WO2016011736A1 - 一种本色竹纤维纸浆、其制备方法及其制备的本色生活用纸原纸 - Google Patents

一种本色竹纤维纸浆、其制备方法及其制备的本色生活用纸原纸 Download PDF

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Publication number
WO2016011736A1
WO2016011736A1 PCT/CN2014/091225 CN2014091225W WO2016011736A1 WO 2016011736 A1 WO2016011736 A1 WO 2016011736A1 CN 2014091225 W CN2014091225 W CN 2014091225W WO 2016011736 A1 WO2016011736 A1 WO 2016011736A1
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Prior art keywords
pulp
beating
paper
cooking
bamboo
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PCT/CN2014/091225
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English (en)
French (fr)
Inventor
沈根莲
周骏
Original Assignee
四川环龙新材料有限公司
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Priority claimed from CN201410355005.6A external-priority patent/CN104141255B/zh
Application filed by 四川环龙新材料有限公司 filed Critical 四川环龙新材料有限公司
Publication of WO2016011736A1 publication Critical patent/WO2016011736A1/zh

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • 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
    • 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
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse

Definitions

  • the invention belongs to the technical field of pulp and papermaking, and particularly relates to a natural bamboo fiber tissue paper and a preparation method thereof.
  • cultural paper refers to printing paper, also called offset paper, or short for lightweight coated paper, generally between 60 grams and 120 grams, less than 60 grams is writing paper, higher than 120 grams.
  • the gloss is called double copper paper.
  • Offset paper and double copper paper are high-grade paper products.
  • Tissue paper refers to all kinds of sanitary wipes used for personal home, outing, etc., including roll toilet paper, removable toilet paper, boxed facial tissue, pocket paper, paper handkerchief, napkin, paper towel, kitchen paper towel, etc. .
  • the prior art cultural paper and household paper have many shortcomings, and the use of virgin wood pulp often requires the cutting down of a large amount of wood, which seriously affects the ecological balance of the environment and causes long-term adverse consequences; preparation of some virgin wood pulp The tensile strength, softness and water absorption of cultural papers do not meet the prescribed standards; and in order to increase the whiteness of the paper, the prior art uses the bleached pulp as a raw material in the pulping process.
  • the bleaching agent used mainly includes two kinds of oxidizing agents and reducing agents; at present, mainly oxidizing agents, chlorine, hypochlorite, chlorine dioxide, etc. are commonly used; organic chlorides produced in production contain diterpenes, furans, etc.
  • the object of the present invention is to overcome the disadvantages of the prior art and provide a bamboo fiber pulp which has good properties. Good performance parameters can replace conventional wood pulp and are superior to conventional wood pulp.
  • Another object of the present invention is to provide a method for preparing bamboo fiber pulp, which has the characteristics of high yield, simple operation, convenient production, low cost, and environmental protection;
  • a third object of the present invention is to provide a natural tissue base paper prepared from bamboo fiber pulp.
  • the object of the present invention is achieved by the following technical solution: a bamboo fiber pulp, the whiteness of the pulp is 20 ⁇ 40 ⁇ 3 ⁇ 4 ISO, the tensile index is ⁇ 7.9 ⁇ 111 ⁇ , and the folding resistance is 15 ⁇ 200
  • the crack length is 5 to 10 km
  • the ash content is ⁇ 1%
  • the tear degree is 200 to 650 mN
  • the beating degree is 10 to 25 ° SR.
  • bamboo fiber is selected as raw material, and the raw material is dry-processed into fiber powder having a length of 2 to 4 cm;
  • Screening and washing The slurry after refining is screened, and the selected slurry is adjusted to a slurry concentration of 10 to 12%, sent to a vacuum washer for washing, and washed to obtain bamboo fiber pulp.
  • the bamboo fiber raw material comprises a combination of one or more of bamboo, yellow bamboo, Cizhu, Shuizhu, Baijiazhu, and Xifengzhu.
  • the cooking apparatus in step S2 is a batch star digester, a continuous digester or a vertical cooking pot.
  • the cooking apparatus is a batch star digester or a continuous digester ⁇
  • the specific operation of the cooking is: adding the fiber powder and the cooking liquid to the intermittent star digester or the continuous digester, and heating the steam to the steam to the temperature 120 ⁇ 135°C, heating, small venting, heat preservation 60 ⁇ 80min;
  • the cooking equipment is vertical cooking pot ⁇
  • the specific operation of cooking the fiber powder is filled into the cooking pot from the hot black liquor through the potter.
  • the lid When the pot is full, the lid is closed, and the cooking pot is replenished with the cooking temperature of 100 ⁇ 110 °C. ⁇
  • the air in the pot is discharged and raised to 0.2 ⁇ 0.25MPa, the cooking liquid is heated to 120 ⁇ 135°C, the temperature is raised, the heat is kept and replaced 60 ⁇ 80mi n, and finally the slurry is sent to the spray pot by the conveying screw.
  • the process of soaking the fiber powder with the cooking liquid is further included, wherein the soaking time is 50 to 70 minutes, and the temperature of the soaking liquid is 85 to 90 °C.
  • the application of bamboo fiber pulp in the preparation of household paper is toilet paper, paper towel, food wrapping paper, lunch box or wiping paper.
  • the longitudinal wet tensile strength is 27 to 55 N/m
  • the tensile index is 8.6 to 10.8 N*m/g
  • the whiteness is 23 to 25%
  • the brightness is 23 to 31%.
  • the present invention has the following advantages:
  • the present invention uses a natural color bamboo pulp which is free of bleaching agent as the main fiber raw material of the product, and can produce natural color paper and cultural paper which are generally recognized by visual brightness, and the pulp has good quality. Performance parameters, can replace conventional wood pulp, and is superior to conventional wood pulp;
  • the present invention adopts a cooking liquid with KOH added in the cooking step, and effectively avoids the use of sodium sulfide compared with the conventional cooking liquid containing NaOH, sodium sulfide, etc., and eliminates residual contamination of the sulfide in the product;
  • the bamboo pulp is not bleached, so the utility model has the advantages of low raw material consumption, high yield, low cost and low pollution, and avoids damage to the fiber caused by the bamboo pulp in the bleaching process. Moreover, the environmental pollution caused by the exhaust gas and waste liquid generated by bleaching is eliminated, and therefore, the invention method has the characteristics of ecological environment protection;
  • the bamboo pulp is not bleached in the production process, thereby avoiding possible harm to the human body by the chemicals used in the bleaching process, and the prepared bamboo pulp product does not contain dioxins and adsorbable organic halogenation.
  • Carcinogens such as substances, maintaining 100% natural color of bamboo fiber.
  • Example 1 Preparation of bamboo fiber pulp, which comprises the following steps:
  • Raw bamboo, yellow bamboo and Cizhu are selected as raw materials, and the raw materials are dry-processed into fiber powder having a length of 2 cm;
  • Cooking Soak the fiber powder with the cooking liquid, the soaking time is 50 min, the temperature of the soaking liquid is 85 ° C, and the fiber powder and the cooking liquid are uniformly mixed according to the ratio of the liquid to the liquid of 1:2.5, and then added to the intermittent star digester. Heating to a temperature of 120 ° C by steam, heating, small venting, holding for 60 min, obtaining a high hardness pulp having a hardness of 70 potassium permanganate; the cooking liquor is 10% KOH;
  • S5. Screening and washing The slurry after refining is screened, and the selected slurry is adjusted to a slurry concentration of 10%, sent to a vacuum washer for washing, and washed to obtain bamboo fiber pulp, pulp.
  • the whiteness is 20% ISO
  • the tensile index is 7.9N*m/g
  • the folding resistance is 15 times
  • the crack length is 5km
  • the ash is 1%
  • the tear is 200 mN
  • the beating degree is 10°SR.
  • Example 2 Preparation of bamboo fiber pulp, which comprises the following steps:
  • Example 3 Preparation of bamboo fiber pulp, which comprises the following steps:
  • Cooking Soak the fiber powder with cooking liquid, the soaking time is 70min, the temperature of the soaking liquid is 90°C, and the fiber powder is filled into the cooking pot from the hot black liquid through the potter, and is closed when the pot is full.
  • the lid is filled with cooking water at a temperature of 100 ° C in the cooking pot, and the air in the pot is discharged from the pot and raised to 0.2 MPa.
  • the cooking liquid is heated to 125 ° C, heated, kept and replaced for 70 min, and finally transferred by a conveying screw.
