CN106747281A - A kind of preparation method for strengthening magnesia porcelain - Google Patents

A kind of preparation method for strengthening magnesia porcelain Download PDF

Info

Publication number
CN106747281A
CN106747281A CN201611155993.5A CN201611155993A CN106747281A CN 106747281 A CN106747281 A CN 106747281A CN 201611155993 A CN201611155993 A CN 201611155993A CN 106747281 A CN106747281 A CN 106747281A
Authority
CN
China
Prior art keywords
preparation
glaze
raw material
magnesia porcelain
glaze slip
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.)
Pending
Application number
CN201611155993.5A
Other languages
Chinese (zh)
Inventor
罗新甲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Xinhui Ceramic Co Ltd
Original Assignee
Hunan Xinhui Ceramic Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hunan Xinhui Ceramic Co Ltd filed Critical Hunan Xinhui Ceramic Co Ltd
Priority to CN201611155993.5A priority Critical patent/CN106747281A/en
Publication of CN106747281A publication Critical patent/CN106747281A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/002—Use of waste materials, e.g. slags
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/04—Clay; Kaolin
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/32—Burning methods
    • C04B33/34—Burning methods combined with glazing
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/86—Glazes; Cold glazes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427—Silicates other than clay, e.g. water glass
    • C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
    • C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite

Abstract

A kind of preparation method for strengthening magnesia porcelain disclosed by the invention, comprises the following steps：S1, body preparation：To be sieved after blank ball milling, old rear roll forming obtains base substrate；S2, glazing：In the base substrate immersion glaze slip that step S1 is obtained, then propose, glaze layer is adhered in billet surface, obtain glazing green compact；S3, sintering：The glazing green compact that step S2 is obtained are dried, it is transferred to sintering in the kiln of oxidizing atmosphere, the magnesia porcelain is obtained after cooling, its blank is by whitening stone, black talc, albite, potassium feldspar, quartz, washing mud, Inner Mongol soil and be prepared from, glaze in glaze slip, by the useless porcelain powder of magnesia porcelain, washes mud, Inner Mongol soil, whitens stone, barium carbonate, zinc oxide, albite, potassium feldspar, calcite, strontium carbonate and be prepared from.The magnesia porcelain prepared using the method for the present invention is clear, it is not easy to which broken, transparency is high.

