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Patent Abstract
Skin irritation is a common problem to those who wear potentially
skin irritating jewelry such as pierced earrings. The present invention
provides a coated-medicated jewelry article that thwarts skin irritation
and may provide relief for irritated skin. The coating contains
a film-former and optionally a medicament.
Patent Claims
1. Coated jewelry comprising a jewelry substrate, a layer of a dried
film coated onto said substrate, said film containing a film-former,
and a medicament.
2. The coated jewelry of claim 1, wherein the film-former is collodion.
3. The coated jewelry of claim 1, wherein the film-former is a
natural resin.
4. The coated jewelry of claim 1, wherein the film-former is a
synthetic resin.
5. The coated jewelry of claim 1, wherein the medicament is an
antibiotic.
6. The coated jewelry of claim 5, wherein the medicament is bacitracin
or polymyxin.
7. The coated jewelry of claim 1, wherein the medicament is a steroid.
8. The coated jewelry of claim 7, wherein the steroid is hydrocortisone.
9. The coated jewelry of claim 1, wherein the medicament is a combination
of a steroid and an antibiotic.
10. The coated jewelry of claim 9, wherein the steroid is hydrocortisone.
11. The coated jewelry of claim 1, wherein the jewelry is for piercing
the body.
12. The coated jewelry of claim 11, wherein the piercing is earrings.
13. Coated jewelry comprising a jewelry substrate, a layer of a
dried collodion film coated onto said substrate.
14. The coated jewelry of claim 13 wherein said jewelry substrate
is pierced earrings.
15. A method for producing irritant-free jewelry comprising the
steps of applying a coating comprising a film-former and a medicament
onto jewelry and drying the coating to produce a dried film coated
on said jewelry.
16. The method of claim 15, wherein the film-former is collodion.
17. The method of claim 15, wherein the film-former is a resin.
18. The method of claim 15, wherein the medicament is an antibiotic.
19. The method of claim 15, wherein the medicament is hydrocortisone.
20. The method of claim 15, wherein the coating is applied by rolling,
dipping, dripping, spraying, swabbing and wiping said coating, as
a liquid onto said jewelry.
Patent Description
FIELD OF THE INVENTION
[0001]This invention relates to coated jewelry to prevent and/or
alleviate skin irritations.
BACKGROUND OF THE INVENTION
[0002]Skin sensitivity can be heightened by constant contact with
potentially skin-irritating objects, i.e. watches, rings, bracelets,
piercings such as earrings. Such sensitivity is prevalent with pierced
earrings worn through pierced ear openings. The discussion of sensitivity
to the above-listed skin irritating objects will be exemplified
below using the following discussion on pierced earrings.
[0003]Numerous people have experienced difficulty and discomfort
in wearing earrings suspended from pierced ear openings through
the earlobes. One source of problems with pierced earrings has resulted
from the sensitivity some people have toward materials that come
in contact with the exterior skin surface and/or the tissue within
the pierced openings. For example, certain people have an allergic
reaction to contact with metals, particularly nickel alloys. In
some cases metals are actually absorbed through the skin or ear
tissue and result in infection and/or illness. Plastic materials
used in earrings have also been a source of irritation and discomfort
due to their relatively coarse surface textures and molding seams
and/or tissue permeability.
[0004]Bacterial infections within the earlobe opening are another
commonly experienced problem. Perspiration and environmental moisture
can carry surface bacteria, dirt, and microscopic debris to the
earlobe opening. Where hygroscopic materials are used at the portion
of the earring that penetrates that opening, the moisture-borne
bacteria and debris can actually be transported to the interior
of the earlobe. Especially when the ear tissue has been recently
pierced, this can cause painful infections which persist even after
the earring is removed. In addition, infections can also result
within the earlobe opening directly from metabolic reactions with
respect to the earring material.
