CN102493267A - Method for improving ring crush strength of corrugated base paper - Google Patents
Method for improving ring crush strength of corrugated base paper Download PDFInfo
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- CN102493267A CN102493267A CN2011103805812A CN201110380581A CN102493267A CN 102493267 A CN102493267 A CN 102493267A CN 2011103805812 A CN2011103805812 A CN 2011103805812A CN 201110380581 A CN201110380581 A CN 201110380581A CN 102493267 A CN102493267 A CN 102493267A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 229920002907 Guar gum Polymers 0.000 claims abstract description 57
- 125000002091 cationic group Chemical group 0.000 claims abstract description 57
- 239000000665 guar gum Substances 0.000 claims abstract description 57
- 229960002154 guar gum Drugs 0.000 claims abstract description 57
- 235000010417 guar gum Nutrition 0.000 claims abstract description 57
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 39
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 39
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 37
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 18
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 18
- 239000011734 sodium Substances 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 238000000576 coating method Methods 0.000 claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 239000003292 glue Substances 0.000 claims abstract description 14
- 229920002472 Starch Polymers 0.000 claims abstract description 13
- 239000008107 starch Substances 0.000 claims abstract description 13
- 238000004513 sizing Methods 0.000 claims description 62
- 238000002360 preparation method Methods 0.000 claims description 14
- 238000003490 calendering Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 7
- 239000012744 reinforcing agent Substances 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 45
- 239000007788 liquid Substances 0.000 description 25
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 239000010902 straw Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
本发明公开的一种提高瓦楞原纸环压强度的方法，取适量阳离子瓜尔胶与水混合，在恒温水浴锅中将其糊化直到阳离子瓜尔胶变为透明，制成阳离子瓜尔胶溶液。在糊化好的阳离子瓜尔胶溶液中加入适量的硅酸钠，经搅拌混合均匀后，配制成硅酸钠-淀粉的复合胶液，在涂布机上对瓦楞原纸进行涂布、干燥、压光即可。本发明提高瓦楞原纸环压强度的方法，使用硅酸钠溶液以不同的比例与阳离子瓜尔胶溶液混合涂布瓦楞原纸表面，硅酸钠为阳离子瓜尔胶的辅助增强助剂，硅酸钠和阳离子瓜尔胶形成的复合膜既有一定的柔韧性，又有硅酸钠膜的刚性，对瓦楞原纸环压强度的增强效果显著，且成本低廉，有利于降低环境污染负荷，具有较好的推广应用价值。The invention discloses a method for improving the ring compressive strength of corrugated base paper. Take an appropriate amount of cationic guar gum and mix it with water, gelatinize it in a constant temperature water bath until the cationic guar gum becomes transparent, and prepare a cationic guar gum solution . Add an appropriate amount of sodium silicate to the gelatinized cationic guar gum solution, stir and mix evenly, and prepare a sodium silicate-starch composite glue, and coat, dry, and press corrugated base paper on a coating machine. Just light. The method for improving the ring compressive strength of corrugated base paper in the present invention uses sodium silicate solution mixed with cationic guar gum solution in different proportions to coat the surface of corrugated base paper, sodium silicate is an auxiliary reinforcing agent for cationic guar gum, sodium silicate The composite film formed with cationic guar gum not only has a certain degree of flexibility, but also has the rigidity of sodium silicate film. promotion and application value.
Description
技术领域 technical field
本发明属于造纸技术领域，具体涉及一种提高瓦楞原纸环压强度的方法。The invention belongs to the technical field of papermaking, and in particular relates to a method for increasing the ring compressive strength of corrugated base paper.
