TWI621512B - Method for manufacturing grass and wood fiber board - Google Patents
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Abstract
一種禾、木纖維板材之製造方法，尤指以禾本植物、木本植物為原料，以乾式製程方式進行一纖維板材的製造，其製造方法包括有：先取得一禾本植物或是木本植物纖維原料；將纖維原料進行一初步烘乾；將完成初步烘乾之纖維原料進行一攪拌程序，其中添加第一、二添加劑(如：氧化鎂、硫酸鎂)，將第一、二添加劑與纖維原料相混合會產生放熱反應，使得第一、二添加劑可與纖維原料所含的水分形成反應，以構成一纖維原料半成品；再將纖維原料半成品進行後段製板製程，以完成一具有防火、無甲醛與尿素劑之纖維板材；達到纖維板材製程過程中，不需添加危害人體健康之甲醛與尿素劑；同時透過乾式製程方式，避免製程過程中額外會產生廢水汙染之問題。 The invention relates to a method for manufacturing a wood fiber board, in particular to a grass board and a woody plant as a raw material, and a fiber board is manufactured by a dry process, and the manufacturing method comprises the following steps: first obtaining a grass plant or a woody board; Plant fiber raw material; preliminary drying of the fiber raw material; performing a stirring process for the preliminary drying of the fiber raw material, wherein the first and second additives (such as magnesium oxide, magnesium sulfate) are added, and the first and second additives are combined with The mixing of the fiber raw materials generates an exothermic reaction, so that the first and second additives can react with the moisture contained in the fiber raw materials to form a fiber raw material semi-finished product; and the fiber raw material semi-finished product is subjected to a post-stage plate making process to complete a fireproofing process. The fiber board without formaldehyde and urea agent; in the process of fiber board process, formaldehyde and urea agent which are harmful to human health need not be added; at the same time, the dry process method is adopted to avoid the problem of additional waste water pollution during the process.
Description
本發明係有關一種禾、木纖維板材之製造方法，特別是指於以一年生之禾本植物或多年生之木本植物，為其原料，施以一攪拌程序中添加一第一添加劑(氧化鎂；MgO)及一第二添加劑(硫酸鎂；MgSO4.7H2O)，藉以取代甲醛與尿素劑，利用第一添加劑、第二添加劑與該纖維原料相混合時，會產生放熱反應，令纖維原料中之纖維細胞內之水分可被溢出，使得第一添加劑、第二添加劑可與纖維原料與所溢出的水，進行反應形成8Mg(OH)2+MgSO4，俾讓纖維原料構成一纖維原料半成品，再進行後段製板製程，以完成一無甲醛與尿素劑之防火纖維板材，達到所完成之纖維板材除具防火特性外，更不具有危害人體健康之甲醛物質；同時，再以乾式製程方式進行纖維板材的製造，避免製程過程中額外產生污染性之廢水問題。 The invention relates to a method for manufacturing a straw and wood fiber board, in particular to adding a first additive (magnesium oxide) to a raw grass or a perennial woody plant as a raw material thereof by applying a stirring procedure; MgO) and a second additive (magnesium sulfate; MgSO 4 .7H 2 O), in place of formaldehyde and urea, and when the first additive and the second additive are mixed with the fiber raw material, an exothermic reaction is generated, and the fiber raw material is produced. The water in the fiber cells can be overflowed, so that the first additive and the second additive can react with the fiber raw material and the overflowed water to form 8Mg(OH) 2 + MgSO 4 , and the fiber raw material constitutes a fiber raw material semi-finished product. Then, the post-stage plate making process is completed to complete a fire-retardant fiber sheet without formaldehyde and urea agent, and the finished fiber sheet has no fire-proof property, and has no formaldehyde substance harmful to human health; at the same time, a dry process method is adopted. The manufacture of fiberboard is carried out to avoid the problem of additional polluted wastewater in the process.
