CN1042137A - Luminescent enamel - Google Patents

Abstract

A kind of luminescent enamel that is used to make label, letter disk and component of machine, belong to a kind of of photoluminescence enamel, because wherein vitreous enamel adopts special ground-coat enamel, opaque glaze and fluorescence glaze to be coated with complex structure for three layers to make this luminescent enamel have bigger luminous intensity, good weathering resistance, intact flawless porcelain facing and the good characteristics of chemical stability.

Description

Luminescent enamel

The present invention is a kind of luminescent enamel that is used to make label, letter disk and component of machine, belongs to a kind of of photoluminescence enamel.

In the past, making label, letter disk and domestic enamel ornament generally is to rely on organic coating and common enamelware, because these materials itself are not luminous, when being used to indicate, eye-catching inadequately at night and dark place.

In order to address this problem, luminescent enamel has successively been invented by countries such as Britain, Germany, the U.S. and France.This enamel mainly is luminous agent and enamel base glaze to be mixed burn till, or with Sudan Gum-arabic luminous agent is bonded at the calcination of getting on of enamel plate, and luminous agent is adsorbed on the enamel.Though this enamel has certain effect to solving luminous problem, it is durable, water-fast, wear-resisting, fast light, heat-resisting and antifouling property is not ideal enough.In addition, also once manufactured experimently both at home and abroad, but, therefore used and be subjected to certain restriction because it need adopt electric field as excitaton source into electroluminescence enamel.

The object of the present invention is to provide a kind of luminescent enamel of photoluminescence, it has good durable, water-fast, wear-resisting, fast light, heat-resisting and antifouling property.

The present invention is achieved in that on metal substrate coated has and the fired vitreous enamel that forms, and vitreous enamel contains luminous agent, wherein vitreous enamel by ground-coat enamel, opaque glaze and fluorescence glaze totally three layers constitute, (weight %) is as follows for the composition of ground-coat enamel:

SiO 30～53 R ₂O（Li ₂O+Na ₂O+K ₂O） 10～22

B ₂O ₃10～21 F ₂O 3～11 Al ₂O ₃2～7

BaO 2～15 CaO 0～9 MnO 0～3

TiO ₂0～5 Sb ₂O ₃+ CoO+NiO or one of them kind＜3

(weight %) is as follows for the composition of opaque glaze:

SiO ₂30～50 Al ₂O ₃1～4 B ₂O ₃11～21

F ₂2～10 R ₂O（Li ₂O+Na ₂O+K ₂O） 10～22

V ₂b 0～6 TiO ₂10～20

P ₂O ₅+ MgO or one of them kind＜4.5

CaO+MnO+CuO+Sb ₂O ₃+ Na ₂SbO ₃Or one of them kind＜0.2

The fluorescence glaze contains 20%～50%(weight) luminous agent and 50%～80%(weight) the low softening point transparent, luminous agent is fluor ZnSCu or (ZnCd) SCu, (weight %) is as follows for the composition of low softening point transparent:

SiO ₂30～45 Al ₂O ₃1～6 B ₂O ₃7～25

F ₂2～10 R ₂O（LiO+Na ₂O+K ₂O） 10～22

ZnO 5～20 ZrO ₂0～5 BaO 0～15

P ₂O ₅0～5 MoO ₃0～2 rare earth 0～4

In the present invention, added ZrO in the prescription ₂, Al ₂O ₃And SiO ₂, introduce Na simultaneously ₂O, K ₂O and LiO utilize three alkali effects, make the enamel chemical stability good.Introduce BaO and can improve porcelain facing gloss, introduce B ₂O ₃, MoO ₃, ZnO and P ₂O ₅Can reduce the enamel firing temperature, make luminescent material and enamel that better conformability be arranged.Introduce rare earth and can improve luminously, and adopt three-decker recited above, can make luminescent enamel have bigger luminous intensity, good weathering resistance and intact flawless characteristics of porcelain facing.

