WO2019080694A1 - 一种可降解环保抗菌餐具及其制备方法 - Google Patents

一种可降解环保抗菌餐具及其制备方法

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Publication number
WO2019080694A1
WO2019080694A1 PCT/CN2018/108770 CN2018108770W WO2019080694A1 WO 2019080694 A1 WO2019080694 A1 WO 2019080694A1 CN 2018108770 W CN2018108770 W CN 2018108770W WO 2019080694 A1 WO2019080694 A1 WO 2019080694A1
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WIPO (PCT)
Prior art keywords
tableware
starch
environmentally
friendly
dinnerware
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Application number
PCT/CN2018/108770
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English (en)
French (fr)
Inventor
甄坤华
Original Assignee
伍泽明
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Publication date
Application filed by 伍泽明 filed Critical 伍泽明
Publication of WO2019080694A1 publication Critical patent/WO2019080694A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • A47G19/02—Plates, dishes or the like
    • A47G19/03—Plates, dishes or the like for using only once, e.g. made of paper
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J5/00—Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch-moulds

Definitions

  • the invention relates to a disposable tableware, in particular to a degradable environmentally-friendly antibacterial tableware and a preparation method thereof.
  • Disposable tableware can be found everywhere in our lives and is used very frequently. Such as ordinary families, restaurants, hotels, supermarkets and other places have a large number of uses. Disposable tableware is convenient and hygienic and is an indispensable part of our life, but it is usually made of plastic materials that are difficult to degrade or made of wood pulp. Tableware made of plastic is not environmentally friendly and has poor antibacterial properties. The tableware is costly and environmentally unfriendly. It is well known that silver can be used as a non-polar antibacterial agent, but if silver is used as a disposable tableware, the cost is very high and does not meet market demand.
  • the present invention provides a degradable environmentally-friendly antibacterial tableware and a preparation method thereof.
  • the technical scheme adopted by the invention is: a degradable environmentally-friendly antibacterial tableware comprising the following raw materials by weight: bamboo fiber 25-40; starch 40-50; thermosetting resin 5-10; oil repellent 5-8; Waterproofing agent 3-6, nano silver 0.1-0.2.
  • starch is one of or a mixed starch of cereal or potato starch.
  • oil repellent is a cationic paper fluorocarbon oil repellent.
  • a method for preparing a degradable environmentally-friendly antibacterial tableware comprises the following steps:
  • the mixed slurry is quantitatively supplied to the pulp molding device, the mixed slurry in the pulp molding device is absorbed by the vacuum pump, and the mixed slurry after the water absorption is adsorbed on the mesh mold of the pulp molding device, and Spraying the nano silver ion solution, and then placing the net mold into the setting machine, and pressing and drying the mixed slurry at high temperature and high pressure through the upper mold and the lower mold of the setting machine to obtain the initial product;
  • the initial product is placed in a trimming die, and the excess corners are cut by a trimming device to obtain a finished tableware.
  • the bamboo fiber has a particle size of 50-80 mesh in the step a.
  • the stirring time in the step b is 20-30 minutes.
  • the setting press pressing temperature is 120-150 °C.
  • the setting press pressing time is 1.5-4 seconds.
  • the sterilization method in the step e is ultraviolet sterilization.
  • the invention utilizes bamboo and bamboo leaves as main raw materials, has low cost, wide raw materials, can be completely biodegraded, is environmentally friendly, can be processed into disposable tableware, specific packaging materials and the like, and is not like foamed tableware or plastic tableware. Causes white pollution.
  • nano silver is added as an antibacterial agent for tableware, and has a good antibacterial effect, which can effectively increase the food preservation time.
  • a degradable environmentally-friendly antibacterial tableware comprising the following parts by weight: bamboo fiber 25; starch 40; thermosetting resin 5; oil repellent 5; water repellent 3, nano silver 0.1.
  • the addition of nanosilver to the ingredients can have an antibacterial effect.
  • starch is one of or a mixed starch of cereal or potato starch. Specifically, corn starch, wheat starch, sweet potato starch, potato starch, and the like can be used.
  • oil repellent is a cationic paper fluorocarbon oil repellent.
  • a method for preparing a degradable environmentally-friendly antibacterial tableware comprises the following steps:
