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采购数量不能为0Patent CN1037708C - Process for making highly finished kraft paper - Google PatentsCN1037708 CGrantCN Mar 11, 1998Aug 14, 1993Aug 14, 1993, CN 1037708 C, CN 1037708C, CN , CN-C-1037708, CN1037708 C, CN1037708C, CN, CN, , , , ,
(4) , Process for making highly finished kraft paper
CN 1037708 C 一种精制牛皮纸制造工艺，属于纸浆纤维漂白处理。 Producing a purified kraft paper manufacturing process, pulp fibers belonging to bleaching treatment. 其工艺是将符合本发明的落叶松依次经扒皮、削片、蒸煮、洗料及除渣工艺处理成的纸浆纤维，按重量将浆料∶次氯酸钙按100∶4的比例混合搅拌，漂液半小时，经浓缩后洗料成白度为19°-21°的纸浆再依次经打浆、上网、压榨、光压、烘干、压光制成精制牛皮纸。 The process is to comply with the present invention in order larch by Flayer, chipping, cooking, washing materials and slag treatment process into pulp fibers by weight slurry: calcium hypochlorite by mixing ratio 100:4 stirring drift was half an hour, after concentrated wash material into the whiteness of 19 ° -21 ° in the pulp and then followed by the beating, the Internet, the press, light pressure, drying, calendaring made of refined kraft paper. 制造工艺简单，原材料价廉、制成品的表面光洁度好，颜色浅黄、尘埃低、强度及紧度高，可作为各种档次商品的包装用纸。 Manufacturing process is simple, inexpensive surface materials, finished products, good finish, the color yellow, low dust, high strength and tight, as various grades of packaging paper goods.
1，一种精制牛皮纸制造工艺，包括依次由扒皮、削片、蒸煮、洗料及除渣组成的前序工艺，依次由打浆、上网、压榨、光压、烘干、压光、卷曲及复卷组成的后序工艺。 A refined kraft paper manufacturing process, including the pre-order process followed by Flayer, chipping, cooking, cleaning materials and slag composition, followed by the beating, the Internet, the press, light pressure, drying, calendaring, curl and rewinding After the order process composed. 本发明的特征在于将水份含量小于35％、冷水抽出物小于2.21％、热水抽出物小于1.9％、1％NaOH抽出物小于13.03％、木素含量小于27.44％的落叶松经由前序工艺处理成的卡伯价在45-53纸浆纤维，按重量将纤维：次氯酸钙按100∶4的比例混合搅拌，漂白20-30分钟，经浓缩后洗料成白度为19°-21°的纸浆，再经后序工艺处理制成精制牛皮纸。 Feature of the present invention is to a moisture content of less than 35%, less than 2.21% cold water extract, hot water extract of less than 1.9%, 1% NaOH extract less than 13.03%, the lignin content of less than 27.44% of the preamble of the process via Larch Processing in 45-53% of kappa pulp fibers, the fibers by weight: calcium hypochlorite in proportion 100:4 mixed and stirred, bleaching 20-30 minutes, after washing was concentrated to a white material was 19 ° -21 ° Pulp °, and then by subsequent treatment process into refined kraft paper.
精制牛皮纸制造工艺 Refined kraft paper manufacturing process
本发明提供了一种精制牛皮纸制造工艺，属于纸浆纤维漂白处理。 The present invention provides a refined kraft paper manufacturing process, pulp fibers belonging to bleaching treatment.
