CN101280532B - Preparation process of textile paper thread base paper - Google Patents

Abstract

The preparation process of textile paper thread base paper, first soak the water-soluble PVA synthetic fiber in water; then soak the bacterial cellulose wet film in NaOH solution, and then loosen and cut the wood pulp fiber with a Valley beater, and then mix it with the The pretreated water-soluble PVA synthetic fibers are mixed, refined in a PFI refiner, and finally bacterial fiber, PEO, CMC, and PAE are added to mix evenly, and then passed through the flow delivery system and made into paper by conventional methods. The invention adopts non-plant fiber, that is, bacterial fiber, water-soluble PVA fiber and wood pulp plant fiber to mix and make in proportion. The beating method is used to perform different beating treatments on various fibers to improve the papermaking performance of the fibers and enhance the bonding force between fibers; and through the synergistic effect of the additives in the papermaking process, the physical strength of the base paper is greatly improved.

Description

Preparation process of textile paper thread base paper

technical field

The invention belongs to the intersecting field of the textile industry and the papermaking industry, and in particular relates to a preparation process of a textile thread base paper.

Background technique

Paper thread base paper is a paper fiber product. It is made of safe, environmentally friendly and tough plant fibers as the main raw material. It is produced and processed into paper strips under specific conditions. The paper strips are processed by dyeing and twisting to form paper of various thicknesses. thread, successfully used in the production of textiles.

At present, the paper thread products in the domestic market are mainly used for weaving various styles of color craft weaving paper for sandal hats, fashion bags, disposable slippers, tatami mats, health mats, etc. product. There are no relevant research reports in China for the production of textile products such as wet towels and high-end T-shirts due to the difficulty of production and high technical content.

The requirements for the use of paper base paper determine its quality requirements. The base paper is not only low in basis weight (about 16g/m ² ), but also due to the Stretching, torsion and other compound forces, which require the base paper should have the characteristics of uniform structure, high dry strength, and high elongation; at the same time, the paper thread must also withstand the action of water force and wash resistance, that is, it must have a relatively strong High wet strength; while ensuring the dry strength and wet strength of the paper, it also requires better water absorption and softness.

Contents of the invention

The object of the present invention is to provide a preparation process of textile thread base paper which not only has a simple preparation process, but also can give the paper better environmental protection performance while satisfying the strength performance of the paper.

In order to achieve the above-mentioned purpose, the technical scheme adopted in the present invention is: first, heat the 3-4mm water-soluble PVA synthetic fiber at a water temperature of 50°C-60°C for 15min-20min; then soak the bacterial cellulose wet film in an 80°C Incubate in 0.1mol/L NaOH solution for 2 hours, rinse with water until neutral, and then decompose in a standard pulp decomposer at 8000 to 12000 revolutions; then decompose and cut wood pulp fibers with a mass concentration of 2% with a Valley beater, and The beating degree is 35°SR～45°SR, the wet weight is 16g～20g, and then it is mixed evenly with the pretreated water-soluble PVA synthetic fiber at a mass ratio of 97～98:3～2, and it is processed in a PFI refiner. Fine pulp, the beating gap is 0.3mm-0.5mm, the beating mass concentration is 8%-10%, the beating degree of pulping is 60°SR-70°SR; finally, the mixture of synthetic fiber and wood pulp fiber is added in a mass of 0.05%-0.07% 0.05% to 0.09% PEO, 0.1% to 0.5% CMC and 1.6% to 2.0% PAE were added to the total mixture mass, mixed evenly, and the mass concentration of the slurry was adjusted to 0.4% to 0.8%. Sending system, under the drying temperature of 70 ℃ ~ 80 ℃, adopt conventional method to make paper.

The invention adopts non-plant fiber, that is, bacterial fiber, water-soluble PVA fiber and wood pulp plant fiber to mix in proportion for papermaking. Due to poor papermaking performance of non-plant fibers and low weight of base paper (about 16g/ ^m2 ), the paper strength is not ideal; and the present invention first adopts beating method to carry out different beating treatments on various fibers to improve fiber papermaking performance, enhance the bonding force between fibers; and through the synergistic effect of additives in the papermaking process, the physical strength of the base paper is greatly improved. The dry strength tensile index of the product obtained by the preparation process of the present invention is 71.10N·m/g, the wet strength tensile index is 30.03Nmg ^-1 , the tear index is 8.01mN.m ² .g-1, and the folding resistance The degree is 460 times and the elongation is 2.46%.