Luminescent enamel provided by the present invention is compared with the Japanese like product of the eighties, has better physicochemical property and appearance effect.Detect according to test, this product does not fall porcelain behind surging force 4000 gram centimeters; Enamel is netted behind surging force 15000 gram centimeters; It is still as seen luminous after 30 minutes to leave light source; Product does not have quick-fried point, falls porcelain and seminess.

Below in conjunction with embodiment the present invention is described in detail.

On metal substrate, coated one deck ground-coat enamel, firing temperature are 820～860 ℃, and the composition of ground-coat enamel (weight %) is:

SiO ₂：49.8 Al ₂O ₃：4.5 B ₂O ₃：12.6

R ₂O（K ₂O+Na ₂O）：19.5 CaF ₂：7.6

BaO：0.5 Na ₂SiF ₆：3.2 Sb ₂O ₃：2.3

On above-mentioned basic glaze, coated one deck opaque glaze again, firing temperature is 800～840 ℃, (weight %) is as follows for the composition of opaque glaze:

SiO ₂42.44 Al ₂O ₃2.05 B ₂O ₃14.71

R ₂O（K ₂O+Na ₂O） 11.75 P ₂O ₅2.04

Na ₂SiF ₆7.59 TiO ₂17.87 MgO 1.55

On above-mentioned opaque glaze, last coated one deck fluorescence glaze, firing temperature is 650 °～700 ℃.The preparation of fluorescence glaze is earlier the low softening point transparent to be melted, and by as follows that the gained crystallization is levigate, stirs again with after fluorescent substance mixes.

Low softening point transparent piece 100

Fluor 20～40

Clay 5

Sodium Nitrite 0.1

Water 42～45

(weight %) is as follows for the composition of above-mentioned low softening point transparent:

SiO ₂35.30 Al ₂O ₃2.19 B ₂O ₃14.41

K ₂O 2.02 Na ₂O 13.55 CaF ₂6.53

Li ₂O 1.00 ZnO 16.04 ZrO ₂2.50

P ₂O ₅1.01 BaO 5.31 MoO ₃0.24

Claims (1)

1, a kind of luminescent enamel, it comprise metal substrate, coated on the metal substrate and the fired vitreous enamel that forms and the luminous agent that is contained among the vitreous enamel constitute, it is characterized in that:

(a), vitreous enamel by ground-coat enamel, opaque glaze and fluorescence glaze totally three layers constitute;

(b), the composition of ground-coat enamel (weight %) is as follows:

SiO ₂30～53 R ₂O(Li ₂O+Na ₂O+K ₂O)10～22

B ₂O ₃10～21 F ₂3～11 Al ₂O ₃2～7

BaO 2～15 CaO 0～9 MnO 0～3

TiO ₂0～5 Sb ₂O ₃+ CoC+NiO or one of them kind＜3

(c), the composition of opaque glaze (weight %) is as follows:

SiO ₂30～50 Al ₂O ₃1～4 B ₂O ₃11～21

F ₂2～10 R ₂O(Li ₂O+Na ₂O+K ₂O) 10～22

V ₂b 0～6 TiO ₂10～20

P ₂O ₅+ MgO or one of them kind＜4.5

CaO+MnO+CuO+Sb ₂O ₃+ Na ₂SbO ₃Or one of them kind＜0.2

(d), the fluorescence glaze contains the low softening point transparent of the luminous agent and 50%～80% (weight) of 20%～50% (weight), luminous agent is fluor ZnSCu or (ZnCd) SCu, (weight %) is as follows for the composition of low softening point transparent:

SiO ₂30～45 Al ₂O ₃1～6 B ₂O ₃7～25

F ₂2～10 R ₂O(LiO+Na ₂O+K ₂O) 10～22

ZnO 5～20 ZrO ₂0～5 BaO 0～15

P ₂O ₅0～5 MoO ₃0～2 rare earth 0～4