Description

A kind of preparation method for strengthening magnesia porcelain
Technical field
The present invention relates to domestic ceramics technical field, and in particular to a kind of preparation method of the magnesia porcelain of reinforcing.
Background technology
Ceramics counts the history for doing year in the history of human being's production, during domestic ceramics is ceramic various in style Most ancient and most traditional ceramics.Current porcelain species very abundant, development is even more and makes rapid progress in terms of type, decoration, skill Art innovation achievement emerges in an endless stream.With the continuous improvement of people's living standard, the practicality and appreciation of ceramic product are needed Ask more urgent.Ceramic art moulding, artistic decoration, carving product very abundant, various products are constantly brought forth new ideas, are enriched, and enrich The artistic demand of people.But the art pottery be only limitted to furnishings with decoration, only for the leisure after appreciate it, please it.Practicality and The ceramic of appreciating one could meet and enrich the material life of people and culture life intension, make people food and drink, After work, leisure, the Ceramics Culture and Chinese civilization history of China can be appreciated, savoured everywhere.
Magnesia porcelain (reinforcing porcelain) is also a kind of high-grade porcelain, and Britain just makes magnesium early in 18 end of the centurys by primary raw material of talcum Matter porcelain, so magnesia porcelain is also known as steatite ceramic.Magnesia porcelain porcelain exquisiteness is milky white, thin tire is translucent, have greasy luster.Talcum is magnesium Hydrosilicate mineral, hand touches with soapy feeling, and slabbing structure, easy slabbing when crushing is difficult to crush.Magnesia porcelain was making Cheng Zhong, 80-88% is accounted for because its blank is main based on poor material, and plasticity bentonite is less, is burnt in reducing atmosphere condition More than 1350 DEG C, to be that base substrate has significantly different for its contraction change and common " clay, feldspar, quartz " in sintering process.According to Known technology cannot be solved at all, and the not high defect of frangible, transparency easily occur in magnesia ceramic products.
The content of the invention
The technical problems to be solved by the invention are that a kind of reinforcing is provided for the problems of existing magnesia porcelain The preparation method of magnesia porcelain, the magnesia porcelain that it is prepared is clear, it is not easy to which broken, transparency is high.
The technical problems to be solved by the invention can be achieved through the following technical solutions：
A kind of preparation method for strengthening magnesia porcelain, comprises the following steps：
S1, body preparation：To be sieved after blank ball milling, old rear roll forming obtains base substrate；
S2, glazing：In the base substrate immersion glaze slip that step S1 is obtained, then propose, glaze layer is adhered in billet surface, obtain Glazing green compact；
S3, sintering：The glazing green compact that step S2 is obtained are dried, and are transferred to sintering in the kiln of oxidizing atmosphere, after cooling To the magnesia porcelain, it is characterised in that
The blank, is made up of the following raw material according to mass percent：
Above each component sum is 100%；
The preparation method of above-mentioned blank be will whiten stone, black talc, albite, potassium feldspar, quartz, wash mud, Inner Mongol soil point 200-400 mesh sieves, Fen Sui not be crossed, water stirring after being weighed according to mass percent plus appropriate is made.
Glaze in the glaze slip, is made up of the following raw material according to mass percent：
The preparation method of above-mentioned glaze slip, comprises the following steps：
(1) pretreatment of raw material：Stone matter raw material are whitened into stone, albite, potassium feldspar and calcite and is processed at least 8 mesh excessively The powder of sieve；
(2) manufacture：All raw materials are added in the ball mill equipped with abrasive body by formula ratio, adds a certain amount of water to make glaze In 1.57~1.61g/100ml, more than 240 mesh, i.e., particle diameter is less than ball milling glaze slip to fineness slurry specific gravity control 0.061mm, detects, screen over-size is in 0.03-0.04% for qualified with 320 mesh sieves, you can blowing-mistake screens out iron-store for future use.
In a preferred embodiment of the invention, the blank, is made up of the following raw material according to mass percent：
In a preferred embodiment of the invention, the glaze in the glaze slip, by the following original according to mass percent Material composition：
The magnesia porcelain prepared using the above method is clear, it is not easy to which broken, transparency is high.
Specific embodiment
Embodiment 1
The preparation method of the magnesia porcelain of reinforcing of the embodiment, comprises the following steps：
S1, body preparation：To be sieved after blank ball milling, old rear roll forming obtains base substrate；
