TW202014578A - Interleaving paper for glass and production method therefor - Google Patents
Interleaving paper for glass and production method therefor Download PDFInfo
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- TW202014578A TW202014578A TW108130593A TW108130593A TW202014578A TW 202014578 A TW202014578 A TW 202014578A TW 108130593 A TW108130593 A TW 108130593A TW 108130593 A TW108130593 A TW 108130593A TW 202014578 A TW202014578 A TW 202014578A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D57/00—Internal frames or supports for flexible articles, e.g. stiffeners; Separators for articles packaged in stacks or groups, e.g. for preventing adhesion of sticky articles
- B65D57/002—Separators for articles packaged in stacks or groups, e.g. stacked or nested
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/66—Salts, e.g. alums
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
- B65D85/48—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for glass sheets
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Packaging Frangible Articles (AREA)
Abstract
Description
本發明關於***玻璃板彼此之間的玻璃***紙及其製造方法。The invention relates to a glass insertion paper inserted between glass plates and a manufacturing method thereof.
近年，由於玻璃板的多用途化，對於玻璃***紙的品質要求日趨嚴格。例如，在液晶顯示器、觸控面板等平板顯示器所使用的玻璃基板，在玻璃基板表面形成有細微的電子部件等，若表面稍微有損傷或污染時，則成為斷線等不良原因而導致產品缺陷。因此，玻璃基板表面被要求高度的透明性。In recent years, due to the versatility of glass plates, the quality requirements for glass inserts have become increasingly strict. For example, in glass substrates used in flat panel displays such as liquid crystal displays and touch panels, fine electronic components are formed on the surface of the glass substrate. If the surface is slightly damaged or contaminated, it may become a cause of defects such as disconnection and cause product defects. . Therefore, a high degree of transparency is required on the surface of the glass substrate.
伴隨著玻璃基板的大型化、量產化，為了提高搬運效率而將玻璃基板堆疊搬運的情況變多。玻璃基板堆疊，則玻璃***紙與玻璃基板的接觸壓力提高，因此造成玻璃***紙中的微量成分、異物等作用於玻璃基板並污染，或賦予不佳情形的機率提高。另一方面，伴隨著對玻璃基板的高精細的加工，玻璃基板表面要求具有更高度的透明性。基於上述情形，對於玻璃***紙品質的要求水準也持續提高。With the increase in size and mass production of glass substrates, there are many cases where glass substrates are stacked and transported in order to improve transport efficiency. When the glass substrates are stacked, the contact pressure between the glass insertion paper and the glass substrate increases. Therefore, trace components and foreign substances in the glass insertion paper act on the glass substrate and contaminate them, or increase the probability of giving a bad situation. On the other hand, along with the high-definition processing of the glass substrate, the surface of the glass substrate is required to have a higher degree of transparency. Based on the above circumstances, the level of quality requirements for glass inserts continues to increase.
對玻璃基板表面的污染被認為有幾個原因。觸控面板用的玻璃基板所使用的鈉鈣玻璃，存在有如玻璃***紙與玻璃基板表面的接觸期間變長，在玻璃基板表面容易產生紙面模樣或燒蝕（burnt）之問題。所謂燒蝕是指玻璃基板中的鈉離子等的可溶性成分與來自水等的氫離子進行離子交換反應，侵蝕玻璃基板的表面造成粗糙，且溶出成分與空氣中的二氧化碳等的酸性氣體反應並析出反應生成物等，藉此於表面見到白霧的現象。The contamination of the surface of the glass substrate is believed to have several causes. The soda-lime glass used for the glass substrate for a touch panel has a problem that the contact period between the glass insertion paper and the surface of the glass substrate becomes longer, and the surface of the glass substrate is prone to paper appearance or burnt. The so-called ablation means that soluble components such as sodium ions in the glass substrate undergo ion exchange reaction with hydrogen ions from water or the like, corroding the surface of the glass substrate to cause roughness, and the dissolved components react with acid gases such as carbon dioxide in the air and precipitate out The reaction product, etc., sees the phenomenon of white mist on the surface.
為了防止此種的玻璃基板表面的燒蝕，提案有種種的方法。例如是，專利文獻1揭示一種玻璃板用***紙，含有沸石以抑制玻璃板的燒蝕發生、且使玻璃板撥水性化以及不引起紙跡附著。 [先前技術文獻] [專利文獻]In order to prevent such ablation of the glass substrate surface, various methods have been proposed. For example, Patent Document 1 discloses an insertion paper for a glass plate, which contains zeolite to suppress the occurrence of ablation of the glass plate, makes the glass plate water-repellent, and does not cause paper marks to adhere. [Prior Technical Literature] [Patent Literature]
[專利文獻1]日本公開專利平7-41034號公報[Patent Document 1] Japanese Laid-Open Patent No. 7-41034
[發明所要解決的課題] 但是，專利文獻1所記載的混合沸石的方法，對燒蝕的效果並不充分。[Problems to be solved by the invention] However, the method of mixing zeolites described in Patent Document 1 has insufficient effect on ablation.