  • the slurry is sent to a spray pot to obtain a high-hardness pulp having a hardness of 80% potassium permanganate; wherein the cooking liquid is 13% KOH, and the fiber powder and the cooking liquid are added in an amount of 1:3;
  • S5. Screening and washing The slurry after refining is screened, and the selected slurry is adjusted to a pulp concentration of 11%, sent to a vacuum washer for washing, and washed to obtain bamboo fiber pulp, pulp.
  • the whiteness is 25% ISO
  • the tensile index is 10N*m/g
  • the folding resistance is 80 times
  • the crack length is 6km
  • the ash is 0.5%
  • the tear is 32 0mN
  • the beating degree is 15°SR.
  • Example 4 Preparation of bamboo fiber pulp, which comprises the following steps:
  • bamboo fiber pulp is obtained.
  • the whiteness of the pulp is 32% ISO, the tensile index is 18N*m/g, the folding resistance is 120 times, and the crack length is 7km. Ash is 0.6% and tear is 4
  • the beating degree is 18°SR.
  • Example 5 Preparation of bamboo fiber pulp, which comprises the following steps:
  • Raw bamboo and water bamboo fiber are selected as raw materials, and the raw materials are dry-processed into fiber powder having a length of 4 cm;
  • S5. Screening and washing The slurry after refining is screened, and the selected slurry is adjusted to a slurry concentration of 12%, sent to a vacuum washer for washing, and washed to obtain bamboo fiber pulp, pulp.
  • the whiteness is 36% ISO, the tensile index is 20N*m/g, the folding resistance is 180 times, the crack length is 8km, the ash is 0.2%, the tear is 6 00mN, and the beating degree is 22°SR.
  • Example 6 A toilet paper prepared by bamboo fiber pulp, the preparation method thereof comprises the following steps:
  • the fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained pulping quality standard is: the beating degree is 42°SR, and the wet weight of beating is 7g.
  • the pulp after the beating was subjected to papermaking to obtain the above-mentioned primary color toilet paper.
  • the papermaking comprises the papermaking obtained by the above-mentioned beating, and the papermaking is carried out in a single-roller single-drying single-fleece tissue machine, and the hair is obtained after the papermaking.
  • the primary color toilet paper as described.
  • the primary color toilet paper has a basis weight of 13.5 g/m 2
  • Example 7 A toilet paper prepared by bamboo fiber pulp, the preparation method thereof comprises the following steps:
  • the fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained pulping quality standard was: a beating degree of 42 ° SR, and a wet weight of 7.5 g.
  • the pulp after the beating was subjected to papermaking to obtain the above-mentioned primary color toilet paper.
  • the papermaking comprises papermaking the pulp obtained after the above-mentioned beating, and the papermaking is carried out in a single-dish single-bed single-fed toilet paper machine, and the primary color toilet paper according to the present invention is obtained after the papermaking.
  • the primary color toilet paper has a basis weight of 13.5 g/m 2
  • Example 8 A toilet paper prepared by bamboo fiber pulp, the preparation method thereof comprises the following steps:
  • the above-mentioned fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained pulping quality standard is: the beating degree is 45°SR, and the wet weight of the beating is l lg.
  • the pulp after the beating was subjected to papermaking to obtain the above-mentioned primary color toilet paper.
  • the papermaking comprises papermaking the pulp obtained after the above-mentioned beating, and the papermaking is carried out in a single-dish single-bed single-fed toilet paper machine, and the primary color toilet paper according to the present invention is obtained after the papermaking.
  • the primary color toilet paper has a basis weight of 13.5 g/m 2
  • Embodiment 9 A paper towel prepared by bamboo fiber pulp, the preparation method thereof comprises the following steps:
  • the fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained pulping quality standard is: the beating degree is 45°SR, and the wet weight of the beating is l lg.
  • the pulp after the beating was subjected to papermaking to obtain the primary color paper towel.
  • the papermaking is carried out in a long net twin cylinder paper machine.
  • the primary color paper towel has a basis weight of 38.2 g/m 2 , a lateral liquid absorption height of 67 mm/100 s, a longitudinal wet tensile strength of 36 N/m, and a brightness of 26.5%.
  • Example 10 A paper towel prepared by bamboo fiber pulp, the preparation method thereof comprises the following steps:
  • the above-mentioned fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained pulping quality standard is: the beating degree is 42°SR, and the wet weight of beating is 7g.
  • the pulp after the beating was subjected to papermaking to obtain the primary color paper towel.
  • the papermaking is carried out in a rotary screen single cylinder paper machine.
  • the primary color paper towel has a basis weight of 21.5 g/m 2 , a lateral liquid absorption height of 50 mm/100 s, a longitudinal wet tensile strength of 31 N/m, and a brightness of 22.5%.
  • Example 11 A paper towel prepared from bamboo fiber pulp, the preparation method thereof comprises the following steps:
  • the fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained pulping quality standard is: the beating degree is 45°SR, and the wet weight of the beating is l lg.
  • the pulp after the beating was subjected to papermaking to obtain the primary color paper towel.
  • the papermaking is carried out in a slanting net single cylinder paper machine.
  • the primary color paper towel has a basis weight of 25.5 g/m2, a lateral liquid absorption height of 55 mm/100 s, a longitudinal wet tensile strength of 28 N/m, and a brightness of 23%.
  • Embodiment 12 A food packaging paper prepared by a bamboo fiber pulp, the preparation method comprising the following steps: [0070] using the bamboo fiber pulp prepared in the above-mentioned Embodiment 1-5, the fiber pulp is refining in a double disc The machine is beating, the beating concentration is 5%, the beating pressure is 0.2MPa, and the beating current is 35A.
  • the pulping quality standard obtained after beating is: the beating degree is 42°SR, and the beating wet weight is 8.2g.
  • the pulp after the beating was uniformly mixed and then subjected to papermaking to obtain the above-mentioned primary color food wrapping paper.
  • the primary color food packaging paper has a basis weight of 5 0.5 g/m 2 , a thickness of 70.0 um, a smoothness of 47 s, a reverse of 41 s, a whiteness of 23 ⁇ 3 ⁇ 4, an opacity of 96.3%, and a crack length of 5.95 km.
  • the transverse folding resistance is 98 times, the transverse tearing degree is 306 mN, and the moisture content is 5.1%.
  • Example 13 A food packaging paper prepared by a bamboo fiber pulp, the preparation method comprising the following steps: [0072] using the bamboo fiber pulp prepared in the above 1-5, the fiber pulp is double-disk refining The machine is beating, the beating concentration is 5%, the beating pressure is 0.2MPa, and the beating current is 35A.
  • the pulping quality standard obtained after beating is: the beating degree is 42°SR, and the beating wet weight is 9g.
  • the pulp after the beating was uniformly mixed and then subjected to papermaking to obtain the above-mentioned primary color food wrapping paper.
  • the primary color food packaging paper has a basis weight of 60.1 g/m 2 and a thickness of 81.0 u.
  • smoothness is 43s for the front, 37s for the reverse, 23% for the whiteness, 97.6% for the opacity, 7. 5km for the split length, 178 times for the lateral fold resistance, 371mN for the transverse tear, and moisture content. 5.3 ⁇ 3 ⁇ 4.
  • Example 14 A food packaging paper prepared by bamboo fiber pulp, the preparation method thereof comprises the following steps: [0074] using the bamboo fiber pulp prepared in the above-mentioned Embodiment 1-5, the fiber pulp is refining in a double disc The machine is beating, the beating concentration is 5%, the beating pressure is 0.2MPa, and the beating current is 35A.
  • the pulping quality standard obtained after beating is: the beating degree is 42°SR, and the beating wet weight is 11.2g.
  • the pulp after the beating was uniformly mixed and then subjected to papermaking to obtain the above-mentioned primary color food wrapping paper.
  • the primary color food packaging paper has a basis weight of 62.0 g/m 2 , a thickness of 79.0 um, a smoothness of 47 s, a reverse of 39 s, a whiteness of 25%, an opacity of 97.6%, and a crack length of 8.0 km.
  • the folding resistance is 200 times, the transverse tear is 600mN, and the moisture content is 5.2 ⁇ 3 ⁇ 4.
  • Example 15 A lunch box prepared by bamboo fiber pulp, the preparation method thereof comprises the following steps:
  • the above-mentioned fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained primary color bamboo pulp has a beating degree of 42°SR, and the wet weight of the beating is 2.8 g.
