KR100342366B1 - The methed of preparing a mastes sheet for instant noodle(ramyon) receptacle. - Google Patents

Abstract

The present invention relates to a method for producing a cup ramen container paper, the technical selection of the pulp from the internal additives and the surface size agent is not harmful to the human body and resistant to water barrier work when processing the ramen cup container round when rolling It is excellent in aptitude to prevent bursting, and in particular, by properly selecting the surface sizing agent, the cup can be strongly adhered to the surface of the paper during lamination processing with the base paper essential for the production of container paper and the thermoplastic synthetic film. It is to provide a method for producing a container base paper if the cup that greatly improved the heat adhesion affinity.

Description

The manufacturing method of the cup noodles container base paper {THE METHED OF PREPARING A MASTES SHEET FOR INSTANT NOODLE (RAMYON) RECEPTACLE.}

The present invention relates to a cup ramen container manufacturing method in more detail, in the production of paper, excellent barrier arithmetic or flange (Flange) aptitude, improve the heat adhesion of the laminate of poly ethylene film and non-toxic cup ramen It relates to the technical field of manufacturing the container base paper.

Conventionally used cup ramen containers are made of Schiropol as a raw material, which is problematic in recycling. Especially, due to the nature of the cup ramen, hot water should be poured into the container to swell the ramen and cooked at the same time. , Environmental hormone substances are dissolved in components such as foams, which are harmful to the human body, and are still controversial in the ramen industry and civic groups due to health problems.

Recently, due to such problems, attempts to solve the environmental hormone problem and the restriction of recycling by making a double cup structured cup made of paper have been well received, but the manufacturing process is often complicated.

If the cup is made of paper, the paper used in the container must be thick and firm, and function as a packaging container. The paper container is given the above function through internal addition and surface sizing in order to obtain barrier resistance, which is water resistant. In order to satisfy the formability in manufacturing, when the cup is formed using soft long fibers, it gives the processing aptitude to prevent bursting when the cup is rolled round, that is, it is a Flange quality and it is made of paper As it forms the container by preventing the penetration of water or general cup container or adhesion during its manufacture, the laminating treatment is necessary as thermoplastic synthetic resin film such as poly ethylene film, which requires strong adhesion between film and paper. Proper selection of the sizing agent provides a strong adhesive function, which is why So far as there is no harm to the human body excellent adhesion excellent cup moldability when laminated, and excellent water resistance cup will be in solving the techniques and methods of manufacturing the container sheet.

1 is a cup noodle container paper manufacturing apparatus according to the present invention

The present invention forms a layer of soft and porous structure that has a small change in the specification of the paper according to temperature and humidity, and has a low density and a good thickness and processability, and has a stiffness on the surface of the paper. A surface sizing agent composed of a cationizing agent, etc., which allows the styrene film to adhere well to the paper, forms a coating layer in a size press.

In other words, pulp, which is the main component of paper, also uses northern softwood species with long and soft characteristics, and the method of manufacturing pulp is also used for chlorine (Cl), a component that can harm humans. Use minimal TCF (total Chlorine Free) or ECF (Eliminated Chlorine Free) pulp.

The pre-treatment method of pulp is also made of fiber cutting and blending to make paper thick, soft and tough.The pigment is also used to adjust the surface and porosity of the paper by using a certain ratio, and the pigment used is also harmful to food. Use pigments of high whiteness without evaporation residues to meet the test specifications.

The inside of the paper is sized to have strong bonding between the fibers, and the fibers are settled by protonation treatment with a water-resistant agent so as to be resistant to moisture.

In this process, the paper is adjusted by adjusting the ion balance in the facility and the raw material system so that the paper can have a uniform water absorption resistance. Produces good paper with a uniform distribution.

Cup noodle presses the paper surface layer of the paper base paper with firmness, firmly adheres to the polyethylene film layer, and has excellent heat-sealing ability between the paper and the polyethylene layer. The coating solution contains the starch layer as its main component, and the paper surface layer is treated to improve the cup formability of the paper base if it is a cup by using an ammonium salt-based protonation agent and an excessive amount of surface size agent.

If the manufacturing method of the base of the instant noodles cup container or general cup container for satisfying the above conditions are as follows.

First, in the present invention, the pulp used for the cup noodle container paper is 30-70wt% of southern acid broadleaf pulp having a strong binding force to increase the thickness of the northern pulp 30-70wt%, while the fiber length is short and uniform. Mixed pulp is used and the above pulp uses TCF (Total Chlorine Free) or ECF (Eliminated Chlorine Free) pulp that minimizes chlorine.

In addition, the pigment (treatment) for adjusting the soft touch and surface properties and the porosity of the inside of the paper is 1-20% of clay or talc containing less evaporation residue with respect to the weight of the solid pulp. 1 to 5% of at least one starch selected from oxidized starch, cationic starch, and ethylenated starch, alkyl ketene dimer, alkenyl succinic anhydide, rosin soap, free rosin emulsion 0.2 to 6.0% of one or more size agents selected from among, 0.1 to 6.0% of the strength enhancer selected from epichlorohydrin, poly-thylene imine, alum and polyalu Polyalunium Chloride, at least one fixing agent selected from 0.2-8%, positive polyacrylamide (Cationic Poly acrylic Amide) is used as an internal additive size (pigment) agent is used as a surface sizing agent 0.0004 to 0.01 wt% of an isolubilizer selected from amano resins, glyoxalazines and metal ions based on 100% by weight of one pulp (based on solids), polyurethane and acrylonitrilem acrylic acid ester, 0.01 to 2 wt% of at least one polymerization sizing agent selected from copolymers of maleic anhydride and styrene methacrylate, and 0.01 to 3 wt% of at least one amphoteric selected from quaternary ammonium salts, calcium stearate, alum and PAC 0.01wt% or less of the dye decomposed in the human body is used.