本發明是鑑於上述情況而成者。亦即是，本發明的課題為提供一種玻璃***紙以及其製造方法，能夠降低玻璃板的燒蝕發生。 [用於解決課題的手段]The present invention was made in view of the above circumstances. That is, an object of the present invention is to provide a glass insertion paper and a method for manufacturing the same, which can reduce the occurrence of ablation of a glass plate. [Means for solving problems]
本發明者為了解決上述課題，對燒蝕發生的金屬離子的影響加以檢討，發現鈉含量較多的玻璃***紙的燒蝕發生變少，且與未配合闊葉樹紙漿的情形相較之下，配合闊葉樹紙漿的情形具有難以發生燒蝕的傾向。本發明基於此見解而產生者。亦即是，本發明具有下述構成。In order to solve the above-mentioned problems, the present inventors reviewed the influence of metal ions caused by ablation, and found that glass insert paper with a large sodium content has less ablation, and is mixed with the case of uncombined hardwood pulp. The broadleaf pulp has a tendency to be difficult to ablate. The present invention is based on this knowledge. That is, the present invention has the following structure.
（1）一種玻璃***紙，其為以化學紙漿作為主成分，鈉含量0.03～1.0質量%，基重10～300g/m2 的玻璃***紙，前述化學紙漿中所佔的闊葉樹紙漿的比例為10質量%以上。(1) A glass insert paper, which is chemical pulp as the main component, sodium content 0.03 ~ 1.0 mass%, basis weight 10 ~ 300g/m 2 glass insert paper, the proportion of the broadleaf pulp in the chemical pulp is 10% by mass or more.
（2）一種玻璃***紙的製造方法，其為前述（1）所記載的玻璃***紙的製造方法，其特徵在於在前述化學紙漿的製造步驟以及抄紙步驟的至少一個步驟，使用含有鈉的水。(2) A method for manufacturing glass insert paper, which is the method for manufacturing glass insert paper described in (1) above, characterized in that at least one of the chemical pulp manufacturing step and the papermaking step uses water containing sodium .
（3）一種玻璃***紙的製造方法，其為前述（1）所記載的玻璃***紙的製造方法，其特徵在於在前述化學紙漿的製造步驟、抄紙步驟以及抄紙後的步驟的至少一個步驟，添加含有鈉的化合物。(3) A method of manufacturing glass insert paper, which is the method of manufacturing glass insert paper described in (1) above, characterized by at least one of the steps of manufacturing the chemical pulp, papermaking step, and papermaking step, Add sodium-containing compounds.
（4）前述（3）所記載的玻璃***紙的製造方法，其特徵在於前述含有鈉的化合物為硫酸鈉。 [發明的效果](4) The method for producing glass insert paper described in (3) above, wherein the sodium-containing compound is sodium sulfate. [Effect of invention]
依照本發明的玻璃***紙，能夠降低玻璃板的燒蝕發生。而且，依照本發明的玻璃***紙的製造法，能夠製造前述玻璃***紙。According to the glass insertion paper of the present invention, the occurrence of ablation of the glass plate can be reduced. Furthermore, according to the method for manufacturing glass insertion paper of the present invention, the aforementioned glass insertion paper can be manufactured.
以下對本發明具體的進行說明。以下所示的實施型態僅為一個示例，本發明並不限定並解釋為此些的實施型態。The present invention will be specifically described below. The embodiments shown below are only examples, and the present invention is not limited to and explained as these embodiments.
本實施型態的玻璃***紙以化學紙漿作為主成分且含有鈉。以下對各成分進行說明。The glass insertion paper of the present embodiment has chemical pulp as a main component and contains sodium. Each component will be described below.
（化學紙漿） 本實施型態的玻璃***紙（以下亦適當記載為「***紙」。）以化學紙漿作為主成分。此處，所謂以化學紙漿作為主成分，是指相對於***紙的質量，化學紙漿超過50質量%。化學紙漿相對於***紙的質量，較佳為70質量%以上，更佳為90質量%以上。化學紙漿為經由化學製程製造的纖維素紙漿，例如是牛皮紙漿（KP）、亞硫酸鹽紙漿（SP）、蘇打法紙漿（AP）等。(Chemical pulp) The glass insert paper of the present embodiment (hereinafter also appropriately referred to as "insert paper") uses chemical pulp as a main component. Here, the use of chemical pulp as the main component means that the chemical pulp exceeds 50% by mass relative to the mass of the inserted paper. The chemical pulp is preferably 70% by mass or more, and more preferably 90% by mass or more relative to the mass of the inserted paper. Chemical pulp is cellulose pulp manufactured through a chemical process, such as kraft pulp (KP), sulfite pulp (SP), soda pulp (AP), etc.