Detailed ways

Example 1, firstly, the water-soluble PVA synthetic fiber of 3-4 mm was incubated at a water temperature of 50° C. for 15 minutes; then the bacterial cellulose wet film was soaked in a 0.1mol/L NaOH solution of 80° C. After neutralization, decompose 10,000 revolutions in a standard pulp decomposer; then decompose and cut wood pulp fibers with a mass concentration of 2% with a Valley beater, control the degree of beating to 45°SR, and wet weight 18g, and then mix it with the pretreated The water-soluble PVA synthetic fiber is mixed evenly with the mass ratio of 97:3, and refined in the PFI refiner, the beating gap is 0.3mm, the beating mass concentration is 8%, and the beating degree of beating is 70 ° SR; finally add Synthetic fiber and wood pulp fiber mixture mass 0.05% bacterial fiber, add total mixture mass 0.05% PEO, 0.4% CMC, 2.0% PAE, mix well, adjust the mass concentration of the pulp to 0.4%, and pass through the flow delivery system , at a drying temperature of 70°C, paper was made in a conventional manner.

Example 2, firstly, the water-soluble PVA synthetic fiber of 3-4mm was incubated at a water temperature of 60°C for 18min; After neutralization, decompose 8000 revolutions in a standard pulp decomposer; then decompose and cut wood pulp fibers with a mass concentration of 2% with a Valley beater, control the degree of beating to 40°SR, and wet weight 16g, and then mix it with the pretreated The water-soluble PVA synthetic fiber is mixed evenly with the mass ratio of 98:2, and refined in the PFI refiner, the beating gap is 0.4mm, the beating mass concentration is 9%, and the beating degree of beating is 65SR; finally add the synthetic fiber With the bacterial fiber of wood pulp fiber mixture quality 0.06%, add the PEO of total mixture quality 0.07%, the CMC of 0.1%, the PAE of 1.8%, mix homogeneously, the mass concentration of adjusting slurry is 0.6%, through flow delivery system, in At a drying temperature of 73°C, the conventional method was used to make paper.

Example 3, firstly, the water-soluble PVA synthetic fiber of 3-4 mm was incubated at a water temperature of 53° C. for 20 minutes; then the bacterial cellulose wet film was soaked in 0.1 mol/L NaOH solution of 80° C. After neutralization, decompose 11,000 rpm in a standard pulp decomposer; then decompose and cut wood pulp fibers with a mass concentration of 2% with a Valley beater, control the degree of beating to 42°SR, and wet weight 19g, and then mix it with the pretreated The water-soluble PVA synthetic fiber is mixed evenly with the mass ratio of 97.3:2.7, and is refined in the PFI refiner, the beating gap is 0.5mm, the beating mass concentration is 10%, and the beating degree of beating is 68 ° SR; Synthetic fiber and wood pulp fiber mixture quality 0.07% bacterial fiber, add total mixture quality 0.09% PEO, 0.32% CMC, 1.6% PAE, mix well, adjust the mass concentration of the pulp to be 0.8%, and pass through the flow delivery system , at a drying temperature of 77°C, paper was made in a conventional manner.

Example 4, firstly, the water-soluble PVA synthetic fiber of 3-4mm was incubated at a water temperature of 55°C for 17min; After neutralization, decompose 9000 revolutions in a standard pulp decomposer; then decompose and cut wood pulp fibers with a mass concentration of 2% with a Valley beater, control the degree of beating to 38°SR, and wet weight 17g, and then mix it with the pretreated The water-soluble PVA synthetic fiber is mixed evenly with the mass ratio of 97.5: 2.5, and is refined in the PFI refiner, the beating gap is 0.4mm, the beating mass concentration is 8.5%, and the beating degree of beating is 63 ° SR; Synthetic fiber and wood pulp fiber mixture mass 0.06% bacterial fiber, add total mixture mass 0.06% PEO, 0.5% CMC, 1.9% PAE, mix evenly, adjust the mass concentration of the pulp to 0.5%, and pass through the flow delivery system , at a drying temperature of 75°C, paper was made in a conventional manner.