人類使用木製品已有數千年的歷史，凡舉蓋屋、造橋都脫離不了木頭使用；近百年來由於人口急遽膨脹，各種原物料需求與使用量大漸而日益枯乏，最具代表性的就是雨林生態與樹木間之關係與所衍生之環境問題，除直接衝擊環境與氣候，更使得已被砍筏之樹木難以逆向復原， 在木製原料需求不變，所能供應的木製原物料大幅減少之下，需求大於供給必然價格大增，所隨的變革必須轉向於可替代之木製原料，方為解決之道；因此，以短年生之禾本植物或是可為取得之木本植物纖維做為替代，則是本案所需討論之主要課題。 Humans have used wood products for thousands of years. All the houses and bridges can not be used without wood. In the past 100 years, due to the rapid expansion of the population, the demand and use of various raw materials have become increasingly scarce. The most representative is The relationship between the rainforest ecology and the trees and the environmental problems derived from it, in addition to directly impacting the environment and climate, make it difficult for the trees that have been cut down to recover backwards. Under the constant demand for wooden raw materials, the supply of wood raw materials can be greatly reduced, the demand is greater than the inevitable price increase of supply, and the changes must be transferred to alternative wooden raw materials, so as to solve the problem; The annual grass plant or the wood fiber that can be obtained is the main subject of discussion in this case.
因此，利用本案之發明工藝，不但可以突破禾本植物纖維轉化成為製板板材；同時，對於現階段之木本植物纖維，亦可進行全新板材之製作方法，以突破變革成為全新之防火級、無毒性之板材製作工藝者。 Therefore, by using the invention process of the present invention, it is possible to break through the conversion of the grass plant fiber into a plate material; at the same time, for the woody plant fiber at the present stage, a new plate making method can also be carried out, and the new fireproof level can be broken through the change. Non-toxic sheet making process.
按，以木製品所含具之甲醛，已被公認為是令人煩惱的室內污染源，它對於絕大多數生命來講都是含有劇毒的。 According to the formaldehyde contained in wood products, it has been recognized as an annoying indoor pollution source, which is highly toxic for most life.
然，木製裝潢與木製家具所用之板材，或多或少都含有甲醛物質，長久以來，甲醛物質潛伏危害在大多數家庭中，而甲醛離子游離性之汙染，可長達15年之久，主要來源均指向於中密度纖維板或是合成樹脂產品；然而，尿素甲醛泡沫塑料絕緣材料以及很多同類家具(實木及軟木)，它們都包含了尿素及甲醛；持續或者過量的接觸甲醛，其結果就是危害人體健康，刺激性的過敏，包括：眼球黏膜與鼻黏膜感染、上呼吸道黏膜的疼痛、皮膚刺痛及皮疹、慢性頭疼；失眠、易怒、偏執、消沉、喪失方向感、情緒化；胸悶及心臟問題；呼吸問題；也可能誘發癌症及其他慢性或長期的病症…等。 However, the wood panels and the wooden panels used in the wood, more or less contain formaldehyde substances, formaldehyde has long been a potential hazard in most households, and formaldehyde ion free pollution can be as long as 15 years, mainly Sources are directed to medium density fiberboard or synthetic resin products; however, urea formaldehyde foam insulation and many similar furniture (solid wood and cork), they contain urea and formaldehyde; continuous or excessive exposure to formaldehyde, the result is harm Human health, irritating allergies, including: eyeball mucosa and nasal mucosa infection, upper respiratory tract mucosal pain, skin irritation and rash, chronic headache; insomnia, irritability, paranoia, depression, loss of direction, emotional; chest tightness and Heart problems; breathing problems; may also induce cancer and other chronic or chronic conditions...etc.
目前業者為了降低一般纖維板所含甲醛與其釋放量，現今纖維板的製程中，乃添加脲醛樹脂的化學物，利用脲醛樹脂的化學組成、形態結構及其基本性質，祈以降低甲醛離子釋放量，而板材生產中主要使用低摩爾比的純脲醛樹脂，採用鹼一弱酸一弱鹼的製膠工藝，甲醛一般一次 加入，尿素一般採用3次或4次加入。 In order to reduce the amount of formaldehyde and its release in general fiberboard, the current industry is adding chemicals such as urea-formaldehyde resin, using the chemical composition, morphological structure and basic properties of urea-formaldehyde resin to reduce the release of formaldehyde ions. In the production of sheet metal, the pure urea-formaldehyde resin with low molar ratio is mainly used, and the alkali-weak acid-weak alkali gel-making process is used. When added, urea is generally added in 3 or 4 additions.
這種純脲醛樹脂游離甲醛含量較低，小分子物質含量較多，分子量分佈較寬，固化期較長，膠接性能較差，耐水性特別差，耐熱水性更差，完全不具防火等級；因此一般還會再添加一定量的三聚氰胺進行改性，提高樹脂的耐水性和膠接強度，降低板材的吸水厚度與膨脹率。 The pure urea-formaldehyde resin has low free formaldehyde content, large content of small molecular substances, wide molecular weight distribution, long curing period, poor bonding performance, poor water resistance, poor hot water resistance, and no fire rating at all; A certain amount of melamine is further modified to improve the water resistance and bonding strength of the resin, and to reduce the water absorption thickness and expansion ratio of the sheet.
