DE202017006539U1 - Multistage composite coating system for the application of allergy-free and antimicrobial surfaces to consumer goods - Google Patents

Abstract

Composite coating system, characterized in that hereby special needs items from the field of medicine, personal care, cosmetics, manicure, pedicure and related technologies in which can be done during normal use, skin contact or even contact through small wounds, this in particular come into consideration z. As scissors, nail scissors, baby scissors, nose scissors, embroidery scissors, pruning shears, paper scissors, household scissors, hair scissors, nail pliers, skin nippers, nail clippers, tweezers of all kinds, automatic tweezers, skin pushers, nail cleaners, dermal knives, nail files, eyelash curlers and closures of flacons or can lids and accessories for shaving needs; Surfaces of these composite coating systems are nickel-free, EU-RoHS, ChemRRV (Switzerland) and China-RoHS compliant, in accordance with EU Directives 94/27 / EC and 2004/96 / EC ff and Annex XVII, Entry 27, the REACH Regulation, EC Tex 100 ff (antiallergic) and have antimicrobial properties.

Description

1. Composite coating system of household and personal care household goods as well as cutlery, manicure and pedicure articles with the aim of designing the surface of the workpieces in such a way that no release of nickel takes place and the new federal regulations and EU directives 94/27 / EC and 2004/96 / EC et seq. And Annex XVII, entry 27, which complies with the REACH Regulation.

So far, the applicant's production goods have been nickel-plated to a high gloss and thus have a mirror-finish which can be addressed by the end user. This process is state of the art and has long been used in competitive and similar commercial production processes.

The explosive nickel allergies that have been spreading throughout the world for some time are worrying. National and international health organizations have led lawmakers to regulate the use of nickel as far as skin contact is possible. These restrictions are already common in all industrial nations such. Eg whole Europe, USA, China, India etc.

The values to be met by the manufacturers in the EU Directives 94/27 / EC and 2004/96 / EC et seq. And Annex XVII, Entry 27 of the REACH Regulation for the placing of consumer durables on the market are described below.

Articles of daily use that come into contact with skin "directly and for longer" may not release more than 0.5 μg nickel / cm ² / week thereafter. In order to provide clarity to consumers and manufacturers, ECHA (European Chemicals Agency) has produced a scientific study, which is to be understood as "prolonged skin contact" in the context of nickel limitation. In 2014, the European Chemicals Agency redefined what exactly should be understood by prolonged contact. This information was already presented in 2014 and regulated the term prolonged contact of the skin with nickel-containing objects.

• > zehn Minuten bei drei oder mehr Gelegenheiten innerhalb von zwei Wochen oder
• > 30 Minuten bei einer oder mehreren Gelegenheiten innerhalb von zwei Wochen

nicht mehr als $$\mathrm{0,5}\mathrm{\mu }{\text{g/cm}}^{\text{2}}\text{/Woche}$$

betragen darf.Herein is regulated that the maximum nickel emission

• > ten minutes on three or more occasions within two weeks or
• > 30 minutes on one or more occasions within two weeks

not more than $$0.5\mathrm{\mu }{\text{g / cm}}^{\text{2}}\text{/Week}$$

may be.

The legislator has implemented the European Nickel Ordinance (§ 27, Ann. XVII, Reg. (EC) No .: 1907/2006) into national law with the 7th Amendment to the Consumer Goods Regulation.

Since manufacturers of commodities - within the meaning of these regulations - can not regulate the end user, how often and how long he has skin contact with these commodities, a general rethinking of manufacturers and changing their coating methods is imperative.

2. At this point, the new composite coating system begins. This system produces a surface coating that is completely nickel-free and also has a scientifically proven antimicrobial surface. Articles of daily use treated solely with this skin-friendly surface coating process may be marketed as "Nickel Free, RoHS Compliant and Antimicrobial".

This new surface coating system is specifically designed for medical, personal care, cosmetics, manicure, pedicure, and related technologies such as medical supplies. Scissors, nail scissors, baby scissors, nose scissors, embroidery scissors, foot scissors, paper scissors, household scissors, hair scissors, nail nippers, skin nippers, nail clippers, tweezers of all kinds, automatic tweezers, Skin pushers, nail cleaners, skin knives, nail files, eyelash curlers and closures of bottles or can lids and accessories for shaving needs, have been developed.