  • the slurry after the beating is uniformly mixed and then subjected to post-treatment to obtain the above-mentioned primary color lunch box.
  • the post-treatment is to add an oil-repellent agent to the amount of 1.0%; the fixative 0.1 5%; the water-repellent agent to be added in an amount of 2.5%, in a vacuum degree of 0.045-0.055
  • Drying temperature under MPa conditions 175-180 °C drying time between 75-80s.
  • the obtained primary color lunch box fully meets the requirements of GB 18006.1-1999 A and the like.
  • Example 16 A lunch box prepared by bamboo fiber pulp, the preparation method thereof comprises the following steps:
  • the above-mentioned fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained primary color bamboo pulp has a beating degree of 38°SR and a wet weight of 1.8 g.
  • the slurry after the beating is uniformly mixed and then subjected to post-treatment to obtain the above-mentioned primary color lunch box.
  • the post-treatment is that the amount of the oil-repellent agent is 1.0%: the water repellent agent is 3%, and the drying temperature is 175-180 ° C under vacuum condition of 0.055 MP to dry the crucible 80 S.
  • the obtained primary color lunch box fully meets the requirements of GB 18006.1-1999 A and the like.
  • Example 17 A lunch box prepared by bamboo fiber pulp, the preparation method thereof comprises the following steps:
  • the fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating Place
  • the primary color bamboo pulp was beaten at a degree of 32° SR, and the wet weight of the beating was 2.3 g.
  • the slurry after the beating is uniformly mixed and then subjected to post-treatment to obtain the above-mentioned primary color lunch box.
  • the post-treatment is that the amount of the oil-repellent agent is 1.0%; the water-repellent agent is 2.0%, the setting is ij0.13%, and the drying temperature is 175 ° C under vacuum condition of 0.055 MP for drying for 80 s.
  • the obtained primary color lunch box fully meets the requirements of GB 18006.1-1999 A and the like.
  • Example 18 A wiping paper prepared from a bamboo fiber pulp, the preparation method comprising the following steps:
  • the fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained primary color bamboo pulp has a beating degree of 58°SR, and the wet weight of the beating is 1.7 g.
  • the slurry after the beating was uniformly mixed and then formed into a paper to obtain the primary color wiping paper.
  • the papermaking is carried out in a rotary screen single cylinder paper machine.
  • the primary color wiping paper has a basis weight of 21.5 g/m 2 , a lateral liquid absorption height of 52 mm/100 s, a longitudinal wet tensile strength of 27 N/m, and a brightness of 27%.
  • Example 19 A wiping paper prepared from bamboo fiber pulp, the preparation method comprising the following steps:
  • the fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained primary color bamboo pulp has a beating degree of 50°SR, and the wet weight of the beating is 1.8 g.
  • the slurry after the beating was uniformly mixed and then formed into a paper to obtain the primary color wiping paper.
  • the papermaking is carried out in a slanting net single cylinder paper machine.
  • the primary color wiping paper has a basis weight of 25.5 g/m 2 , a lateral aspiration height of 65 mm/100 s, a longitudinal wet tensile strength of 35 N/m, and a brightness of 31%.
  • Example 20 A wiping paper prepared from a bamboo fiber pulp, the preparation method comprising the following steps:
  • the fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained primary color bamboo pulp has a beating degree of 45°SR, and the wet weight of the beating is 2.8 g.
  • the pulp after the beating was subjected to papermaking to obtain the primary color wiping paper.
  • the papermaking is carried out in a long net single cylinder paper machine.
  • the primary color wiping paper has a basis weight of 23.0 g/m 2 , a lateral aspiration height of 76 mm/100 s, and a longitudinal wet tensile strength of 55.
  • Example 21 A copy paper prepared by bamboo fiber pulp, the preparation method thereof comprises the following steps:
  • the above-mentioned fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating Place
  • the primary color bamboo pulp has a beating degree of 36°SR, and the wet weight of the beating is 8 g.
  • the pulp after the beating was subjected to papermaking to obtain the above-mentioned primary color copy paper.
  • the primary color copy paper has a quantitative force of 68.2 g/m 2
  • the longitudinal and transverse average fracture length is 3.92km
  • the longitudinal stiffness is 95m N
  • the transverse stiffness is 60m.
  • Example 22 A copy paper prepared by bamboo fiber pulp, the preparation method thereof comprises the following steps:
  • the fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained primary color bamboo pulp has a beating degree of 38°SR, and the wet weight of the beating is 10.2 g.
  • the pulp after the beating was subjected to papermaking to obtain the primary color copying paper.
  • the primary color copy paper has a basis weight of 71.9 g/m 2
  • the longitudinal and transverse average fracture length is 7.5km
  • the longitudinal stiffness is 125m N
  • the transverse stiffness is 90m.
  • Example 23 A copy paper prepared by bamboo fiber pulp, the preparation method comprising the following steps:
  • the above-mentioned fiber pulp was beaten in a double disc refiner, the beating concentration was 5%, the beating pressure was 0.2 MPa, the beating current was 35 A, after beating
  • the obtained primary color bamboo pulp has a beating degree of 36°SR, and the wet weight of the beating is 8.2 g.
  • the pulp after the beating was subjected to papermaking to obtain the above-mentioned primary color copy paper.
  • the primary color copy paper has a basis weight of 71.9 g/m 2
  • the longitudinal and transverse average fracture length is 7.5km
  • the longitudinal stiffness is 125m N
  • the transverse stiffness is 90m.
  • Example 24 An offset printing paper prepared by a bamboo fiber pulp, the preparation method comprising the following steps: [0094] using the bamboo fiber pulp prepared in the above-mentioned Embodiment 1-5, the above-mentioned fiber pulp is refining in a double disc The machine is beaten with a beating concentration of 5%, a beating pressure of 0.2 MPa, and a beating current of 35 A. The pulping degree of the original color bamboo pulp obtained after beating is 33°SR, and the wet weight of the beating is 2.1 g. The slurry after the pulping was uniformly mixed and then subjected to papermaking to obtain the above-mentioned primary color offset printing paper.
  • the primary color offset printing paper has a basis weight of 71.0 g/m 2 , an opacity of 85%, a crack length of 7.2 km, a whiteness of 26% ISO, a transverse folding resistance of 19 times, and a tearing degree of 258 mN.
  • Example 25 An offset printing paper prepared by a bamboo fiber pulp, the preparation method comprising the following steps: [0096] using the bamboo fiber pulp prepared in the above-mentioned Embodiment 1-5, the above-mentioned fiber pulp is refining in a double disc The machine is beating, the beating concentration is 5%, the beating pressure is 0.2MPa, the beating current is 35A, after beating The primary color bamboo pulp was beaten at 34°SR, and the wet weight was 1.8g. The slurry after the beating was uniformly mixed and then subjected to papermaking to obtain the above-mentioned primary color offset printing paper.
  • the papermaking comprises papermaking the pulp obtained after the above-mentioned beating, and the papermaking is carried out in a long-web multi-cylinder machine.
  • the primary color offset printing paper has a basis weight of 70.0 g/m 2 , an opacity of 84%, a crack length of 8.0 km, a whiteness of 26 ⁇ 3 ⁇ 4 ISO, a transverse folding resistance of 22 times, and a tearing degree of 229 mN.
  • Example 26 An offset printing paper prepared by a bamboo fiber pulp, the preparation method comprising the following steps: [0098] using the bamboo fiber pulp prepared in the above-mentioned Embodiment 1-5, the fiber pulp is refining in a double disc The machine was beaten with a beating concentration of 5%, a beating pressure of 0.2 MPa, and a beating current of 35 A. The pulping degree of the original color bamboo pulp obtained after beating was 32°SR, and the wet weight of the beating was 2.1 g. The slurry after the beating was uniformly mixed and then subjected to papermaking to obtain the above-described offset printing paper.
  • the papermaking comprises papermaking the pulp obtained after the above-mentioned beating, and the papermaking is carried out in a long-web multi-cylinder paper machine, and after the papermaking, the color offset printing paper according to the present invention is obtained.
  • the primary color offset printing paper has a basis weight of 69.0 g/m 2 , an opacity of 89%, a crack length of 4.8 km, a whiteness of 24% ISO, a transverse folding resistance of 30 times, and a tearing degree of 290 mN.