[0005]Further, irritating discomfort has sometimes been caused
by the earring construction itself. Optimally, the portion of the
earring penetrating the earlobe should be as small as possible so
as to minimize tissue exposure and supporting compression about
the opening, especially immediately after the ear is pierced. It
is also important that sharp edges, which could cut or scrape the
skin surface, be avoided in both the earring support structure and
the attached ornament.
[0006]These concerns and ones related to skin-irritating articles
such as jewelry have been long felt, and numerous unsuccessful attempts
have been made to provide universally acceptable jewelry. For example,
with respect to pierced earrings, it has been suggested to plate
the "post" portion of the earring penetrating the earlobe
with generally non-allergenic material, such as gold. However, not
only does such plating commonly wear-off, gold is rarely plated
in its pure form because of its relative softness. Gold-nickel alloys
are commonly used, but even that nickel can be the source of an
allergic reaction.
[0007]Posts formed from pure gold are often prohibitively expensive
and not strong enough to properly support the ornament unless considerably
thickened. Again, however, such posts are often uncomfortable because
of the extra tissue compression they require within the ear opening.
Further, a significant number of people suffer an allergic response
to tissue contact with any metallic substance.
[0008]Even where the post construction is comfortable, earrings
can cause irritation of the exterior skin surface for the same and
for different reasons. Materials sensitivity can require that even
the ornament base attached to the post be formed from a non-allergenic
material. This can significantly increase the earring cost and make
it difficult to attach an ornament to that base. Also, where skin
contact with the ornament material would cause discomfort, the base
must be large enough and carefully configured to prevent such contact.
[0009]Shields and sleeves of non-allergenic materials have been
proposed which slide over the post and/or the base of otherwise
unusable materials. While these have been satisfactory solutions
for some people, others have found that base shields do not completely
prevent moisture borne migration from the underlying metals to the
skin or ear tissue. Also, sleeves are by necessity larger than the
underlying post and can cause uncomfortable tissue compression within
the earlobe opening. Further, sleeves are typically marketed such
that they are cut to fit and mounted by the user and thereby require
considerable care to avoid leaving sharp edges to scrape or cut
the skin. On the other hand, shields and sleeves that are permanently
mounted to the earring by the manufacturer are significantly more
expensive.
[0010]Various plastic materials have been suggested for use in
earrings. However, plastics are often difficult to mold into thin,
rod-like components without a considerable loss of strength and
rigidity. Thus, as compared with metal posts, plastic posts are
often considerably thicker and thereby cause uncomfortable compression
of the earlobe opening tissue. Also, in some molding processes a
surface seam remains on the finished product which can cause skin
irritation. Further, it can be more difficult to secure some metal
ornaments to a plastic base and many plastic pigments are toxic
with prolonged tissue contact.
[0011]Regardless of the substrate type, plastic materials themselves
can also be absorbed through the skin to cause inflammation and
infection. While many non-hygroscopic plastic materials are known,
not all of these are non-allergenic, inexpensive and readily molded
into thin and complex parts.
[0012]Finally, it has been suggested that infection and irritation
can be avoided by gradually conditioning the skin. For example,
when an earlobe is initially pierced, earrings having very thin
posts are used and are temporarily coated with medication. After
a while, larger earring posts and unmedicated earrings are substituted.
However, this approach can be relatively expensive since a duplicity
of earrings must be acquired, some of which are specially formed
and medicated. Also, success is not ensured; allergic reactions
and infection can occur when the medication ceases.
[0013]What is desired is a coating for use on a skin-contacting
article and a coated skin-contacting article that will prevent skin
irritation and simultaneously provide medicaments, which can thwart
skin irritations or treat skin irritants already present on the
skin.
SUMMARY OF THE INVENTION
[0014]The present invention is a coating for use on a skin-contacting
article and a coated skin-contacting article for preventing skin
irritations and providing medication. The coating is any film-forming
material which contains medicaments such as antimicrobials. The
medicaments used herein combat infections, allergies, inflammation
and itching. The coating is applied to articles that contact the
skin, for example jewelry, including pierced jewelry. Once applied,
the coating dries as a film on the applied surface.