以木材作為原料的化學紙漿（木材紙漿）為針葉樹紙漿或闊葉樹紙漿。本發明者發現與未混合闊葉樹紙漿作為化學紙漿的情形相較之下，混合闊葉樹紙漿作為化學紙漿的情形具有燒蝕不易發生的傾向。作為混合闊葉樹紙漿的情形燒蝕不易發生的理由，被認為是如同下述。玻璃板與***紙積層並保管的情形，夏季等的高濕度環境的影響而***紙吸濕並伸展，則發生縐摺，在玻璃板與***紙之間產生間隙，高濕度的空氣與玻璃板直接接觸。高濕度的空氣容易發生後述的燒蝕。因此，如為即使吸濕亦幾乎不會發生縐摺的紙則能夠抑制燒蝕發生。由於與針葉樹紙漿相較之下闊葉樹紙漿的纖維長度短，闊葉樹紙漿的配合量多的話，紙的質地變佳，能夠抑制吸濕所致的縐摺的發生，防止玻璃板與***紙之間的間隙發生，減少燒蝕的發生量。The chemical pulp (wood pulp) using wood as raw material is coniferous pulp or broadleaf pulp. The present inventors found that the case where the mixed hardwood pulp is used as the chemical pulp has a tendency to cause ablation less easily than the case where the unmixed hardwood pulp is used as the chemical pulp. It is considered that the reason why ablation does not easily occur when mixed with hardwood pulp is as follows. When the glass plate and the inserted paper are stacked and stored, the inserted paper absorbs moisture and stretches under the influence of high humidity environment such as summer, and creases occur, resulting in a gap between the glass plate and the inserted paper. High humidity air and the glass plate direct contact. High-humidity air is prone to ablation as described later. Therefore, if it is paper that hardly creases even if it absorbs moisture, the occurrence of ablation can be suppressed. Compared with the coniferous pulp, the fiber length of the hardwood pulp is shorter. If the amount of the hardwood pulp is more, the texture of the paper is better, which can suppress the occurrence of creases caused by moisture absorption and prevent the glass plate from interposing between the paper. Gap occurs to reduce the amount of ablation.
亦即是，本實施型態的***紙為了降低燒蝕的發生量，化學紙漿中所佔的闊葉樹紙漿的比例為10質量%以上。化學紙漿中所佔的闊葉樹紙漿的比例較佳為40質量%以上，更佳為70質量%以上。That is, in order to reduce the occurrence of ablation of the insertion paper of the present embodiment, the proportion of the hardwood pulp in the chemical pulp is 10% by mass or more. The proportion of hardwood pulp in the chemical pulp is preferably 40% by mass or more, and more preferably 70% by mass or more.
再者，作為木材紙漿，較佳為源自於木材的黏著性天然樹脂分的含量低的牛皮紙漿（KP）。而且，作為非以木材為原料的化學紙漿，例如是以楮、結香、麻、洋麻等作為原料的非木材纖維紙漿。Furthermore, the wood pulp is preferably kraft pulp (KP) with a low content of adhesive natural resin derived from wood. In addition, as the chemical pulp that does not use wood as a raw material, for example, non-wood fiber pulp that uses pu, knot, hemp, kenaf, etc. as a raw material.
作為化學紙漿以外的紙漿，舉出半化學紙漿（SCP）、化學磨木紙漿（CGP）等半化學紙漿；碎木紙漿（GP）、熱機械紙漿（TMP、BCTMP）、精鍊磨木紙漿（RGP）等機械紙漿。本實施型態的玻璃***紙，亦可混合1種或2種以上的化學紙漿以外的紙漿。Examples of pulp other than chemical pulp include semi-chemical pulp (SCP) and chemical ground wood pulp (CGP); semi-chemical pulp (GP), thermomechanical pulp (TMP, BCTMP), and refined ground wood pulp (RGP) ) And other mechanical pulp. In the glass insertion paper of this embodiment, one or more types of pulp other than chemical pulp may be mixed.
由於舊紙紙漿一般而言黏著異物、夾雜物、樹脂分多，相較於舊紙紙漿，較佳使用原生紙漿作為***紙的紙漿原料。Since old paper pulp generally has more foreign matter, inclusions, and resin, compared to old paper pulp, it is preferable to use virgin pulp as the raw material of the pulp for inserting paper.
化學紙漿的打漿度（beating degree）較佳為200～700 mlcsf。打漿度係指根據JIS P8121的加拿大標準游離度（Canadian standard freeness）。將化學紙漿的打漿度控制在200～700 mlcsf的範圍內，藉此能夠成為具有作為***紙所必需的機械強度及加工性者。化學紙漿的打漿度小於200 mlcsf時，由於具有***紙的密度提高，緩衝性降低的傾向，因此容易造成玻璃表面損傷。另一方面，化學紙漿的打漿度高於700 mlcsf時，紙張強度減小，具有在搬運流通過程中或製造步驟中斷裂的疑慮。化學紙漿的打漿度較佳為350～600 mlcsf。關於將紙漿打漿的方法，可使用公知的方法。The beating degree of chemical pulp is preferably 200-700 ml csf. Beating degree refers to Canadian standard freeness according to JIS P8121. By controlling the beating degree of chemical pulp in the range of 200 to 700 mlcsf, it can become a person who has the mechanical strength and processability necessary for inserting paper. When the beating degree of chemical pulp is less than 200 mlcsf, the density of the inserted paper tends to increase and the buffering property tends to decrease, so the glass surface is easily damaged. On the other hand, when the beating degree of the chemical pulp is higher than 700 mlcsf, the strength of the paper is reduced, and there is a concern that it may break during the transportation and circulation process or the manufacturing step. The beating degree of chemical pulp is preferably 350 to 600 mlcsf. For the method of beating the pulp, a known method can be used.