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Abstract

一种本色竹纤维纸浆，其白度为20～40% ISO，抗张指数≥7.9N·m/g，耐折度为15～200次，裂断长为5～10km，灰分≤1%，撕裂度为200～650mN，打浆度为10～25°SR。该纸浆的制备方法包括原料碎解、蒸煮、疏解、磨浆、筛选和洗涤。由该纸浆制备的本色生活用纸原纸的裂断长为5.95~8.0km，横向耐折度为98~200次，横向撕裂度为3.6~600mN，横向吸液高度为50~100mm/100s，纵向湿抗张强度为27~55N/m，抗张指数为8.6~10.8N·m/g，白度为23~25%，亮度为23~31%。所述纸浆具有良好的性能参数，能够替代常规木浆。

Description

一种本色竹纤维纸浆、 其制备方法及其制备的本色生活用纸原纸 技术领域
[0001] 本发明属于制浆造纸技术领域， 具体涉及一种本色竹纤维生活用纸原纸及其制 备方法。
背景技术
[0002] 由于目前世界范围的木材资源的短缺日益加重， 在不破坏森林和环境的情况下 生产纸浆和造纸成为各造纸企业追求的目标。 作为解决这一问题的方案， 利用 一年或两年生植物如： 农田废物、 竹子、 制糖后废弃的甘蔗秆、 稻麦草等作为 主要材料而由非木材植物纤维制造纸浆的技术一直受到关注。
[0003] 通常文化用纸是指印刷用纸， 也叫胶版纸， 或者是轻量涂布纸的简称， 一般在 60克到 120克之间， 低于 60g的是书写纸， 高于 120克有涂布有光泽度的叫双铜纸 。 胶版纸和双铜纸均为高档纸制品。 生活用纸指为照顾个人居家， 外出等所使 用的各类卫生擦拭用纸， 包括卷筒卫生纸、 抽取式卫生纸、 盒装面纸、 袖珍面 纸、 纸手帕、 餐巾纸、 擦手纸、 厨房纸巾等。
[0004] 现有技术的文化用纸和生活用纸存在诸多缺点， 多使用原生木浆， 由于需要砍 伐大量的木材， 严重影响环境的生态平衡并导致长远的不利后果； 部分原生木 浆制备的文化用纸的抗张强度、 柔软度、 吸水性达不到规定标准； 且现有技术 为了增加纸张的白度， 在制浆过程中都欧式使用经过漂白的制浆作为原料生产 的， 漂白所使用的漂剂主要有氧化剂和还原剂两种； 目前主要以氧化剂为主， 较常用的有氯、 次氯酸盐、 二氧化氯等； 生产中产生的有机氯化物含有的二嚿 、 呋喃等具有致癌性、 致突变性、 致畸胎性、 多发性脑神经病变和急毒性， 排 放的污水对接纳的水体环境有较大的不良影响。 浆料经过强氧化剂的漂白后， 对纤维强度有不同成都的损伤， 强度、 韧性下降， 生产的产品在使用过程中易 存在掉毛、 掉粉， 湿强度降低的问题。
技术问题
[0005] 本发明的目的在于克服现有技术的缺点， 提供一种竹纤维纸浆， 该纸浆具有良 好的性能参数， 能够替代常规木浆， 且优于常规木浆。
[0006] 本发明的另一目的在于提供一种竹纤维纸浆的制备方法， 该方法具有得率高、 操作简单、 生产方便、 成本低、 绿色环保的特性；
[0007] 本发明的第三目的在于提供一种由竹纤维纸浆制备的本色生活用纸原纸。
问题的解决方案
技术解决方案
[0008] 本发明的目的通过以下技术方案来实现： 一种竹纤维纸浆， 所述纸浆的白度为 20〜40<¾ ISO， 抗张指数≥7.9^111^， 耐折度为 15〜200次， 裂断长为 5〜10km， 灰分≤1%， 撕裂度为 200〜650mN， 打浆度为 10〜25°SR。
[0009] 上述竹纤维纸浆的制备方法， 它包括以下步骤：
[0010] S1.原料碎解： 选取竹类纤维为原料， 将原料干法碎解成长度为 2〜4cm的纤维 粉；
[0011] S2.蒸煮： 将纤维粉和蒸煮液按 1:2.5〜4的料液比混合均匀后进行蒸煮处理， 控 制温度在 120〜135°C保温 60〜80min， 得硬度为高锰酸钾值 70〜90的高硬度浆； 其中， 所述蒸煮液为 10〜17%的 KOH;
[0012] S3.疏解： 浆上述高硬度浆送入高浓磨浆机中进行疏解， 疏解吋间为 25〜35min
[0013] S4.磨浆： 用稀黑液稀释疏解后的竹浆至浓度 5〜10%， 将稀释浆料进行磨浆， 得到打浆度为 10〜20°SR的浆料；
[0014] S5.
筛选和洗涤： 将磨浆后的浆料进行筛选， 筛选后的浆料调整浆浓度至 10〜 12%， 送入真空洗浆机中进行洗涤， 经洗涤得竹纤维纸浆。
[0015] 所述竹类纤维原料包括毛竹、 黄竹、 慈竹、 水竹、 白夹竹、 西风竹一种或多 种的组合。
[0016] 步骤 S2中所述蒸煮的仪器为间歇式球星蒸煮器、 连续蒸煮器或立式蒸煮锅。
[0017] 所述蒸煮的仪器为间歇式球星蒸煮器或连续蒸煮器吋， 蒸煮的具体操作为： 将纤维粉和蒸煮液加入间歇式球星蒸煮器或连续蒸煮器中， 通入蒸汽加热升温 至 120〜135°C， 升温、 小放气， 保温 60〜80min; 所述蒸煮的仪器为立式蒸煮锅 吋， 蒸煮的具体操作为： 将纤维粉由热黑液通过装锅器装入蒸煮锅中， 当装锅 满后关闭锅盖， 往蒸煮锅中补充温度为 100〜110°C蒸煮液， 同吋排出锅内的空气 并升压至 0.2〜0.25MPa， 蒸煮液升温至 120〜135°C， 升温、 保温和置换 60〜80mi n， 最后用输送螺旋放将浆送到喷放锅。
[0018] 进一步地， 蒸煮前还包括用蒸煮液对纤维粉进行浸泡的处理， 所述浸泡吋间 为 50〜70min， 浸泡液温度为 85〜90°C。
[0019] 竹纤维纸浆在制备生活用纸中的应用。 所述生活用纸为卫生纸、 擦手纸、 食 品包装纸、 餐盒或擦拭纸。
[0020] 用上述纸浆制备的本色生活用纸原纸， 所述本色生活用纸原纸裂断长为 5.95
〜8.0km， 横向耐折度为 98〜200次， 横向撕裂度为 3.6〜600mN， 横向吸液高度 5
0〜100mm/100s， 纵向湿抗张强度为 27〜55 N/m， 抗张指数为 8.6〜10.8N*m/g， 白度为 23〜25%， 亮度为 23〜31%。
发明的有益效果
有益效果
[0021] 本发明具有以下优点：
[0022] 1.本发明使用一种全程不加漂白剂的本色竹浆料作为产品的主要纤维原料， 生 产视觉亮度上能够得到人们普遍认可的本色生活用纸和文化用纸， 该纸浆具有 良好的性能参数， 能够替代常规木浆， 且优于常规木浆；
[0023] 2.本发明在蒸煮步骤采用加入 KOH的蒸煮液， 与传统含 NaOH、 硫化钠等的蒸 煮液相比， 有效避免了硫化钠的使用， 杜绝了产品中硫化物的残留污染；
[0024] 3.本发明在生产过程中竹浆未经过漂白， 因此具有原材料消耗低、 产率高、 成 本低、 污染小的优点， 避免了竹浆在漂白过程中造成对纤维带来的损伤， 且杜 绝了因漂白产生的废气、 废液对环境的污染， 因此， 发明方法具有生态环保的 特性；