DETAILED DESCRIPTION OF THE INVENTION
[0015]The present invention is directed to a skin-contacting article
bearing a medicated coating. The coating comprises film-forming
materials such as natural or synthetic resins. Collodion is also
a useful film former. Medicaments such as antibiotics and anti-inflammatories,
i.e., steroids can be added to the coating material. The coated
articles prevent skin irritations that often arise during wearing
of or piercing with jewelry of uncoated metals. Skin irritations
may arise from an allergic reaction between the skin and the metal
and can lead to aggravated problems such as cysts or abscesses.
The coating of the present invention prevents skin irritation by
providing a barrier between the metal surface and the skin and can
provide medication for already irritated skin.
[0016]Suitable resinous film-forming materials used herein include
thermoplastic polymers such as, but not limited to, polycarbonates,
particularly aromatic polycarbonates, polyacetals, polyarylates,
polyarylene ethers, polyphenylene ethers, polyarylene sulfides,
polyphenylene sulfides, polyimides, polyamideimides, polyetherimides,
polyetherketones, polyaryletherketones, polyamides, polyesters,
liquid crystalline polyesters, polyetheresters, polyetheramides,
polyesteramides, and polyestercarbonates.
[0017]Suitable additional polymers include homo- and copolymeric
aliphatic olefin and functionalized olefin polymers (which are homopolymers
and copolymers comprising structural units derived from aliphatic
olefins or functionalized olefins or both), and their alloys or
blends. Illustrative examples include, but are not limited to, polyethylene,
polypropylene, thermoplastic polyolefin ("TPO"), ethylene-propylene
copolymer, poly(vinyl chloride), poly(vinyl chloride-co-vinylidene
chloride), poly(vinyl fluoride), poly(vinylidene fluoride), poly(vinyl
acetate), poly(vinyl alcohol), poly(vinyl butyral), poly(acrylonitrile),
acrylic polymers such as those of (meth)acrylamides or of alkyl
(meth)acrylates such as poly(methyl methacrylate) ("PMMA"),
and polymers of alkenylaromatic compounds such as polystyrenes,
including syndiotactic polystyrene.
[0018]Blends of any of the foregoing polymers may also be employed
herein as film-forming material. These include blends of thermoset
polymers with thermoplastic polymers such as polyphenylene ether,
polyphenylene sulfide, polysulfone, polyetherimide or polyester.
The thermoplastic polymer is typically combined with thermoset monomer
mixture before curing.
[0019]Another suitable film-forming material of the present invention
is Collodion or Flexible Collodion. Collodion is a solution of 4
g. of pyroxylin (chiefly nitrocellulose) in 100 ml of a mixture
of 25 milliliters alcohol and 75 milliliters ether. Collodion is
a colorless or slightly yellow, clear or slightly opalescent syrupy
liquid. The Flexible Collodion comprises simple Collodion with the
addition of camphor and 3% castor oil (by weight). Flexible Collodion
is slightly yellow and is a syrupy liquid which contains 67% ether
and about 22% absolute alcohol by volume. When the Collodion or
Flexible Collodion dries it leaves a tough and colorless film. Collodion
with or without an additional medicament as described below is a
particularly useful coating material to prevent allergenic reaction
between metal and skin.
[0020]Regardless of what film-forming materials are used, the coating
may have incorporated therein dermatologically active components
which can be used to readily and effectively treat a variety of
adverse skin conditions arising from contacting skin-irritating
substances with the skin. The film-forming material contains one
or more medicaments (active ingredients) for application onto the
desired substrate. In this invention, topical actives including
antibiotics and steroids are incorporated into the film-forming
material.
[0021]Medicaments used herein are employed to thwart infections,
allergies, inflammation and itching. Suitable medicaments include
antimicrobial substances that kill or slow microbial growth. One
class of antimicrobials include antibiotic drugs. Antibiotics are
relatively harmless to humans and are often used to treat infections.
