TR202022115A2 - WHITE CRYSTAL EFFECT GLAZE FOR PORCELAIN PRODUCTS - Google Patents

WHITE CRYSTAL EFFECT GLAZE FOR PORCELAIN PRODUCTS

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Publication number
TR202022115A2
TR202022115A2 TR2020/22115A TR202022115A TR202022115A2 TR 202022115 A2 TR202022115 A2 TR 202022115A2 TR 2020/22115 A TR2020/22115 A TR 2020/22115A TR 202022115 A TR202022115 A TR 202022115A TR 202022115 A2 TR202022115 A2 TR 202022115A2
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TR
Turkey
Prior art keywords
glaze
feature
crystal effects
white colored
glaze composition
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TR2020/22115A
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Turkish (tr)
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Porland Porselen Sanayi Ve Ticaret Anonim Sirketi
Porland Porselen Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇
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Priority to TR2020/22115A priority Critical patent/TR202022115A2/en
Publication of TR202022115A2 publication Critical patent/TR202022115A2/en

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Abstract

Buluş, porselen sofra eşyaları için geliştirilen kristal efektlere sahip beyaz renkli sır kompozisyonu ve üretim yöntemi ile ilgilidir.The invention relates to the composition and production method of white glaze with crystal effects developed for porcelain tableware.

Description

TARIFNAME PORSELEN ÜRÜNLER IÇIN BEYAZ RENKLI KRISTAL EFEKTLI SIR Teknik Alan Bulus, porselen sofra esyalari için gelistirilen kristal efektlere sahip beyaz renkli sir kompozisyonu ile ilgilidir. Bulus, pisirim sonrasi yüzeyinde çatlak, patlama Vb. hatalar içermeyen ve pisirimden pisirime efekt orani minimum seviyede olan kristal efektlere sahip beyaz renkli sir kompozisyonu üretim yöntemi ile ilgilidir. Teknigin Bilinen Durumu Porselenler literatürde sert porselen ve yumusak porselen olarak ana siniflara ayrilmaktadir. Yumusak porselenler sert porselene göre daha düsük sicaklikta (1220- 1280°C) pisirilirken, sert porselenler daha yüksek sicaklikta (1350-14000C) pismektedir. Porselen sofra esyasi üretim yönteminin baslica asamalari asagidaki gibidir; - Bünye hammaddelerinin reçetede belirtilen oranlara göre tartilmasi - Hammaddelerin ögütülerek (sulu karisim olarak) çamur haline getirilmesi - Sekillendirme - Sirlama ° Sirli pisirim Porselen sirlarinin üretim asamalari ise asagidaki gibidir; ° Sir hammaddelerinin reçetede belirtilen oranlara göre tartilmasi ° Hammaddelerin Ögütülmesi (sulu karisim olarak) Literatürde 2018/ 14731 numarali patent müracaatinda "Bulus, tüm porselen ve sofra esyasi ürünlerine uygulanabilen ve isik geçirgenligi yüksek ürünlerde kullanilan kemik külü yerine uygun oranda bor içerikli bilesene sahip porselen sir kompozisyonu ile ilgilidir. Bulusun amaci su absorbsiyonu düsük, çarpma parçacik kopma dayaniminin minimum 40 Newton olmasidir" ifadelerine yer verilmektedir. Söz konusu basvuruda bor içerikli porselen sir kompozisyonundan bahsedilmektedir. Porselen ürünlerin sirlanmasi, ürüne estetik ve görsel açidan deger katmayi amaçlayan bir islem adimidir ve bu asamada pazarda birçok farkli görünüme ve estetik algiya sahip ürünler bulunmaktadir. Kristal efektli sirlarin baslica problemi pisirim sonrasi stabil bir görüntünün elde edilememesi, ürün yüzeyinde çatlaklar olusmasi ve sirin belirli bölgelerinde patlama adi verilen küçük kraterler olusmasidir. Bu sebeple seri üretimi çok fazla bulunmayan bu sirlar genellikle artistik çalismalar ortaya koyma amaciyla üretilmektedir. Bulusun Amaci Mevcut bulus, yukarida bahsedilen gereksinimleri karsilayan, kristal efektlere sahip beyaz renkli sir kompozisyonu ve üretim yöntemi ile ilgilidir. Bulusun amaci, yüzeyinde firin çikisi çatlaklar ve patlamalar