我国五十年代，由于木材资源较丰富，制造牛皮纸采用红白松，这种原料制造的牛皮纸质量好，但随着木材资源的减少，自六十年代开始采用落叶松生产牛皮纸，特别是我国北方纸厂多采用落叶松枝丫材配掺一部份阔叶生产出的纸颜色黑暗、尘埃多、成纸表面平滑度低，强度低、紧度低。 Our fifties, due to abundant timber resources, the use of red and white pine kraft paper manufacturing, good quality kraft paper manufacture this material, but with the reduction of timber resources, since the sixties began to use larch produce kraft paper, especially in northern China paper Factory use more larch branches mixed with a portion of broadleaf timber producing paper color dark, dusty, low-cost paper surface smoothness, low-intensity, low-tightness. 我国南方多采用竹浆配掺少量针叶长纤维木浆生产牛皮纸，这种牛皮纸外观颜色较黑暗，强度低，不适宜包装高档商品。 South China to use more bamboo mixed with a small amount of long fiber softwood kraft pulp production, the kraft exterior colors darker, low-intensity, high-end goods unsuitable packaging. 国外如加拿大、美国、芬兰等造纸业发达的国家，一般都采用较好、档次较高的红白松原料制造牛皮纸，其蒸煮方法大多是硫酸盐法，用上述原料和方法生产的牛皮纸纸质好，在中国市场上极受欢迎，但这种纸浆进口价格昂贵，进口受阻以至中断。 Foreign countries such as Canada, the United States, Finland and other developed countries, the paper industry, are generally used better, higher-grade raw material to manufacture red and white pine kraft paper, which is mostly kraft cooking method, using the raw material and method for producing kraft paper good very popular in the Chinese market, but the pulp imports expensive, imported blocked even interrupted.
本发明的目的在于避免上述现有技术中的不足而提供一种采用价廉的落叶松为原料替代红白松原料制造出质地优良的牛皮纸的制造工艺。 Object of the present invention to avoid the above-described prior art deficiencies and to provide a use of inexpensive raw material substitute for red and white pine larch raw material to manufacture a fine texture of the kraft paper manufacturing process.
本发明的目的以如下技术方案实现：将水份含量小于35％、冷水抽出物小于2.21％、热水抽出物小于1.9％、1％NaOH抽出物小于13.03％、木素含量小于27.44％的落叶松经扒皮、削片、蒸煮、洗料及除渣组成的前序工艺处理成的纸浆纤维，按重量将纤维：次氧酸钙等于100∶4的比例混合搅拌，漂白20～30分钟，经浓缩后洗料成白度为19°～21°的纸浆再经由打浆、上网、压榨、光压、烘干、压光、卷曲及复卷组成的后序工艺处理后制成精制牛皮纸。 Object of the present invention to achieve the following technical solutions: The moisture content less than 35%, less than 2.21% cold water extract, hot water extract of less than 1.9%, 1% NaOH extract less than 13.03%, the lignin content of less than 27.44% of the leaves easing skin stripping, chipping, cooking, cleaning materials and the composition of slag treatment process into the preamble of the pulp fibers, the fibers by weight: calcium secondary oxygen mixing equal proportions 100:4 stirring, bleach 20 to 30 minutes, concentrated After washing the material into the whiteness of 19 ° ~ 21 ° and then through the beating of pulp, the Internet, the press, light pressure, drying, calendaring, curl and rewinding subsequent treatment process consisting of kraft paper made from refined.
本发明与现有技术相比所具优点是：1、用较低档次的落叶松为原料，经本发明提供的加工工艺抄造成相当于昂贵的较高档次的红白松原料抄遣成的纸、解决了国产牛皮纸光泽暗，纸表面尘埃多，强度低的问题，经该工艺加工的牛皮纸具有表面光泽好、颜色浅黄、强度高紧度大，具有性能好、价格低、可以取代进口纸浆生产的牛皮纸。 The present invention over the prior art with the advantages are: 1, with a lower grade of larch as raw materials, processing technology provided by the present invention result in the equivalent of an expensive copy of a higher grade of red and white pine raw copy sent to the paper solve the domestic kraft paper glossy dark, dusty surface of the paper, the problem of low intensity, through the process of kraft process have surface gloss, color yellow, high strength tightness large, with good performance and low price, you can replace imported pulp production kraft paper. 2、不用进口纸浆就可生产出优质牛皮纸，为国家节省了外汇。 2, do not import kraft pulp can produce high-quality, save foreign exchange for the country. 3、造纸所用原料丰富，有利于造纸厂持续生产。 3, rich in raw materials used in paper making, paper mills continue to produce beneficial. 4、造纸工艺简单，只需在原牛皮纸加工工艺流程中加入漂白改色工艺，加工工艺易于实现。 4, the paper-making process as simple as adding the bleaching process to change color in the original kraft process flow, the process is easy to implement.