Example 5, first, the 3-4mm water-soluble PVA synthetic fiber was incubated at a water temperature of 58°C for 19min; then the bacterial cellulose wet film was soaked in a 0.1mol/L NaOH solution of 80°C for 2h, and rinsed with water until After neutralization, decompose 12,000 rpm in a standard pulp decomposer; then decompose and cut wood pulp fibers with a mass concentration of 2% with a Valley beater, control the degree of beating to 35°SR, and wet weight 20g, and then mix it with the pretreated The water-soluble PVA synthetic fiber is mixed evenly with the mass ratio of 97.7: 2.3, is refined in the PFI refiner, the beating gap is 0.3mm, the beating mass concentration is 9.5%, and the beating degree of beating is 60 ° SR; Synthetic fiber and wood pulp fiber mixture quality 0.07% bacterial fiber, add total mixture quality 0.08% PEO, 0.2% CMC, 1.7% PAE, mix evenly, adjust the mass concentration of the pulp to be 0.7%, and pass through the flow delivery system , at a drying temperature of 80°C, paper was made in a conventional manner.

Claims (6)

1. The preparation process of textile paper thread base paper is characterized in that: 1) First, keep the 3-4mm water-soluble PVA synthetic fiber at a water temperature of 50°C-60°C for 15min-20min; 2) Then soak the bacterial cellulose wet film in a 0.1mol/L NaOH solution at 80°C for 2 hours, wash it with water until it is neutral, and then decompose it in a standard slurry decomposer at 8,000 to 12,000 rpm; 3) The wood pulp fibers with a mass concentration of 2% are disentangled and cut off with a Valley beater, the degree of beating is controlled to 35°SR to 45°SR, and the wet weight is 16g to 20g, and then it is mixed with the pretreated water-soluble PVA synthetic fiber Mix evenly with a mass ratio of 97-98:3-2, refine in a PFI refiner, the beating gap is 0.3mm-0.5mm, the beating mass concentration is 8%-10%, and the beating degree is 60° SR～70°SR; 4) Finally, add 0.05% to 0.07% of the synthetic fiber and wood pulp fiber mixture by the bacterial fiber made in step 2), add 0.05% to 0.09% of the total mixture quality of PEO, 0.1% to 0.5% of the CMC, 1.6% ~2.0% PAE, mixed evenly, adjusting the mass concentration of the slurry to 0.4% ~ 0.8%, passing through the flow delivery system, at a drying temperature of 70°C ~ 80°C, using a conventional method to make paper. 2. The preparation process of textile paper thread base paper according to claim 1, characterized in that: firstly, the water-soluble PVA synthetic fiber of 3-4mm is kept at a water temperature of 50°C for 15min; then the bacterial cellulose wet film is soaked Incubate in 0.1mol/L NaOH solution at 80°C for 2 hours, rinse with water until neutral, and then decompose in a standard pulp sample decomposer for 10,000 rpm; then decompose and cut wood pulp fibers with a mass concentration of 2% with a Valley beater, Control beating degree 45 ° SR, wet weight 18g, then mix it with pretreated water-soluble PVA synthetic fiber at a mass ratio of 97: 3, perform fine pulping in PFI refiner, beating gap is 0.3mm, The beating mass concentration is 8%, and the beating degree of pulping is 70 ° SR; finally add the bacterial fiber of 0.05% of the synthetic fiber and wood pulp fiber mixture quality, add the PEO of the total mixture quality of 0.05%, the CMC of 0.4%, and the PAE of 2.0% , mix evenly, adjust the mass concentration of the slurry to 0.4%, pass through the flow delivery system, and use a conventional method to make paper at a drying temperature of 70°C. 3. The preparation process of textile paper thread base paper according to claim 1, characterized in that: firstly, the 3-4mm water-soluble PVA synthetic fiber is kept at a water temperature of 60° C. for 18 minutes; then the bacterial cellulose wet film is soaked Incubate in 0.1mol/L NaOH solution at 80°C for 2 hours, rinse with water until neutral, and then decompose in a standard pulp decomposer for 8000 rpm; then decompose and cut wood pulp fibers with a mass concentration of 2% with a Valley beater, Control beating degree 40 ° SR, wet