Specific antibiotics include, but are not limited to:
Antibacterial antibiotics:Aminoglycosides (e.g., amikacin, apramycin,
arbekacin, bambermycins, butirosin, dibekacin, dihydrostreptomycin,
fortimicin(s), gentamicin, isepamicin, kanamycin, micronomicin,
neomycin, neomycin undecylenate, netilmicin, paromomycin, ribostamycin,
sisomicin, spectinomycin, streptomycin, tobramycin, trospectomycin),
amphenicols (e.g., azidamfenicol, chloramphenicol, florfenicol,
thiamphenicol), ansamycins (e.g., rifamide, rifampin, rifamycin
sv, rifapentine, rifaximin), .beta.-lactams (e.g., carbacephems
(e.g., loracarbef), carbapenems (e.g., biapenem, imipenem, meropenem,
panipenem), cephalosporins (e.g., cefaclor, cefadroxil, cefamandole,
cefatrizine, cefazedone, cefazolin, cefcapene pivoxil, cefclidin,
cefdinir, cefditoren, cefepime, cefetamet, cefixime, cefinenoxime,
cefodizime, cefonicid, cefoperazone, ceforanide, cefotaxime, cefotiam,
cefozopran, cefpimizole, cefpiramide, cefpirome, cefpodoxime proxetil,
cefprozil, cefroxadine, cefsulodin, ceftazidime, cefteram, ceftezole,
ceftibuten, ceftizoxime, ceftriaxone, cefuroxime, cefuzonam, cephacetrile
sodium, cephalexin, cephaloglycin, cephaloridine, cephalosporin,
cephalothin, cephapirin sodium, cephradine, pivcefalexin), cephamycins
(e.g., cefbuperazone, cefinetazole, cefininox, cefotetan, cefoxitin),
monobactams (e.g., aztreonam, carumonam, tigemonam), oxacephems,
flomoxef, moxalactam), penicillins (e.g., amdinocillin, amdinocillin
pivoxil, amoxicillin, ampicillin, apalcillin, aspoxicillin, azidocillin,
azlocillin, bacampicillin, benzylpenicillinic acid, benzylpenicillin
sodium, carbenicillin, carindacillin, clometocillin, cloxacillin,
cyclacillin, dicloxacillin, epicillin, fenbenicillin, floxacillin,
hetacillin, lenampicillin, metampicillin, methicillin sodium, mezlocillin,
nafcillin sodium, oxacillin, penamecillin, penethamate hydriodide,
penicillin g benethamine, penicillin g benzathine, penicillin g
benzhydrylamine, penicillin g calcium, penicillin g hydrabamine,
penicillin g potassium, penicillin g procaine, penicillin n, penicillin
o, penicillin v, penicillin v benzathine, penicillin v hydrabamine,
penimepicycline, phenethicillin potassium, piperacillin, pivampicillin,
propicillin, quinacillin, sulbenicillin, sultamicillin, talampicillin,
temocillin, ticarcillin), other (e.g., ritipenem), lincosamides
(e.g., clindamycin, lincomycin), macrolides (e.g., azithromycin,
carbomycin, clarithromycin, dirithromycin, erythromycin, erythromycin
acistrate, erythromycin estolate, erythromycin glucoheptonate, erythromycin
lactobionate, erythromycin propionate, erythromycin stearate, josamycin,
leucomycins, midecamycins, miokamycin, oleandomycin, primycin, rokitamycin,
rosaramicin, roxithromycin, spiramycin, troleandomycin), polypeptides
(e.g., amphomycin, bacitracin, capreomycin, colistin, enduracidin,
enviomycin, fusafungine, gramicidin s, gramicidin(s), mikamycin,
polymyxin, pristinamycin, ristocetin, teicoplanin, thiostrepton,
tuberactinomycin, tyrocidine, tyrothricin, vancomycin, viomycin,
virginiamycin, zinc bacitracin), tetracyclines (e.g., apicycline,
chlortetracycline, clomocycline, demeclocycline, doxycycline, guamecycline,
lymecycline, meclocycline, methacycline, minocycline, oxytetracycline,
penimepicycline, pipacycline, rolitetracycline, sancycline, tetracycline),