然而，不論是何種製板工藝，都會游離出甲醛離子，因此根本無法有效杜絕甲醛汙染性。 However, no matter what kind of plate making process, formaldehyde ions are released, so it is impossible to effectively prevent formaldehyde pollution.
此外，習知纖維板之製程方式，有以濕式工法進行製造，即纖維板之原料，須以100%水分來進行浸泡，再與尿素及甲醛進行混合攪拌，此種傳統製板工藝，因水分浸泡必然造成後續製程，需要耗費更多的熱能來實施纖維板原料烘乾與燥化處理，導致製板工藝徒需耗費較多的能源，同時製程過程中，纖維板原料與尿素及甲醛浸泡後的水，即成為有毒的廢水；如此一來，必然徒耗水源進而衍生廢水處理問題。 In addition, the process of the conventional fiberboard is manufactured by a wet process, that is, the raw material of the fiberboard is soaked with 100% moisture, and then mixed with urea and formaldehyde. This traditional plate making process is soaked by water. It will inevitably lead to the subsequent process, and it will take more heat to implement the drying and drying treatment of the fiberboard raw materials, which will result in more energy consumption for the plate making process. At the same time, the fiberboard raw materials and the urea and formaldehyde soaked water will be used in the process. That is to become a toxic waste water; as a result, it is inevitable to consume water sources and then to derive wastewater treatment problems.
為了解決上述習知技術的問題與缺陷，本發明揭露一種禾、木纖維板材之製造方法，尤指以乾式製程方式進行一纖維板材的製造，其製造方法包括有：先取得一纖維原料(禾本植物纖維或木本植物纖維)；將該纖維原料進行一初步烘乾；再將完成初步烘乾之纖維原料進行一攪拌程序，其中添加第一添加劑(氧化鎂；MgO)及第二添加劑(硫酸鎂；MgSO4.7H2O)，將第一添加劑、第二添加劑與纖維原料相混合時，會因放微性熱反應產 生微性秀熱能，此時該纖維原料其纖維細胞內之水分會被溢出，使得第一添加劑、第二添加劑可與纖維原料所溢出的水，進行反應形成為8Mg(OH)2+MgSO4，俾讓纖維原料形成一纖維原料半成品；再將已完成攪拌程序之纖維原料半成品，依序進行一鋪裝程序、一熱壓程序、一晾板程序、一裁切程序、一推疊養生程序及一砂光程序，以完成一無添加甲醛與尿素劑之纖維板材。 In order to solve the problems and deficiencies of the above-mentioned prior art, the present invention discloses a method for manufacturing a wood fiber board, in particular, a method for manufacturing a fiber board by a dry process, and the manufacturing method thereof comprises: first obtaining a fiber material ( The plant fiber or the woody plant fiber); the fiber raw material is subjected to a preliminary drying; and the preliminary drying of the fiber raw material is subjected to a stirring process, wherein the first additive (magnesium oxide; MgO) and the second additive are added Magnesium sulfate; MgSO 4 .7H 2 O), when the first additive and the second additive are mixed with the fiber raw material, micro-heating energy is generated by the micro-thermal reaction, and the fiber raw material has moisture in the fiber cell. Will be overflowed, so that the first additive and the second additive can react with the water overflowed by the fiber raw material to form 8Mg(OH) 2 + MgSO 4 , and the fiber raw material is formed into a fiber raw material semi-finished product; The semi-finished product of the fiber raw material is sequentially subjected to a paving process, a hot pressing process, a drying board process, a cutting process, a push-up health program and a sanding process to complete No added urea formaldehyde fiber board of the agent.
