EP1356899A1 - Metal scissors and production process thereof - Google Patents
Metal scissors and production process thereof Download PDFInfo
- Publication number
- EP1356899A1 EP1356899A1 EP03004886A EP03004886A EP1356899A1 EP 1356899 A1 EP1356899 A1 EP 1356899A1 EP 03004886 A EP03004886 A EP 03004886A EP 03004886 A EP03004886 A EP 03004886A EP 1356899 A1 EP1356899 A1 EP 1356899A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating layer
- base material
- polymer compound
- layer
- scissors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B13/00—Hand shears; Scissors
- B26B13/12—Hand shears; Scissors characterised by the shape of the handles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B13/00—Hand shears; Scissors
Definitions
- the present invention relates to metal scissors used in a barber shop, a beauty salon and a shop for caring pets such as a dog and a cat and to a production process of the metal scissors.
- the grips of metal scissors used in a barber shop and a beauty salon are subjected to a variety of surface treatments such as glossing, a hair line finish and plating.
- surface treatments such as glossing, a hair line finish and plating.
- metal scissors with plastic insert molded grips or ion plated grips are commercially available.
- a first object of the present invention is to provide metal scissors having grips which give a good touch, are not liable to be slippery even when used by a wet hand and are free from the possibility that the surface of a base material is not exposed even when the surface of the grip is abraded or scratched.
- a second object of the present invention is to provide metal scissors having grips which give an extraordinar fit.
- a third object of the present invention is to provide metal scissors having grips which give a good touch, are not liable to be slippery even when used by a wet hand, are free from the possibility that the surface of a base material is not exposed even when the surface of the grip is abraded or scratched, and are coated with a protective coating film which does not come off easily.
- a fourth object of the present invention is to provide metal scissors having grips which give anaki fit.
- a fifth object of the present invention is to provide a process capable of mass-producing the above scissors efficiently at low costs.
- metal scissors of the present invention have grips each having a titanium coating layer formed on the surface of a base material and a polymer compound coating layer formed on the titanium coating layer, the polymer compound coating layer having excellent abrasion resistance and scratch resistance.
- the base material in the grip has moderate surface roughness with fine pits and projections on the surface
- the titanium coating layer, the polymer compound foundation layer and the polymer compound coating layer are laminated to such a thickness that does not impair the surface roughness of the base material so as to form fine pits and projections comparable to the surface roughness of the base material, on the surface of the polymer compound coating layer.
- a process for producing metal scissors according to the present invention comprises:
- the pair of scissors parts in the present invention are made of stainless steel or other known metals.
- the surface roughness of the base material in the grip is arbitrary. However, in consideration of sense of touch, slipperiness, a fit to a hand, and the like, its lower limit Ry is 12.5, and its upper limit Ry is 50. When the surface roughness is lower than the lower limit, pits and projections are so small that the grip is liable to be slippery, while when it is higher than the upper limit, the pits and projections are so large that the grip irritates skin excessively upon contact and causes pain in a hand.
- This surface roughness is set at an optimum value according to application purposes as in a barber shop and a beauty salon, individual differences, and other factors.
- the thickness of the titanium coating layer is about 0.8 to 1.2 ⁇ m.
- the color of the titanium coating layer may be any appropriate color in addition to blue, gray, black, gold and a rainbow color.
- the polymer compound foundation layer comprises clear paint such as a polyurethane for a base coat and may be any polymer compound member having excellent adhesion to the titanium coating layer.
- the thickness of the foundation layer is about 3 to 7 ⁇ m, desirably about 5 ⁇ m.
- Figs. 1 and 2 exemplify one embodiment of metal scissors of claim 1 of the present invention.
- Scissors 1 for use in a barber shop and a beauty salon comprise a pair of stainless steel scissors parts 2 and a shaft 3 which joins the stainless steel scissors parts 2 together.
- the pair of scissors parts 2 are wholly coated with a titanium coating layer 6.
