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TR2022011834A2 - AN ADDITIVE SUITABLE TO BE USED FOR PACKAGING PAPER AND SIMILAR PAPER - Google Patents

AN ADDITIVE SUITABLE TO BE USED FOR PACKAGING PAPER AND SIMILAR PAPER

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Publication number
TR2022011834A2
TR2022011834A2 TR2022/011834A TR2022011834A TR2022011834A2 TR 2022011834 A2 TR2022011834 A2 TR 2022011834A2 TR 2022/011834 A TR2022/011834 A TR 2022/011834A TR 2022011834 A TR2022011834 A TR 2022011834A TR 2022011834 A2 TR2022011834 A2 TR 2022011834A2
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TR
Turkey
Prior art keywords
paper
paper industry
additive
production
packaging boxes
Prior art date
Application number
TR2022/011834A
Other languages
Turkish (tr)
Inventor
Türkdemi̇r Emi̇ne
Original Assignee
Modern Karton Sanayi Ve Ticaret Anonim Sirketi
Modern Karton Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇
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.)
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Application filed by Modern Karton Sanayi Ve Ticaret Anonim Sirketi, Modern Karton Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ filed Critical Modern Karton Sanayi Ve Ticaret Anonim Sirketi
Priority to TR2022/011834A priority Critical patent/TR2022011834A2/en
Publication of TR2022011834A2 publication Critical patent/TR2022011834A2/en
Priority to PCT/TR2023/050621 priority patent/WO2024025496A1/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02Cellulose; Modified cellulose
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/005Microorganisms or enzymes
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10Packing paper

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Paper (AREA)

Abstract

Buluş, kağıt sektöründe bilhassa ambalaj kutuların üretiminde kullanıma uygun, nihai ürünün bilhassa hava geçirgenlik, su emicilik ve mekanik özelliklerinde iyileşmenin gerçekleştirilmesine olanak sağlayan bakteriyel selüloz içerikli bir katkı maddesi ile ilgilidir.The invention relates to an additive containing bacterial cellulose, which is suitable for use in the production of packaging boxes, especially in the paper industry, and which allows the improvement of the air permeability, water absorbency and mechanical properties of the final product.

Description

TARIFNAME AMBALAJ KAGIDI VE BUNA BENZER KAGITLARIN ELDESINDE KULLANIMA UYGUN BIR KATKI MADDESI TEKNIK ALAN Bulus, Dünya çapinda çevre bilincinin artmasi ile kagit üretiminde birincil elyaf kullanimi yerine yenilebilir kaynaklarin hammadde olarak kullanilmasina cevaben biyobozunur, düsük hava geçirgenlik, su emmeye karsi direnç- bariyer saglayan ve mukavemet degerlerinde artis saglayan özellikli kagitlarin üretilmesine olanak saglayan bir katki maddesi ve bunun kagit sektöründe katki maddesi olarak kullanimi ile ilgilidir. ÖNCEKI TEKNIK Teknikte bilindigi üzere kagidin hammaddesi bitkisel kaynakli selülozdur. Ilgili teknik alanda kagitlarin eldesinde selüloz kaynagi olarak agaçlar kullanilmakta ve genellikle agaçlarin kesilmesi, kabuklarin ayrilmasi, soyulmasi, kütüklere bölünmesi, parçalara küçültülmesi, hamur haline getirilmesi ve içerisinde yer alan selülozun ayrilmasi islem adimlari gerçeklestirilmektedir. Dünya'da nüfusun artmasi ve süregelen kagit sektöründeki ihtiyaçlarin giderilmesi için yüksek miktarda agaçlarin hammadde olarak kullanilmasi, hem çevre için zararlarin olusmasina hem de ihtiyaci karsilamaya yönelik maliyetlerin artmasina neden olmaktadir. Agaçlarin bu denli yüksek miktarda hammadde olarak kullanilmasi ilerleyen dönemlerde kagit sektörü için sürdürülebilir olmadigi tespit edilmistir. Bu nedenle Dünya'da özellikle çevre bilincinin artmasi, birçok sektörde oldugu gibi kagit sektöründe de yenilebilir kaynaklarin arayisina yönelik taleplerin artmasina neden olmaktadir. Ufuk 2020 Programi Yesil Mutabakat (Green Deal) Çagrisi, 2050 yilina kadar Avrupa kitasini iklim nötr hale getirmek konusundaki genel hedefi ile bir dizi derinden dönüstürücü politikalar tasarlamayi, Ar-Ge ve yenilik projeleri yoluyla bu hedeflere katki sunmayi amaçlamaktadir. Kurumsal sirketler kullanmakta olduklari ambalajlarinda birincil elyaf kullanimi yerine geri dönüsümlü kagit kullanimini tercih etmekte, bununla beraber