背景技术 Background technique
瓦楞原纸被用来制造瓦楞纸箱，在瓦楞原纸的质量方面，有向低定量、高强度发展的趋势。纸张单位重量的降低，可以节约纸浆、节约能源、降低成品运输成本，增加企业的利润。但在实际使用中，低定量的瓦楞原纸的环压强度较低。环压强度是指将一定尺寸的瓦楞原纸纸样，插在试样座内，形成圆环形，在两测量板之间进行压缩，在压溃前所能承受的最大的力。瓦楞原纸的环压强度直接影响着瓦楞纸箱的抗压强度和瓦楞纸板的边压强度；因此，环压强度便成为瓦楞原纸在使用过程中的一项重要性能指标，目前国内生产的瓦楞原纸大多为强度居中或偏低，其主要原因是：瓦楞原纸大多是用草浆及废旧箱板纸生产，利用草浆生产的瓦楞原纸强度较低；废旧箱板纸被多次重复利用后强度降低导致生产出的瓦楞原纸环压强度较低。为了提高瓦楞原纸的环压强度，部分企业采取改进瓦楞原纸的打浆工艺或添加环压增强剂的方法。这些方法的效果都不够显著。Corrugated base paper is used to make corrugated cartons, and the quality of corrugated base paper tends to be low in weight and high in strength. The reduction of the unit weight of paper can save pulp, save energy, reduce the transportation cost of finished products, and increase the profit of the enterprise. But in actual use, the ring crush strength of low weight corrugated base paper is low. Ring compressive strength refers to the maximum force that a corrugated base paper sample of a certain size can withstand before being crushed when it is inserted into a sample holder to form a circular ring and compressed between two measuring plates. The ring compressive strength of corrugated base paper directly affects the compressive strength of corrugated cartons and the edge compressive strength of corrugated cardboard; therefore, the ring compressive strength has become an important performance index in the use of corrugated base paper. At present, most of the corrugated base paper produced in China The main reasons are: corrugated base paper is mostly produced with straw pulp and waste cardboard paper, and the strength of corrugated base paper produced with straw pulp is low; the strength of waste cardboard paper is reduced after repeated use. The ring compressive strength of the produced corrugated base paper is low. In order to improve the ring pressure strength of corrugated base paper, some enterprises adopt methods of improving the beating process of corrugated base paper or adding ring pressure enhancers. None of these methods are effective enough.
发明内容 Contents of the invention
本发明的目的是提供一种提高瓦楞原纸环压强度的方法，解决了现有方法制备出的瓦楞原纸环压强度低的问题。The object of the present invention is to provide a method for improving the ring compressive strength of corrugated base paper, which solves the problem of low ring compressive strength of the corrugated base paper prepared by the existing method.
本发明所采用的技术方案是，一种提高瓦楞原纸环压强度的方法，具体按照以下步骤实施：The technical scheme adopted in the present invention is a method for improving the ring compressive strength of corrugated base paper, which is specifically implemented according to the following steps:
步骤1：阳离子瓜尔胶溶液的制备：Step 1: Preparation of Cationic Guar Gum Solution:
称取适量阳离子瓜尔胶，将其溶解于水配制成质量浓度为9％的阳离子瓜尔胶溶液；在恒温水浴锅中将阳离子瓜尔胶溶液糊化，当糊化温度为95℃，糊化时间为20min时，阳离子瓜尔胶溶液变为透明，完全糊化；Take an appropriate amount of cationic guar gum, dissolve it in water and prepare a cationic guar gum solution with a mass concentration of 9%; gelatinize the cationic guar gum solution in a constant temperature water bath, when the gelatinization temperature is 95°C, the paste When the curing time was 20min, the cationic guar gum solution became transparent and completely gelatinized;
步骤2：取适量硅酸钠溶于水稀释至质量浓度为10％的硅酸钠溶液，备用；Step 2: Dissolve an appropriate amount of sodium silicate in water and dilute to a sodium silicate solution with a mass concentration of 10%, and set aside;
步骤3：硅酸钠-淀粉复合胶液的制备：Step 3: Preparation of sodium silicate-starch composite glue:
向步骤1得到的糊化好的阳离子瓜尔胶溶液中，按照其0.5％～2.5％的质量百分比加入步骤2得到的硅酸钠溶液，搅拌均匀，配制成表面施胶液，将得到的表面施胶液加热到90～95℃，保持表面施胶液的粘度为8～10mPa·s；In the gelatinized cationic guar gum solution obtained in step 1, add the sodium silicate solution obtained in step 2 according to its mass percentage of 0.5% to 2.5%, stir evenly, and prepare a surface sizing solution, and the obtained surface The sizing solution is heated to 90-95°C, and the viscosity of the surface sizing solution is kept at 8-10mPa·s;
步骤4：表面施胶液的涂布：Step 4: Coating of surface sizing solution:
将涂布机加热至96～100℃，用涂布刮棒将瓦楞原纸固定在涂布机的平台上，用滴管均匀地添加步骤3得到的表面施胶液，然后进行涂布，涂布后的纸张在电动上光机上烘干8～10min，涂布量控制在8g/m2；Heat the coater to 96-100°C, fix the corrugated base paper on the platform of the coater with a coating bar, add the surface sizing solution obtained in step 3 evenly with a dropper, and then coat, coat The finished paper is dried on an electric glazing machine for 8-10 minutes, and the coating amount is controlled at 8g/m 2 ;
步骤5：瓦楞原纸的压光：Step 5: Calendering of corrugated base paper:
将涂布过的瓦楞原纸在压光机上进行压光，线压力为50kgf/cm。The coated corrugated base paper is calendered on a calender with a line pressure of 50kgf/cm.
