 mm are accumulated in a plane while forming loops and arranged in a porous network structure. It is made into a sheet of about 1 cm to form a planar network structure, which is then immersed as it is or in multiple layers, immersed in an adhesive liquid, and then squeezed and joined at the contact points of the component yarns to create a three-dimensional structure. A roller cover with a net-like structure can be obtained.

A roller cover can be made by cutting a sheet and gluing or sewing both ends together, or it can be made into a cylindrical shape by punching and cutting a laminated sheet with a thickness that matches the roller width. You can get cover.

Known synthetic resin fiber threads such as nylon, polyester, polypropylene, polyethylene, acrylic, and vinyl acetate-vinyl chloride copolymer can be used.

If nylon, polypropylene, polyester, or the like, which has excellent solvent resistance, is used, the coating material will not swell even when applying a solvent-based paint with a roller, so that it can maintain good roller suitability.

As the adhesive, known adhesives such as epoxy, acrylic, polyester, and urethane can be used.

Adhesives are used to bond synthetic resin threads together, so when using solvent-based paints, unless you use an adhesive with excellent solvent resistance, the synthetic resin threads will not bond together during roller coating. comes off and becomes unusable.

The thickness of the roller cover is suitably in the range of 0.5 to 3 cm.

If it is thinner than 0.5 cm, the thick coating properties during roller coating will be poor, and conversely, if it is thicker than 3 cm, there will be no noticeable difference in the effect.

The porous network structure of the roller cover of the present invention does not need to be a regular network structure, and may be irregular.For example, the network structure may be completely irregular as shown in FIG. It may also be something in which the threads intertwine and are joined with adhesive to create a net-like shape.

The reason why the roller cover has a porous network structure is that it allows the paint to be absorbed better, making it suitable for thick coating, and when painting aggregate-containing paints, it allows the aggregate to be applied uniformly to the surface being coated. This is because the mesh is sparse rather than dense, and if the desired thickness is achieved, the structure may be such that the paint is sufficiently contained inside the cover.

The present invention will be explained below with reference to the drawings.

FIG. 1 is a plan view of the roller cover 1 spread out into a sheet shape, and FIG. 2 is a cross-sectional view thereof, in which the synthetic resin fiber yarn 2 is bent into a loop shape to create an irregularly planar and three-dimensional structure. It is a porous network structure in which the holes are arranged and have a thickness of about 2 cnn.

The entire adhesive sheet of the synthetic resin fiber threads 2 is bonded to each other with an adhesive at their contact points, so that the synthetic resin fiber threads 2 have elastic shape retention properties.

When this product is made into a sheet, it has a porous network structure in which the paint is freely contained from the surface to the inside.

FIG. 3 shows a roller brush 3 according to the present invention, in which a roller cover 1 is individually attached to a core 4 with a suitable adhesive, and this is fitted onto a support rod of the roller brush 3. .

[Brief explanation of drawings]

FIG. 1 is a plan view of a roller cover, FIG. 2 is a sectional view of the roller cover, and FIG. 3 is a roller brush according to the present invention.

Claims (1)

[Scope of utility model registration request] A roller brush for painting, characterized in that the roller cover is a porous network structure in which synthetic resin fiber threads bent into a loop shape are accumulated in a two-dimensional and three-dimensional manner and adhered at the contact points of the constituent threads.