ürünün mukavemetinden ödün vermek istememektedir. Bilhassa ambalaj kutu üretimlerinde kullanilan kagitlarin özellikle kuru hava sartlarinda nemini kaybetmesi ile elyaf kirilmalari kutunun kapaklarinda deformasyon ve kirilmalara sebep olmaktadir. Ilgili teknik alandaki uzmanlar, söz konusu mukavemet degerlerine sahip ve kagit sektöründe hammadde olarak kullanilacak bu yenilebilir kaynaklarin olumsuz sonuçlarini gidermeye yönelik arastirma ve gelistirme faaliyetleri yürütmektedir. Sonuç olarak, kagit sektöründe bilhassa ambalaj kutularin üretiminde çevre bilinci, maliyet artisi, sürdürülebilir bir üretim hammaddesi eldesi için yenilebilir kaynaklarin arastirilmasi ve gelistirilmesi ile ilgili çalismalarin yapilmasi zorunluluk halini almistir. BULUSUN KISA AÇIKLAMASI Bulus, kagit sektörü ve bilhassa ambalaj kutularin eldesinde hammadde olarak kullanilabilir bir katki maddesi ile ilgilidir. Bulusun amaci, kagit sektöründe hammadde kaynagi olarak kullanima uygun sürdürülebilir, biyobozunur ve yenilenebilir bir katki maddesi ortaya koymaktir. Bulusun amaci, en azindan ayni mukavemet degerlerinde kagit üretimi için hammadde kaynagi olarak kullanima uygun bir katki maddesi ortaya koymaktir. Bulusun bir diger amaci, %100 geri dönüstürülmüs kagitlarin hammadde olarak kullanildigi bilhassa ambalaj kutularin, mukavemet degerlerinde ve teknik olumsuzluklarin giderilmesinde kullanima uygun bir katki maddesi ortaya koymaktir. Tüm bunlari saglamak üzere bulus, kagit sektöründe bilhassa ambalaj kutularin üretiminde kullanima uygun, nihai ürünün bilhassa hava geçirgenlik, su emicilik ve mekanik özelliklerinde iyilesmenin gerçeklestirilmesine olanak saglayan bakteriyel selüloz içerikli bir katki maddesi ile ilgilidir. Bulusun mümkün yapilanmasi, katki maddesinin kagit sektöründe bilhassa ambalaj kutularin bünyesinde agirlikça %5 ila %40 araliginda bir degerde yer almasi ile karakterize edilmesidir. Bulusun mümkün yapilanmasi, katki maddesinin %10 ila %20 araliginda bir degerde kagit sektöründe bilhassa ambalaj kutularin bünyesinde yer almasi ile karakterize edilmesidir. Bulus bir diger yönüyle, %100 geri dönüstürülmüs kagitlarin hammadde olarak kullanildigi kagit sektöründe bilhassa ambalaj kutularin üretiminde agirlikça %5 ila geçirgenlik, su emicilik ve mekanik özelliklerinde iyilesmenin gerçeklestirilmesine olanak saglayan bir bakteriyel içerikli bir katki maddesi ile ilgilidir. Bulusun mümkün yapilanmasi, katki maddesinin %100 geri dönüstürülmüs kagitlarin hammadde olarak kullanildigi kagit sektöründe bilhassa ambalaj kutularin üretiminde agirlikça %10 ila %20 araliginda bir degerde yer almasi ile karakterize edilmesidir. BU LUSUN DETAYLI AÇIKLAMASI Bu detayli açiklamada bulus konusu, kagit sektöründe ve bilhassa ambalaj kutu üretiminde sürdürülebilir, yenilebilir ve biyobozunur hammadde kaynagi olarak kullanima uygun bir katki maddesi ile ilgili olup, sadece konunun daha iyi anlasilmasina yönelik hiçbir sinirlayici etki olusturmayacak örneklerle açiklanmaktadir. Kagit sektöründe hammadde kaynagi olarak selüloz kullanilmaktadir. Selülozun en büyük elde kaynagi ise agaçlardir. Agaçlar gibi her bitki bilhassa gövdelerinde selüloz, hemiselüloz ve lignin ile birlikte bulunmaktadir. Söz konusu diger bilesiklerden ayrilan selüloz, kagit eldesinde çesitli proses islem adimlarindan geçirilerek kagit üretiminde kullanilmaktadir. Bulusa konu katki maddesi de esasen bir selüloz kaynagidir. Buna göre bulusta, selüloz kaynagi olarak bakteriler kullanilmaktadir. Bulusta bakterilerden elde edilen selüloz için bakteriyel selüloz ifadesi kullanilacaktir. Bulusta sözü edilen "selüloz", (CsHioOs)n kapali formülüne sahip bir karbonhidrattir. Buna göre selüloz eldesi için karbon kaynagi gerekmektedir. Genellikle karbon kaynagi olarak glukoz kullanilmaktadir. Karbon kaynagi olarak melas, fruktoz, mannitol, gliserol ve sükroz da kullanilabilmektedir. Bulusta bakteri susu olarak glikoz, melas, fruktoz, mannitol, gliserol, sükroz karbon kaynaklarini kullanan bakteriler kullanilabilmektedir. Tercihen bulusta bakteri olarak Komagataeibacter, Gluconacetobacter, Acetobacter, Agrobacterium, Aerobacter, Achromobacter, Alcaligenes, Azotobacter, Pseudomonas, Rhizobium, Sarcina, Salmonella ve Escherichia bakteri türleri kullanilabilmektedir. Bulusta tercih edilen