本发明的特点还在于，The present invention is also characterized in that,
其中的步骤3硅酸钠-淀粉复合胶液的制备，具体按照以下步骤实施：向步骤1得到的糊化好的阳离子瓜尔胶溶液中，按照其0.5％的质量百分比加入步骤2得到的硅酸钠溶液，搅拌均匀，配制成表面施胶液，将得到的表面施胶液加热到90～95℃，保持表面施胶液的粘度为8～10mPa·s。The preparation of step 3 sodium silicate-starch composite glue solution wherein, specifically implements according to the following steps: in the gelatinized cationic guar gum solution that step 1 obtains, add the silicon that step 2 obtains according to its mass percent of 0.5% Sodium acid solution, stir evenly, prepare surface sizing solution, heat the obtained surface sizing solution to 90-95°C, and keep the viscosity of the surface sizing solution at 8-10mPa·s.
其中的步骤3硅酸钠-淀粉复合胶液的制备，具体按照以下步骤实施：向步骤1得到的糊化好的阳离子瓜尔胶溶液中，按照其1.0％的质量百分比加入步骤2得到的硅酸钠溶液，搅拌均匀，配制成表面施胶液，将得到的表面施胶液加热到90～95℃，保持表面施胶液的粘度为8～10mPa·s。Wherein the preparation of step 3 sodium silicate-starch composite glue, specifically implement according to the following steps: in the gelatinized cationic guar gum solution that step 1 obtains, add the silicon that step 2 obtains according to its mass percentage of 1.0%. Sodium acid solution, stir evenly, prepare surface sizing solution, heat the obtained surface sizing solution to 90-95°C, and keep the viscosity of the surface sizing solution at 8-10mPa·s.
其中的步骤3硅酸钠-淀粉复合胶液的制备，具体按照以下步骤实施：向步骤1得到的糊化好的阳离子瓜尔胶溶液中，按照其1.5％的质量百分比加入步骤2得到的硅酸钠溶液，搅拌均匀，配制成表面施胶液，将得到的表面施胶液加热到90～95℃，保持表面施胶液的粘度为8～10mPa·s。Wherein the preparation of step 3 sodium silicate-starch composite glue, specifically implement according to the following steps: in the gelatinized cationic guar gum solution that step 1 obtains, add the silicon that step 2 obtains according to its mass percentage of 1.5%. Sodium acid solution, stir evenly, prepare surface sizing solution, heat the obtained surface sizing solution to 90-95°C, and keep the viscosity of the surface sizing solution at 8-10mPa·s.
其中的步骤3硅酸钠-淀粉复合胶液的制备，具体按照以下步骤实施：向步骤1得到的糊化好的阳离子瓜尔胶溶液中，按照其2.0％的质量百分比加入步骤2得到的硅酸钠溶液，搅拌均匀，配制成表面施胶液，将得到的表面施胶液加热到90～95℃，保持表面施胶液的粘度为8～10mPa·s。The preparation of step 3 sodium silicate-starch composite glue solution wherein, specifically implements according to the following steps: in the gelatinized cationic guar gum solution that step 1 obtains, add the silicon that step 2 obtains according to its mass percentage of 2.0%. Sodium acid solution, stir evenly, prepare surface sizing solution, heat the obtained surface sizing solution to 90-95°C, and keep the viscosity of the surface sizing solution at 8-10mPa·s.