bulunmayan kristal efektlere sahip porselen sir reçetesi gelistirmektir. Bulusun baska bir ainaci ayni pisirim rejiminde seri üretime adapte edilebilecek efekt stabilitesine sahip kristal efektli porselen sofra esyasi elde edilmesidir. Bulusun bir diger amaci, oksidatif atmosferde ll70-1320°C pisirim sicaklik araliginda olgunlasabilen kristal efektlere sahip sir eldesidir. Bulusun bir diger amaci, pisirim sonrasi efekt orani açisindan stabil, yüzeyinde patlama veya çatlak benzeri hata bulunmayan, beyaz renkli kristal sir efektli sir eldesidir. Yukarida bahsedilen ve asagida detayli anlatimdan anlasilacak tüm özellikleri ihtiva etmek üzere mevcut bulus; porselen sofra esyalari için gelistirilen kristal efektlere sahip beyaz renkli sir kompozisyonu ve üretim yöntemi ile ilgili olup sir reçetesinde; bahsedilen sofra esyasinin wkarida belirtilen özellikleri ihtiva etmesini saglayan oranlarda NazO, K20, CaO, Tiûz, MgO, AlzO3, ZnO ve Si02 ve içermesidir. Sekillerin Kisa Açiklamasi Mevcut bulusun yapilanmasi ve ek elemanlarla birlikte avantajlarinin en iyi sekilde anlasilabilmesi için asagida açiklamasi yapilan sekiller ile birlikte degerlendirilmesi gerekir. Sekil 1. Bulus konusu porselen sir kompozisyonu üretimi proses akim semasi görünümüdür. Çizimlerin ölçeklendirilmesi zaruri olmayip, mevcut bulusu anlamak için gerekli olmayan detaylar ihmal edilmis olabilmektedir. Ayrica, en azindan büyük ölçüde özdes olan veya en azindan büyük ölçüde özdes islevleri olan elemanlar, ayni numara ile gösterilmektedir, Referans Numaralari 1.Sir reçete hammaddelerinin tartimi 2.Ögütme 3.Re010jik parametrelerin ayarlanmasi 4.Püskürtme sirlama .Sirli Pisirim Bulusun Detayli Açiklamasi Detayli açiklamada, bulus konusu porselen sofra esyasinin tercih edilen yapilanmalari, sadece konunun daha iyi anlasilmasina yönelik olarak ve hiçbir sinirlayici etki olusturmayacak sekilde açiklanmaktadir. Bulus genel olarak porselen sofra esyalari için gelistirilen kristal efektlere sahip beyaz renkli sir kompozisyonu ve üretim yöntemi ile ilgilidir. Burada ilk olarak sir reçete hammaddelerinin tartimi (l) islemi gerçeklestirilmektedir. Degirmende belirli bir tane boyut dagilimina kadar ögütülen hammaddeler, süzüldükten sonra püskürtme sirlama (4) islemine uygun hale getirilmek amaciyla bir takim islemlerden geçirilmektedir. Bulusta, sir reçete hammaddelerin tartimi (l) esnasinda sir reçetesinin içerigi agirlikça; %0-5 alt ve üst limitler, her bir bilesenin agirliginda sirasiyla minimum ve maksimum limitlerdir. Bulusun standart bir porselen sir üretim prosesinden farki ve porselen sofra esyasi ürünlerine uygulanarak yüzeyinde firin çikisi çatlaklar ve patlamalar bulunmayan stabil kristal efektlere sahip porselen sir kompozisyonu olusturulmasini saglayan proses basamaklari sir reçete hammaddelerinin tartimi (l), püskürtme sirlama (4) ve sirli pisirim (5) islemleridir. Üretim prosesinde ögütme (2) isleminin ardindan sirin reolojik parametlerin ayarlanmasi (3) islemi gerçeklesmektedir. Sulu olarak ögütülen sirin yogunlugu 1500-1600 gr/lt iken akis degeri 2 mm agiz çapina sahip fordcup için 60-85 saniye arasidir. Reolojik parametrelerin ayarlanmasi (3) sonrasi sir, pistole yardimiyla porselen bisküvi yüzeyine püskürtme yöntemi ile sirlanir (4). Ürünün standart bir porselen püskürtme sirlama prosesinden farkli olan bir Özelligi de standart bir sofra esyasi için püskürtme sirlama yönteminde yüzeye uygulanan sir miktarindan % 30-40 daha fazla sir uygulanmasidir, bu uygulama farkliligi kristal efektlerin olusmasindaki kritik parametrelerden biri olup efekt olusumunun stabil tutulmasinda etkilidir. Bu islemin ardindan, porselen üretiminin son asamasi olan, sirli pisirim (5) islemi gerçeklesmektedir. Bulusun daha önceki tekniklerden farkli olarak stabil bir kristallenme olusmasini