The overall manufacturing method is described in relation to the papermaking apparatus with the above pulp raw materials, internal sizing agent, and surface sizing agent. The pulp, which is a main raw material, is dissolved in water from the pulp (1) and temporarily stored in the storage tank (2), and then the crusher (3). In order to give papermaking properties to pulp fibers, the fibers dissociated in water are mechanically cut and brushed, and then transferred to a mixed storage tank (4) where they are brushed and then the strength of the machine chest (5) is increased. Add positive starch or wet and dry intensifier, and add several sized ingredients, fixatives and water-absorbing resistance to the raw materials, and mix with white water to dilute the concentration from 4% to 0.8%. Impurities other than raw materials are removed from the cleaner 6 and the sealed screen 7 and supplied to the head box 8 of the paper machine. In this way, the data flowing into the head box (8) is ejected to the gold mesh portion (9) running continuously, dehydration proceeds to form a sheet (Sheet), the press pad (10) is transported and undertaking proceeds and then dry After contacting the rotating dryer cylinder of the part 11 to evaporate the moisture by the surface heat, and coating the surface sizing composition in the size press 12 to give the cup ramen container aptitude and finally drying the after-drying portion 13 It is wound around the winding unit 15 to obtain a base paper.

The basis weight of the base paper thus prepared is 200-400 g / m 2, and the thickness of the coating layer used for the surface treatment is in the range of 3-15 g / m 2 (1-5 μm thick), and preferably 8-10 g / m 2 (3). Μm) range.

The features of the cup ramen paper manufacturing method according to the present invention as above,

First: No ingredients harmful to the human body, no harmful ingredients and no environmental hormones

Second: special pulp selection, raw material pre-treatment and blending process to make the cup strong (Flange aptitude) so that it does not burst or deform when forming the cup by making soft and tough paper.

Third: Produced by protonation of the paper surface and inner layer so that the paper has laminating ability that can be adhered well to polyethylene during polyethylene laminating.

Fourth: It is manufactured with Heat Sea-ling ability that the polyethylene layer and paper can be firmly attached by heat when heat bonding after forming paper cup.

Fifth: Manufactured by adding various functional chemicals to have low water absorption and uniform water absorption area resistance

Sixth: It is manufactured to have the characteristics of the ring (Ring Crush) as a thick, solid food paper base paper.

In order to further embody the manufacturing method of the present invention, a ramen cup container base paper was prepared as in Example (1) by the apparatus using FIG.

Example (1)

To 100 wt% of mixed pulp of conifers and 60 wt% of hardwoods, 3% of emulsified starch as starch as internal additive (size), 1% by weight of zero alkyl ketene dimer, 2% by weight of Songji Soap, and epichlorohydrin as strength enhancer Hardening agent as a surface sizing agent with respect to 100% by weight of pulp (solid content) on the surface of dried paper by adding 3% by weight of polyaluminium chloride and 0.1% by weight of polyacrylamide to 0.5% by weight of 0.5% by weight and 1% by weight of PEI fixing agent. Rho amino resin 0.002wt%, glyoxal resin 0.003wt%, polymerized sizing agent of polyurethane, 0.1wt% of polyurethane, 0.5m of quaternary ammonium salt as amphoteric and 1wt% of calcium stearate A noodles cup container base paper having a weight of 8 g / m 2 of a 280 g / m 2 coating layer was obtained.

The cup base container according to the present invention first uses pulp that minimizes chlorine in the selection of pulp, and it is not harmful to the human body because it does not have harmful effects to internal sizing agents or surface sizing agents, and is formed by appropriately mixing tough long fibers with soft pulp. It has excellent frenzy properties for the surface of the paper, and it can be firmly adhered to the paper when it is laminated with polyetchene due to the positive treatment on the paper surface.The film can be firmly attached to the paper. It is a suitable base.

Claims (1)

In normal papermaking, To 100 wt% of mixed pulp of 30 to 70 wt% of softwood pulp and 30 to 70 wt% of hardwood pulp, 1 to 20 wt% of talc or white clay, 1 to 5 wt% of one or more starches selected from oxidized starch or amphoteric starch or etched starch, alkyl ketene dimer, succinic anhydride, rosin soap, glass rosin emulsion 0.2 to 6 wt% of at least one size agent selected from among 0.1 to 6 wt% of an abrasive enhancer selected from epichlorohydrin and polyethyleneimine, and 0.2 to 8 wt% of at least one fixer selected from alum and polyaluminum chloride , 0.05-0.2wt% amphoteric polyacrylamide was added to the papermaking solution to dry the papermaking sheet and to 100% by weight of the above mixed pulp on the dried paper surface. 0.0004 to 0.01 wt% of at least one curing agent selected from the above, copolymers of polyurethane or acrylonitrile acrylate, maleic anhydride, and styrene metaacrylate 0.01 to 2 wt% of at least one polymerization sizing agent selected from the above, quaternary ammonium salt, calcium stearate, alum, 0.01 to 3 wt% of a cationic agent selected from PAC, and a small amount of dye (0.01% or less). Cup noodles container manufacturing method characterized in that the coating layer is formed in