其中的步骤3硅酸钠-淀粉复合胶液的制备，具体按照以下步骤实施：向步骤1得到的糊化好的阳离子瓜尔胶溶液中，按照其2.5％的质量百分比加入步骤2得到的硅酸钠溶液，搅拌均匀，配制成表面施胶液，将得到的表面施胶液加热到90～95℃，保持表面施胶液的粘度为8～10mPa·s。The preparation of step 3 sodium silicate-starch composite glue solution wherein, specifically implements according to the following steps: in the gelatinized cationic guar gum solution that step 1 obtains, add the silicon that step 2 obtains according to its mass percentage of 2.5%. Sodium acid solution, stir evenly, prepare surface sizing solution, heat the obtained surface sizing solution to 90-95°C, and keep the viscosity of the surface sizing solution at 8-10mPa·s.
本发明的有益效果是，使用的硅酸钠溶液以不同的比例与阳离子瓜尔胶溶液混合涂布于纸张表面，制备出的硅酸钠阳离子瓜尔胶对瓦楞原纸表面进行施胶，因为硅酸钠和阳离子瓜尔胶形成的复合膜既有一定的柔韧性，又有硅酸钠膜的刚性，这样就可以明显的提高瓦楞原纸的环压强度，且硅酸钠阳离子瓜尔胶表面施胶液成本低廉，有利于降低环境污染负荷，具有较好的推广应用价值。The beneficial effects of the present invention are that the sodium silicate solution used is mixed with the cationic guar gum solution in different proportions and coated on the paper surface, and the prepared sodium silicate cationic guar gum is used for sizing the corrugated base paper surface, because silicon The composite film formed by sodium silicate and cationic guar gum not only has a certain degree of flexibility, but also has the rigidity of sodium silicate film, so that the ring compressive strength of corrugated base paper can be significantly improved, and the surface of sodium silicate cationic guar gum is applied The glue has low cost, is conducive to reducing the environmental pollution load, and has good popularization and application value.
具体实施方式Detailed ways
下面结合具体实施方式对本发明进行详细说明。The present invention will be described in detail below in combination with specific embodiments.
实施例1Example 1
称取适量阳离子瓜尔胶，将其与水配制成质量浓度为9％的阳离子瓜尔胶溶液；在恒温水浴锅中将阳离子瓜尔胶溶液糊化，当糊化温度为95℃，糊化时间为20min，阳离子瓜尔胶溶液变为透明，完全糊化。取适量硅酸钠(工业品，主要技术指标为：波美度39～46°Bé、模数2.5～2.7)稀释至质量分数为10％浓度的硅酸钠溶液，备用。随后在糊化好的阳离子瓜尔胶液中，按0.5％的比例加入硅酸钠溶液，搅拌均匀，配制成表面施胶液。对施胶液加热到90～95℃，保持表面施胶液的粘度为8～10mPa·s左右，将涂布机加热至96～100℃，用涂布刮棒将瓦楞原纸固定在涂布机的平台上，用滴管均匀地添加一定量的表面施胶液，然后进行涂布，涂布后的纸张迅速地在电动上光机上烘干8～10min，涂布量控制在8g/m2，然后将涂布过的瓦楞原纸在压光机上进行压光即可，线压力为50kgf/cm。Take an appropriate amount of cationic guar gum, and mix it with water into a cationic guar gum solution with a mass concentration of 9%; gelatinize the cationic guar gum solution in a constant temperature water bath, when the gelatinization temperature is 95°C, gelatinize After 20 minutes, the cationic guar gum solution became transparent and completely gelatinized. Take an appropriate amount of sodium silicate (industrial product, the main technical indicators are: Baume degree 39-46°Bé, modulus 2.5-2.7) and dilute it to a sodium silicate solution with a mass fraction of 10% concentration, and set aside. Then, add sodium silicate solution in the ratio of 0.5% to the gelatinized cationic guar gum liquid, stir evenly, and prepare the surface sizing liquid. Heat the sizing liquid to 90-95°C, keep the viscosity of the surface sizing liquid at about 8-10mPa·s, heat the coater to 96-100°C, and fix the corrugated base paper on the coater with a coating bar On the platform, add a certain amount of surface sizing liquid evenly with a dropper, and then coat it. The coated paper is quickly dried on an electric glazing machine for 8-10 minutes, and the coating amount is controlled at 8g/m 2 , and then calender the coated corrugated base paper on a calender with a line pressure of 50kgf/cm.