bakteri susu kambucha kültürüdür. Söz konusu kombucha kültürü maya ve acetobacter bakterilerinin birlikte çalistigi simbiyotik sistemdir. Buna göre bakteri susu statik bir ortam olup; 23 ve 25°C sicakliklarda, %50-%60 bagil nem sabit sartlarinda ekimleri gerçeklestirilmektedir. Bulusun konusu, kagit sektöründe bilhassa ambalaj kutu üretiminde selüloz hammadde kaynagi bakteriyel selülozu bilesen olarak içeren bir katki maddesi ile Teknikte bilindigi üzere, tamami geri dönüstürülmüs kagitlarin hammadde olarak kullanildigi bilhassa ambalaj kagitlarin, mukavemet degerleri istenilen verimlilikte olmamaktadir. Bu durum kagit sektöründe geri dönüstürülmüs kagitlarin hammadde olarak kullanilmasinda engel teskil etmektedir. Bunun önüne geçmek üzere kagit sektöründe hammadde olarak belli agirlikça oranlarda geri dönüstürülmüs kagitlarin kullanilabilmesi söz konusudur, bu da yenilebilir kaynaklarin yüksek miktarlarda veya nihai ürünlerin eldesinde tamaminin yenilebilir kaynaklardan eldesine engeldir. Bu olumsuzluklardan bazilari, elyaflarin geri dönüstürülme sayisi arttikça elyaf uzunluklarinin düsmesi, buna bagli olarak da kutu haline getirildiginde kutularin kenar kisimlarinda meydana gelen kirilma (cracking olarak bilinmektedir), patlama indeksi degerlerinde düsüs, SCT-CD degerlerinde düsüs dolayisi ile de kutu mukavemetlerinde düsüslerin yasanmasidir. Özellikle yeni tip, yüksek hizli GAP former tipi kagit makinelerinde üretilen yeni nesil kagitlar -bunlar yüksek yogunluklu kagitlar olarak bilinmektedir- benzer mukavemetlerde daha ince kagit seklinde üretilmektedir. Homojenlik olarak eski tip kagitlardan daha iyi yapiya sahip olmalarina ragmen ince olmalari sebebi ile bükülmeye karsi dirençleri kalin kagitlara göre daha düsüktür. Bulusun ilgili teknik alana saglamak istedigi esas yenilik ise kagit sektöründe hammadde olarak tamamen %100 geri dönüstürülmüs kagitlarin kullanilmasinin mümkün olmasini saglamaktir. Buna göre mevcut bulus sahipleri, yapmis olduklari arastirma ve gelistirme faaliyetleri ile konu edilen bakteri suslarindan elde edilen bakteriyel selülozlarin, belirlenen agirlikça oranlarda katki maddesi olarak kullanilmasi sayesinde geri kalan agirlikça oranlarda %100 geri dönüstürülmüs kagitlarin hammadde olarak kullanilabilecegini tespit etmislerdir. Buna göre bulusta, bilhassa ambalaj kutularin eldesinde %100 geri dönüstürülmüs kagitlarin hammadde olarak kullanilmasi durumunda en azindan agirlikça %5 en fazla agirlikça %40 degerinde bakteriyel selüloz içerikli katki maddesinin kullanilmasi söz konusudur. Bahsedilen deger araliklari, mevcut bulus sahiplerinin yapilan arastirma ve gelistirilmeler sonucunda belirlenmistir. Bahsedilen degerlerin altinda veya üstünde %100 geri dönüstürülmüs kagitlarin, bilhassa ambalaj kutularin eldesinde hammadde olarak kullanilmasina engel oldugu gözlemlenmistir. Ambalaj kagidi üretiminde katki maddesi olarak bakteriyel selüloz kullanimindaki hedef, biyobozunur, yenilenebilir, çevreci bir katki maddesi ile kagidin özelliklerinde meydana getirilecek degisimlerin uygun alanlarda kullanilmasidir. Bu özellikler; bükülme özelliginde iyilesme ile kirilma problemine fayda saglamasi; su emmeye karsi bariyer özellik kazandirilmasi ile dogal yöntemle, tutkallama yapmadan su emme direnci kazandirilmasi; hava geçirgenliginin düsük olmasi istenen kullanim alanlari olur ise bu alanlarda kullanilmasidir. Bulus konusu, kagit sektöründe bilhassa ambalaj kutularin üretiminde hammadde olarak %100 geri dönüstürülmüs kagitlarin kullanilmasini saglanmasi ile ilgili iken; istenilen mukavemet degerlerinde nihai ürünlerin eldesi için agirlikça %5 ila %40 araliginda bir degerde bakteriyel selüloz içerikli katki maddesinin bilesen olarak yer almasi ile ilgilidir. Tercihen bu deger agirlikça %10 ila %30 araliginda bir degerdir. En tercih edilen deger ise bahsedilen katki maddesinin, kagit sektöründe bilhassa ambalaj kutulari bünyesinde agirlikça %10 ila %20 araliginda bir degerde olmasidir. Bulus sahiplerinin, en azindan istenilen mukavemet degerlerinde ambalaj kutularin eldesi ile ilgili yapmis olduklari testlerin sonuçlari Tablo 1'de paylasilmistir. Tablo 1'de yer alan numunelerin, %100 geri dönüstürülmüs kagitlarin hammadde olarak kullanildigi nihai ürün kagitlardir. Bulusa konu katki maddesini