By applying the above-described everyday objects, skin irritations even small open wounds may occur despite proper use by the end user. By treating the articles of manufacture with this new surface coating system, it is ensured that nickel emissions can not occur and the antimicrobial properties of the surfaces minimize the risk of bacteria-induced inflammation.

This new surface coating system may be applied to the aforesaid commodities made of steel, preferably of grades C45E + LC, C75S DIN EN 1013-4 / 10140 as well as QST32 after DIN EN 10204-3.1 , Stainless steel EN 10088-3, copper and its alloys as well as after appropriate pretreatments on aluminum, titanium, plastics and other non-metallic materials.

3. The surface coating system is based on the new technological knowledge of at least 2 advantageously 3 to 5 electrolytically applied in the composite metal layers on the above-described substrates of different structure, color and gloss.

This composite system is based on the training, depending on the requirements of one or two adhesive layers, which ensure that the entire layer system, even in any subsequent mechanical processes, has a sufficiently good adhesion. This adhesive layer may consist of brass, yellow bronze or copper and its alloys with at least 75% Cu content. The expression of this adhesive layer should have a vertical columnar structure. The layer thickness to be applied should be 2.5 to 10 μm, depending on the geometry of the workpieces. For this purpose, preferably cyanide galvanic treatment methods are used, which are available in the relevant retailers. However, it must be ensured that these processes do not contain arsenic, lead, tellurium, cobalt, nickel or antimony. Cyanide-free processes are also available from specialist retailers, but care must be taken that they ensure the required adhesion with the base material.

The base layer is applied by conventional rinsing and Dekapierprozessen directly on the existing adhesive layer. This base layer can consist of copper and its alloys with at least 80% Cu or silver. The base layer should have a pronounced horizontal, lamellar structure and may contain traces of sulfur and carbon. It can be prepared from strongly acidic electrolytes based on sulfuric acid, methanesulfonic acid, borofluoric acid, sulfamate-based or thiosulfate-based. For this purpose, electrolytes in the relevant retailers are available. Depending on the decorative requirements, the base layers should look shiny to high-gloss and have a thickness of 6 - 25 μm.

The cover layer is also applied after conventional rinsing and Dekapierprozessen now directly on the existing base layer. The top layer consists of ternary alloys of copper, tin, zinc and can have a silvery-white or golden-yellow shiny appearance depending on requirements. A silver-white, glossy cover layer consists of 50-55% Cu, 30-45% Sn, 5-18% Zn. Golden yellow cover layers consist of 75-85% Cu, 7-15% Sn, 1.5-8% Zn. These Covering layers, which at the same time also serve as protective layers with which the users of the utility articles have skin contact, must in principle not contain the elements antimony, lead, tellurium, nickel and cobalt. Depending on the geometry of the workpieces, these cover layers should have a layer thickness of 4 - 15 μm. For this purpose, corresponding electrolytes, cyanide-containing or cyanide-free in the relevant retailers are available.

In addition to these cover layers, one or more top layers can also be applied as required or required. These top layers can have different colorations, but must be free of antimony, lead, tellurium, nickel and cobalt. This applies in particular to glossy, hard-gloss or alloy gold layers as well as to rhodium, silver and chromium.

4. The new modular composite coating system can be used in all currently known technical equipment and production equipment. In particular, this comes into question frame or Rahmenplattierung in manual or automatically controlled systems, mass processing in drum processes, manually or automatically controlled, Glockengalvanisier- or vibration coating equipment, tape, wire, or pulling equipment and individual item production.