实施例2Example 2
称取适量阳离子瓜尔胶，将其与水配制成质量浓度为9％的阳离子瓜尔胶溶液；在恒温水浴锅中将阳离子瓜尔胶溶液糊化，当糊化温度为95℃，糊化时间为20min，阳离子瓜尔胶溶液变为透明，完全糊化。取适量硅酸钠(工业品，主要技术指标为：波美度39～46°Bé、模数2.5～2.7)稀释至质量分数为10％浓度的硅酸钠溶液，备用。随后在糊化好的阳离子瓜尔胶液中，按1％的比例加入硅酸钠溶液，搅拌均匀，配制成表面施胶液。对施胶液加热到90～95℃，保持表面施胶液的粘度为8～10mPa·s左右，将涂布机加热至96～100℃，用涂布刮棒将瓦楞原纸固定在涂布机的平台上，用滴管均匀地添加一定量的表面施胶液，然后进行涂布，涂布后的纸张迅速地在电动上光机上烘干8～10min，涂布量控制在8g/m2，然后将涂布过的瓦楞原纸在压光机上进行压光即可，线压力为50kgf/cm。Take an appropriate amount of cationic guar gum, and mix it with water into a cationic guar gum solution with a mass concentration of 9%; gelatinize the cationic guar gum solution in a constant temperature water bath, when the gelatinization temperature is 95°C, gelatinize After 20 minutes, the cationic guar gum solution became transparent and completely gelatinized. Take an appropriate amount of sodium silicate (industrial product, the main technical indicators are: Baume degree 39-46°Bé, modulus 2.5-2.7) and dilute it to a sodium silicate solution with a mass fraction of 10% concentration, and set aside. Then, add sodium silicate solution in the ratio of 1% to the gelatinized cationic guar gum liquid, stir evenly, and prepare the surface sizing liquid. Heat the sizing liquid to 90-95°C, keep the viscosity of the surface sizing liquid at about 8-10mPa·s, heat the coater to 96-100°C, and fix the corrugated base paper on the coater with a coating bar On the platform, add a certain amount of surface sizing liquid evenly with a dropper, and then coat it. The coated paper is quickly dried on an electric glazing machine for 8-10 minutes, and the coating amount is controlled at 8g/m 2 , and then calender the coated corrugated base paper on a calender with a line pressure of 50kgf/cm.
实施例3Example 3
称取适量阳离子瓜尔胶，将其与水配制成质量浓度为9％的阳离子瓜尔胶溶液；在恒温水浴锅中将阳离子瓜尔胶溶液糊化，当糊化温度为95℃，糊化时间为20min，阳离子瓜尔胶溶液变为透明，完全糊化。取适量硅酸钠(工业品，主要技术指标为：波美度39～46°Bé、模数2.5～2.7)稀释至质量分数为10％浓度的硅酸钠溶液，备用。随后在糊化好的阳离子瓜尔胶液中，按1.5％的比例加入硅酸钠溶液，搅拌均匀，配制成表面施胶液。对施胶液加热到90～95℃，保持表面施胶液的粘度为8～10mPa·s左右，将涂布机加热至96～100℃，用涂布刮棒将瓦楞原纸固定在涂布机的平台上，用滴管均匀地添加一定量的表面施胶液，然后进行涂布，涂布后的纸张迅速地在电动上光机上烘干8～10min，涂布量控制在8g/m2，然后将涂布过的瓦楞原纸在压光机上进行压光即可，线压力为50kgf/cm。Take an appropriate amount of cationic guar gum, and mix it with water into a cationic guar gum solution with a mass concentration of 9%; gelatinize the cationic guar gum solution in a constant temperature water bath, when the gelatinization temperature is 95°C, gelatinize After 20 minutes, the cationic guar gum solution became transparent and completely gelatinized. Take an appropriate amount of sodium silicate (industrial product, the main technical indicators are: Baume degree 39-46°Bé, modulus 2.5-2.7) and dilute it to a sodium silicate solution with a mass fraction of 10% concentration, and set aside. Then, add sodium silicate solution in the ratio of 1.5% to the gelatinized cationic guar gum liquid, stir evenly, and prepare the surface sizing liquid. Heat the sizing liquid to 90-95°C, keep the viscosity of the surface sizing liquid at about 8-10mPa·s, heat the coater to 96-100°C, and fix the corrugated base paper on the coater with a coating bar On the platform, add a certain amount of surface sizing liquid evenly with a dropper, and then coat it. The coated paper is quickly dried on an electric glazing machine for 8-10 minutes, and the coating amount is controlled at 8g/m 2 , and then calender the coated corrugated base paper on a calender with a line pressure of 50kgf/cm.