[0025] 4.本发明在生产过程中竹浆未经过漂白， 避免了漂白过程中所使用的化学品对 人体可能的伤害， 以及所制备的竹浆产品中不含有二嗯英和可吸附有机卤化物 等致癌物质， 保持竹纤维 100%的天然本色。 本发明的实施方式
[0026] 下面结合实施例对本发明做进一步的描述， 本发明的保护范围不局限于以下所 述。
[0027] 实施例 1 : 竹纤维纸浆的制备， 它包括以下步骤：
[0028] S1.原料碎解： 选取毛竹、 黄竹和慈竹为原料， 将原料干法碎解成长度为 2cm 的纤维粉；
[0029] S2.
蒸煮： 用蒸煮液对纤维粉进行浸泡， 所述浸泡吋间为 50min， 浸泡液温度为 85°C ， 将纤维粉和蒸煮液按 1:2.5的料液比混合均匀后加入间歇式球星蒸煮器， 通入 蒸汽加热升温至 120°C， 升温、 小放气， 保温 60min， 得硬度为高锰酸钾值 70的 高硬度浆； 所述蒸煮液为 10%的 KOH;
[0030] S3.疏解： 浆上述高硬度浆送入高浓磨浆机中进行疏解， 疏解吋间为 25min;
[0031] S4.磨浆： 用稀黑液稀释疏解后的竹浆至浓度 5%， 将稀释浆料进行磨浆， 得到 打浆度为 10°SR的浆料；
[0032] S5.筛选和洗涤： 将磨浆后的浆料进行筛选， 筛选后的浆料调整浆浓度至 10% ， 送入真空洗浆机中进行洗涤， 经洗涤得竹纤维纸浆， 纸浆的白度为 20% ISO, 抗张指数为 7.9N*m/g， 耐折度为 15次， 裂断长为 5km， 灰分为 1% , 撕裂度为 200 mN， 打浆度为 10°SR。
[0033] 实施例 2: 竹纤维纸浆的制备， 它包括以下步骤：
[0034] S1.原料碎解： 选取水竹和白夹竹纤维为原料， 将原料干法碎解成长度为 4cm 的纤维粉；
[0035] S2.蒸煮： 将纤维粉和蒸煮液按 1:4的料液比混合均匀后连续蒸煮器， 通入蒸汽 加热升温至 135°C， 升温、 小放气， 保温 80min， 得硬度为高锰酸钾值 90的高硬 度浆； 其中， 所述蒸煮液为 17%的 KOH;
[0036] S3.疏解： 浆上述高硬度浆送入高浓磨浆机中进行疏解， 疏解吋间为 35min;
[0037] S4.磨浆： 用稀黑液稀释疏解后的竹浆至浓度 10%， 将稀释浆料进行磨浆， 得到 打浆度为 20°SR的浆料；
[0038] S5.筛选和洗涤： 将磨浆后的浆料进行筛选， 筛选后的浆料调整浆浓度至 12% ， 送入真空洗浆机中进行洗涤， 经洗涤得竹纤维纸浆， 纸浆的白度为 40% ISO , 抗张指数为 15N*m/g， 耐折度为 200次， 裂断长为 10km， 灰分为 0.8<¾， 撕裂度为 650mN， 打浆度为 25°SR。
[0039] 实施例 3: 竹纤维纸浆的制备， 它包括以下步骤：
[0040] S1.原料碎解： 选取西风竹纤维为原料， 将原料干法碎解成长度为 3cm的纤维 粉；
[0041] S2.
蒸煮： 用蒸煮液对纤维粉进行浸泡， 所述浸泡吋间为 70min， 浸泡液温度为 90°C ， 将纤维粉由热黑液通过装锅器装入蒸煮锅中， 当装锅满后关闭锅盖， 往蒸煮 锅中补充温度为 100°C蒸煮液， 同吋排出锅内的空气并升压至 0.2MPa， 蒸煮液升 温至 125°C， 升温、 保温和置换 70min， 最后用输送螺旋放将浆送到喷放锅， 得 硬度为高锰酸钾值 80的高硬度浆； 其中， 所述蒸煮液为 13%的 KOH， 纤维粉和 蒸煮液的加入量为 1:3 ;
[0042] S3.疏解： 浆上述高硬度浆送入高浓磨浆机中进行疏解， 疏解吋间为 30min;
[0043] S4.磨浆： 用稀黑液稀释疏解后的竹浆至浓度 6%， 将稀释浆料进行磨浆， 得到 打浆度为 13°SR的浆料；
[0044] S5.筛选和洗涤： 将磨浆后的浆料进行筛选， 筛选后的浆料调整浆浓度至 11% ， 送入真空洗浆机中进行洗涤， 经洗涤得竹纤维纸浆， 纸浆的白度为 25% ISO , 抗张指数为 10N*m/g， 耐折度为 80次， 裂断长为 6km， 灰分为 0.5% ' 撕裂度为 32 0mN， 打浆度为 15°SR。
[0045] 实施例 4: 竹纤维纸浆的制备， 它包括以下步骤：
[0046] S1.原料碎解： 选取水竹纤维为原料， 将原料干法碎解成长度为 2cm的纤维粉
[0047] S2.蒸煮： 将纤维粉由热黑液通过装锅器装入蒸煮锅中， 当装锅满后关闭锅盖 ， 往蒸煮锅中补充温度为 110°C蒸煮液， 同吋排出锅内的空气并升压至 0.25MPa ， 蒸煮液升温至 130°C， 升温、 保温和置换 74min， 最后用输送螺旋放将浆送到 喷放锅， 得硬度为高锰酸钾值 84的高硬度浆； 其中， 所述蒸煮液为 15%的 KOH ， 纤维粉和蒸煮液的加入量为 1:3.4; [0048] S3.疏解： 浆上述高硬度浆送入高浓磨浆机中进行疏解， 疏解吋间为 32min;
[0049] S4.磨浆： 用稀黑液稀释疏解后的竹浆至浓度 8%， 将稀释浆料进行磨浆， 得到 打浆度为 16°SR的浆料；
[0050] S5.筛选和洗涤： 将磨浆后的浆料进行筛选， 筛选后的浆料调整浆浓度至 10%
， 送入真空洗浆机中进行洗涤， 经洗涤得竹纤维纸浆， 纸浆的白度为 32% ISO, 抗张指数为 18N*m/g， 耐折度为 120次， 裂断长为 7km， 灰分为 0.6% , 撕裂度为 4
80mN， 打浆度为 18°SR。
[0051] 实施例 5: 竹纤维纸浆的制备， 它包括以下步骤：
[0052] S1.原料碎解： 选取毛竹和水竹纤维为原料， 将原料干法碎解成长度为 4cm的 纤维粉；
[0053] S2.蒸煮： 将纤维粉由热黑液通过装锅器装入蒸煮锅中， 当装锅满后关闭锅盖 ， 往蒸煮锅中补充温度为 105°C蒸煮液， 同吋排出锅内的空气并升压至 0.23MPa ， 蒸煮液升温至 128°C， 升温、 保温和置换 78min， 最后用输送螺旋放将浆送到 喷放锅， 得硬度为高锰酸钾值 88的高硬度浆； 其中， 所述蒸煮液为 15%的 KOH ， 纤维粉和蒸煮液的加入量为 1:3.8;
[0054] S3.疏解： 浆上述高硬度浆送入高浓磨浆机中进行疏解， 疏解吋间为 30min;
[0055] S4.磨浆： 用稀黑液稀释疏解后的竹浆至浓度 9%， 将稀释浆料进行磨浆， 得到 打浆度为 15°SR的浆料；
[0056] S5.筛选和洗涤： 将磨浆后的浆料进行筛选， 筛选后的浆料调整浆浓度至 12% ， 送入真空洗浆机中进行洗涤， 经洗涤得竹纤维纸浆， 纸浆的白度为 36% ISO, 抗张指数为 20N*m/g， 耐折度为 180次， 裂断长为 8km， 灰分为 0.2%， 撕裂度为 6 OOmN, 打浆度为 22°SR。
[0057] 实施例 6: —种竹纤维纸浆制备的卫生纸， 其制备方法包括以下步骤：