  • the mixed slurry is quantitatively supplied to the pulp molding device, the mixed slurry in the pulp molding device is absorbed by the vacuum pump, and the mixed slurry after the water absorption is adsorbed on the mesh mold of the pulp molding device, and Spraying the nano silver ion solution, and then placing the net mold into the setting machine, and pressing and drying the mixed slurry at high temperature and high pressure through the upper mold and the lower mold of the setting machine to obtain the initial product;
  • the initial product is placed in a trimming die, and the excess corners are cut by a trimming device to obtain a finished tableware.
  • the bamboo fiber powder particle size in the step a is 50 mesh.
  • the stirring time in the step b is 20 minutes.
  • the setting press temperature is 120 °C.
  • the setting press time is 1.5 seconds.
  • the sterilization method in the step e is ultraviolet sterilization.
  • a degradable environmentally-friendly antibacterial tableware comprising the following parts by weight: bamboo fiber 30; starch 45; thermosetting resin 8; oil repellent 6; water repellent 5, nano silver 0.15
  • starch is one of or a mixed starch of cereal or potato starch. Specifically, corn starch, wheat starch, sweet potato starch, potato starch, and the like can be used.
  • oil repellent is a cationic paper fluorocarbon oil repellent.
  • a method for preparing a degradable environmentally-friendly antibacterial tableware comprises the following steps:
  • the mixed slurry is quantitatively supplied to the pulp molding device, the mixed slurry in the pulp molding device is absorbed by the vacuum pump, and the mixed slurry after the water absorption is adsorbed on the mesh mold of the pulp molding device, and Spraying the nano silver ion solution, and then placing the net mold into the setting machine, and pressing and drying the mixed slurry at high temperature and high pressure through the upper mold and the lower mold of the setting machine to obtain the initial product;
  • the initial product is placed in a trimming die, and the excess corners are cut by a trimming device to obtain a finished tableware.
  • the bamboo fiber powder particle size in the step a is 60 mesh.
  • the stirring time in the step b is 26 minutes.
  • the setting press temperature is 140 °C.
  • the setting press time is 3 seconds.
  • the sterilization method in the step e is ultraviolet sterilization.
  • a degradable environmentally-friendly antibacterial tableware comprising the following parts by weight: bamboo fiber 40; starch 50; thermosetting resin 10; oil repellent 8; water repellent 6, nano silver 0.2.
  • starch is one of or a mixed starch of cereal or potato starch. Specifically, corn starch, wheat starch, sweet potato starch, potato starch, and the like can be used.
  • oil repellent is a cationic paper fluorocarbon oil repellent.
  • a method for preparing a degradable environmentally-friendly antibacterial tableware comprises the following steps:
  • the mixed slurry is quantitatively supplied to the pulp molding device, the mixed slurry in the pulp molding device is absorbed by the vacuum pump, and the mixed slurry after the water absorption is adsorbed on the mesh mold of the pulp molding device, and Spraying the nano silver ion solution, and then placing the net mold into the setting machine, and pressing and drying the mixed slurry at high temperature and high pressure through the upper mold and the lower mold of the setting machine to obtain the initial product;
  • the initial product is placed in a trimming die, and the excess corners are cut by a trimming device to obtain a finished tableware.
  • the bamboo fiber powder particle size in the step a is 80 mesh.
  • the stirring time in the step b is 30 minutes.
  • the setting press temperature is 150 °C.
  • the setting press time is 4 seconds.
  • the sterilization method in the step e is ultraviolet sterilization.
  • the invention utilizes bamboo and bamboo leaves as main raw materials, has low cost, wide raw materials, can be completely biodegraded, is environmentally friendly, can be processed into disposable tableware, specific packaging materials and the like, and is not like foamed tableware or plastic tableware. Causes white pollution.
  • nano silver is added as an antibacterial agent for tableware, and has a good antibacterial effect, which can effectively increase the food preservation time.
  • the process fully realizes fully automated production operation, and can produce a variety of tableware products on the same production line.
  • the whole production system is energy-saving and environmentally friendly, and the product has good antibacterial, antibacterial and bactericidal properties, and has high practical production and application value.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Food Science & Technology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