实施例4Example 4
称取适量阳离子瓜尔胶，将其与水配制成质量浓度为9％的阳离子瓜尔胶溶液；在恒温水浴锅中将阳离子瓜尔胶溶液糊化，当糊化温度为95℃，糊化时间为20min，阳离子瓜尔胶溶液变为透明，完全糊化。取适量硅酸钠(工业品，主要技术指标为：波美度39～46°Bé、模数2.5～2.7)稀释至质量分数为10％浓度的硅酸钠溶液，备用。随后在糊化好的阳离子瓜尔胶液中，按2％的比例加入硅酸钠溶液，搅拌均匀，配制成表面施胶液。对施胶液加热到90～95℃，保持表面施胶液的粘度为8～10mPa·s左右，将涂布机加热至96～100℃，用涂布刮棒将瓦楞原纸固定在涂布机的平台上，用滴管均匀地添加一定量的表面施胶液，然后进行涂布，涂布后的纸张迅速地在电动上光机上烘干8～10min，涂布量控制在8g/m2，然后将涂布过的瓦楞原纸在压光机上进行压光即可，线压力为50kgf/cm。Take an appropriate amount of cationic guar gum, and mix it with water into a cationic guar gum solution with a mass concentration of 9%; gelatinize the cationic guar gum solution in a constant temperature water bath, when the gelatinization temperature is 95°C, gelatinize After 20 minutes, the cationic guar gum solution became transparent and completely gelatinized. Take an appropriate amount of sodium silicate (industrial product, the main technical indicators are: Baume degree 39-46°Bé, modulus 2.5-2.7) and dilute it to a sodium silicate solution with a mass fraction of 10% concentration, and set aside. Then, add sodium silicate solution in the ratio of 2% to the gelatinized cationic guar gum liquid, stir evenly, and prepare the surface sizing liquid. Heat the sizing liquid to 90-95°C, keep the viscosity of the surface sizing liquid at about 8-10mPa·s, heat the coater to 96-100°C, and fix the corrugated base paper on the coater with a coating bar On the platform, add a certain amount of surface sizing liquid evenly with a dropper, and then coat it. The coated paper is quickly dried on an electric glazing machine for 8-10 minutes, and the coating amount is controlled at 8g/m 2 , and then calender the coated corrugated base paper on a calender with a line pressure of 50kgf/cm.