[0058] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到的成浆质量标准为： 打浆度 42°SR， 打浆湿重为 7g。 将打浆后的浆料进行抄 造， 得到所述的原色卫生纸。 所述的抄造包括将上述打浆后所得到的成浆进行 抄造， 所述的抄造在单圆网单烘缸单毛毯卫生纸机中进行， 抄造之后得到本发 明所述的原色卫生纸。 所述的原色卫生纸定量为 13.5g/m 2
， 横向吸液高度 50mm/100s， 抗张指数为 8.6N*m/g， 柔软度 106mN， 亮度为 26%
[0059] 实施例 7: —种竹纤维纸浆制备的卫生纸， 其制备方法包括以下步骤：
[0060] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到的成浆质量标准为： 打浆度 42°SR， 打浆湿重为 7.5g。 将打浆后的浆料进行 抄造， 得到所述的原色卫生纸。 所述的抄造包括将上述打浆后所得到的成浆进 行抄造， 所述的抄造在单圆网单烘缸单毛毯卫生纸机中进行， 抄造之后得到本 发明所述的原色卫生纸。 所述的原色卫生纸定量为 13.5g/m 2
， 横向吸液高度 65mm/100s， 抗张指数为 8.6N*m/g， 柔软度 83mN， 亮度为 25.6%
[0061] 实施例 8: —种竹纤维纸浆制备的卫生纸， 其制备方法包括以下步骤：
[0062] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到的成浆质量标准为： 打浆度 45°SR， 打浆湿重为 l lg。 将打浆后的浆料进行 抄造， 得到所述的原色卫生纸。 所述的抄造包括将上述打浆后所得到的成浆进 行抄造， 所述的抄造在单圆网单烘缸单毛毯卫生纸机中进行， 抄造之后得到本 发明所述的原色卫生纸。 所述的原色卫生纸定量为 13.5g/m 2
， 横向吸液高度 78mm/100s， 抗张指数为 10.8N*m/g， 柔软度 79mN， 亮度为 26%
[0063] 实施例 9: 一种竹纤维纸浆制备的擦手纸， 其制备方法包括以下步骤：
[0064] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到的成浆质量标准为： 打浆度 45°SR， 打浆湿重为 l lg。 将打浆后的浆料进行 抄造， 得到所述的原色擦手纸。 所述的抄造在长网双缸纸机中进行。 所述的原 色擦手纸定量为 38.2g/m 2， 横向吸液高度 67mm/100s， 纵向湿抗张强度为 36 N/m ， 亮度为 26.5%。 [0065] 实施例 10: —种竹纤维纸浆制备的擦手纸， 其制备方法包括以下步骤：
[0066] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到的成浆质量标准为： 打浆度 42°SR， 打浆湿重为 7g。 将打浆后的浆料进行抄 造， 得到所述的原色擦手纸。 所述的抄造在圆网单缸纸机中进行。 所述的原色 擦手纸定量为 21.5g/m 2， 横向吸液高度 50mm/100s， 纵向湿抗张强度为 31 N/m， 亮度为 22.5%。
[0067] 实施例 11: 一种竹纤维纸浆制备的擦手纸， 其制备方法包括以下步骤：
[0068] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到的成浆质量标准为： 打浆度 45°SR， 打浆湿重为 l lg。 将打浆后的浆料进行 抄造， 得到所述的原色擦手纸。 所述的抄造在斜网单缸纸机中进行。 所述的原 色擦手纸定量为 25.5g/m2， 横向吸液高度 55mm/100s， 纵向湿抗张强度为 28 N/m ， 亮度为 23%。
[0069] 实施例 12: —种竹纤维纸浆制备的食品包装纸， 其制备方法包括以下步骤： [0070] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到的成浆质量标准为： 打浆度 42°SR， 打浆湿重为 8.2g。 将打浆后的浆料混合 均匀后进行抄造， 得到所述的原色食品包装纸。 所述的原色食品包装纸定量为 5 0.5g/m 2， 厚度为 70.0 u m， 平滑度正面为 47s， 反面为 41s， 白度为 23<¾， 不透明 度为 96.3%， 裂断长为 5.95km， 横向耐折度为 98次， 横向撕裂度为 306mN， 水分 含量为 5.1%。
[0071] 实施例 13: —种竹纤维纸浆制备的食品包装纸， 其制备方法包括以下步骤： [0072] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进行 打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所得 到的成浆质量标准为： 打浆度 42°SR， 打浆湿重为 9g。 将打浆后的浆料混合均匀 后进行抄造， 得到所述的原色食品包装纸。 所述的原色食品包装纸定量为 60.1g/ m 2， 厚度为 81.0 u m， 平滑度正面为 43s， 反面为 37s， 白度为 23%， 不透明度为 97.6%， 裂断长为 7. 5km, 横向耐折度为 178次， 横向撕裂度为 371mN， 水分含量为 5.3<¾。
[0073] 实施例 14: 一种竹纤维纸浆制备的食品包装纸， 其制备方法包括以下步骤： [0074] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进行 打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所得 到的成浆质量标准为： 打浆度 42°SR， 打浆湿重为 11.2g。 将打浆后的浆料混合均 匀后进行抄造， 得到所述的原色食品包装纸。 所述的原色食品包装纸定量为 62.0 g/m 2， 厚度为 79.0 u m， 平滑度正面为 47s， 反面为 39s， 白度为 25%， 不透明度 为 97.6%， 裂断长为 8.0km， 横向耐折度为 200次， 横向撕裂度为 600mN， 水分含 量为 5.2<¾。
[0075] 实施例 15: —种竹纤维纸浆制备的餐盒， 其制备方法包括以下步骤：
[0076] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到原色竹浆打浆度 42°SR， 打浆湿重为 2.8g。 将打浆后的浆料均匀混合后进行 后处理， 得到所述的原色餐盒。 所述的后处理为加入防油剂加入量为 1.0%; 定 着剂 0.1 5%; 防水剂加入量 2.5%， 在真空度 0.045-0.055
MPa条件下烘干温度 175-180°C烘干吋间 75-80s。 所得到的原色餐盒完全符合 GB 18006.1-1999 A等品的要求。