下面结合实施例详细描述本发明。 Below in connection with embodiments of the present invention is described in detail.
精制牛皮纸制造工艺：落叶松→扒皮→削片→蒸煮→洗料→除渣→漂白改色→浓缩→洗料→打浆→网前箱→上网→压榨→光压→烘干→压光→卷曲→复卷→成品。 Refined kraft paper manufacturing process: Larch → Flayer cooking → → → chipping slag material washing → → → concentrated bleach change color before beating → → → washing material cages → Internet → crush → light pressure calender → → → drying curly → → finished rewinding. 最佳实施例为选用含水量小于35％、冷水抽出物小于2.21％、热水抽出物小于1.9％、1％NaOH抽出物小于13.03％且木素含量小于27.44％的落叶松新碳材，扒去外皮和嫩皮后削片成长15～20mm、宽15mm、厚3～5mm，将切好的木片放在170m3蒸煮锅中并送入碱浓度为15％～17％的氢氧化钠和硫化度为25％～30％的碱液蒸煮4.5小时～5.5小时，其蒸煮卡伯价要求在43～53之内，这样可以确保成纸纸页具有较高的强度和均匀光泽的表面，蒸煮后再在压力洗浆机上洗去残碱和细小纤维，而后，将除去残渣的纸浆纤维漂白改色。 For the selection of the preferred embodiment of the moisture content of less than 35%, less than 2.21 percent of cold water extract, hot water extract of less than 1.9%, 1% NaOH extract less than 13.03% and the lignin content of less than 27.44% of the larch new carbon material, Pa After chipping to the skin and Nenpi grow 15 ~ 20mm, width 15mm, thickness 3 ~ 5mm, will cut wood on 170m3 cooking pot and into the alkali concentration of 15% to 17% sodium hydroxide and sulfide degree 25% to 30% of alkaline cooking 4.5 hours to 5.5 hours, the requirements in the cooking kappa of 43 to 53, which can ensure a paper sheet having a high strength and a uniform surface gloss, after cooking In pressure washers on alkali wash away residues and fines, and then, the residue was removed by bleaching of pulp fibers change color. 国内外一般都采用次氯酸钙与氯气分段对纸浆漂白，本发明不配以氯气，仅用次氯酸钙进行改色，改色时，根据重量将浆料：次氯酸钙按100∶4的比例将次氯酸钙拌入浆料中，在漂塔中常温下漂白20～30分钟，将白度为19°～21°的纸浆浓缩后再经10m2的真空洗浆机洗涤，洗掉氯气，然后再经四台φ450圆盘磨串联打浆，本发明采用传统的长网造纸机抄造，将打浆度为20～22SR的纸浆泵入纸机前的高位箱，调整浓度后纸机前的网前箱，其水位为22cm～24cm，而后上网，上网浓度为0.35％～0.4％，纸机速度为80m～140m/分，此速度可根据纸机的具体能力进行增减，然后依次经压榨，光压，其光压线压力为20kg/cm～25kg/cm，光压后再在烘缸上干燥，烘干气压为1.8kg/cm～2.0kg/cm，烘干后增设喷雾装置，以20kg/小时水量喷雾，以稳定水份的均匀性，喷水量视纸机车速不同而不同，提高纸页的外观质量和平滑度，纸页经喷雾后送入压光机压光，线压力为30kg/cm～40kg/cm，从压光机出来的即为精制牛皮纸，最后以卷筒和平板纸的形成入库。 At home and abroad are generally used calcium hypochlorite and chlorine bleaching of pulp segment, the invention is not accompanied by chlorine, calcium hypochlorite were only change color, change color when, according to the weight of the slurry: Press 100:4 of calcium hypochlorite The mix ratio of the slurry of calcium hypochlorite, the bleaching in the bleaching tower 20 to 30 minutes at room temperature, the whiteness is 19 ° ~ 21 ° after the pulp was concentrated by vacuum 10m2 slurry washing machine wash, wash chlorine and then through a series of four φ450 beating disk mill, the present invention employs a conventional Fourdrinier papermaking, the freeness of the pulp pump 20 ~ 22SR box high into the machine before, after adjusting the concentration of net paper before headbox, whose water level is 22cm ~ 24cm, then the Internet, Internet access at a concentration of 0.35% to 0.4% of the paper machine speed of 80m ~ 140m / min, this speed can be increased or decreased depending on the capacity of the paper machine, followed by squeezing, light pressure, the