（玻璃板的燒蝕） 作為玻璃板的燒蝕發生的機制，習知以來考慮下述2者。亦即是，如在玻璃板表面附著水滴，玻璃中的微量鈉離子溶出至水中，於玻璃板表面形成氫氧化鈉，浸蝕玻璃板的表面並使其粗糙，玻璃板變白濁。而且，玻璃板表面的水滴蒸發之際，鈉離子與空氣中的二氧化碳反應，生成碳酸鈉或碳酸氫鈉，並附著於玻璃板表面，玻璃板變白濁。(Ablation of glass plate) As a mechanism of occurrence of ablation of a glass plate, the following two have been considered from the conventional knowledge. That is, if water droplets are attached to the surface of the glass plate, trace sodium ions in the glass dissolve into the water, and sodium hydroxide is formed on the surface of the glass plate, which erodes and roughens the surface of the glass plate, making the glass plate cloudy. In addition, when water droplets on the surface of the glass plate evaporate, sodium ions react with carbon dioxide in the air to generate sodium carbonate or sodium bicarbonate, and attach to the surface of the glass plate, and the glass plate becomes cloudy.
上述的習知的燒蝕的情形，可以使用一般亮度的螢光燈確認玻璃板的白濁。但是，在觸控面板用的玻璃基板等中，判明了存在有與上述習知的燒蝕不同型態的微小（micro）燒蝕。此種微小的燒蝕，如不使用高亮度的燈並於暗室檢查則無法視認。於觸控面板用的玻璃基板等中，對玻璃基板表面形成細微的電子部件等。因此，即使是此種不使用高亮度的燈並與暗室檢查則無法視認之微小的燒蝕，由於會成為斷線等不良的原因而造成製品缺陷，因而產生問題。In the case of the above-mentioned conventional ablation, the whiteness of the glass plate can be confirmed using a fluorescent lamp of general brightness. However, in glass substrates for touch panels and the like, it has been found that there is a micro ablation of a different type from the above-mentioned conventional ablation. Such tiny ablation cannot be recognized without using a high-intensity lamp and inspecting in a dark room. In glass substrates for touch panels and the like, fine electronic components and the like are formed on the surface of the glass substrate. Therefore, even if such a high-brightness lamp is not used and it is inspected with a dark room, the minute ablation cannot be recognized, which may cause defects such as wire breakage and cause product defects, thus causing problems.
（鈉） 本發明者們發現在***紙含有規定量的鈉的情形，上述的微小的燒蝕具有難以發生的傾向。亦即是，本實施型態的***紙的鈉含量為0.03～1.0質量%。鈉含量如為0.03質量%以上，能夠降低燒蝕的發生量。另一方面，鈉含量如超過1.0質量%，具有鈉的鹽析出至***紙中，污染玻璃板的疑慮。***紙中的鈉含量較佳為0.05～0.5質量%，更佳為0.1～0.3質量%。***紙中的鈉含量能夠藉由測定***紙中的灰分量，進而藉由螢光X線分析測定灰分中的鈉含量而特定。(sodium) The inventors found that when the insertion paper contains a predetermined amount of sodium, the above-mentioned minute ablation tends to be difficult to occur. That is, the sodium content of the insertion paper of the present embodiment is 0.03 to 1.0% by mass. If the sodium content is 0.03% by mass or more, the amount of occurrence of ablation can be reduced. On the other hand, if the sodium content exceeds 1.0% by mass, the salt with sodium may precipitate out into the insert paper and contaminate the glass plate. The sodium content in the inserted paper is preferably 0.05 to 0.5% by mass, and more preferably 0.1 to 0.3% by mass. The sodium content in the inserted paper can be specified by measuring the ash content in the inserted paper, and then measuring the sodium content in the ash by fluorescent X-ray analysis.
玻璃板引起上述微小的燒蝕的原因與機制的明確的解明須待今後的研究，但被認為原因應是玻璃中的鈉與水的氫離子的離子交換反應。然後，微小的燒蝕被認為是以下的機制所引起。The clear explanation of the reason and mechanism of the above-mentioned micro ablation caused by the glass plate needs to be studied in the future, but it is considered that the reason should be the ion exchange reaction between the sodium ion in the glass and the hydrogen ion of water. Then, minute ablation is thought to be caused by the following mechanism.
觸控面板用的玻璃基板通常使用鈉鈣玻璃板。鈉鈣玻璃板在玻璃板表面具有硫酸鹽構成的瑕疵（損傷）防止用保護膜。瑕疵防止用保護膜是藉由下述而形成：在玻璃板的製造時，對玻璃板表面吹送亞硫酸氣體，使玻璃板中的鈉與亞硫酸氣體反應，於玻璃板表面生成硫酸鈉。如吹送亞硫酸氣體則玻璃板中的鈉滲出（移動）至表面附近，因此玻璃板的表面附近成為鈉量缺乏的狀態。推測此引起微小的燒蝕。A soda lime glass plate is usually used for the glass substrate for touch panels. The soda lime glass plate has a protective film for preventing defects (damage) made of sulfate on the surface of the glass plate. The protective film for preventing defects is formed by blowing sulfurous acid gas onto the surface of the glass plate during the manufacture of the glass plate to react sodium in the glass plate with sulfurous acid gas to generate sodium sulfate on the surface of the glass plate. When sulfurous acid gas is blown, the sodium in the glass plate oozes out (moves) to the vicinity of the surface, so the vicinity of the surface of the glass plate becomes in a state of lack of sodium. It is speculated that this causes a minor ablation.