一种可降解环保抗菌餐具，包括以下重量份数的原料：竹纤维25-40；淀粉40-50；热固树脂5-10；防油剂5-8；防水剂3-6，纳米银0.1-0.2。其利用竹子和竹叶为主要原料，成本低廉，原料广泛，可以完全生物降解，对环境友好，可以加工成一次性餐具，特定包装材料等产品，不会像发泡餐具或者是塑料餐具那样造成白色污染。并在制作过程中加入纳米银作为餐具的抗菌剂，而且具有很好的抗菌效果，可以有效增加食物保存时间。

Description

一种可降解环保抗菌餐具及其制备方法 技术领域
本发明涉及一次性餐具，尤其涉及一种可降解环保抗菌餐具及其制备方法。
背景技术
一次性餐具在我们的生活中随处可见，使用十分频繁。如普通家庭、饭店、旅馆、超市等地方均有大量使用。一次性餐具方便、卫生，是我们生活不可或缺的一部分，但是其一般用难以降解的塑料材质或者用树木纸浆做成，用塑料制成的餐具不环保且抗菌性能较差，用树木纸浆制成的餐具成本高，而且对环境不友好。众所周知，银可以作为无极抗菌剂使用，但是如果直接用银做成一次性餐具，成本非常高，不符合市场需求。
发明内容
为了克服现有技术的不足，本发明提供一种可降解环保抗菌餐具及其制备方法。
本发明所采用的技术方案是：一种可降解环保抗菌餐具，包括以下重量份数的原料：竹纤维25-40；淀粉40-50；热固树脂5-10；防油剂5-8；防水剂3-6，纳米银0.1-0.2。
进一步，所述淀粉为谷物类或薯类淀粉的其中一种或是两者的混合淀粉。
进一步，所述防油剂是阳离子纸张氟碳防油剂。
一种可降解环保抗菌餐具制备方法，包括如下步骤：
a：将竹子和竹叶切断成若干段，干燥至含水量低于10％，然后放入粉碎机中将渣打碎，再放入精磨机中研磨粉碎，使长纤维断裂，制得竹纤维；
b:在竹纤维中加入其重量6-8倍的清水，并加入淀粉、热固树脂、防油剂、防水剂后高速搅拌混合均匀，制得混合浆料；
c：将混合浆料向纸浆塑模装置定量供浆，通过真空泵对纸浆塑模装置内的混合浆料进行吸水，并使吸水后的混合浆料吸附在纸浆塑模装置的网模上，并喷涂纳米银离子溶液，再将网模放置至定型机中，通过定型机上模和下模在高温高压对混合浆料进行压制定型烘干，得到初产品；
d：将初产品放置在切边模具中，通过切边装置切除多余边角，制得成品餐具，
e：将成品餐具消毒杀菌后包装，得到最终产品。
进一步，所述步骤a中竹纤维颗粒度为50-80目。
进一步，所述步骤b中搅拌时间为20-30分钟。
进一步，所述步骤c中定型机压制温度为120-150℃。
进一步，所述步骤c中定型机压制时间为1.5-4秒。
进一步，所述步骤e中消毒杀菌方法为紫外线杀菌。
本发明利用竹子和竹叶为主要原料，成本低廉，原料广泛，可以完全生物降解，对环境友好，可以加工成一次性餐具，特定包装材料等产品，不会像发泡餐具或者是塑料餐具那样造成白色污染。并在制作过程中加入纳米银作为餐具的抗菌剂，而且具有很好的抗菌效果，可以有效增加食物保存时间。
具体实施方式
实施例一
一种可降解环保抗菌餐具，包括以下重量份数的原料：竹纤维25；淀粉40；热固树脂5；防油剂5；防水剂3，纳米银0.1。在成分中加入纳米银可以起到抗菌作用。
进一步，所述淀粉为谷物类或薯类淀粉的其中一种或是两者的混合淀粉。具体可以使玉米淀粉、小麦淀粉、红薯淀粉，土豆淀粉等等。
进一步，所述防油剂是阳离子纸张氟碳防油剂。
一种可降解环保抗菌餐具制备方法，包括如下步骤：
a：将竹子和竹叶切断成若干段，干燥至含水量低于10％，然后放入粉碎机中将渣打碎，再放入精磨机中研磨粉碎，使长纤维断裂，制得竹纤维；
b:在竹纤维中加入其重量6-8倍的清水，并加入淀粉、热固树脂、防油剂、防水剂后高速搅拌混合均匀，制得混合浆料；
c：将混合浆料向纸浆塑模装置定量供浆，通过真空泵对纸浆塑模装置内的混合浆料进行吸水，并使吸水后的混合浆料吸附在纸浆塑模装置的网模上，并喷涂纳米银离子溶液，再将网模放置至定型机中，通过定型机上模和下模在高温高压对混合浆料进行压制定型烘干，得到初产品；