agirlikça %5 oraninda içermesi ile birlikte teste tabi tutulan kagitlarin tüm mekanik özelliklerinde iyilesmelerin gözüktügü ortadadir. Bahsedilen mekanik özelliklerin iyilesmesi agirlikça %40'a kadar bakteriyel selüloz içeren numunelere kadar devam etmektedir. Bu degerler üzerinde istenilen mekanik özelliklere sahip numuneler elde edilememektedir. Yapilan çalismalarda optimum özellikler ise agirlikça %10 ve Teknikte bilindigi üzere kagit üretiminde %100 geri dönüstürülmüs kagitlarin hammadde olarak kullanilmalarindaki en büyük problemlerin düsük hava geçirgenlik ve kirilganlik degerlerine sahip olmalaridir. Bu problemlere bagli olarak elde edilen nihai ürün kagitlarin su emicilik ve patlama mukavemet degerlerinde de düsüklükler söz konusudur. Mevcut bulusa konu katki maddesi, belirtilen agirlikça oranlarda kullanilmasi ve sagladigi fonksiyonalite sayesinde %100 geri dönüstürülmüs kagitlarin, kagit sektöründe hammadde olarak kullanimlari önündeki engelleri kaldirmaktadir. Bulusa konu katki maddesinin belirtilen agirlikça oranlarda içermesi ile nihai ürün %100 geri dönüstürülmüs kagitlardan elde edilen ambalaj kartonlarin su emmeye karsi direncinde 300 katina kadar artis, kirilma degerlerinde katina kadar artis gözlemlenmistir. Bulusa konu katki maddesinin belirtilen agirlikça oranlarda kullanilmasi ile %100 geri dönüstürülmüs kagitlarin, kagit sektöründe istenilen mukavemet degerlerinde ürünlerin eldesi mümkün olmustur ve bu sekilde sürdürülebilir, yenilebilir ve ayrica biyobozunur hammaddelerin kullanilabilmesi mümkün kilinabilmektedir. Tablo 1: Bulusa konu katki maddelerini agirlikça %5, %10 ve %20 degerlerinde içeren %100 geri dönüstürülmüs kagitlari hammadde olarak içeren ambalaj kutulari ile katki maddesi içermeyen %100 geri dönüstürülmüs kagitlari hammadde olarak içeren referans ambalaj kutularin mukavemet degerlerinin gösterimi. TR TR TR TR DESCRIPTION AN ADDITIVE SUITABLE FOR USE IN THE PRODUCTION OF PACKAGING PAPER AND SIMILAR PAPER TECHNICAL FIELD The invention was developed in response to the increase in environmental awareness worldwide and the use of renewable resources as raw materials instead of the use of primary fiber in paper production, providing biodegradable, low air permeability, resistance to water absorption - barrier and strength. It is about an additive that allows the production of specialty papers that increase their value and its use as an additive in the paper industry. BACKGROUND ART As is known in the art, the raw material of paper is cellulose of vegetable origin. In the relevant technical field, trees are used as a source of cellulose in the production of papers, and the process steps are generally carried out by cutting the trees, removing the bark, peeling them, dividing them into logs, reducing them into pieces, turning them into pulp and separating the cellulose contained in them. The increase in the population in the world and the use of large amounts of trees as raw materials to meet the needs in the ongoing paper industry cause both harm to the environment and an increase in the costs of meeting the need. It has been determined that using such high amounts of trees as raw materials is not sustainable for the paper industry in the future. For this reason, increasing environmental awareness in the world causes increasing demands for the search for renewable resources in the paper industry, as in many other sectors. Horizon 2020 Program Green Deal Call aims to design a series of deeply transformative policies with the general goal of making the European continent climate neutral by 2050, and to contribute to these goals through R&D and innovation projects. Corporate companies prefer the use of recycled paper instead of primary fiber in their packaging, but do not want to compromise on the strength of the product. In particular, the papers used in packaging box production lose moisture, especially in dry weather conditions, and fiber breakage causes deformation and breakage in the lids of the box. Experts in the relevant technical field carry out research and development activities to eliminate the negative consequences of these renewable resources, which have the mentioned strength values and will be used as raw materials in the paper industry. As a result, in the paper