and others (e.g., cycloserine, mupirocin, tuberin).Synthetic antibacterials:2,4-Diaminopyrimidines
(e.g., brodimoprim, tetroxoprim, trimethoprim), nitrofurans (e.g.,
furaltadone, furazolium chloride, nifuradene, nifuratel, nifurfoline,
nifurpirinol, nifurprazine, nifurtoinol, nitrofurantoin), quinolones
and analogs (e.g., cinoxacin, ciprofloxacin, clinafloxacin, difloxacin,
enoxacin, fleroxacin, flumequine, grepafloxacin, lomefloxacin, miloxacin,
nadifloxacin, nalidixic acid, norfloxacin, ofloxacin, oxolinic acid,
pazufloxacin, pefloxacin, pipemidic acid, piromidic acid, rosoxacin,
rufloxacin, sparfloxacin, temafloxacin, tosufloxacin, trovafloxacin),
sulfonamides (e.g., acetyl sulfamethoxypyrazine, benzylsulfamide,
chloramine-b, chloramine-t, dichloramine t, n.sup.2-formylsulfisomidine,
n.sup.4-.beta.-d-glucosylsulfanilamide, mafenide, 4'-(methylsulfamoyl)sulfanilanilide,
noprylsulfamide, phthalylsulfacetamide, phthalylsulfathiazole, salazosulfadimidine,
succinylsulfathiazole, sulfabenzamide, sulfacetamide, sulfachlorpyridazine,
sulfachrysoidine, sulfacytine, sulfadiazine, sulfadicramide, sulfadimethoxine,
sulfadoxine, sulfaethidole, sulfaguanidine, sulfaguanol, sulfalene,
sulfaloxic acid, sulfamerazine, sulfameter, sulfamethazine, sulfamethizole,
sulfamethomidine, sulfamethoxazole, sulfamethoxypyridazine, sulfametrole,
sulfamidochrysoidine, sulfamoxole, sulfanilamide, 4-sulfanilamidosalicylic
acid, n.sup.4-sulfanilylsulfanilamide, sulfanilylurea, n-sulfanilyl-3,4-xylamide,
sulfanitran, sulfaperine, sulfaphenazole, sulfaproxyline, sulfapyrazine,
sulfapyridine, sulfasomizole, sulfasymazine, sulfathiazole, sulfathiourea,
sulfatolamide, sulfisomidine, sulfisoxazole) sulfones (e.g., acedapsone,
acediasulfone, acetosulfone sodium, dapsone, diathymosulfone, glucosulfone
sodium, solasulfone, succisulfone, sulfanilic acid, p-sulfanilylbenzylamine,
sulfoxone sodium, thiazolsulfone), and others (e.g., clofoctol,
hexedine, methenamine, methenamine anhydromethylene-citrate, methenamine
hippurate, methenamine mandelate, methenamine sulfosalicylate, nitroxoline,
taurolidine, xibomol).Antifungal antibiotics:Polyenes (e.g., amphotericin
b, candicidin, dermostatin, filipin, fungichromin, hachimycin, hamycin,
lucensomycin, mepartricin, natamycin, nystatin, pecilocin, perimycin),
others (e.g., azaserine, griseofulvin, oligomycins, neomycin undecylenate,
pyrrolnitrin, siccanin, tubercidin, viridin).Synthetic antifungals:Allylamines
(e.g., butenafine, naftifine, terbinafine), imidazoles (e.g., bifonazole,
butoconazole, chlordantoin, chlormidazole, cloconazole, clotrimazole,
econazole, enilconazole, fenticonazole, flutrimazole, isoconazole,
ketoconazole, lanoconazole, miconazole, omoconazole, oxiconazole
nitrate, sertaconazole, sulconazole, tioconazole), thiocarbamates
(e.g., tolciclate, tolindate, tolnaftate), triazoles (e.g., fluconazole,
itraconazole, saperconazole, terconazole) others (e.g., acrisorcin,
amorolfine, biphenamine, bromosalicylchloranilide, buclosamide,
calcium propionate, chlorphenesin, ciclopirox, cloxyquin, coparaffinate,
diamthazole dihydrochloride, exalamide, flucytosine, halethazole,
hexetidine, loflucarban, nifuratel, potassium iodide, propionic
acid, pyrithione, salicylanilide, sodium propionate, sulbentine,
tenonitrozole, triacetin, ujothion, undecylenic acid, zinc propionate).