saglayan diger bir kritik parametre sirli pisirim rejimidir. Kristal efektlerin pisirimden pisirime minimum oranda farklilik göstermesi için bahsi geçen bulusun tercih edilen pisirim rejimi sicaklik ve süre olarak 300 0C ila 1000 0C arasinda bir sicaklik araliginda yaklasik arasinda tepe ve çukur olusturacak sekilde sicaklik yükseltilip düsürülmektedir. Rejimde olusturulan tepe ve çukur noktalari sonrasi 1100 0C sicaklik noktasindan yaklasik 60 dakika ila 90 dakika arasindaki sürede firin sicakligi oda sicakligi seviyesine getirilmektedir. Rejimin 1050°C arasinda tepe ve çukur olarak isitilip sogutulmasi kristallerin büyümesini, stabil efekt elde edilmesini ve yüzey hatalarini engelleyen bir sinterlesme mekanizmasini içermekte olup pisirim sonrasi reçete içerigindeki hammadde oranlarinin da etkisiyle birlikte sir faz yapisinin istenilen özelliklerin elde edilmesini saglayan oranlarda yaklasik %3 5-55 Villemit (Zn28i04), TR TR TR DESCRIPTION WHITE COLORED CRYSTAL EFFECT GLAZE FOR PORCELAIN ITEMS Technical Field The invention relates to the white colored glaze composition with crystal effects developed for porcelain tableware. Invention, cracks, explosions etc. on the surface after firing. It is related to the production method of white colored glaze composition with crystal effects that does not contain errors and has a minimum effect rate from firing to firing. State of the Art Porcelains are divided into main classes in the literature as hard porcelain and soft porcelain. While soft porcelains are fired at a lower temperature (1220-1280°C) than hard porcelain, hard porcelains are fired at a higher temperature (1350-14000C). The main stages of the porcelain tableware production method are as follows; - Weighing the body raw materials according to the rates specified in the recipe - Grinding the raw materials and turning them into mud (as an aqueous mixture) - Shaping - Glazing ° Glaze firing The production stages of porcelain glazes are as follows; ° Weighing of glaze raw materials according to the rates specified in the recipe ° Grinding of Raw Materials (as an aqueous mixture) In the literature, in the patent application numbered 2018/ 14731, it is stated that "The invention is a porcelain glaze with an appropriate proportion of boron-containing component instead of bone ash, which can be applied to all porcelain and tableware products and used in products with high light permeability." It is related to its composition. The purpose of the invention is to have low water absorption and minimum impact particle breaking strength of 40 Newtons." In the application in question, boron-containing porcelain glaze composition is mentioned. Glazing of porcelain products is a process step that aims to add aesthetic and visual value to the product, and at this stage, there are products with many different appearances and aesthetic perceptions in the market. The main problem of crystal effect glazes is that a stable appearance cannot be obtained after firing, cracks form on the product surface, and small craters called explosions form in certain parts of the glaze. For this reason, these glazes, which are not widely produced in mass production, are generally produced for the purpose of creating artistic works. Purpose of the Invention The present invention relates to a white colored glaze composition and production method with crystal effects that meets the above-mentioned requirements. The aim of the invention is to develop a porcelain glaze recipe with crystal effects that does not have cracks and explosions on the surface. Another aim of the invention is to obtain crystal effect porcelain tableware with effect stability that can be adapted to mass production in the same firing regime. Another aim of the invention is to obtain glaze with