industry, especially in the production of packaging boxes, it has become necessary to carry out studies on environmental awareness, cost increase, and the research and development of renewable resources to obtain sustainable production raw materials. BRIEF DESCRIPTION OF THE INVENTION The invention relates to an additive that can be used as a raw material in the paper industry and especially in the production of packaging boxes. The aim of the invention is to introduce a sustainable, biodegradable and renewable additive suitable for use as a raw material source in the paper industry. The aim of the invention is to provide an additive suitable for use as a raw material source for the production of paper with at least the same strength values. Another aim of the invention is to provide an additive suitable for use in improving the strength values and eliminating technical drawbacks, especially in packaging boxes where 100% recycled papers are used as raw materials. In order to achieve all these, the invention relates to an additive containing bacterial cellulose, which is suitable for use in the paper industry, especially in the production of packaging boxes, and allows improvements in the air permeability, water absorbency and mechanical properties of the final product. The possible embodiment of the invention is characterized by the fact that the additive is present in a value between 5% and 40% by weight, especially in the packaging boxes in the paper industry. The possible embodiment of the invention is characterized by the presence of the additive in a value between 10% and 20%, especially in the packaging boxes in the paper industry. In another aspect, the invention relates to an additive with a bacterial content that allows an improvement of 5% by weight in permeability, water absorbency and mechanical properties, especially in the production of packaging boxes in the paper industry where 100% recycled papers are used as raw materials. The possible embodiment of the invention is characterized by the additive being present at a value between 10% and 20% by weight, especially in the production of packaging boxes in the paper industry where 100% recycled papers are used as raw materials. DETAILED DESCRIPTION OF THE INVENTION In this detailed explanation, the subject of the invention is about an additive suitable for use as a sustainable, edible and biodegradable raw material source in the paper industry and especially in the production of packaging boxes, and is explained only with examples that will not create any limiting effect for a better understanding of the subject. Cellulose is used as a raw material source in the paper industry. The biggest source of cellulose is trees. Every plant, such as trees, contains cellulose, hemicellulose and lignin, especially in their trunks. Cellulose, which is separated from the other compounds in question, is used in paper production by passing through various process steps to obtain paper. The additive subject to the invention is essentially a source of cellulose. Accordingly, in the invention, bacteria are used as the source of cellulose. In the invention, the expression bacterial cellulose will be used for cellulose obtained from bacteria. The "cellulose" mentioned in the invention is a carbohydrate with the closed formula (CsHioOs)n. Accordingly, a carbon source is required to obtain cellulose. Generally, glucose is used as the carbon source. Molasses, fructose, mannitol, glycerol and sucrose can also be used as carbon sources. In the invention, bacteria that use glucose, molasses, fructose, mannitol, glycerol and sucrose carbon sources can be used as bacterial strain. Preferably, Komagataeibacter, Gluconacetobacter, Acetobacter, Agrobacterium, Aerobacter, Achromobacter, Alcaligenes, Azotobacter, Pseudomonas, Rhizobium, Sarcina, Salmonella and Escherichia bacterial species can be used as bacteria in the invention. The preferred bacterial strain in the invention is kambucha culture. The kombucha culture in question is a symbiotic system in which yeast and acetobacter bacteria work together. Accordingly, bacterial water is a static environment; Planting is carried out under constant conditions of 50%-60% relative humidity at temperatures of 23 and 25°C. The subject of the