实施例5Example 5
称取适量阳离子瓜尔胶，将其与水配制成质量浓度为9％的阳离子瓜尔胶溶液；在恒温水浴锅中将阳离子瓜尔胶溶液糊化，当糊化温度为95℃，糊化时间为20min，阳离子瓜尔胶溶液变为透明，完全糊化。取适量硅酸钠(工业品，主要技术指标为：波美度39～46°Bé、模数2.5～2.7)稀释至质量分数为10％浓度的硅酸钠溶液，备用。随后在糊化好的阳离子瓜尔胶液中，按2.5％的比例加入硅酸钠溶液，搅拌均匀，配制成表面施胶液。对施胶液加热到90～95℃，保持表面施胶液的粘度为8～10mPa·s左右，将涂布机加热至96～100℃，用涂布刮棒将瓦楞原纸固定在涂布机的平台上，用滴管均匀地添加一定量的表面施胶液，然后进行涂布，涂布后的纸张迅速地在电动上光机上烘干8～10min，涂布量控制在8g/m2，然后将涂布过的瓦楞原纸在压光机上进行压光即可，线压力为50kgf/cm。Take an appropriate amount of cationic guar gum, and mix it with water into a cationic guar gum solution with a mass concentration of 9%; gelatinize the cationic guar gum solution in a constant temperature water bath, when the gelatinization temperature is 95°C, gelatinize After 20 minutes, the cationic guar gum solution became transparent and completely gelatinized. Take an appropriate amount of sodium silicate (industrial product, the main technical indicators are: Baume degree 39-46°Bé, modulus 2.5-2.7) and dilute it to a sodium silicate solution with a mass fraction of 10% concentration, and set aside. Then, add sodium silicate solution in the ratio of 2.5% to the gelatinized cationic guar gum liquid, stir evenly, and prepare the surface sizing liquid. Heat the sizing liquid to 90-95°C, keep the viscosity of the surface sizing liquid at about 8-10mPa·s, heat the coater to 96-100°C, and fix the corrugated base paper on the coater with a coating bar On the platform, add a certain amount of surface sizing liquid evenly with a dropper, and then coat it. The coated paper is quickly dried on an electric glazing machine for 8-10 minutes, and the coating amount is controlled at 8g/m 2 , and then calender the coated corrugated base paper on a calender with a line pressure of 50kgf/cm.
由于瓦楞原纸原料的限制，一般的瓦楞原纸的环压强度较低，导致制造出的瓦楞纸箱的抗压强度和瓦楞纸板的边压强度较低；使瓦楞纸箱不能满足使用要求。而使用硅酸钠表面施胶的方法制备出的瓦楞原纸，因为硅酸钠和阳离子瓜尔胶形成的复合膜既有一定的柔韧性，又有硅酸钠膜的刚性，这样就可以明显的提高瓦楞原纸的环压强度，且成本低廉，具有较好的推广应用价值。Due to the limitation of raw materials for corrugated base paper, the ring compressive strength of general corrugated base paper is low, resulting in low compressive strength of corrugated cartons and edge compressive strength of corrugated boards; so that corrugated cartons cannot meet the use requirements. The corrugated base paper prepared by using sodium silicate surface sizing method, because the composite film formed by sodium silicate and cationic guar gum not only has a certain degree of flexibility, but also has the rigidity of sodium silicate film, so it can be clearly The ring compression strength of the corrugated base paper is improved, and the cost is low, so it has good popularization and application value.
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| CN107724173A (en) * | 2017-09-18 | 2018-02-23 | 芜湖米诺环保科技有限公司 | A kind of surface moisture-proof agent of highly intensified corrugated paper |
| CN108192407A (en) * | 2018-01-31 | 2018-06-22 | 山东冬瑞高新技术开发有限公司 | A kind of Environmental-friendinterior-wall interior-wall putty powder and preparation method thereof |
| CN109868681A (en) * | 2019-02-20 | 2019-06-11 | 常州苏达欧包装材料有限公司 | A kind of highly intensified corrugated paper ring pressure strengthening agent |
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| WO2011018146A1 (en) * | 2009-08-10 | 2011-02-17 | Cargill, Incorporated | Sizing-adhesive composition |
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| WO2011018146A1 (en) * | 2009-08-10 | 2011-02-17 | Cargill, Incorporated | Sizing-adhesive composition |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724173A (en) * | 2017-09-18 | 2018-02-23 | 芜湖米诺环保科技有限公司 | A kind of surface moisture-proof agent of highly intensified corrugated paper |
| CN108192407A (en) * | 2018-01-31 | 2018-06-22 | 山东冬瑞高新技术开发有限公司 | A kind of Environmental-friendinterior-wall interior-wall putty powder and preparation method thereof |
| CN108192407B (en) * | 2018-01-31 | 2020-04-03 | 弋阳县中泰君诺新材料有限公司 | Environment-friendly interior wall putty powder and preparation method thereof |
| CN109868681A (en) * | 2019-02-20 | 2019-06-11 | 常州苏达欧包装材料有限公司 | A kind of highly intensified corrugated paper ring pressure strengthening agent |
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