- Grips 4 each comprise the titanium coating layer 6 which is formed on the smooth surface of a base material 5 and a polyurethane coating layer 7 which is formed on the layer 6 and has excellent abrasion resistance and scratch resistance.
- Fig. 3 exemplifies one embodiment of metal scissors of claim 2 of the present invention. Since its constitution is basically the same as that of the above embodiment of Fig. 1, descriptions on constituents common between them will be omitted, using the same reference numerals, and only constituents different between them will be described.
- Grips 4 each comprise a titanium coating layer 6 which is formed on the surface of a base material 5, a polyurethane foundation layer 8 for a base coat which is formed on the layer 6 and has excellent adhesion to the layer 6, and a polyurethane coating layer 7 which is formed on the layer 8 and has excellent abrasion resistance and scratch resistance.
- Fig. 4 exemplifies one embodiment of metal scissors of claim 3 of the present invention. Since its constitution is basically the same as that of the above embodiment of Fig. 1, descriptions on constituents common between them will be omitted, using the same reference numerals, and only constituents different between them will be described.
- Grips 4 each comprise a base material 5 with a surface 5a which has fine pits and projections thereon with a surface roughness Ry of 12.5 to 50, a titanium coating layer 6 which is formed on the surface of the base material 5, and a polyurethane coating layer 7 which is formed on the layer 6 and has excellent abrasion resistance and scratch resistance.
- the total thickness of the titanium coating layer 6 and the polyurethane coating layer 7 when they are laminated together is such a thickness that does not impair the surface roughness of the finely uneven surface 5a of the base material 5 so as to form a finely uneven surface 7a of the polyurethane coating layer 7 which is comparable to the surface roughness of the base material surface 5a.
- Fig. 5 exemplifies one embodiment of the metal scissors of claim 3 of the present invention. Since its constitution is basically the same as that of the above embodiment of Fig. 1, descriptions on constituents common between them will be omitted, using the same reference numerals, and only constituents different between them will be described.
- Grips 4 each comprise a base material 5 with a surface 5a which has fine pits and projections thereon with a surface roughness Ry of 12.5 to 50, a titanium coating layer 6 which is formed on the surface of the base material 5, a polyurethane foundation layer 8 for a base coat which is formed on the layer 6 and has excellent adhesion to the layer 6, and a polyurethane coating layer 7 which is formed on the layer 8 and has excellent abrasion resistance and scratch resistance.
- the total thickness of the titanium coating layer 6, the polyurethane foundation layer 8 for a base coat and the polyurethane coating layer 7 when they are laminated together is such a thickness that does not impair the surface roughness of the finely uneven surface 5a of the base material 5 so as to form a finely uneven surface 7a of the polyurethane coating layer 7 which is comparable to the surface roughness of the base material surface 5a.
- Figs. 6A to 6D show a production example of the above scissors of Fig. 5 as one embodiment of the production process of metal scissors of the present invention.
- Scissors 1 are prepared in accordance with the following steps.
- the surfaces of base materials 5 in grips 4 of a pair of scissors parts 2 are blast-treated so as to form a finely uneven base material surface 5a with a surface roughness Ry of 12.5 to 50.
- the scissors part 2 is wholly coated with titanium so as to form a titanium coating layer 6 whose thickness together with the thicknesses of all other layers 7 and 8 to which the layer 6 is laminated does not impair the surface roughness of the base material surface 5a.
- the polyurethane foundation layer 8 for a base coat which has excellent adhesion to the layer 6 is formed by baking coating such that the layer 8 has such a thickness that together with the thicknesses of all other layers 6 and 7 to which the layer 8 is laminated does not impair the surface roughness of the base material surface 5a.
- the polyurethane coating layer 7 which has excellent abrasion resistance and scratch resistance is baking-coated to such a thickness that together with the thicknesses of all other layers 6 and 8 to which the layer 7 is laminated does not impair the surface roughness of the base material surface 5a, thereby forming a finely uneven surface 7a of the polyurethane coating layer 7 which is comparable to the surface roughness of the base material surface 5a.