crystal effects that can mature in the oxidative atmosphere in the firing temperature range of 170-1320°C. Another aim of the invention is to obtain a glaze with a white colored crystal glaze effect, which is stable in terms of effect rate after firing, and has no explosion or crack-like defects on the surface. The present invention includes all the features mentioned above and which can be understood from the detailed explanation below; It is related to the composition and production method of white colored glaze with crystal effects developed for porcelain tableware and in the glaze recipe; It contains NazO, K2O, CaO, Tiuz, MgO, AlzO3, ZnO and SiO2 in proportions that enable the said tableware to contain the properties specified above. Brief Description of the Drawings In order to best understand the structure of the present invention and its advantages with additional elements, it should be evaluated together with the figures explained below. Figure 1. The process flow diagram of the porcelain glaze composition production subject to the invention. It is not necessary to scale the drawings, and details that are not necessary to understand the present invention may be omitted. Furthermore, elements that are at least substantially identical or have at least substantially identical functions are indicated by the same number, Reference Numbers 1.Weighing of glaze recipe raw materials 2.Grinding 3.Setting of re010gic parameters 4.Spray glazing .Glaze Firing Detailed Description of the Invention Detailed In the description, the preferred embodiments of the porcelain tableware that is the subject of the invention are explained only for a better understanding of the subject and in a way that does not create any limiting effect. The invention is generally related to the white glaze composition and production method with crystal effects developed for porcelain tableware. Here, firstly, the weighing (l) process of the glaze recipe raw materials is carried out. The raw materials, which are ground to a certain grain size distribution in the mill, are filtered and then undergo a number of processes in order to make them suitable for the spray glazing (4) process. In the invention, during the weighing (l) of the glaze recipe raw materials, the content of the glaze recipe is weighted; The 0-5% lower and upper limits are the minimum and maximum limits on the weight of each component, respectively. The difference of the invention from a standard porcelain glaze production process and the process steps that enable the creation of a porcelain glaze composition with stable crystal effects without kiln cracks and explosions on the surface by being applied to porcelain tableware products are weighing of glaze recipe raw materials (l), spray glazing (4) and glazed firing (5). ) operations. In the production process, following the grinding process (2), the adjustment of the fine rheological parameters (3) takes place. While the density of the aqueously ground glaze is 1500-1600 gr/lt, the flow value is between 60-85 seconds for a Fordcup with a 2 mm mouth diameter. After adjusting the rheological parameters (3), the glaze is applied to the porcelain biscuit surface by spraying using a gun (4). Another feature of the product that differs from a standard porcelain spray glazing process is that 30-40% more glaze is applied to the surface than the amount of glaze applied to the surface in the spray glazing method for a standard tableware. This application difference is one of the critical parameters in the formation of crystal effects and is effective in keeping the effect formation stable. Following this process, the glaze firing (5) process, which is the final stage of porcelain production, takes place. Another critical parameter that enables the invention