本發明之技術特徵在於：以禾本植物纖維或木本植物纖維為原料，該等纖維板材製程之攪拌程序中，使用第一添加劑(氧化鎂；MgO)及第二添加劑(硫酸鎂；MgSO4.7H2O)，藉以取代甲醛與尿素劑，利用第一添加劑、第二添加劑與纖維原料相混合時，即會產生微性放熱反應，釋放出微性熱能，且纖維原料其纖維細胞內之水分亦會被可溢出(析出)，所溢出的水則可供第一添加劑、第二添加劑可與纖維原料，因與水而反應做用形成為8Mg(OH)2+MgSO4，該以水作為反應作用係為固化作用，而加熱溫度之實施，主要為加快其反應，俾讓纖維原料構成一纖維原料半成品，再進行後段製板製程，以完成一無添加甲醛與尿素劑之纖維板材，達到所完成之纖維板材除具有防火等級之外，亦完全不具有危害人體健康之甲醛物質。 The technical feature of the invention is that the grass plant fiber or the woody plant fiber is used as a raw material, and the first additive (magnesium oxide; MgO) and the second additive (magnesium sulfate; MgSO 4 are used in the stirring process of the fiber board process. .7H 2 O), in place of formaldehyde and urea, when the first additive and the second additive are mixed with the fiber raw material, a micro exothermic reaction is generated, and micro thermal energy is released, and the fiber raw material is in the fiber cell. The water can also be overflowed (precipitated), and the overflowed water can be used for the first additive, the second additive and the fiber raw material, and reacted with water to form 8Mg(OH) 2 + MgSO 4 , which is water. The reaction is a curing action, and the heating temperature is mainly carried out to accelerate the reaction, and the fiber raw material is formed into a fiber raw material semi-finished product, and then a post-stage plate making process is performed to complete a fiber sheet without adding formaldehyde and urea agent. In addition to the fire rating, the finished fiberboard does not have any formaldehyde substances that are harmful to human health.
此外，利用纖維原料其本身纖維細胞內之水分，用以與第一添加劑、第二添加劑進行反應，使得攪拌程序不需額外再添加水分進行攪拌，也不需將纖維原料以100%水分浸泡來進行攪拌程序，達到本發明能以乾式製程方式，進行纖維板材的製造，完全避免製程過程中額外會產生廢水之問題；同時，乾式製程方式不需耗費更多的熱能，進行烘乾與燥化處 理，進一步達到節約能源之功效。 In addition, the moisture in the fiber cells of the fiber raw material is utilized to react with the first additive and the second additive, so that the stirring process does not need to add additional water for stirring, and the fiber raw material is not soaked with 100% water. The stirring process is carried out to achieve the invention, and the production of the fiber sheet can be carried out in a dry process manner, completely avoiding the problem of additionally generating waste water during the process; at the same time, the dry process method does not require more heat energy, and is dried and dried. At To further improve energy efficiency.
1‧‧‧第一添加劑 1‧‧‧First Additive
2‧‧‧第二添加劑 2‧‧‧second additive
3‧‧‧纖維原料 3‧‧‧Fiber raw materials
4‧‧‧初步烘乾 4‧‧‧ preliminary drying
5‧‧‧攪拌程序 5‧‧‧ Mixing procedure
6‧‧‧鋪裝程序 6‧‧‧Pavement procedure
7‧‧‧熱壓程序 7‧‧‧Hot pressure program
8‧‧‧晾板程序 8‧‧‧Blank board program
9‧‧‧裁切程序 9‧‧‧ cutting procedure
10‧‧‧推疊養生程序 10‧‧‧Pushing health program
11‧‧‧砂光程序 11‧‧‧ Sanding procedure
12‧‧‧纖維板材 12‧‧‧Fiber sheet
第一圖：係本發明纖維板材之製造方法一流程圖。 First: A flow chart of a method for producing a fiber sheet of the present invention.
第二圖：係本發明纖維板材之製造方法一流程架構圖。 Second: It is a process architecture diagram of the manufacturing method of the fiber sheet of the present invention.
為使 貴審查員方便簡捷瞭解本發明之其他特徵內容與優點及其所達成之功效能夠更為顯現，茲將本發明配合附圖，詳細敘述本發明之特徵以及優點，以下之各實施例係進一步詳細說明本發明之觀點，但非以任何觀點限制本發明之範疇。 The features and advantages of the present invention will be described in detail in conjunction with the accompanying drawings. The present invention is further described in detail, but does not limit the scope of the invention in any way.
請參閱第一、二圖所示，本發明係揭露一種禾、本纖維板之製造方法，尤指以禾本植物纖維或木本植物纖維，以乾式製程方式進行一纖維板材的製造，本發明纖維板材之製造方法包括有： Referring to the first and second figures, the present invention discloses a method for manufacturing a fiberboard, especially a grass fiber or a woody plant fiber, which is manufactured by a dry process, and the fiber of the present invention. The manufacturing methods of the board include:
步驟100：取得一纖維原料3。所述之纖維原料3可以是禾本植物纖維、木本植物纖維或禾、木本混和性之植物纖維。 Step 100: Obtain a fiber raw material 3. The fiber raw material 3 may be a grass plant fiber, a woody plant fiber or a woody woody plant fiber.