d：将初产品放置在切边模具中，通过切边装置切除多余边角，制得成品餐具，
e：将成品餐具消毒杀菌后包装，得到最终产品。
进一步，所述步骤a中竹纤维粉末颗粒度为50目。
进一步，所述步骤b中搅拌时间为20分钟。
进一步，所述步骤c中定型机压制温度为120℃。
进一步，所述步骤c中定型机压制时间为1.5秒。
进一步，所述步骤e中消毒杀菌方法为紫外线杀菌。
实施例二
一种可降解环保抗菌餐具，包括以下重量份数的原料：竹纤维30；淀粉45；热固树脂8；防油剂6；防水剂5，纳米银0.15
进一步，所述淀粉为谷物类或薯类淀粉的其中一种或是两者的混合淀粉。具体可以使玉米淀粉、小麦淀粉、红薯淀粉，土豆淀粉等等。
进一步，所述防油剂是阳离子纸张氟碳防油剂。
一种可降解环保抗菌餐具制备方法，包括如下步骤：
a：将竹子和竹叶切断成若干段，干燥至含水量低于10％，然后放入粉碎机中将渣打碎，再放入精磨机中研磨粉碎，使长纤维断裂，制得竹纤维；
b:在竹纤维中加入其重量6-8倍的清水，并加入淀粉、热固树脂、防油剂、防水剂后高速搅拌混合均匀，制得混合浆料；
c：将混合浆料向纸浆塑模装置定量供浆，通过真空泵对纸浆塑模装置内的混合浆料进行吸水，并使吸水后的混合浆料吸附在纸浆塑模装置的网模上，并喷涂纳米银离子溶液，再将网模放置至定型机中，通过定型机上模和下模在高温高压对混合浆料进行压制定型烘干，得到初产品；
d：将初产品放置在切边模具中，通过切边装置切除多余边角，制得成品餐具，
e：将成品餐具消毒杀菌后包装，得到最终产品。
进一步，所述步骤a中竹纤维粉末颗粒度为60目。
进一步，所述步骤b中搅拌时间为26分钟。
进一步，所述步骤c中定型机压制温度为140℃。
进一步，所述步骤c中定型机压制时间为3秒。
进一步，所述步骤e中消毒杀菌方法为紫外线杀菌。
实施例三
一种可降解环保抗菌餐具，包括以下重量份数的原料：竹纤维40；淀粉50；热固树脂10；防油剂8；防水剂6，纳米银0.2。
进一步，所述淀粉为谷物类或薯类淀粉的其中一种或是两者的混合淀粉。具体可以使玉米淀粉、小麦淀粉、红薯淀粉，土豆淀粉等等。
进一步，所述防油剂是阳离子纸张氟碳防油剂。
一种可降解环保抗菌餐具制备方法，包括如下步骤：
a：将竹子和竹叶切断成若干段，干燥至含水量低于10％，然后放入粉碎机中将渣打碎，再放入精磨机中研磨粉碎，使长纤维断裂，制得竹纤维；
b:在竹纤维中加入其重量6-8倍的清水，并加入淀粉、热固树脂、防油剂、防水剂后高速搅拌混合均匀，制得混合浆料；
c：将混合浆料向纸浆塑模装置定量供浆，通过真空泵对纸浆塑模装置内的混合浆料进行吸水，并使吸水后的混合浆料吸附在纸浆塑模装置的网模上，并喷涂纳米银离子溶液，再将网模放置至定型机中，通过定型机上模和下模在高温高压对混合浆料进行压制定型烘干，得到初产品；
d：将初产品放置在切边模具中，通过切边装置切除多余边角，制得成品餐具，
e：将成品餐具消毒杀菌后包装，得到最终产品。
进一步，所述步骤a中竹纤维粉末颗粒度为80目。
进一步，所述步骤b中搅拌时间为30分钟。
进一步，所述步骤c中定型机压制温度为150℃。
进一步，所述步骤c中定型机压制时间为4秒。
进一步，所述步骤e中消毒杀菌方法为紫外线杀菌。
本发明利用竹子和竹叶为主要原料，成本低廉，原料广泛，可以完全生物降解，对环境友好，可以加工成一次性餐具，特定包装材料等产品，不会像发泡餐具或者是塑料餐具那样造成白色污染。并在制作过程中加入纳米银作为餐具的抗菌剂，而且具有很好的抗菌效果，可以有效增加食物保存时间。
本工艺流程完全实现全自动化生产操作，而且在同一条生产线上可生产出多种餐具制品，整个生产体系节能环保，产品抗菌、抑菌及杀菌性好，具有很高的实际生产应用价值。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。