但是，***紙中的鈉含量多的話，具有抑制玻璃板中的鈉離子向***紙滲出（移動）的效果。進而，亦具有***紙中的鈉離子經由硫酸鹽構成的瑕疵防止用保護膜向玻璃板表面附近的鈉缺乏部移動的效果。其結果，使玻璃板中的鈉離子的存在量穩定化，抑制***紙中或空氣中的水蒸氣的氫離子與鈉離子的離子交換反應。依此，推測玻璃板中的氫離子的存在量不增加，降低燒蝕發生。However, when there is a large amount of sodium in the inserted paper, it has the effect of suppressing the sodium ions in the glass plate from leaching (moving) into the inserted paper. Furthermore, it also has the effect that the sodium ions inserted in the paper move to the sodium-deficient portion near the surface of the glass plate via the protective film for preventing defects formed of sulfate. As a result, the amount of sodium ions present in the glass plate is stabilized, and the ion exchange reaction between the hydrogen ions of the water vapor inserted in the paper or the air and the sodium ions is suppressed. Based on this, it is speculated that the amount of hydrogen ions present in the glass plate does not increase, reducing the occurrence of ablation.
作為用於將***紙中的鈉含量抑制在0.03～1.0質量%的方法為：在化學紙漿的製造步驟以及抄紙步驟的至少1個步驟，使用含有鈉的水（第1方法），與在化學紙漿的製造步驟、抄紙步驟以及抄紙後的步驟的至少1個步驟，添加含有鈉的化合物的方法（第2方法）。As a method for suppressing the sodium content in the inserted paper to 0.03 to 1.0% by mass, at least one step of the chemical pulp manufacturing step and the papermaking step is to use sodium-containing water (the first method) and the chemical A method of adding a sodium-containing compound to at least one of the pulp production step, the papermaking step, and the step after the papermaking (second method).
第1方法藉由適當控制化學紙漿的製造步驟以及抄紙步驟的至少1個步驟所使用的用水中的鈉含量，能夠調整最終所得的***紙中的鈉含量。納為一般於水中所含的成分。所謂的軟水相對的鈉含量少，硬水相對的鈉含量多。作為含有鈉的水的硬度，較佳為70～500（mg/l），更佳為120～400（mg/l）。而且，水的導電率較佳為14～100mS/m，更佳為24～33mS/m。含有鈉的水可用於化學紙漿的製造步驟以及抄紙步驟的兩者，亦可用於其中之一的步驟。化學紙漿的製造步驟或是抄紙步驟所使用的用水中溶解有鈉的話，化學紙漿其內部含有的羧基與金屬離子形成鹽，能夠將鈉保持於內部。而且，由於紙是將濕紙乾燥而製造，能夠保持用水中的一定量的鈉。In the first method, by appropriately controlling the sodium content in the water used in at least one step of the chemical pulp production step and the papermaking step, the sodium content in the finally obtained insert paper can be adjusted. Nano is a component generally contained in water. So-called soft water has a relatively low sodium content, and hard water has a relatively large sodium content. The hardness of the sodium-containing water is preferably 70 to 500 (mg/l), and more preferably 120 to 400 (mg/l). Moreover, the conductivity of water is preferably 14 to 100 mS/m, and more preferably 24 to 33 mS/m. The water containing sodium can be used for both chemical pulp manufacturing steps and papermaking steps, and can also be used for one of the steps. When sodium is dissolved in the water used in the manufacturing process of the chemical pulp or the papermaking process, the carboxyl group contained in the chemical pulp forms a salt with the metal ion, and the sodium can be kept inside. Moreover, since the paper is manufactured by drying wet paper, a certain amount of sodium in water can be maintained.
作為第2方法，為：在化學紙漿的製造步驟以及抄紙步驟的至少1個步驟添加於原料中含有鈉的化合物的方法（內添法），在化學紙漿的製造步驟以及抄紙步驟的至少1個步驟使用溶解、分散有含有鈉的化合物的水的方法（用水法），於抄紙後的步驟將溶解、分散有含有鈉的化合物的水溶液塗佈至***紙的表面的方法（塗佈法）等。此些之中，較佳為能夠更有效率的使鈉含有的塗佈法。The second method is a method of adding a compound containing sodium to the raw material in at least one of the chemical pulp production step and the papermaking step (internal addition method), and at least one chemical chemical production step and the papermaking step Step: A method using water in which a compound containing sodium is dissolved and dispersed (aqueous method), and a method in which an aqueous solution in which a compound containing sodium is dissolved and dispersed is applied to the surface of the inserted paper in the step after papermaking (coating method), etc. . Among these, a coating method capable of containing sodium more efficiently is preferable.
（硫酸鈉） 第2方法中，作為含有鈉的化合物，較佳為硫酸鈉（芒硝、Na2 SO4 ）。硫酸鈉具有作為玻璃的原料使用的情形。(Sodium sulfate) In the second method, the sodium-containing compound is preferably sodium sulfate (Glauber's salt, Na 2 SO 4 ). Sodium sulfate may be used as a raw material for glass.
作為對***紙的硫酸鈉添加量，較佳0.03～1.5質量%，更佳為0.05～1.0質量%，再更佳為0.1～0.6質量%。硫酸鈉的添加量如超過1.5質量%，具有產生硫酸鈉粒子析出至玻璃板的表面的不佳情形之疑慮。The amount of sodium sulfate added to the insertion paper is preferably 0.03 to 1.5% by mass, more preferably 0.05 to 1.0% by mass, and even more preferably 0.1 to 0.6% by mass. If the amount of sodium sulfate added exceeds 1.5% by mass, there is a concern that sodium sulfate particles may precipitate on the surface of the glass plate.