Antineoplastic:
[0022]Antibiotics and analogs (e.g., aclacinomycins, actinomycin
f.sup.1, anthramycin, azaserine, bleomycins, cactinomycin, carubicin,
carzinophilin, chromomycins, dactinomycin, daunorubicin, 6-diazo-5-oxo-L-norleucine,
doxorubicin, epirubicin, idarubicin, menogaril, mitomycins, mycophenolic
acid, nogalamycin, olivomycines, peplomycin, pirarubicin, plicamycin,
porfiromycin, puromycin, streptonigrin, streptozocin, tubercidin,
zinostatin, zorubicin), antimetabolites (e.g. folic acid analogs
(e.g., denopterin, edatrexate, methotrexate, piritrexim, pteropterin,
Tomudex.RTM., trimetrexate), purine analogs (e.g., cladribine, fludarabine,
6-mercaptopurine, thiamiprine, thioguanine), pyrimidine analogs
(e.g., ancitabine, azacitidine, 6-azauridine, carmofur, cytarabine,
doxifluridine, emitefur, enocitabine, floxuridine, fluorouracil,
gemcitabine, tagafur).
[0023]The polymyxin antibiotics, most notably polymyxin B and polymyxin
E (also known as colistin) are cyclic polypeptide compounds produced
by certain strains of Bacillus polymyxa. Polymyxins serve to damage
cytoplasmic membranes of bacteria. Polymyxins are common components
in topical ointments.
[0024]The antibiotic, regardless of type, may be present in the
coating in a range about 0-5 w.t. %, preferably in a range about
0.5-4 w.t. %, and more preferably in a range about 1-3 w.t. %.
[0025]The coating may also include components to alleviate itching,
relieve pain and/or inflammation such as a steroid/anti-inflammatory.
Steroids are known to have many functions. The steroids having anti-inflammatory
effect employed in the present composition are also used to reduce
swelling, pain as well as inflammations. Corticosteroids are a natural
or synthetic steroid that have anti-inflammatory properties. Synthetic
corticosteroids mimic or augment the effects of natural corticosteroid
hormones that are produced by adrenal glands. Corticol is a naturally
produced example of a corticosteroid.
[0026]Steroid compounds used in the invention to provide an anti-inflammatory
effect may include cortisone, hydrocortisone, fluxinanide, fluoromethalone.
Other anti-inflammatory steroid agents include, but are not limited
to: triamcinolone and its derivatives (particularly the diacetate,
hexacetonide, and acetonide), betamethasone and its derivatives
(including particularly the dipropionate, benzoate, sodium phosphate,
acetate, and valerate), dexamethasone and its derivatives (particularly
the dipropionate and valerate), flunisolide, prednisone and its
derivatives (particularly its acetate), prednisolone and its derivatives
(particularly its acetate, sodium phosphate and tebutate), methylprednisolone
and its derivatives (particularly its acetate and sodium succinate),
fluocinolone and its derivatives (particularly the acetonide), diflorasone
and its derivatives (particularly the diacetate), halcinonide, desoximetasone
(desoxymethasone), diflucortolone and its derivatives (particularly
the valerate), flucloronide (fluclorolone acetonide), fluocinonide,
fluocortolone, fluprednidene and its derivatives (particularly the
acetate), flurandrenolide (flurandrenolone), clobetasol and its
derivatives (particularly the propionate), clobetasone and its derivatives
(particularly the butyrate), alclometasone, flumethasone and its
derivatives (particularly the pivalate), fluocortolone and its derivatives
(particularly the hexanoate), amcinonide, beclometasone and its
derivatives (particularly the dipropionate), fluticasone and its
derivatives (particularly the propionate), difluprednate, and desonide.