Claims (9)

  1. 一种可降解环保抗菌餐具，其特征在于：包括以下重量份数的原料：竹纤维25-40；淀粉40-50；热固树脂5-10；防油剂5-8；防水剂3-6，纳米银0.1-0.2。
  2. 根据权利要求1所述的一种环保餐具，其特征在于：所述淀粉为谷物类或薯类淀粉的其中一种或是两者的混合淀粉。
  3. 根据权利要求1所述的一种可降解环保抗菌餐具，其特征在于：所述防油剂是阳离子纸张氟碳防油剂。
  4. 一种可降解环保抗菌餐具制备方法，其特征在于：包括如下步骤：
    a：将竹子和竹叶切断成若干段，干燥至含水量低于10％，然后放入粉碎机中将渣打碎，再放入精磨机中研磨粉碎，使长纤维断裂，制得竹纤维；
    b:在竹纤维中加入其重量6-8倍的清水，并加入淀粉、热固树脂、防油剂、防水剂后高速搅拌混合均匀，制得混合浆料；
    c：将混合浆料向纸浆塑模装置定量供浆，通过真空泵对纸浆塑模装置内的混合浆料进行吸水，并使吸水后的混合浆料吸附在纸浆塑模装置的网模上，并喷涂纳米银离子溶液，再将网模放置至定型机中，通过定型机上模和下模在高温高压对混合浆料进行压制定型烘干，得到初产品；
    d：将初产品放置在切边模具中，通过切边装置切除多余边角，制得成品餐具，
    e：将成品餐具消毒杀菌后包装，得到最终产品。
  5. 根据权利要求4所述的一种可降解环保抗菌餐具制备方法，其特征在于：所述步骤a中竹纤维颗粒度为50-80目。
  6. 根据权利要求4所述的一种可降解环保抗菌餐具制备方法，其特征在于：所述步骤b中搅拌时间为20-30分钟。
  7. 根据权利要求4所述的一种可降解环保抗菌餐具制备方法，其特征在于：所述步骤c中定型机压制温度为120-150℃。
  8. 根据权利要求4所述的一种可降解环保抗菌餐具制备方法，其特征在于：所述步骤c中定型机压制时间为1.5-4秒。
  9. 根据权利要求4所述的一种可降解环保抗菌餐具制备方法，其特征在于：所述步骤e中消毒杀菌方法为紫外线杀菌。
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