[0077] 实施例 16: —种竹纤维纸浆制备的餐盒， 其制备方法包括以下步骤：
[0078] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到原色竹浆打浆度 38°SR， 打浆湿重为 1.8g。 将打浆后的浆料均匀混合后进行 后处理， 得到所述的原色餐盒。 所述的后处理为防油剂加入量为 1.0%: 防水剂 3 %, 在真空度 0.055 MP条件下烘干温度175-180°C烘干吋间80S。 所得到的原色餐 盒完全符合 GB 18006.1-1999 A等品的要求。
[0079] 实施例 17: —种竹纤维纸浆制备的餐盒， 其制备方法包括以下步骤：
[0080] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到原色竹浆打浆度 32°SR， 打浆湿重为 2.3g。 将打浆后的浆料均匀混合后进行 后处理， 得到所述的原色餐盒。 所述的后处理为防油剂加入量为 1.0%; 防水剂 2. 0% , 定着齐 ij0.13%， 在真空度 0.055 MP条件下烘干温度 175°C烘干吋间 80s。 所得 到的原色餐盒完全符合 GB 18006.1-1999 A等品的要求。
[0081] 实施例 18: —种竹纤维纸浆制备的擦拭纸， 其制备方法包括以下步骤：
[0082] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到原色竹浆打浆度 58°SR， 打浆湿重为 1.7g。 将打浆后的浆料混合均匀后进行 抄造， 得到所述的原色擦拭纸。 所述的抄造在圆网单缸纸机中进行。 所述的原 色擦拭纸定量为 21.5g/m 2， 横向吸液高度 52mm/100s， 纵向湿抗张强度为 27N/m ， 亮度为 27%。
[0083] 实施例 19: 一种竹纤维纸浆制备的擦拭纸， 其制备方法包括以下步骤：
[0084] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进行 打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所得 到原色竹浆打浆度 50°SR， 打浆湿重为 1.8g。 将打浆后的浆料混合均匀后进行抄 造， 得到所述的原色擦拭纸。 所述的抄造在斜网单缸纸机中进行。 所述的原色 擦拭纸定量为 25.5g/m 2， 横向吸液高度 65mm/100s， 纵向湿抗张强度为 35 N/m， 亮度为 31%。
[0085] 实施例 20: —种竹纤维纸浆制备的擦拭纸， 其制备方法包括以下步骤：
[0086] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到原色竹浆打浆度 45°SR， 打浆湿重为 2.8g。 将打浆后的浆料进行抄造， 得到 所述的原色擦拭纸。 所述的抄造在长网单缸纸机中进行。 所述的原色擦拭纸定 量为 23.0g/m 2， 横向吸液高度 76mm/100s， 纵向湿抗张强度为 55
N/m， 亮度为 30<¾。
[0087] 实施例 21: —种竹纤维纸浆制备的复印纸， 其制备方法包括以下步骤：
[0088] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到原色竹浆打浆度 36°SR， 打浆湿重为 8g。 将打浆后的浆料进行抄造， 得到所 述的原色复印纸。 所述的原色复印纸定量力 68.2g/m 2
， 纵横向平均裂断长为 3.92km， 纵向挺度为 95m N， 横向挺度为 60m
N， 白度为 26.2%。
[0089] 实施例 22: —种竹纤维纸浆制备的复印纸， 其制备方法包括以下步骤：
[0090] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到原色竹浆打浆度 38°SR， 打浆湿重为 10.2g。 将打浆后的浆料进行抄造， 得 到所述的原色复印纸。 所述的原色复印纸定量为 71.9g/m 2
， 纵横向平均裂断长为 7.5km， 纵向挺度为 125m N， 横向挺度为 90m
N， 白度为 38%。
[0091] 实施例 23: —种竹纤维纸浆制备的复印纸， 其制备方法包括以下步骤：
[0092] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到原色竹浆打浆度 36°SR， 打浆湿重为 8.2g。 将打浆后的浆料进行抄造， 得到 所述的原色复印纸。 所述的原色复印纸定量为 71.9g/m 2
， 纵横向平均裂断长为 7.5km， 纵向挺度为 125m N， 横向挺度为 90m
N， 白度为 38%。
[0093] 实施例 24: —种竹纤维纸浆制备的胶版印刷纸， 其制备方法包括以下步骤： [0094] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到原色竹浆打浆度 33°SR， 打浆湿重为 2.1g。 将浆打浆后的浆料混合均匀后进 行抄造， 得到所述的原色胶版印刷纸。 所述的原色胶版印刷纸定量为 71.0g/m 2， 不透明度 85%， 裂断长为 7.2km， 白度为 26%ISO， 横向耐折度为 19次， 撕裂度为 258mN。
[0095] 实施例 25: —种竹纤维纸浆制备的胶版印刷纸， 其制备方法包括以下步骤： [0096] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到原色竹浆打浆度 34°SR， 打浆湿重为 1.8g。 将打浆后的浆料均匀混合后进行 抄造， 得到所述的原色胶版印刷纸。 所述的抄造包括将上述打浆后所得到的成 浆进行抄造， 所述的抄造在长网多缸纸机中进行。 所述的原色胶版印刷纸定量 为 70.0g/m 2， 不透明度 84%， 裂断长为 8.0km， 白度为 26<¾ISO， 横向耐折度为 22 次， 撕裂度为 229mN。
[0097] 实施例 26: —种竹纤维纸浆制备的胶版印刷纸， 其制备方法包括以下步骤： [0098] 采用上述实施 1-5制备的竹纤维纸浆， 将上述纤维纸浆在双圆盘磨浆机种进 行打浆， 其打浆浓度为 5%， 打浆压力为 0.2MPa， 打浆电流为 35A， 打浆之后所 得到原色竹浆打浆度 32°SR， 打浆湿重为 2.1g。 将打浆后的浆料均匀混合后进行 抄造， 得到所述的色胶版印刷纸。 所述的抄造包括将上述打浆后所得到的成浆 进行抄造， 所述的抄造在长网多缸纸机中进行， 经过抄造之后得到本发明所述 的色胶版印刷纸。 所述的原色胶版印刷纸定量为 69.0g/m 2， 不透明度 89%， 裂断 长为 4.8km， 白度为 24%ISO， 横向耐折度为 30次， 撕裂度为 290mN。