如同上述說明，藉由規定化學紙漿中所佔的闊葉樹紙漿的比例與***紙中的鈉含量，能夠降低玻璃板中的燒蝕發生。As described above, by specifying the proportion of hardwood pulp in chemical pulp and the sodium content in the inserted paper, the occurrence of ablation in the glass plate can be reduced.
（抄紙用藥品） 關於在***紙的抄紙時所使用的抄紙用藥品，在不污染玻璃表面的範圍內，能夠使用公知的各種藥品。作為抄紙用藥品，例如舉出聚丙烯醯胺等紙張強度增強劑、聚醯胺多胺環氧氯丙烷等耐水化劑、柔軟劑、抗靜電劑、消泡劑、黏泥控制劑、填料、染料等。因為這些抄紙用藥品任一皆有汙染玻璃板之疑慮，因此即使添加時，總量較佳為0.1質量%以下。(Drug for paper making) Regarding the papermaking chemicals used in papermaking for inserting paper, various known medicines can be used as long as they do not contaminate the glass surface. Examples of papermaking chemicals include paper strength enhancers such as polypropylene amide, water-resistant agents such as polyamine polyamine epichlorohydrin, softeners, antistatic agents, defoamers, slime control agents, fillers, Dyes, etc. Since any of these papermaking medicines may cause contamination of the glass plate, even when added, the total amount is preferably 0.1% by mass or less.
（玻璃***紙的製造方法） ***紙的製造方法並無特別限制，可使用各種抄紙機，選擇適當的造紙條件進行造紙。抄紙機具體來說可列舉長網成形器、雙網成形器、圓網成形器、傾斜成形器等。***紙的層結構可為單層或亦可為多層。作為用以將***紙中的鈉含量控制為0.03～1.0質量%的方法，可使用前述的第1方法或第2方法。(Manufacturing method of glass insert paper) The manufacturing method of the insertion paper is not particularly limited, and various papermaking machines can be used to select appropriate papermaking conditions for papermaking. Specific examples of the papermaking machine include a long wire former, a double wire former, a round wire former, and an inclined former. The layer structure of the inserted paper may be a single layer or multiple layers. As a method for controlling the sodium content in the inserted paper to 0.03 to 1.0% by mass, the aforementioned first method or second method can be used.
（玻璃***紙的特性） ***紙的基重，較小者因為在搬運時質量小而為較佳，但過小時，無法提供玻璃板充足的緩衝性。另一方面，雖然***紙的基重大至某程度者以緩衝性而言為較佳，但過大時，搬運時的質量增加而較不佳。在緩衝性與搬運容易性的平衡、用途考量下，***紙的基重為10～300g/m2 。而且，***紙的較佳基重為30～80g/m2 。(Characteristics of glass insert paper) The basis weight of insert paper is smaller, which is better because of its lower mass during transportation, but if it is too small, it cannot provide sufficient cushioning of the glass plate. On the other hand, although the basis weight of the inserted paper is better to a certain extent in terms of cushioning properties, when it is too large, the quality at the time of transportation increases and is not good. In consideration of the balance between cushioning properties and ease of transportation, and application considerations, the basis weight of the inserted paper is 10 to 300 g/m 2 . Furthermore, the preferred basis weight of the inserted paper is 30 to 80 g/m 2 .
由緩衝性、操作性的觀點來看，***紙的厚度較佳為25～250μm。而且，***紙的密度較佳為0.4～1.2g/cm3 。From the viewpoint of cushioning properties and operability, the thickness of the inserted paper is preferably 25 to 250 μm. Moreover, the density of the inserted paper is preferably 0.4 to 1.2 g/cm 3 .
***紙的pH（JIS P 8133-2）較佳為中性。The pH of the inserted paper (JIS P 8133-2) is preferably neutral.
本實施型態的***紙適合使用於將玻璃基板複數枚積層、保管、搬運之際，用於保護玻璃基板，所述玻璃基板為稱做觸控面板用玻璃基板、液晶顯示器、有機電致發光顯示器、電漿顯示器之平板顯示器用的玻璃基板。 [實施例]The insertion paper of this embodiment is suitable for stacking, storing, and transporting a plurality of glass substrates, and is used to protect the glass substrates, which are called glass substrates for touch panels, liquid crystal displays, and organic electroluminescence. Glass substrates for flat panel displays of displays and plasma displays. [Example]
以下，以實施例詳細說明本發明，但本發明不受此等所限定。此外，所示的配合數值是固體成分或有效成分的質量基準的數值（質量%）。另外，若無特別記載時，所製造的紙是根據JIS P8111進行處理後，用於進行測定及評價試驗。Hereinafter, the present invention will be described in detail with examples, but the present invention is not limited to these. In addition, the compounding value shown is a mass-based value (mass %) of a solid component or an active component. In addition, unless otherwise specified, the manufactured paper is treated in accordance with JIS P8111 and used for measurement and evaluation tests.