步驟110：將纖維原料3進行一初步烘乾4。即利用烘乾機，將纖維原料3之水分控制在低於30%；或者，當纖維原料3其水分含量過少時，可加入低於30%的水，幫助其反應。 Step 110: Perform a preliminary drying of the fiber raw material 3. That is, the moisture of the fiber raw material 3 is controlled to be less than 30% by using a dryer; or, when the moisture content of the fiber raw material 3 is too small, less than 30% of water may be added to help the reaction.
步驟120：將已完成初步烘乾4之纖維原料3進行一攪拌程序5，於攪拌程序5過程中，添加一第一添加劑1及一第二添加劑2， 所述第一添加劑1可以是氧化鎂(MgO)，所述第二添加劑2可以是硫酸鎂(MgSO4.7H2O)，將第一添加劑1、第二添加劑2分別與纖維原料3相混合時，會產生微性放熱反應，釋出微性熱量，可令纖維原料3其纖維細胞內之水分被溢出，而第一添加劑1、第二添加劑2可與纖維原料3本身所溢出的水反應，此溢出的水反應主要是作為其固化作用，以形成為8Mg(OH)2+MgSO4；因此，第一添加劑1、第二添加劑2及纖維原料3(以及纖維內所含之水)相混合，以形成一纖維原料半成品。又，步驟120之中，所述第一添加劑1及第二添加劑2分別以各50%含量與纖維原料3進行攪拌，其攪拌方式可利用機械進行高速混合攪拌，使得第一添加劑1、第二添加劑2可與纖維原料3充分混和。 Step 120: Perform a stirring process 5 of the fiber raw material 3 that has completed the preliminary drying 4, and add a first additive 1 and a second additive 2 during the stirring process 5, and the first additive 1 may be magnesium oxide. (MgO), the second additive 2 may be magnesium sulfate (MgSO 4 .7H 2 O), and when the first additive 1 and the second additive 2 are respectively mixed with the fiber raw material 3, a micro exothermic reaction is generated, and the release is performed. The slight heat is generated, so that the moisture in the fiber cells of the fiber raw material 3 is overflowed, and the first additive 1 and the second additive 2 can react with the water overflowed by the fiber raw material 3 itself, and the overflowing water reaction is mainly as its The curing action is to form 8 Mg(OH) 2 + MgSO 4 ; therefore, the first additive 1, the second additive 2, and the fiber raw material 3 (and the water contained in the fiber) are mixed to form a fiber raw material semi-finished product. Moreover, in the step 120, the first additive 1 and the second additive 2 are respectively stirred with the fiber raw material 3 at a content of 50%, and the stirring method can be performed by high-speed mixing and stirring by using a machine, so that the first additive 1 and the second additive The additive 2 can be sufficiently mixed with the fiber raw material 3.
步驟130：將已完成攪拌程序5之纖維原料半成品，再依序進行一鋪裝程序6、一熱壓程序7、一晾板程序8、一裁切程序9、一推疊養生程序10及一砂光程序11，以完成一無添加甲醛與尿素劑之纖維板材12。所述熱壓程序7之中，以最大壓力40kgs/cm2及溫度200℃之設定，對纖維原料半成品進行熱壓；需補充說明一點，所施予之熱壓目的，主要是以其熱量加快反應速度，而壓力實施則是強化其固化強度。 Step 130: The fiber raw material semi-finished product of the stirring process 5 is completed, and then a paving process 6, a hot pressing process 7, a drying board program 8, a cutting program 9, a push-up health program 10 and a Sanding procedure 11 to complete a fiber sheet 12 without added formaldehyde and urea. In the hot pressing procedure 7, the fiber raw material semi-finished product is hot-pressed at a maximum pressure of 40 kgs/cm 2 and a temperature of 200 ° C; it is necessary to add a point that the purpose of the hot pressing is mainly to accelerate the heat thereof. The reaction rate is increased while the pressure is applied to enhance the curing strength.