optical pressure line pressure of 20kg / cm ~ 25kg / cm, and then dried in a light pressure on the dryer, the drying gas pressure of 1.8kg / cm ~ 2.0kg / cm, the addition of a spray device after drying, to 20kg / hr water spray to stabilize moisture uniformity, water spray machine speed varies depending improve appearance quality and smoothness of the sheet after sheet spray into the calender light, line pressure 30kg / cm ~ 40kg / cm, from out of the calender is the refined kraft paper, paperboard and finally to form a storage reel peace. 一般卷筒规格为1092mm、787mm等，也可根据用户提出的要求生产，平板纸规格为787mm×1092mm。 General reel specifications for 1092mm, 787mm, etc., can also be produced according to requirements of users, flat paper specifications for 787mm × 1092mm.
表一给出了落叶松与其它原料的纤维尺寸。 Table I shows the larch and other raw fiber size.
表二给出了落叶松与其它原料的化学成份(％)。 Table II gives the chemical composition Larch and other raw materials (%).
表三给出了采用本发明造纸工艺抄造的精制牛皮纸各种性能。 Table III shows the use of the papermaking process of the present invention, various kraft papermaking refined performance.
表四给出了用落叶松原料采用旧工艺制造出的牛皮纸的各种性能。 Table IV shows the various properties of raw materials used by the old larch out of kraft paper manufacturing process.
表五给出了用美国红白松制造牛皮纸的各种性能。 Table V shows the red and white pine with American manufacturing kraft various properties.
表一 Table I
98.021.144.478.534.354..017.24.38.124.57.412.933.37.816.2&/table& &/tables&表二 98.021.144.478.534.354..017.24.38.124.57.412.933.37.816.2 &/ table& &/ tables& Table II
&/tables& &/ Tables&
表三& Table III &
表四 Table IV
&p&表五 &P& Table V
&/tables& &/ Tables&
落叶松管胞壁厚平均为9mm左右，比红白松的管胞壁厚在一倍以上，其纤维形态及平均长度以及化学成分可见表一和表二。 Larch average tracheid wall thickness of about 9mm, tracheid wall thickness than the red and white pine in more than doubled, and the average length of its fiber morphology and chemical composition are shown in Table I and Table II. 从表三～表五所给出的数据，表明了采用低档次的落叶松原料并采用本发明所提供的牛皮纸加工工艺，制造的精制牛皮纸其性能相当于国外用高档次的红白松原料加工制造的牛皮纸，同样用落叶松为原料，采用旧工艺和采用本发明所提供的工艺加工出的牛皮纸，其性能差别较大，用落叶松原料并采用本发明提供的加工工艺制造出的牛皮纸颜色浅黄，尘埃低，强度高，紧度高，可以满足国内市场上从低到高各种档次商品的包装用纸，而且价格低廉。 From Table III to Table V given data, indicating the use of low-grade raw materials and the use of larch kraft process provided by the present invention, refined kraft paper manufacturing its performance is equivalent to foreign raw materials with the red and white pine in the manufacture of high-grade Kraft, the same larch as raw material, the use of old technology and the present invention provides a process for the processing of kraft paper, the performance difference between the larger, and the use of materials with larch present invention provides a process for the manufacture of kraft color yellow, low dust, high strength, high tight to meet the domestic market from low to high commodity packaging of various grades of paper, and low prices. International Classification, , C06PublicationC10Request of examination as to substanceC14GrantedC19Cessation of patent right (cessation of patent right due to non-paymentof
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