（實施例1～4、比較例1～2） 實施例以及比較例所使用的材料如同下述。 闊葉樹漂白牛皮紙漿（LBKP）：市售的闊葉樹漂白牛皮紙漿 針葉樹漂白牛皮紙漿（NBKP）：市售的針葉樹漂白牛皮紙漿 硫酸鈉：東楚股份有限公司製，無水中性硫酸鈉(Examples 1-4, Comparative Examples 1-2) The materials used in Examples and Comparative Examples are as follows. Hardwood bleached kraft pulp (LBKP): commercially available hardwood bleached kraft pulp Conifer bleached kraft pulp (NBKP): Commercially available bleached kraft pulp Sodium sulfate: made by Dongchu Co., Ltd., anhydrous sodium sulfate
用水的導電率的測定，根據JISK0130：2008，使用HORIBA公司製可攜型導電率計ES-51測定。The measurement of the conductivity of water was measured using a portable conductivity meter ES-51 manufactured by HORIBA in accordance with JISK0130:2008.
[實施例1] 使用市售LBKP（闊葉樹漂白牛皮紙漿）80%、市售NBKP（針葉樹漂白牛皮紙漿）20%的紙漿漿料（打漿度450 mlcsf）作為原料紙漿，使用導電率25mS/m的用水，不添加抄紙藥品，以長網抄紙機進行抄紙。抄紙後經乾燥，獲得基重40g/m2 的玻璃***紙。所得的玻璃***紙的鈉含量為0.05%。[Example 1] Using 80% of commercially available LBKP (broadleaved bleached kraft pulp) and 20% of commercially available NBKP (coniferous bleached kraft pulp) as raw material pulp, using a conductivity of 25mS/m Use water, do not add paper-making chemicals, use a long-web paper machine to make paper. After papermaking, it was dried to obtain glass insert paper with a basis weight of 40 g/m 2 . The sodium content of the obtained glass insert paper was 0.05%.
[實施例2] 除了使用導電率3mS/m的用水，並以對***紙的硫酸鈉添加量成為0.3%的方式以施膠機塗佈硫酸鈉溶液之外，與實施例1相同的得到玻璃***紙。所得的玻璃***紙的鈉含量為0.10%。[Example 2] A glass insert paper was obtained in the same manner as in Example 1, except that water with a conductivity of 3 mS/m was used and the sodium sulfate solution was applied to the sizing machine so that the sodium sulfate addition amount to the insert paper became 0.3%. The sodium content of the obtained glass insert paper was 0.10%.
[實施例3] 除了使對***紙的硫酸鈉添加量成為0.5%之外，與實施例2相同的得到玻璃***紙。所得的玻璃***紙的鈉含量為0.18%。[Example 3] A glass insert paper was obtained in the same manner as in Example 2 except that the amount of sodium sulfate added to the insert paper was 0.5%. The sodium content of the resulting glass insert paper was 0.18%.
[實施例4] 除了使用市售LBKP（闊葉樹漂白牛皮紙漿）40%、市售NBKP（針葉樹漂白牛皮紙漿）60%的紙漿漿料（打漿度450mlcsf）作為原料紙漿之外，與實施例3相同的得到***紙。所得的玻璃***紙的鈉含量為0.18%。[Example 4] An insert paper was obtained in the same manner as in Example 3, except that 40% of commercially available LBKP (broadleaved bleached kraft pulp) and 60% of commercially available NBKP (coniferous bleached kraft pulp) were used as raw material pulps (beating degree 450 mlcsf). The sodium content of the resulting glass insert paper was 0.18%.
[比較例1] 除了未添加硫酸鈉之外，與實施例2相同的得到玻璃***紙。所得的玻璃***紙的鈉含量為0.01%。[Comparative Example 1] Except that sodium sulfate was not added, glass insertion paper was obtained in the same manner as in Example 2. The sodium content of the obtained glass insert paper was 0.01%.
[比較例2] 除了使用市售NBKP（針葉樹漂白牛皮紙漿）100%的紙漿漿料（打漿度450mlcsf）作為原料紙漿之外，與實施例3相同的得到玻璃***紙。所得的玻璃***紙的鈉含量為0.18%。[Comparative Example 2] A glass insert paper was obtained in the same manner as in Example 3, except that commercially available NBKP (Conifer Bleached Kraft Pulp) 100% pulp slurry (beating degree 450 mlcsf) was used as the raw material pulp. The sodium content of the resulting glass insert paper was 0.18%.