- the pair of scissors parts 2 are joined together by means of a shaft 3, thereby producing the scissors 1 with the grips 4 that each comprise the finely uneven base material 5 which has a surface roughness Ry of 12.5 to 50, the titanium coating layer 6 which is formed on the finely uneven base material surface 5a, the polyurethane foundation layer 8 for a base coat which is formed on the layer 6 and has excellent adhesion to the layer 6, and the polyurethane coating layer 7 which is formed on the layer 8 and has excellent abrasion resistance and scratch resistance.
- the titanium coating layer 6, the foundation layer 8 and the polyurethane coating layer 7 are formed in such a total thickness that does not impair the surface roughness of the finely uneven base material surface 5a of the base material 5 so as to form the finely uneven surface 7a of the polyurethane coating layer 7 which is comparable to the surface roughness of the base material surface 5a.
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Scissors And Nippers (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
- The present invention relates to metal scissors used in a barber shop, a beauty salon and a shop for caring pets such as a dog and a cat and to a production process of the metal scissors.
- For example, the grips of metal scissors used in a barber shop and a beauty salon are subjected to a variety of surface treatments such as glossing, a hair line finish and plating. Further, recently, metal scissors with plastic insert molded grips or ion plated grips are commercially available.
- However, the grips of all these products feel cold and hard when held in a hand and lack a good fit. Further, they also have a problem that they are liable to be slippery when used by a wet hand.
- To solve these problems, several metal scissors with devised grips have been proposed. However, since all of these metal scissors require separately molded synthetic resin or rubber parts to be attached thereto, they are not suitable for use in a barber shop and a beauty salon where metal scissors with a structurally complicated design are required. Particularly, for an article of this type which is required to make a user feel as if the article were a part of the user's hand, a fit is an important factor which cannot be overlooked, and such an article must be used freely by a user. Further, since a mold is required to form the synthetic resin or rubber molded parts, production of a variety of such metal scissors in small quantities results in relatively high costs and lacks practicability.
- To solve the problems, a first object of the present invention is to provide metal scissors having grips which give a good touch, are not liable to be slippery even when used by a wet hand and are free from the possibility that the surface of a base material is not exposed even when the surface of the grip is abraded or scratched. A second object of the present invention is to provide metal scissors having grips which give an exquisite fit. A third object of the present invention is to provide metal scissors having grips which give a good touch, are not liable to be slippery even when used by a wet hand, are free from the possibility that the surface of a base material is not exposed even when the surface of the grip is abraded or scratched, and are coated with a protective coating film which does not come off easily. A fourth object of the present invention is to provide metal scissors having grips which give an exquisite fit. A fifth object of the present invention is to provide a process capable of mass-producing the above scissors efficiently at low costs.
- To achieve the above objects of the present invention, metal scissors of the present invention have grips each having a titanium coating layer formed on the surface of a base material and a polymer compound coating layer formed on the titanium coating layer, the polymer compound coating layer having excellent abrasion resistance and scratch resistance.
- Further, in the metal scissors of the present invention, the base material in the grip has moderate surface roughness with fine pits and projections on the surface, and the titanium coating layer and the polymer compound coating layer are laminated to such a thickness that does not impair the surface roughness of the base material so as to form fine pits and projections comparable to the surface roughness of the base material, on the surface of the polymer compound coating layer.
- Further, metal scissors of the present invention have grips each having a titanium coating layer formed on the surface of a base material; a polymer compound foundation layer formed on the titanium coating layer, the foundation layer has excellent adhesion to the titanium coating layer; and a polymer compound coating layer formed on the polymer compound foundation layer, the coating layer having excellent abrasion resistance and scratch resistance.
- Further, in the metal scissors of the present invention, the base material in the grip has moderate surface roughness with fine pits and projections on the surface, and the titanium coating layer, the polymer compound foundation layer and the polymer compound coating layer are laminated to such a thickness that does not impair the surface roughness of the base material so as to form fine pits and projections comparable to the surface roughness of the base material, on the surface of the polymer compound coating layer.