Likewise, the full or partial internal coating of hollow parts or workpieces of similar geometry both within the coating liquids as well as outside by means of pumping, applying by electro-steam or galvanizing the corresponding medium feasible.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited non-patent literature

• DIN EN 1013-4 / 10140 [0012]
• DIN EN 10204-3.1 [0012]

Claims (9)

Composite coating system, characterized in that hereby special needs items from the field of medicine, personal care, cosmetics, manicure, pedicure and related technologies in which can be done during normal use, skin contact or even contact through small wounds, this come in particular into consideration z. As scissors, nail scissors, baby scissors, nose scissors, embroidery scissors, pruning shears, paper scissors, household scissors, hair scissors, nail pliers, skin nippers, nail clippers, tweezers of all kinds, automatic tweezers, skin pushers, nail cleaners, dermal knives, nail files, eyelash curlers and closures of flacons or can lids and accessories for shaving needs; Surfaces of these composite coating systems are nickel-free, EU-RoHS, ChemRRV (Switzerland) and China-RoHS compliant, in accordance with EU Directives 94/27 / EC and 2004/96 / EC ff and Annex XVII, Entry 27, the REACH Regulation, EC Tex 100 ff (antiallergic) and have antimicrobial properties. Composite coating system, characterized in that it is based on the technological knowledge of at least 2 advantageously 3 - 5 electrolytically composite in a composite metal or alloy layers on the above substrates of different structure, color and gloss and this surface coating system on the following utility items made of steel, preferably the Grades C45E + LC, C75S according to DIN EN 1013-4 / 10140 and QST32 according to DIN EN 10204-3.1, stainless steel, copper and its alloys, as well as suitable pretreatments on aluminum, titanium, plastics and other non-metallic materials. Composite coating system, characterized in that with this developed technology, nickel-free coatings of consumer products, in which a protective or cover layer with antimicrobial and anti-allergic effect is pronounced, are produced; In this case, the coatings can also be made as corrosion protection, diffusion barrier, protective layer with excellent abrasion and sliding properties or as a whole-part or internal coating with this system. Composite coating system, characterized in that it consists of one or more, depending on the properties of the base material, applied adhesive layer and this adhesive layer of brass, yellow bronze or copper and its alloys with min. 75% Cu content, gold, silver or iron may be, the Formation of this adhesive layer has a vertical columnar structure and the layer thickness to be applied should be 2.5 -10 microns depending on the geometry of the workpieces. Composite coating system characterized in that it consists of a base layer made of copper and its alloys with at least 80% Cu or silver wherein the base layer has a pronounced horizontal lamellar structure and contains traces of sulfur and carbon. it can be prepared from strongly acidic, neutral or alkaline electrolytes based on sulfuric acid, methanesulfonic acid, borofluoric acid, sulfamate-based or thiosulfate-based, the base layers depending on the decorative requirement of the composite layer system look shiny to mirror-high gloss and have a layer thickness of 6 - 25 microns should. Composite coating system which is characterized in that it consists of one or more cover layers, which have a ternary alloys of copper, tin, zinc and depending on the requirements of a silver-white or golden yellow shiny appearance with a silver-white, glossy cover layer of 50 - 55% Cu, 30 -45% Sn, 5 - 18% Zn is present and golden yellow cover layers consist of 75-85% Cu, 7 -15% Sn, 1.5-8% Zn; These cover layers, which at the same time also serve as protective layers with which the users of the articles of daily use have skin contact, must in principle not contain the elements antimony, lead, tellurium, nickel and cobalt, in addition these cover layers should, depending on the geometry of the workpieces, have a layer thickness of at least 4 -15 μm or more. Composite coating system, characterized in that in addition to these cover layers and as required or requirement one or more top layers can be additionally applied, these top layers may have different colorations, but must be free of antimony, lead, tellurium, nickel and cobalt, in particular this also applies for gloss, hard gloss or gold alloy layers as well as for rhodium, silver and chromium. Composite coating system characterized in that for the deposition of successively applied adhesive, base, cover or top layers can be done by standard available in the relevant retailers electrolytes, it can be reason of this in all currently known technical Operate plant equipment and production equipment of the department, in particular come into question, frame or Rahmenplattierung in manual or automatically controlled systems, bulk processing in drum processes, manually or automatically controlled, Glockengalvanisier- or vibration coating equipment, tape, wire, or pass-through systems and individual item production , Composite coating system, characterized in that the full or partial inner coating of hollow parts or workpieces of similar geometry can be carried out both within the coating liquids as well as outside by pumping, applying by electrotamping or galvanizing the corresponding medium.