S2, glazing：In the base substrate immersion glaze slip that step S1 is obtained, then propose, glaze layer is adhered in billet surface, obtain Glazing green compact；
S3, sintering：The glazing green compact that step S2 is obtained are dried, and are transferred to sintering in the kiln of oxidizing atmosphere, after cooling To the magnesia porcelain, wherein：
Above-mentioned blank, is made up of the following raw material according to mass percent：
The preparation method that the embodiment strengthens the blank of magnesia porcelain is will to whiten stone, black talc, albite, potassium feldspar, stone English, wash mud, Inner Mongol soil and crush respectively, cross 200-400 mesh sieves, after being weighed according to mass percent plus appropriate water stirring is made.
Glaze in above-mentioned glaze slip, is made up of the following raw material according to mass percent：
The preparation method of above-mentioned glaze slip, comprises the following steps：
(1) pretreatment of raw material：Stone matter raw material are whitened into stone, albite, potassium feldspar and calcite and is processed at least 8 mesh excessively The powder of sieve；
(2) manufacture：All raw materials are added in the ball mill equipped with abrasive body by formula ratio, adds a certain amount of water to make glaze In 1.57g/100ml, more than 240 mesh, i.e., particle diameter is less than 0.061mm to ball milling glaze slip to fineness to slurry specific gravity control, with 320 Mesh sieve detects that screen over-size is 0.03% for qualified, you can blowing-mistake screens out iron-store for future use.
Embodiment 2
The preparation method of the magnesia porcelain of reinforcing of the embodiment, comprises the following steps：
S1, body preparation：To be sieved after blank ball milling, old rear roll forming obtains base substrate；
S2, glazing：In the base substrate immersion glaze slip that step S1 is obtained, then propose, glaze layer is adhered in billet surface, obtain Glazing green compact；
S3, sintering：The glazing green compact that step S2 is obtained are dried, and are transferred to sintering in the kiln of oxidizing atmosphere, after cooling To the magnesia porcelain, wherein：
Above-mentioned blank, is made up of the following raw material according to mass percent：
The preparation method that the embodiment strengthens the blank of magnesia porcelain is will to whiten stone, black talc, albite, potassium feldspar, stone English, wash mud, Inner Mongol soil and crush respectively, cross 200-400 mesh sieves, after being weighed according to mass percent plus appropriate water stirring is made.
Glaze in above-mentioned glaze slip, is made up of the following raw material according to mass percent：
The preparation method of above-mentioned glaze slip, comprises the following steps：
(1) pretreatment of raw material：Stone matter raw material are whitened into stone, albite, potassium feldspar and calcite and is processed at least 8 mesh excessively The powder of sieve；
(2) manufacture：All raw materials are added in the ball mill equipped with abrasive body by formula ratio, adds a certain amount of water to make glaze In 1.57g/100ml, more than 240 mesh, i.e., particle diameter is less than 0.061mm to ball milling glaze slip to fineness to slurry specific gravity control, with 320 Mesh sieve detects that screen over-size is 0.03% for qualified, you can blowing-mistake screens out iron-store for future use.
Embodiment 3
The preparation method of the magnesia porcelain of reinforcing of the embodiment, comprises the following steps：
S1, body preparation：To be sieved after blank ball milling, old rear roll forming obtains base substrate；
S2, glazing：In the base substrate immersion glaze slip that step S1 is obtained, then propose, glaze layer is adhered in billet surface, obtain Glazing green compact；
S3, sintering：The glazing green compact that step S2 is obtained are dried, and are transferred to sintering in the kiln of oxidizing atmosphere, after cooling To the magnesia porcelain, wherein：
Above-mentioned blank, is made up of the following raw material according to mass percent：
The preparation method that the embodiment strengthens the blank of magnesia porcelain is will to whiten stone, black talc, albite, potassium feldspar, stone English, wash mud, Inner Mongol soil and crush respectively, cross 200-400 mesh sieves, after being weighed according to mass percent plus appropriate water stirring is made.
Glaze in above-mentioned glaze slip, is made up of the following raw material according to mass percent：
The preparation method of above-mentioned glaze slip, comprises the following steps：
(1) pretreatment of raw material：Stone matter raw material are whitened into stone, albite, potassium feldspar and calcite and is processed at least 8 mesh excessively The powder of sieve；
(2) manufacture：All raw materials are added in the ball mill equipped with abrasive body by formula ratio, adds a certain amount of water to make glaze In 1.57g/100ml, more than 240 mesh, i.e., particle diameter is less than 0.061mm to ball milling glaze slip to fineness to slurry specific gravity control, with 320 Mesh sieve detects that screen over-size is 0.03% for qualified, you can blowing-mistake screens out iron-store for future use.