[0027]The preferred anti-inflammatory steroid used herein is hydrocortisone.
Hydrocortisone is a well-known chemical that may be produced either
by the human adrenal cortex, or synthetically. It is often used
in the treatment of a wide array of ailments, including inflammations,
allergies and arthritis. Hydrocortisone is used in many topical
preparations as a treatment for temporary relief of itching associated
with minor skin irritation, inflammation and rashes due to eczema,
insect bites, poison ivy, poison oak, poison sumac, soaps, detergents,
cosmetics, seborrheic dermatitis, psoriasis and itching in the genital
and anal areas of the body. Hydrocortisone speeds up the healing
process in wounds or sores that are especially prone to swelling.
Hydrocortisone is also helpful in applications where the sores are
not particularly prone to swelling. The steroid may be present in
the coating in a range about 0-5 w.t. %, preferably in a range about
0.1-4 w.t. %, and more preferably in a range about 0.2-2 w.t. %.
[0028]The invention is particularly useful for coating jewelry,
including pierced jewelry. To coat the jewelry, the film-forming
composition likely needs to be contained within a carrier solvent
for application. In general, organic solvents are useful for providing
the synthetic resin in liquid form and allowing ready application
to the jewelry. Specific examples of organic solvents are alcohols
such as methyl alcohol, ethyl alcohol, n- or iso-propyl alcohol,
n- or iso-butyl alcohol and diacetone alcohol; ketones such as acetone,
methyl ethyl ketone, methyl propyl ketone, methyl butyl ketone,
methyl amyl ketone, methyl hexyl ketone, diethyl ketone, di-isobutyl
ketone, cyclohexanone, methyl cyclohexanone and acetyl acetone;
hydrocarbons such as benzene, toluene, xylene, cyclohexane and methoxy
benzene; acetic acid esters such as ethyl acetate, n- or iso-propyl
acetate, n- or iso-butyl acetate, ethylbutyl acetate and hexyl acetate;
halides such as methylene dichloride, ethylene dichloride and monochloro-benzene;
ethers such as isopropyl ether, n-butyl ether, dioxane, dimethyl
dioxane and tetrahydrofuran; polyhydric alcohols and derivatives
thereof such as ethylene glycol, methyl cellosolve, methyl cellosolve
acetate, ethyl cellosolve, diethyl cellosolve, cellosolve acetate,
butyl cellosolve, butyl cellosolve acetate, methoxy-methoxy ethanol,
diethylene glycol monomethyl ether, diethylene glycol dimethyl ether,
diethylene glycol methyl-ethyl ether, diethylene glycol diethyl
ether, propylene glycol, propylene glycol monomethyl ether, propylene
glycol monomethyl ether acetate, propylene glycol monoethyl ether,
propylene glycol monoethyl ether acetate, propylene glycol monobutyl
ether and 3-methyl-3-methoxy butanol; and special solvents such
as dimethylsulfoxide and N,N-dimethyl-formamide, which may suitably
be used alone or in any combination.
[0029]If the film-forming composition is water-soluble or -dispersable,
water can be used as the carrier for the film-forming composition.
Surfactants may be needed to readily disperse the film-forming composition
in water. Combinations of water with organic solvents may also be
used. Instead of a solvent as a carrier for the film-former, some
film-formers may be useful in molten form without use of a solvent.