（評價內容） 所得的玻璃***紙的評價內容如同下述。 〈***紙中的鈉含量〉 玻璃***紙的灰分根據JIS P8251求取。所得的灰分中的鈉含量（質量%），使用螢光X光分析裝置（日本電子股份有限公司製，JSX-3600M）由質量濃度的測定值獲得。玻璃***紙中的鈉含量m（質量%）由下述式（1）求得。 m＝a×b…（1） 此處，m：鈉含量（質量%） a：玻璃***紙的灰分（質量%） b：灰分中的鈉含量（質量%）(comment content) The evaluation contents of the obtained glass insertion paper are as follows. <Sodium content in inserted paper> The ash content of the glass insertion paper is determined according to JIS P8251. The sodium content (mass%) in the obtained ash is obtained from the measured value of the mass concentration using a fluorescent X-ray analyzer (manufactured by JEOL Ltd., JSX-3600M). The sodium content m (mass %) in the glass insert paper is determined by the following formula (1). m=a×b... (1) Here, m: sodium content (mass %) a: Ash content of glass insertion paper (mass %) b: Sodium content in ash (mass %)
〈玻璃板的燒蝕的評價〉 於210mm×210mm的玻璃***紙載置200mm×200mm的觸控面板用玻璃板，將其組合交互積層3組，於其上載置1kg的鉛錘並賦予壓力，於溫度50℃、濕度90%RH的環境下靜置4天並作為試料。水洗玻璃板的表面並乾燥後，於暗室以高亮度燈照射並觀察玻璃板表面的白濁（n＝3）。玻璃板的燒蝕的評價以下述的基準進行。若為A則判定為合格。 A：沒有模糊不清 B：部分模糊不清 C：模糊不清<Evaluation of ablation of glass plate> Insert a glass plate for a touch panel of 200mm×200mm into a glass of 210mm×210mm and place it on a 200mm×200mm touch panel. Combine it into three layers. Lay a 1kg lead hammer on it and apply pressure to it at a temperature of 50℃ and humidity of 90%RH. It was allowed to stand for 4 days under the environment and used as a sample. After the surface of the glass plate was washed with water and dried, it was irradiated with a high-brightness lamp in a dark room and the white turbidity of the glass plate surface was observed (n=3). The evaluation of the ablation of the glass plate was performed according to the following criteria. If it is A, it is judged as passing. A: No blur B: Partly ambiguous C: Unclear
表1
於表1表示實施例1～4以及比較例1～2的評價結果。實施例1～4的玻璃***紙對於玻璃板的燒蝕優良。另一方面，比較例1～2的玻璃***紙對於玻璃板的燒蝕低劣。Table 1 shows the evaluation results of Examples 1 to 4 and Comparative Examples 1 to 2. The glass insertion papers of Examples 1 to 4 are excellent in ablation of glass plates. On the other hand, the glass insertion papers of Comparative Examples 1 to 2 are inferior to the ablation of the glass plate.
無。no.
無。no.
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018160319A JP7010175B2 (en) | 2018-08-29 | 2018-08-29 | Glass interleaving paper and its manufacturing method |
| JP2018-160319 | 2018-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW202014578A true TW202014578A (en) | 2020-04-16 |
| TWI741353B TWI741353B (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW108130593A TWI741353B (en) | 2018-08-29 | 2019-08-27 | Glass insert paper and its manufacturing method |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3845705B1 (en) |
| JP (1) | JP7010175B2 (en) |
| CN (1) | CN112601861B (en) |
| TW (1) | TWI741353B (en) |
| WO (1) | WO2020045380A1 (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06316432A (en) * | 1993-05-06 | 1994-11-15 | Asahi Glass Co Ltd | Laminated paper for glass |
| JPH0741034A (en) | 1993-08-04 | 1995-02-10 | Asahi Glass Co Ltd | Slip sheet for glass plate |
| JPH07101483A (en) * | 1993-10-01 | 1995-04-18 | Asahi Glass Co Ltd | Guard sheet for plate glass |
| CN102277785A (en) * | 2011-08-24 | 2011-12-14 | 陕西科技大学 | Method for producing external bag paper of apple cultivating bag by coating process |
| JP2013212939A (en) * | 2012-03-30 | 2013-10-17 | Avanstrate Inc | Glass plate laminate and method for producing glass plate |
| JP2014095163A (en) * | 2012-11-08 | 2014-05-22 | Oji Holdings Corp | Antistatic glass joined paper |
| JP6171327B2 (en) * | 2012-12-19 | 2017-08-02 | 旭硝子株式会社 | Glass interleaving paper and glass plate packaging |
| CA2889225C (en) * | 2012-12-27 | 2016-08-16 | Yasuhiko Asai | Wood pulp for glass plate-interleaving paper and glass plate-interleaving paper |
| JP2014145138A (en) * | 2013-01-28 | 2014-08-14 | Daio Paper Corp | Glass slip sheet and laminate |
| WO2015090721A1 (en) | 2013-12-18 | 2015-06-25 | Asml Netherlands B.V. | Inspection method and apparatus, and lithographic apparatus |
| CN105586802B (en) * | 2016-02-19 | 2017-06-20 | 岳阳林纸股份有限公司 | A kind of manufacture method of the rich body paper of product |
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2018
- 2018-08-29 JP JP2018160319A patent/JP7010175B2/en active Active
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2019
- 2019-08-27 WO PCT/JP2019/033410 patent/WO2020045380A1/en unknown
- 2019-08-27 EP EP19855412.3A patent/EP3845705B1/en active Active
- 2019-08-27 TW TW108130593A patent/TWI741353B/en active
- 2019-08-27 CN CN201980055178.7A patent/CN112601861B/en active Active
Also Published As
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|---|---|
| CN112601861A (en) | 2021-04-02 |
| EP3845705A4 (en) | 2022-05-04 |
| CN112601861B (en) | 2023-09-12 |
| EP3845705B1 (en) | 2023-05-03 |
| TWI741353B (en) | 2021-10-01 |
| WO2020045380A1 (en) | 2020-03-05 |
| JP7010175B2 (en) | 2022-01-26 |
| JP2020033666A (en) | 2020-03-05 |
| EP3845705A1 (en) | 2021-07-07 |
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