to achieve stable crystallization, unlike previous techniques, is the glaze firing regime. In order for the crystal effects to vary minimally from firing to firing, the preferred firing regime of the said invention is to raise and lower the temperature in a temperature range between 300 0C and 1000 0C in terms of temperature and time, in a way to create peaks and troughs between approximately 1000 0C and 1000 0C. Following the peaks and troughs created in the regime, the oven temperature is brought from 1100 0C to room temperature in approximately 60 minutes to 90 minutes. Heating and cooling the regime at peak and trough between 1050°C includes a sintering mechanism that prevents the growth of crystals, obtaining a stable effect and surface defects, and with the effect of the raw material ratios in the recipe after firing, the glaze phase structure is approximately 3% 5- in proportions that enable the desired properties to be obtained. 55 Villemit (Zn28i04), TR TR TR

Claims (1)

1.ISTEMLER Bulus; porselen sofra esyalari için gelistirilen kristal efektlere sahip beyaz renkli sir kompozisyonu olup özelligi; bulusun yüzeyinde firin çikisi çatlaklar ve patlamalar bulunmamasi, stabil kristal efektlere sahip porselen sir kompozisyonu olusturulmasini saglayan oranlarda NazO, K20, CaO, TiOz, MgO, A1203, ZnO ve SiOz ve içermesidir. Istem l”e kristal efektlere sahip beyaz renkli sir kompozisyonu olup, özelligi; bahsedilen Istem 2°ye uygun kristal efektlere sahip beyaz renkli sir kompozisyonu olup, özelligi; bulusun tercih edilen uygulamalarinda bahsedilen sir reçetesi hammaddelerinin agirlikça Bulus kristal efektlere sahip beyaz renkli sir kompozisyonu üretim yöntemi ile ilgili olup, özelligi; Sir reçete hammaddelerinin tartimi (1) Ögütme (2) Reolojik parametrelerin ayarlanmasi (3) Püskürtme sirlama (4) Sirli Pisirim (5) proseslerini içermesidir. Istem 4'e uygun kristal efektlere sahip beyaz renkli sir kompozisyonu üretim yöntemi olup, özelligi; bahsedilen sir reçete hammaddelerinin tartimi (1) islemi ardindan ögütme (2) islem adimini içermesidir. Istem 4”e uygun kristal efektlere sahip beyaz renkli sir kompozisyonu üretim yöntemi olup, özelligi; ögütme (2) basamaginda, ürünün tercih edilen uygulamalarinda bulus konusu sir kompozisyonunun tane boyut dagiliminin D90 degeri 14-20 mikron olana kadar sulu olarak ögütülmesidir. Istem 4”e uygun kristal efektlere sahip beyaz renkli sir kompozisyonu üretim yöntemi olup, özelligi; ögütme (2) isleminin ardindan reoloj ik parametrelerin ayarlanmasi (3) islem adimini içermesidir. Istem 7 ”de bahsedilen reolojik parametrelerin ayarlanmasi (3) basamagi olup, özelligi; sulu olarak ögütülen sir yogunlugunun 1500-1600 gr/ lt, akis degerinin ise 2 mm agiz çapina sahip fordcup için 60-85 saniye olacak sekilde ayarlanmasidir. Istem 4°e uygun kristal efektlere sahip beyaz renkli sir kompozisyonu olup, özelligi; reolojik parametrelerin ayarlanmasi (3) isleminin ardindan püskürtme sirlama (4) islem adimini içermesidir. Istem 9”a uygun kristal efektlere sahip beyaz renkli sir kompozisyonu olup, özelligi; püskürtme sirlama (4) islem adiminda standart bir sofra esyasi için püskürtme sirlama yönteminde yüzeye uygulanan sir miktarindan %30-40 daha fazla sir uygulanmasidir. Istem 4”e uygun kristal efektlere sahip beyaz renkli sir kompozisyonu olup, özelligi; bahsedilen sirli pisirim (5) isleminin sicaklik ve süre olarak; 300 0C ila 1000 °C arasinda 0C arasinda bir sicaklik araliginda yaklasik 30 dakika ila 60 dakika arasindaki sürede; 1320 0C ila 1050 CC arasinda bir sicaklik araliginda yaklasik 5 dakika ila 20 dakika arasindaki arasindaki sürede çikmasi 1050°C-1 100 ° arasinda tepe ve çukur olusturacak sekilde sicaklik yükseltilip düsürülmesi ve rejimde olusturulan tepe-çukur noktalari sonrasi 1100 °C sicaklik