- Further, a process for producing metal scissors according to the present invention comprises:
- a first step of blast-treating the surfaces of base materials in the grips of a pair of scissors parts so as to cause them to have moderate surface roughness with fine pits and projections formed on the surfaces,
- a second step of titanium-coating the whole scissors part so as to form a titanium coating layer whose thickness, together with the thicknesses of all other layers to which the titanium coating layer is laminated, does not impair the surface roughness of the base material,
- a third step of forming a polymer compound foundation layer on the titanium coating layer in the grip by baking coating, the foundation layer having a thickness which together with the
- thicknesses of all other layers to which the foundation layer is laminated does not impair the surface roughness of the base material and also having excellent adhesion to the titanium coating layer,
- a fourth step of forming a polymer compound coating layer on the polymer compound foundation layer in the grip by baking coating, the coating layer having a thickness which together with the thicknesses of all other layers to which the coating layer is laminated does not impair the surface roughness of the base material and also having excellent abrasion resistance and scratch resistance, and
- a fifth step of joining the pair of scissors parts together.
-
- The pair of scissors parts in the present invention are made of stainless steel or other known metals. The surface roughness of the base material in the grip is arbitrary. However, in consideration of sense of touch, slipperiness, a fit to a hand, and the like, its lower limit Ry is 12.5, and its upper limit Ry is 50. When the surface roughness is lower than the lower limit, pits and projections are so small that the grip is liable to be slippery, while when it is higher than the upper limit, the pits and projections are so large that the grip irritates skin excessively upon contact and causes pain in a hand. This surface roughness is set at an optimum value according to application purposes as in a barber shop and a beauty salon, individual differences, and other factors.
- The thickness of the titanium coating layer is about 0.8 to 1.2 µm. The color of the titanium coating layer may be any appropriate color in addition to blue, gray, black, gold and a rainbow color.
- The polymer compound foundation layer comprises clear paint such as a polyurethane for a base coat and may be any polymer compound member having excellent adhesion to the titanium coating layer. The thickness of the foundation layer is about 3 to 7 µm, desirably about 5 µm.
- The polymer compound coating layer comprises a synthetic resin material such as a polyurethane resin or an acrylic resin or synthetic rubber and may be any polymer compound having excellent abrasion resistance and scratch resistance. The thickness of the coating layer is about 15 to 25 µm, desirably about 20 µm. The total thickness of the titanium coating layer, the foundation layer and the coating layer when they are laminated together is such a thickness that does not impair the surface roughness of the finely uneven surface of the base material in the grip and allows the surface roughness of the base material to be reflected directly on the surface of the coating layer, i.e., about 19 to 33 µm, desirably about 25 µm.
-
- Fig. 1 is a front view of an embodiment of metal scissors of the present invention,
- Fig. 2 is an enlarged cross-sectional diagram of a portion of the embodiment shown in Fig. 1,
- Fig. 3 is an enlarged cross-sectional diagram of a portion of another embodiment of the metal scissors of the present invention,
- Fig. 4 is an enlarged cross-sectional diagram of a portion of another embodiment of the metal scissors of the present invention,
- Fig. 5 is an enlarged cross-sectional diagram of a portion of another embodiment of the metal scissors of the present invention, and
- Figs. 6A-6D are front views of metal scissors in sequential steps in an embodiment of a production process of metal scissors of the present invention. Fig.6A shows the metal scissors in a first step, Fig.6B shows the metal scissors in a second step, Fig. 6C shows the metal scissors in a third step, and Fig.6D shows the metal scissors in a fourth step.