weight 16g, then mix it with pretreated water-soluble PVA synthetic fiber at a mass ratio of 98: 2, perform fine pulping in PFI refiner, beating gap is 0.4mm, The beating mass concentration is 9%, and the beating degree of pulping is 65 ° SR; finally, add 0.06% bacterial fiber of synthetic fiber and wood pulp fiber mixture quality, add PEO of 0.07% of total mixture quality, 0.1% of CMC, 1.8% of PAE , mix evenly, adjust the mass concentration of the slurry to 0.6%, pass through the flow delivery system, and use a conventional method to make paper at a drying temperature of 73°C. 4. The preparation process of textile paper thread base paper according to claim 1, characterized in that: firstly, the water-soluble PVA synthetic fiber of 3-4mm is kept at a water temperature of 53°C for 20min; then the bacterial cellulose wet film is soaked Incubate in 0.1mol/L NaOH solution at 80°C for 2 hours, rinse with water until neutral, and then decompose in a standard pulp sample decomposer for 11,000 rpm; then decompose and cut wood pulp fibers with a mass concentration of 2% with a Valley beater, Control beating degree 42 ° SR, wet weight 19g, then mix it with pretreated water-soluble PVA synthetic fiber at a mass ratio of 97.3: 2.7, refine pulp in PFI refiner, beating gap is 0.5mm, The mass concentration of beating is 10%, and the beating degree of pulping is 68 ° SR; finally add the bacterial fiber of 0.07% of synthetic fiber and wood pulp fiber mixture quality, add the PEO of 0.09% of total mixture quality, the CMC of 0.32%, the PAE of 1.6% , mix evenly, adjust the mass concentration of the slurry to 0.8%, pass through the flow delivery system, and use a conventional method to make paper at a drying temperature of 77°C. 5. The preparation process of textile paper thread base paper according to claim 1, characterized in that: firstly, the water-soluble PVA synthetic fiber of 3-4mm is kept at a water temperature of 55°C for 17min; then the bacterial cellulose wet film is soaked Incubate in 0.1mol/L NaOH solution at 80°C for 2 hours, rinse with water until neutral, and then decompose in a standard pulp sample decomposer for 9000 rpm; then decompose and cut wood pulp fibers with a mass concentration of 2% with a Valley beater, Control beating degree 38 ° SR, wet weight 17g, then mix it with pretreated water-soluble PVA synthetic fiber at a mass ratio of 97.5: 2.5, refine pulp in PFI refiner, beating gap is 0.4mm, The beating mass concentration is 8.5%, and the beating degree of pulping is 63 ° SR; finally add the bacterial fiber of 0.06% of the synthetic fiber and wood pulp fiber mixture quality, add the PEO of the total mixture quality of 0.06%, the CMC of 0.5%, and the PAE of 1.9% , mix evenly, adjust the mass concentration of the slurry to 0.5%, pass through the flow delivery system, and use a conventional method to make paper at a drying temperature of 75°C. 6. The preparation process of textile paper thread base paper according to claim 1, characterized in that: firstly, the 3-4mm water-soluble PVA synthetic fiber is kept at a water temperature of 58°C for 19 minutes; then the bacterial cellulose wet film is soaked Incubate in 0.1mol/L NaOH solution at 80°C for 2 hours, rinse with water until neutral, and then decompose in a standard pulp decomposer for 12,000 rpm; then decompose and cut wood pulp fibers with a mass concentration of 2% with a Valley beater, Control beating degree 35 ° SR, wet weight 20g, then mix it with pretreated water-soluble PVA synthetic fiber at a mass ratio of 97.7: 2.3, refine pulp in PFI refiner, beating gap is 0.3mm, The beating mass concentration is 9.5%, and the beating degree of pulping is 60 ° SR; finally add the bacterial fiber of 0.07% of the synthetic fiber and wood pulp fiber mixture quality, add the PEO of the total mixture quality of 0.08%, the CMC of 0.2%, and the PAE of 1.7% , mix evenly, adjust the mass concentration of the slurry to 0.7%, pass through the flow delivery system, and use a conventional method to make paper at a drying temperature of 80°C.