本發明之技術特徵在於，所述步驟120之攪拌程序5之中，添加所述第一添加劑1及第二添加劑2與纖維原料3進行攪拌混合，由於第一添加劑1及第二添加劑2為具防火特性，且藉以取代甲醛與尿素劑的使用，達到所完成之纖維板材12為具防火級外，亦不具有危害人體健康之甲醛貨甲醛混合物質。 The technical feature of the present invention is that, in the stirring procedure 5 of the step 120, the first additive 1 and the second additive 2 are added to the fiber raw material 3 for stirring and mixing, because the first additive 1 and the second additive 2 are The fireproof property, and in order to replace the use of formaldehyde and urea, to achieve the fireproof grade of the finished fiberboard 12, and does not have a formaldehyde-formaldehyde mixture which is harmful to human health.
此外，本發明之製程工法再以乾式製程方式進行纖維板材的 製造，即利用步驟110之中初步烘乾4時，可將纖維原料3之水分控制在低於30%，再透過步驟120之攪拌程序5之中，第一添加劑1、第二添加劑2與纖維原料3充分混和過程會產生微性放熱反應，而此放熱反應將會使得植物纖維細胞內之水分，透過細胞壁溢出，則可利用此植物纖維細胞內所含之水分做為所需之反應水分，以形成固化作用；因此，本發明以乾式製程方式進行纖維板材12的製造，即與傳統濕式工藝不同，完全不需將纖維原料3以100%水分浸泡來進行攪拌程序，達到本發明能以乾式製程方式進行纖維板材12的製造，避免製程過程中額外會產生廢水之問題，同時乾式製程方式不需耗費更多的熱能進行烘乾與燥化處理，所以不會產生高耗能量之烘乾問題，進一步達到節約能源功效，使得後續製板程序更為省時，且加大產能與效率，大幅降低製板成本。 In addition, the process method of the present invention performs the fiber sheet in a dry process. Manufacture, that is, when preliminary drying 4 is used in step 110, the moisture of the fiber raw material 3 can be controlled to be less than 30%, and then passed through the stirring process 5 of the step 120, the first additive 1, the second additive 2 and the fiber. When the raw material 3 is fully mixed, a micro exothermic reaction will occur, and the exothermic reaction will cause the water in the plant fiber cells to overflow through the cell wall, and the moisture contained in the plant fiber cells can be used as the desired reaction water. To form a curing action; therefore, the present invention performs the production of the fiber sheet 12 in a dry process, that is, unlike the conventional wet process, the fiber raw material 3 is not required to be soaked in 100% water for the stirring process, so that the present invention can The dry process method is used to manufacture the fiber sheet 12 to avoid the problem of additional waste water during the process, and the dry process method does not require more heat to be dried and dried, so it does not produce high energy consumption drying. The problem is to further achieve energy-saving effects, making the subsequent board making process more time-saving, increasing production capacity and efficiency, and significantly reducing the cost of board making.
本發明試舉一實施例，當以禾本植物纖維作為板材原料時，則可將禾本植物纖維直接作為纖維原料3，再依照所述之步驟110、步驟120及步驟130之程序進行製作，以完成一無添加甲醛與尿素劑之防火級纖維板材12。 In an embodiment of the present invention, when the plant fiber is used as the material of the plate material, the grass fiber can be directly used as the fiber material 3, and then processed according to the procedures of step 110, step 120 and step 130 described above. To complete a fireproof grade fiber sheet 12 without adding formaldehyde and urea.
本發明試舉另一實施例，當以木本植物纖維作為板材原料時，可先將木本植物進行削片、蒸煮、分離纖維之程序以取得木本植物纖維，由木本植物纖維成為所述之纖維原料3，再依照所述之步驟110、步驟120及步驟130之程序進行製作，以完成一無添加甲醛與尿素劑之防火級纖維板材12。 According to another embodiment of the present invention, when the woody plant fiber is used as a raw material for the sheet material, the woody plant can be first subjected to a procedure of shaving, cooking, and separating the fiber to obtain the woody plant fiber, and the woody plant fiber becomes the The fiber raw material 3 is prepared according to the procedures of the steps 110, 120 and 130 described above to complete a fireproof grade fiber sheet 12 without adding formaldehyde and urea.
惟，上列詳細說明係針對本發明之一可行實施例之具體說明，該實施例並非用以限制本發明，而凡未脫離本發明技藝精神所為之等 效實施或變更，均應包含於本案之專利範圍中。 The detailed description above is a detailed description of a possible embodiment of the present invention, which is not intended to limit the invention, and is not to be The implementation or change shall be included in the patent scope of this case.
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