Claims

权利要求书
[权利要求 1] 一种竹纤维纸浆， 其特征在于， 所述纸浆的白度为 20〜40% ISO， 抗张指数≥7.9^111^， 耐折度为 15〜200次， 裂断长为 5〜10km， 灰分≤1% ' 撕裂度为 200〜650mN， 打浆度为 10〜25°SR。
[权利要求 2] 如权利要求 1所述的一种竹纤维纸浆的制备方法， 其特征在于， 它 包括以下步骤：
51.原料碎解： 选取竹类纤维为原料， 将原料干法碎解成长度为 2 〜4cm的纤维粉；
52.蒸煮： 将纤维粉和蒸煮液按 1:2.5〜4的料液比混合均匀后进行 蒸煮处理， 控制温度在 120〜135°C保温 60〜80min， 得硬度为高锰 酸钾值 70〜90的高硬度浆； 其中， 所述蒸煮液为 10〜17%的 KOH
53.疏解： 浆上述高硬度浆送入高浓磨浆机中进行疏解， 疏解吋间 为 25〜35min;
54.磨浆： 用稀黑液稀释疏解后的竹浆至浓度 5〜10%， 将稀释浆料 进行磨浆， 得到打浆度为 10〜20°SR的浆料；
55.筛选和洗涤： 将磨浆后的浆料进行筛选， 筛选后的浆料调整浆 浓度至 10〜12%， 送入真空洗浆机中进行洗涤， 经洗涤得竹纤维 纸浆。
[权利要求 3] 如权利要求 2所述的一种竹纤维纸浆的制备方法， 其特征在于， 所 述竹类纤维原料包括毛竹、 黄竹、 慈竹、 水竹、 白夹竹、 西风竹 一种或多种的组合。
[权利要求 4] 如权利要求 2所述的一种竹纤维纸浆的制备方法， 其特征在于， 步 骤 S2中蒸煮用的仪器为间歇式球星蒸煮器、 连续蒸煮器或立式蒸 煮锅。
[权利要求 5] 如权利要求 4所述的一种竹纤维纸浆的制备方法， 其特征在于， 使 用间歇式球星蒸煮器或连续蒸煮器吋， 蒸煮的具体操作为： 将纤 维粉和蒸煮液加入间歇式球星蒸煮器或连续蒸煮器中， 通入蒸汽 加热升温至 120〜135°C， 升温、 小放气， 保温 60〜80min; 使用立 式蒸煮锅吋， 蒸煮的具体操作为： 将纤维粉由热黑液通过装锅器 装入蒸煮锅中， 当装锅满后关闭锅盖， 往蒸煮锅中补充温度为 100 〜110°C蒸煮液， 同吋排出锅内的空气并升压至 0.2〜0.25MPa， 蒸 煮液升温至 120〜135°C， 升温、 保温和置换 60〜80min， 最后用输 送螺旋将浆送到喷放锅。
[权利要求 6] 如权利要求 2所述的一种竹纤维纸浆的制备方法， 其特征在于， 蒸 煮前还包括用蒸煮液对纤维粉进行浸泡的处理步骤， 其浸泡吋间 为 50〜70min， 浸泡液温度为 85〜90°C。
[权利要求 7] 如权利要求 1所述的竹纤维纸浆在制备生活用纸中的应用。
[权利要求 8] 如权利要求 1所述的竹纤维纸浆制备的本色生活用纸原纸， 其特征 在于， 所述本色生活用纸原纸裂断长为 5.95〜8.0km， 横向耐折度 为 98〜200次， 横向撕裂度为 3.6〜600mN， 横向吸液高度 50〜100 mm/100s , 纵向湿抗张强度为 27〜55
N/m， 抗张指数为 8.6〜10.8N*m/g， 白度为 23〜25<¾， 亮度为 23〜3
1%。
PCT/CN2014/091225 2014-07-24 2014-11-15 一种本色竹纤维纸浆、其制备方法及其制备的本色生活用纸原纸 WO2016011736A1 (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112211016A (zh) * 2020-10-15 2021-01-12 福建省尤溪永丰茂纸业有限公司 一种本色卫生纸的加工工艺
CN114875706A (zh) * 2022-04-02 2022-08-09 浙江凯恩新材料有限公司 一种高性能一体机热敏版纸原纸、生产工艺和制备得到的热敏版纸

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1206761A (zh) * 1997-07-26 1999-02-03 崔安平 氢氧化钾法草浆造纸工艺
WO2007004757A1 (en) * 2005-06-30 2007-01-11 Kwon-Hyok Lee Process for producing pulp utilizing bamboo and pulp and papers produced using the same
CN101573490A (zh) * 2006-12-23 2009-11-04 沃依特专利有限责任公司 制备薄棉纸的方法
CN101748633A (zh) * 2008-12-19 2010-06-23 北京英力和泓新材料技术有限公司 纤维素提取新工艺
CN102337687A (zh) * 2010-07-15 2012-02-01 北京英力和泓新材料技术有限公司 一种从植物体中高得率获得高性能纤维的制浆新工艺
CN103374861A (zh) * 2013-08-12 2013-10-30 夹江汇丰纸业有限公司 一种环保、健康的生活用纸生产工艺
CN104141255A (zh) * 2014-07-24 2014-11-12 四川省西龙生物质材料科技有限公司 一种竹纤维制备的纸浆、其制备方法及其制成的纸制品

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1206761A (zh) * 1997-07-26 1999-02-03 崔安平 氢氧化钾法草浆造纸工艺
WO2007004757A1 (en) * 2005-06-30 2007-01-11 Kwon-Hyok Lee Process for producing pulp utilizing bamboo and pulp and papers produced using the same
CN101573490A (zh) * 2006-12-23 2009-11-04 沃依特专利有限责任公司 制备薄棉纸的方法
CN101748633A (zh) * 2008-12-19 2010-06-23 北京英力和泓新材料技术有限公司 纤维素提取新工艺
CN102337687A (zh) * 2010-07-15 2012-02-01 北京英力和泓新材料技术有限公司 一种从植物体中高得率获得高性能纤维的制浆新工艺
CN103374861A (zh) * 2013-08-12 2013-10-30 夹江汇丰纸业有限公司 一种环保、健康的生活用纸生产工艺
CN104141255A (zh) * 2014-07-24 2014-11-12 四川省西龙生物质材料科技有限公司 一种竹纤维制备的纸浆、其制备方法及其制成的纸制品

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112211016A (zh) * 2020-10-15 2021-01-12 福建省尤溪永丰茂纸业有限公司 一种本色卫生纸的加工工艺
CN114875706A (zh) * 2022-04-02 2022-08-09 浙江凯恩新材料有限公司 一种高性能一体机热敏版纸原纸、生产工艺和制备得到的热敏版纸

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