invention is an additive containing bacterial cellulose, the source of cellulose raw material, as a component, especially in the production of packaging boxes in the paper industry. As it is known in the art, the strength values of packaging papers, especially those where completely recycled papers are used as raw materials, are not at the desired efficiency. This situation poses an obstacle to the use of recycled papers as raw materials in the paper industry. In order to prevent this, it is possible to use recycled papers in certain weight ratios as raw materials in the paper industry, which prevents the use of renewable resources in high quantities or the production of final products entirely from renewable resources. Some of these negativities are the decrease in fiber lengths as the number of recycling of fibers increases, the resulting breakage on the edges of the boxes when they are turned into boxes (known as cracking), the decrease in explosion index values, the decrease in SCT-CD values and therefore the decrease in box strength. Especially the new generation papers produced on new type, high-speed GAP former type paper machines - these are known as high density papers - are produced in the form of thinner paper with similar strengths. Although they have a better structure than old-style papers in terms of homogeneity, their resistance to bending is lower than thick papers because they are thinner. The main innovation that the invention aims to provide to the relevant technical field is to make it possible to use completely 100% recycled papers as raw materials in the paper industry. Accordingly, the present inventors have determined that by using the bacterial celluloses obtained from the bacterial strains in question through their research and development activities as additives in the determined weight ratios, the remaining 100% recycled papers can be used as raw materials. Accordingly, in the invention, especially when 100% recycled papers are used as raw materials in the production of packaging boxes, it is possible to use at least 5% by weight and at most 40% by weight of bacterial cellulose-containing additives. The mentioned value ranges were determined as a result of the research and development of the current inventors. It has been observed that below or above the mentioned values, it prevents the use of 100% recycled papers as raw materials, especially in the production of packaging boxes. The goal of using bacterial cellulose as an additive in packaging paper production is to use a biodegradable, renewable, environmentally friendly additive to change the properties of the paper in appropriate areas. These features; It benefits the breakage problem by improving bending properties; It provides barrier properties against water absorption and water absorption resistance with a natural method, without gluing; If there are areas where air permeability is desired to be low, it should be used in these areas. While the subject of the invention is about ensuring the use of 100% recycled papers as raw materials in the paper industry, especially in the production of packaging boxes; It is related to the inclusion of bacterial cellulose-containing additive as a component in the range of 5% to 40% by weight in order to obtain the final products at the desired strength values. Preferably, this value is between 10% and 30% by weight. The most preferred value is that the additive in question is between 10% and 20% by weight, especially in packaging boxes in the paper industry. The results of the tests carried out by the inventors to obtain packaging boxes with at least the desired strength values are shared in Table 1. The samples in Table 1 are final product papers using 100% recycled papers as raw materials. It is obvious that improvements were observed in all mechanical properties of the tested papers with the inclusion of the additive subject to the invention at a rate of 5% by weight. The improvement of the mentioned mechanical properties continues for samples containing up to 40% bacterial cellulose by weight. Samples with desired mechanical properties cannot be obtained above these values. In the studies conducted, the optimum properties are 10% by weight, and as it is known in the art, the biggest