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Production method of low-luster underglaze brick

A production method and technology of glazed tiles, which are applied in the field of building materials, can solve the problems that small frits are easy to be sucked away, and achieve the effect of improving integrity and smoothness, and avoiding pinholes and air bubbles

Active Publication Date: 2015-01-07
金湖县项目服务中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a production method of matte underglaze glazed tiles, which can solve the problem of using small frits that are easy to be sucked away during the sintering process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation of frit granule binder: Components of every 100kg frit granule binder: 5.5kg of hydroxyethyl cellulose (purchased by Guangzhou Moke Building Materials Technology Co., Ltd.), 2.5kg of white carbon black, polymethicone Alkanes 1.1kg, organosilicon modified sodium phosphate 1.7kg, the balance is ethylene glycol.

[0025] The preparation method of the above-mentioned frit particle binder comprises the following steps: a) dissolving hydroxyethyl cellulose in ethylene glycol and stirring evenly; b) adding polymethylsiloxane and organosilicon-modified sodium phosphate, Stir evenly; c) Add white carbon black and the remaining ethylene glycol solvent, stir evenly to obtain a frit particle binder, and measure its flow rate to be 25.7s (30°C, coat -4 cups). It should be noted that the organosilicon-modified sodium phosphate can be replaced by sodium polyacrylate or sodium hexametaphosphate as a dispersant, and this solution can also be realized.

Embodiment 1-1

[0027] (1), prepare the bottom brick: choose the finished brick with white water absorption rate lower than 0.5% to make the bottom brick; the requirement of the brick is that it can better present the printing pattern, so it is necessary to use the finished brick with higher whiteness as the bottom brick;

[0028] (2) Bottom brick printing; use four-color inkjet printing to form a full-color printing pattern;

[0029] (3), frit layer: spray one deck water-repellent agent on the brick of printed pattern earlier, then cover the frit layer with pattern, spray one deck frit particle that is made by embodiment 1 again at last binder;

[0030] (4) Firing: Put the printed flower and the brick covered with the frit layer into the kiln for firing, the frit on the surface is fused into a transparent glass body, and the color of the pattern under the frit appears;

[0031] (5) Polishing: the fired product is directly polished by a polishing machine, and the frit on the surface is polis...

Embodiment 2

[0061] The preparation method of this example is basically the same as that of Example 1, the difference is that in this example, the components and proportions used are different. Components of per 100kg frit particle binder: hydroxyethyl methylcellulose (Dezhou Kangrong Chemical Co., Ltd.) 6.5kg, white carbon black 3.2kg, polymethylsiloxane 1.4kg, sodium hexametaphosphate 2.1 kg, the balance being ethanol.

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PUM

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Abstract

The invention discloses a production method of a low-luster underglaze brick. The production method comprises the following steps of preparing a bottom brick, wherein patterns are printed on the bottom brick; preparing a frit layer; sintering; polishing; edging, sorting; and packaging to obtain a final finished product. Firstly, a layer of hydrophobic agent is sprayed on a brick on which patterns are printed, then, the brick is covered by a frit layer with patterns, and next, a layer of frit particle binding agent is sprayed; and the frit particle binding agent comprises the following components in percentage by mass: 5.5-6.5% of cellulose thickener, 2.5-3.2% of white carbon black, 1.1-1.4% of defoaming agent, 1.2-1.8% of dispersing agent and the balance of solvent. Due to the adoption of the frit particle binding agent, the condition that frit particles are taken away under the action of low negative pressure of a preheating zone of a kiln is avoided, so that flaws such as a great number of pinholes, air bubbles and the like on the surface of a ceramic brick are avoided, and the integrality and smoothness of surface textures of a sintered green brick are greatly improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a method for producing matte underglaze glazed tiles. Background technique [0002] At present, ceramic tiles are the main material for interior decoration. After nearly 20 years of development, the manufacturing technology of ceramic tiles has advanced by leaps and bounds, and it is no longer the same as the early products. As people's requirements are getting higher and higher, ceramic tile products on the market are constantly improving to meet people's needs. Although the ceramic tile products on the market are becoming more and more rich in surface effect decoration, the polished glazed tiles with matte effect are becoming more and more popular among consumers, and the matte underglaze glazed tiles are one of them. Frit is used in the production process of matte underglaze glazed tiles. However, the quality of the frit particles directly determines the quality o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/89
Inventor 周克芳朱丽萍林春银刘娟刘向阳
Owner 金湖县项目服务中心