Claims (3)

1. a kind of preparation method for strengthening magnesia porcelain, comprises the following steps：
S1, body preparation：To be sieved after blank ball milling, old rear roll forming obtains base substrate；
S2, glazing：In the base substrate immersion glaze slip that step S1 is obtained, then propose, glaze layer is adhered in billet surface, obtain glazing Green compact；
S3, sintering：The glazing green compact that step S2 is obtained are dried, and are transferred to sintering in the kiln of oxidizing atmosphere, and institute is obtained after cooling State magnesia porcelain, it is characterised in that
The blank, is made up of the following raw material according to mass percent：
The preparation method of above-mentioned blank be will whiten stone, black talc, albite, potassium feldspar, quartz, wash mud, Inner Mongol soil respectively powder Broken, mistake 200-400 mesh sieves, water stirring after being weighed according to mass percent plus appropriate is made；
Glaze in the glaze slip, is made up of the following raw material according to mass percent：
The preparation method of above-mentioned glaze slip, comprises the following steps：
(1) pretreatment of raw material：Stone matter raw material are whitened into stone, albite, potassium feldspar and calcite it is processed into and at least crosses 8 mesh sieves Powder；
(2) manufacture：All raw materials are added in the ball mill equipped with abrasive body by formula ratio, adds a certain amount of water to make glaze slip ratio Control again in 1.57~1.61g/100ml, more than 240 mesh, i.e., particle diameter is less than 0.061mm to ball milling glaze slip to fineness, uses 320 mesh sieves detect that screen over-size is in 0.03-0.04% for qualified, you can blowing-mistake screens out iron-store for future use.
2. the preparation method of magnesia porcelain is strengthened as claimed in claim 1, it is characterised in that the blank, by following according to matter Measure the raw material composition of percentage：
3. strengthen the preparation method of magnesia porcelain as claimed in claim 1, it is characterised in that the glaze in the glaze slip, by with Under according to mass percent raw material constitute：
CN201611155993.5A 2016-12-15 2016-12-15 A kind of preparation method for strengthening magnesia porcelain Pending CN106747281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611155993.5A CN106747281A (en) 2016-12-15 2016-12-15 A kind of preparation method for strengthening magnesia porcelain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611155993.5A CN106747281A (en) 2016-12-15 2016-12-15 A kind of preparation method for strengthening magnesia porcelain

Publications (1)

Publication Number Publication Date
CN106747281A true CN106747281A (en) 2017-05-31

Family

ID=58889003

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611155993.5A Pending CN106747281A (en) 2016-12-15 2016-12-15 A kind of preparation method for strengthening magnesia porcelain

Country Status (1)

Country Link
CN (1) CN106747281A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112408786A (en) * 2020-11-19 2021-02-26 佛山东鹏洁具股份有限公司 Dull color glaze mixed with waste ceramic powder, ceramic product and preparation method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112408786A (en) * 2020-11-19 2021-02-26 佛山东鹏洁具股份有限公司 Dull color glaze mixed with waste ceramic powder, ceramic product and preparation method

Similar Documents

Publication Publication Date Title
CN115010465B (en) Low-temperature quick-firing ceramic rock plate and preparation method thereof
CN104961502A (en) Raw-glaze novel microcrystalline tactile sensation-imitation thick glaze-polished brick and production method thereof
CN105315015B (en) A kind of preparation method of building decoration transmutation art pottery ceramic tile
CN108821588B (en) High-alumina barium ceramic glaze, ink-jet ceramic tile containing high-alumina barium ceramic glaze and preparation method of ink-jet ceramic tile
CN101224980A (en) Method for producing ceramic surface archaizing brick
CN101186484B (en) Method for producing high-grade under enamel colored drawing household porcelain from low-quality clay
CN108314435A (en) A kind of high anti-break and high strength degree ceramics sheet slab and its manufacturing method
CN105294057B (en) A kind of preparation technology of ultra-thin pottery brick
CN109987842A (en) A kind of pottery celeste glaze and its preparation process
CN111039665A (en) Ceramic glazed tile blank and preparation method of ceramic glazed tile
CN106747282A (en) A kind of preparation method of magnesia porcelain
CN106747325A (en) A kind of preparation method of transparency magnesia porcelain high
CN106747281A (en) A kind of preparation method for strengthening magnesia porcelain
CN106747383A (en) The magnesia porcelain of one kind reinforcing
CN106747284A (en) A kind of magnesia porcelain
CN110482863B (en) White opaque glaze, white opaque glaze ceramic product and preparation method thereof
CN106699117A (en) Preparation method of enhanced high-transparency magnesia porcelain
CN106587918A (en) High-grade strengthen magnesia porcelain
CN106747283A (en) A kind of modified form transparency magnesia porcelain high
CN106699116A (en) Method for preparing improved magnesia porcelain
CN101284729A (en) Preparation method for full-body polished porcelain tiles
CN104876555A (en) Light-weight wall tile
CN106587920A (en) Preparation method of improved strengthened magnesia porcelain
CN106587921A (en) Improved magnesia porcelain
CN106746645A (en) The magnesia porcelain clear frit of one kind improvement

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20170531

RJ01 Rejection of invention patent application after publication