problems in using 100% recycled papers as raw materials in paper production are their low air permeability and fragility values. Due to these problems, there are also decreases in the water absorbency and bursting resistance values of the final product papers. The additive subject to the present invention removes the obstacles to the use of 100% recycled papers as raw materials in the paper industry, thanks to its use in the specified weight ratios and the functionality it provides. By containing the additive subject to the invention in the specified weight ratios, an increase of up to 300 times in the resistance to water absorption and an increase in the breaking values of the final product packaging cardboards obtained from 100% recycled papers were observed. By using the additive subject to the invention in the specified weight ratios, it has become possible to obtain 100% recycled papers and products with the desired strength values in the paper industry, and in this way, it is possible to use sustainable, edible and biodegradable raw materials. Table 1: Illustration of the strength values of packaging boxes containing 100% recycled papers as raw materials containing the additives subject to the invention at 5%, 10% and 20% by weight, and reference packaging boxes containing 100% recycled papers containing no additives as raw materials. TR TR TR TR

Claims (1)

1.ISTEMLER . Bulus, kagit sektöründe bilhassa ambalaj kutularin üretiminde kullanima uygun, nihai ürünün bilhassa hava geçirgenlik, su emicilik ve mekanik özelliklerinde iyilesmenin gerçeklestirilmesine olanak saglayan bakteriyel selüloz içerikli bir katki maddesi. . Istem 1'e uygun ve kagit sektöründe bilhassa ambalaj kutularin bünyesinde agirlikça %5 ila %40 araliginda bir degerde yer almasi ile karakterize edilmesidir. . Önceki istemlerden birine uygun bir katki maddesi olup özelligi; %10 ila %20 araliginda bir degerde kagit sektöründe bilhassa ambalaj kutularin bünyesinde yer almasi ile karakterize edilmesidir. . Bulus, %100 geri dönüstürülmüs kagitlarin hammadde olarak kullanildigi kagit sektöründe bilhassa ambalaj kutularin üretiminde agirlikça %5 ila %40 araliginda bir degerde yer almasi ile karakterize edilen ve bilhassa hava geçirgenlik, su emicilik ve mekanik özelliklerinde iyilesmenin gerçeklestirilmesine olanak saglayan bir bakteriyel içerikli bir katki maddesi. . Istem 4'e uygun bir katki maddesi olup özelligi; %100 geri dönüstürülmüs kagitlarin hammadde olarak kullanildigi kagit sektöründe bilhassa ambalaj kutularin üretiminde agirlikça %10 ila %20 araliginda bir degerde yer almasi ile karakterize edilmesidir. TR TR TR TR1.CLAIMS. The invention is an additive containing bacterial cellulose, which is suitable for use in the paper industry, especially in the production of packaging boxes, and allows improvements in the air permeability, water absorbency and mechanical properties of the final product. . It is in accordance with claim 1 and is characterized by its presence in the paper industry, especially in packaging boxes, at a value between 5% and 40% by weight. . It is an additive according to one of the previous claims and its feature is; It is characterized by its presence in the paper industry, especially in packaging boxes, at a value between 10% and 20%. . The invention is an additive with a bacterial content, which is characterized by its inclusion at a value between 5% and 40% by weight, especially in the production of packaging boxes, in the paper industry where 100% recycled papers are used as raw materials, and which allows improvements in air permeability, water absorbency and mechanical properties. . . It is an additive according to claim 4 and its feature is; It is characterized by a value between 10% and 20% by weight in the paper industry, where 100% recycled papers are used as raw materials, especially in the production of packaging boxes. TR TR TR TR
TR2022/011834A 2022-07-26 2022-07-26 AN ADDITIVE SUITABLE TO BE USED FOR PACKAGING PAPER AND SIMILAR PAPER TR2022011834A2 (en)

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EP0200409B1 (en) * 1985-04-16 1994-06-29 Agency Of Industrial Science And Technology Moulded material comprising bacteria-produced cellulose
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