-
- Figs. 1 and 2 exemplify one embodiment of metal scissors of
claim 1 of the present invention.Scissors 1 for use in a barber shop and a beauty salon comprise a pair of stainlesssteel scissors parts 2 and ashaft 3 which joins the stainlesssteel scissors parts 2 together. - The pair of
scissors parts 2 are wholly coated with atitanium coating layer 6.Grips 4 each comprise thetitanium coating layer 6 which is formed on the smooth surface of abase material 5 and apolyurethane coating layer 7 which is formed on thelayer 6 and has excellent abrasion resistance and scratch resistance. - Fig. 3 exemplifies one embodiment of metal scissors of
claim 2 of the present invention. Since its constitution is basically the same as that of the above embodiment of Fig. 1, descriptions on constituents common between them will be omitted, using the same reference numerals, and only constituents different between them will be described. -
Grips 4 each comprise atitanium coating layer 6 which is formed on the surface of abase material 5, apolyurethane foundation layer 8 for a base coat which is formed on thelayer 6 and has excellent adhesion to thelayer 6, and apolyurethane coating layer 7 which is formed on thelayer 8 and has excellent abrasion resistance and scratch resistance. - Fig. 4 exemplifies one embodiment of metal scissors of
claim 3 of the present invention. Since its constitution is basically the same as that of the above embodiment of Fig. 1, descriptions on constituents common between them will be omitted, using the same reference numerals, and only constituents different between them will be described. -
Grips 4 each comprise abase material 5 with asurface 5a which has fine pits and projections thereon with a surface roughness Ry of 12.5 to 50, atitanium coating layer 6 which is formed on the surface of thebase material 5, and apolyurethane coating layer 7 which is formed on thelayer 6 and has excellent abrasion resistance and scratch resistance. The total thickness of thetitanium coating layer 6 and thepolyurethane coating layer 7 when they are laminated together is such a thickness that does not impair the surface roughness of the finelyuneven surface 5a of thebase material 5 so as to form a finelyuneven surface 7a of thepolyurethane coating layer 7 which is comparable to the surface roughness of thebase material surface 5a. - Fig. 5 exemplifies one embodiment of the metal scissors of
claim 3 of the present invention. Since its constitution is basically the same as that of the above embodiment of Fig. 1, descriptions on constituents common between them will be omitted, using the same reference numerals, and only constituents different between them will be described. -
Grips 4 each comprise abase material 5 with asurface 5a which has fine pits and projections thereon with a surface roughness Ry of 12.5 to 50, atitanium coating layer 6 which is formed on the surface of thebase material 5, apolyurethane foundation layer 8 for a base coat which is formed on thelayer 6 and has excellent adhesion to thelayer 6, and apolyurethane coating layer 7 which is formed on thelayer 8 and has excellent abrasion resistance and scratch resistance. The total thickness of thetitanium coating layer 6, thepolyurethane foundation layer 8 for a base coat and thepolyurethane coating layer 7 when they are laminated together is such a thickness that does not impair the surface roughness of the finelyuneven surface 5a of thebase material 5 so as to form a finelyuneven surface 7a of thepolyurethane coating layer 7 which is comparable to the surface roughness of thebase material surface 5a. - Figs. 6A to 6D show a production example of the above scissors of Fig. 5 as one embodiment of the production process of metal scissors of the present invention.