[0030]Once dispersed in the liquid carrier, the film-forming composition
can be used via an easy-to-use dispensing package/device to facilitate
dispensing of the coating on the intended article. For example,
the composition may be dispensed using common applicators such as
a brush, roll or eye dropping apparatus, spray bottles, sheets retaining
the coating in liquid form, etc. Thus the coating can be applied
to the jewelry substrate or other skin-contacting article, preferably
after cleaning, by dipping, swabbing, wiping, spraying, or a combination
of theses and other methods.
[0031]Pierced earrings are one type of jewelry substrate that can
cause skin irritations upon wearing. Often the post of the earring
that pierces the skin has caused skin allergies, inflammation and
infections. Likewise, other skin-contacting portion of the earring
such as the earring backing and the inner-rear surface of the front
of the earring have caused allergic reactions, inflammation and
infections to the portions of the skin it contacts. The present
invention provides relief for such problems by application of the
coating on these specific substrate surfaces.
[0032]With regard to application via spray bottles, aerosol container
or a non-aerosol spray device may be used. Said spray means is any
of the manually activated, preferably "trigger-type,"
means for producing a spray of liquid droplets as is known in the
art. Typical spray means are disclosed in U.S. Pat. No. 4,082,223,
Nozawa, issued Apr. 4, 1978; U.S. Pat. No. 4,161,288, McKinney,
issued Jul. 17, 1979; U.S. Pat. No. 4,558,821, Tada et al., issued
Dec. 17, 1985; U.S. Pat. No. 4,434,917, Saito et al., issued Mar.
6, 1984; and U.S. Pat. No. 4,819,835, Tasaki, issued Apr. 11, 1989,
all of said patents being incorporated herein by reference. Examples
of spray bottles are those in U.S. Design Pat. No. 244,991, Weekman
et al., issued Jul. 12, 1977; and U.S. Design Pat. No. 275,078,
Wassergord et al., issued Aug. 14, 1984, said patents being incorporated
herein by reference.
[0033]The spray device can also be one that can be adjusted to
either give a liquid spray or a foam. The spray means herein are
typically those that act upon a discrete amount of the coating itself,
typically by means of a piston that displaces the coating and expels
the coating through a nozzle to create a spray of thin liquid. After
application to the surface of the article it is then dried.
[0034]Consumers may apply the coating to the desired skin-contacting
article, e.g. pierced earring, via brushing or swabbing. For example,
the composition may be semi- viscous, gel-like or liquid disposed
in a closed container. The container may have a screw-on cap or
otherwise tightly closing cap bearing an applicator on its inner
side. The applicator has a long shaft bearing bristles or a swab
at its distal end. The applicator is long enough to reach more than
half-way inside the container without touching the bottom of the
container. Thus, the applicator is already immersed in the coating.
[0035]In use, the consumer would unscrew the cap from the container
wipe-off any excess amounts of coating already on the applicator
and apply the coating via brushing or swabbing on the pierced earring.
Any number of layers may be applied to the article. Drying time
should be allotted either between or after the application of layer(s)
to form the coating into a dry film.
[0036]In another method of use, the consumer may be provided the
coating as a liquid in a tub. The consumer would dip the pierced
earring or other jewelry into the coating, remove any excess coating
from the substrate and allow time to dry to form the dry film. In
yet another method, a single-use wipe retaining the coating could
be used to apply the coating on the jewelry. The wipe could be a
1''.times.1'' cloth saturated with the coating. The wipe is disposed
in an individual, sterile wrapper that is ripped open to expose
the swab. The wipe is then wiped, rubbed, dabbed or otherwise spread
on the jewelry, and finally allowed to dry to form the dry film.
[0037]After application of the coating, by the methods disclosed
above, the article is dried to form the irritant-free article. In
general, the drying of the coating is conducted using air at any
temperature. In some cases, good results would be obtained by removing
any humidity in the air for drying.
[0038]The coating may initially have any viscosity when applied
directly onto the substrate, but after the coating dries, it forms
a protective film close to the article's surface to maintain contact
of the active ingredients on the skin and prevent removal of the
active ingredients from the article. |