noktasindan yaklasik 60 dakika ila 90 dakika arasindaki sürede firin sicakliginin oda sicakligi seviyesine getirilmesidir. Istem l'e uygun kristal efektlere sahip beyaz renkli sir kompozisyonu olup , özelligi; pisirim sonrasi sir mikro-yapisinda yaklasik %35-55 Villemit (anSiO4), %0-10 kristobalit (SiOz), %30-60 camsi faz içermesidir. TR TR TR1. CLAIMS Invention; It is a white glaze composition with crystal effects developed for porcelain tableware and its feature is; The invention's surface does not have kiln exit cracks and explosions, and it contains NazO, K20, CaO, TiOz, MgO, Al2O3, ZnO and SiOz in proportions that enable the creation of a porcelain glaze composition with stable crystal effects. It is a white colored glaze composition with crystal effects, and its feature is; It is a white colored glaze composition with crystal effects in accordance with Claim 2, and its feature is; In the preferred applications of the invention, the mentioned glaze recipe raw materials are mostly related to the production method of the white colored glaze composition with the Invention crystal effects, and its feature is; The glaze recipe includes the processes of weighing raw materials (1) Grinding (2) Adjusting rheological parameters (3) Spray glazing (4) Glaze Firing (5). It is a white colored glaze composition production method with crystal effects in accordance with claim 4, and its feature is; The mentioned secret is that the recipe includes the weighing (1) process of the raw materials, followed by the grinding (2) process step. It is a white colored glaze composition production method with crystal effects in accordance with Claim 4, and its feature is; In the grinding (2) step, in the preferred applications of the product, the grain size distribution of the glaze composition of the invention is wet-milled until the D90 value is 14-20 microns. It is a white colored glaze composition production method with crystal effects in accordance with Claim 4, and its feature is; It includes the process step (3) of adjusting the rheological parameters after the grinding (2) process. Adjustment of the rheological parameters mentioned in Request 7 is the (3) step and its feature is; The wet grinding glaze density is set to 1500-1600 gr/lt and the flow value is set to 60-85 seconds for a Fordcup with a mouth diameter of 2 mm. It is a white colored glaze composition with crystal effects in accordance with claim 4, and its feature is; It involves setting the rheological parameters (3) followed by the spray glazing (4) process step. It is a white colored glaze composition with crystal effects in accordance with Claim 9, and its feature is; In the spray glazing (4) process step, 30-40% more glaze is applied to the surface than the amount of glaze applied to the surface in the spray glazing method for a standard tableware. It is a white colored glaze composition with crystal effects in accordance with Claim 4, and its feature is; The temperature and duration of the mentioned glaze firing (5) process; In a temperature range between 300 0C and 1000 °C for a period of approximately 30 minutes to 60 minutes; It emergs between 1320 0C and 1050 cc in a temperature range between approximately 5 minutes to 20 minutes, between 1050 ° C-1 100 °. It is the process of bringing the oven temperature to room temperature within a period of minutes to 90 minutes. It is a white colored glaze composition with crystal effects in accordance with claim 1, and its feature is; After firing, the glaze microstructure contains approximately 35-55% Villemite (anSiO4), 0-10% cristobalite (SiOz), and 30-60% glassy phase. TR TR TR
TR2020/22115A 2020-12-29 2020-12-29 WHITE CRYSTAL EFFECT GLAZE FOR PORCELAIN PRODUCTS TR202022115A2 (en)

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