Scissors 1 are prepared in accordance with the following steps. - The surfaces of
base materials 5 ingrips 4 of a pair ofscissors parts 2 are blast-treated so as to form a finely unevenbase material surface 5a with a surface roughness Ry of 12.5 to 50. - The
scissors part 2 is wholly coated with titanium so as to form atitanium coating layer 6 whose thickness together with the thicknesses of allother layers layer 6 is laminated does not impair the surface roughness of thebase material surface 5a. - On the
titanium coating layer 6 in thegrip 4, thepolyurethane foundation layer 8 for a base coat which has excellent adhesion to thelayer 6 is formed by baking coating such that thelayer 8 has such a thickness that together with the thicknesses of allother layers layer 8 is laminated does not impair the surface roughness of thebase material surface 5a. - On the
polyurethane foundation layer 8 for a base coat in thegrip 4, thepolyurethane coating layer 7 which has excellent abrasion resistance and scratch resistance is baking-coated to such a thickness that together with the thicknesses of allother layers layer 7 is laminated does not impair the surface roughness of thebase material surface 5a, thereby forming a finelyuneven surface 7a of thepolyurethane coating layer 7 which is comparable to the surface roughness of thebase material surface 5a. - The pair of
scissors parts 2 are joined together by means of ashaft 3, thereby producing thescissors 1 with thegrips 4 that each comprise the finelyuneven base material 5 which has a surface roughness Ry of 12.5 to 50, thetitanium coating layer 6 which is formed on the finely unevenbase material surface 5a, thepolyurethane foundation layer 8 for a base coat which is formed on thelayer 6 and has excellent adhesion to thelayer 6, and thepolyurethane coating layer 7 which is formed on thelayer 8 and has excellent abrasion resistance and scratch resistance. Thetitanium coating layer 6, thefoundation layer 8 and thepolyurethane coating layer 7 are formed in such a total thickness that does not impair the surface roughness of the finely unevenbase material surface 5a of thebase material 5 so as to form the finelyuneven surface 7a of thepolyurethane coating layer 7 which is comparable to the surface roughness of thebase material surface 5a. - A. According to
claim 1, metal scissors of the present invention provide a unique, favorable touch, are not liable to be slippery even when used by a wet hand and are highly useful in practical use. Further, even when the surface of a grip is abraded or scratched, the surface of a base material is not exposed since it is protected by a titanium coating layer. In addition, the surfaces of the grips have a unique color ascribable to the titanium coating layer and a polymer compound coating layer. Further, allergy to metals can be prevented completely due to the presence of the polymer compound coating layer. - B. According to
claim 2, since a foundation layer serves as a medium for joining the titanium coating layer and the coating layer together, the protective coating on the surface of the grip does not come off easily, resulting in high usefulness in practical use. Further, the metal scissors of the present invention have a two-tone color ascribable to the foundation layer and the coating layer and are therefore excellent in design as well. - C. According to
claim 3, metal scissors of the present invention provide a good touch, are not liable to be slippery even when used by a wet hand and provide an exquisite fit, due to the finely uneven surfaces of grips. Further, even when the surface of the grip is abraded or scratched, the surface of a base material is not exposed since it is protected by a titanium coating layer, resulting in high usefulness in practical use. In addition, the surfaces of the grips show a unique color due to irregular reflection caused by pits and projections on the surfaces and have a unique color ascribable to the titanium coating layer and a polymer compound coating layer. Furthermore, allergy to metals can be prevented completely due to the presence of the polymer compound coating layer. - D. According to
claim 4, since a foundation layer serves as a medium for joining the titanium coating layer and the coating layer together, the protective coating on the surface of the grip does not come off easily, resulting in high usefulness in practical use. Further, the metal scissors of the present invention have a two-tone color ascribable to the foundation layer and the coating layer and are therefore excellent in design as well. - E. According to
claim 5, scissors having the effects of the invention ofclaim 4 can be mass-produced efficiently at low costs. Further, since a polymer compound foundation layer and a polymer compound coating layer on the surface of a grip are formed by baking coating, no expensive mold is required. In addition, in general, when blades are to be coated with titanium, a step of masking grips and then removing masking materials after titanium coating is necessary. The step is obviated in the present invention, resulting in high productivity. -
- Having described specific preferred embodiments of the invention with reference to the accompanying drawings, it will be appreciated that the present invention is not limited to those precise embodiments, and that various changes and modifications can be effected therein by one of ordinary skill in the art without departing from the scope of the invention as defined by the appended claims.
Claims (5)
- Metal scissors with grips each having a titanium coating layer formed on the surface of a base material and a polymer compound coating layer formed on the titanium coating layer, the polymer compound coating layer having excellent abrasion resistance and scratch resistance.
- The metal scissors of claim 1, wherein the base material in the grip has moderate surface roughness with fine pits and projections on the surface, and the titanium coating layer and the polymer compound coating layer are laminated to such a thickness that does not impair the surface roughness of the base material so as to form fine pits and projections comparable to the surface roughness of the base material, on the surface of the polymer compound coating layer.
- Metal scissors with grips each having:a titanium coating layer formed on the surface of a base material, a polymer compound foundation layer formed on the titanium coating layer, the foundation layer has excellent adhesion to the titanium coating layer, anda polymer compound coating layer formed on the polymer compound foundation layer, the coating layer having excellent abrasion resistance and scratch resistance.
- The metal scissors of claim 3, wherein the base material in the grip has moderate surface roughness with fine pits and projections on the surface, and the titanium coating layer, the polymer compound foundation layer and the polymer compound coating layer are laminated to such a thickness that does not impair the surface roughness of the base material so as to form fine pits and projections comparable to the surface roughness of the base material, on the surface of the polymer compound coating layer.
- A process for producing metal scissors which comprises:a first step of blast-treating the surfaces of base materials in the grips of a pair of scissors parts so as to cause them to have moderate surface roughness with fine pits and projections formed on the surfaces,a second step of titanium-coating the whole scissors part so as to form a titanium coating layer whose thickness, together with the thicknesses of all other layers to which the titanium coating layer is laminated, does not impair the surface roughness of the base material,a third step of forming a polymer compound foundation layer on the titanium coating layer in the grip by baking coating, the foundation layer having a thickness which together with the thicknesses of all other layers to which the foundation layer is laminated does not impair the surface roughness of the base material and also having excellent adhesion to the titanium coating layer,a fourth step of forming a polymer compound coating layer on the polymer compound foundation layer in the grip by baking coating, the coating layer having a thickness which together with the thicknesses of all other layers to which the coating layer is laminated does not impair the surface roughness of the base material and also having excellent abrasion resistance and scratch resistance, anda fifth step of joining the pair of scissors parts together.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002126478 | 2002-04-26 | ||
JP2002126478A JP4342769B2 (en) | 2002-04-26 | 2002-04-26 | Metal bowl |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1356899A1 true EP1356899A1 (en) | 2003-10-29 |
EP1356899B1 EP1356899B1 (en) | 2005-11-09 |
Family
ID=28786827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20030004886 Expired - Fee Related EP1356899B1 (en) | 2002-04-26 | 2003-03-06 | Metal scissors and production process thereof |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1356899B1 (en) |
JP (1) | JP4342769B2 (en) |
DE (2) | DE60302173T2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4926687B2 (en) * | 2006-12-14 | 2012-05-09 | 英行 野尻 | Cosmetic bag and method for producing the same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5152774A (en) * | 1988-10-17 | 1992-10-06 | Schroeder William A | Surgical instrument having a toughened wearing surface and method of making the same |
WO1999007527A1 (en) * | 1997-08-12 | 1999-02-18 | Molecular Metallurgy, Inc. | Coated manicure implement |
-
2002
- 2002-04-26 JP JP2002126478A patent/JP4342769B2/en not_active Expired - Lifetime
-
2003
- 2003-03-06 DE DE2003602173 patent/DE60302173T2/en not_active Expired - Lifetime
- 2003-03-06 DE DE2003004886 patent/DE03004886T1/en active Pending
- 2003-03-06 EP EP20030004886 patent/EP1356899B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5152774A (en) * | 1988-10-17 | 1992-10-06 | Schroeder William A | Surgical instrument having a toughened wearing surface and method of making the same |
WO1999007527A1 (en) * | 1997-08-12 | 1999-02-18 | Molecular Metallurgy, Inc. | Coated manicure implement |
Also Published As
Publication number | Publication date |
---|---|
JP4342769B2 (en) | 2009-10-14 |
DE03004886T1 (en) | 2004-08-26 |
DE60302173D1 (en) | 2005-12-15 |
EP1356899B1 (en) | 2005-11-09 |
DE60302173T2 (en) | 2006-07-27 |
JP2003311040A (en) | 2003-11-05 |
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