阅读说明：本技术 一种防油淋膜原纸的制造方法 (A kind of manufacturing method of grease proofing film coated base paper ) 是由 李丹 刘成良 刘春景 吴恒 周金涛 朱宏伟 史梦华 姜云 于 2019-08-08 设计创作，主要内容包括：本发明公布了一种防油淋膜原纸的制造方法,它包括以下步骤：将针叶木片和阔叶木片先混合再制浆、打浆、配浆及辅料加入、湿纸抄造、前干燥、表面施胶、后干燥；所述制浆使用微漂制浆技术；所述打浆为锥型磨磨浆工艺；所述表面施胶为采用膜转移施胶压榨机,且表面施胶剂为施胶淀粉+石蜡乳液+防油剂。本发明通过对木片种类的选择、制浆工艺摸索、打浆工艺和浆内添加的功能化学助剂等进行研究,研究最新的防水防油表面施胶配方和技术,采用膜转移表面施胶处理,制造出合格的防油淋膜原纸,较好地解决了食品包装对纸张防水防油性能要求。(The invention discloses a kind of manufacturing method of grease proofing film coated base paper, needle wood chip and broad-leaved wood chip the following steps are included: is first mixed that repulping, mashing, with slurry and auxiliary material is added, l Water Paper is manufactured paper with pulp, preceding drying, top sizing, rear dry by it；The slurrying uses micro- drift pulping technique；The mashing is tapered mill refining process；The top sizing is using film transfer size presser, and Cypres are size-press starch+paraffin wax emulsions+oil-proofing agent.The present invention is groped by the selection to wood chip type, pulping process, functionalized chemical auxiliary agent of addition etc. is studied in beating process and slurry, study newest waterproof and oilproof top sizing formula and technology, it is handled using film transfer top sizing, qualified grease proofing film coated base paper is produced, preferably solves food packaging to the requirement of paper waterproof and oilproof performance.)

1. a kind of manufacturing method of grease proofing film coated base paper, which is characterized in that it is the following steps are included: by needle wood chip and leaf wood Piece first mixes that repulping, mashing, with slurry and auxiliary material is added, l Water Paper is manufactured paper with pulp, preceding drying, top sizing, rear dry；The slurrying makes With micro- drift pulping technique；The mashing is tapered mill refining process；The absolute dry pulp dosage of auxiliary material are as follows: (a) rosin sizing agent Weight ratio 2.0~4.0%, (b) aluminum sulfate weight ratio 2.0~4.0%, (c) drying strengthening agent weight ratio 1.3~1.5%, (d) wet Strong agent weight ratio 1.0~2.0%；The top sizing is using film transfer size presser, and Cypres are that sizing is formed sediment Powder+paraffin wax emulsions+oil-proofing agent.

2. a kind of manufacturing method of grease proofing film coated base paper according to claim 1, which is characterized in that the slurry of the slurrying Proportion is with the wood chip weight ratio meter before mixing for 45 ± 2% wealthy hardwood chips: 55 ± 2% coastal pine sheets.

3. a kind of manufacturing method of grease proofing film coated base paper according to claim 1, which is characterized in that the slurry of the mashing Beating degree be 28~30oSR, 10~14 grams of weight in wet base.

4. a kind of manufacturing method of grease proofing film coated base paper according to claim 1, which is characterized in that the top sizing Concentration control is glued 8~10%, resin added is in 1.0~3.0g/m²；Size-press starch dosage is controlled in 15-30Kg/ tons of paper；Stone Wax emulsion dosage is controlled in 10-15Kg/ tons of paper；Oil-proofing agent dosage is controlled in 10-15Kg/ tons of paper；Gauge stick pressure 100KPa；It applies Page tension 220N/m before glue portion², page tension 200N/m behind sizing portion²。

5. a kind of manufacturing method of grease proofing film coated base paper according to claim 1, which is characterized in that the top sizing Boiling method is to be separately added into paraffin wax emulsions after the completion of preparation first by size-press starch according to normal tanning technique dissolution and preparation And oil-proofing agent, stirring 10 minutes put, ultimate density 10% or so, it is ensured that the sizing of per ton paper stand-by to storage barrel to uniformly mixed Starch dosage is controlled in 15-30Kg/ tons of paper.

6. a kind of manufacturing method of grease proofing film coated base paper according to claim 5, which is characterized in that the paraffin wax emulsions are used Amount control is in 10-15Kg/ tons of paper；Oil-proofing agent dosage is controlled in 10-15Kg/ tons of paper.

Technical field

The present invention relates to field of papermaking, more particularly, to a kind of manufacturing method of grease proofing film coated base paper.

Background technique

Leaching membrane paper refers to that using body paper as substrate, single or double applies PE film post-processing forming, printing, is mainly used for fruit packet The packaging industries such as dress, food packaging, plaster packaging and industrial packaging.Leaching membrane paper is a kind of important wrapping paper, since people are raw The flat raising of running water, it is also higher and higher to the packaging demand of convenient food and beverage.

Film coated base paper is a kind of paper dedicated for lamination, it is desirable that surfacing, good toughness have high-stiffness and highly resistance Water degree, waterproof, moisture-proof, oil preventing performance is good.Especially down-stream enterprise to the printability and Yi work performance of film coated base paper propose compared with High requirement.Film coated base paper had both faced the extraordinary market opportunity in China, while being also required in terms of producing with application technology It further increases.

Grease proofing film coated base paper is a kind of film coated base paper with oil-resistant function, is mainly used for food packaging.It is wanted according to using It asks, it is needed with the performances such as waterproof, moisture-proof, grease proofing, and paper and production process should meet food hygiene package paper It is required that.The fiber raw material of production leaching membrane paper cannot have fluorescent material, and brightening agent, auxiliary material/add cannot be used when modulating paper stock Add agent nontoxicity and production environment there will be mosquito proof measure.

Grease proofing film coated base paper requires evenness good, and paper is not allowed have the paper defects such as sand grains, hole, dead folding.Grease proofing lamination is former Paper key index is moisture, tightness, smoothness, water imbibition, transversal stretching rate, stratification forces, permeation-proof oiliness energy etc..

The present invention groped by selection to wood chip type, different weight than wood chip pulping process for mixed, beating process and The functionalized chemical auxiliary agent etc. added in slurry is studied, and newest waterproof and oilproof top sizing formula and technology is studied, using film Transitional surface sizing processing executes referring to related paper machine parameter, produces qualified grease proofing film coated base paper, preferably solve Company's profitability is optimized product structure to company and promoted to food packaging with important meaning to the requirement of paper waterproof and oilproof performance Justice.

Summary of the invention

The object of the present invention is to provide a kind of manufacturing methods of grease proofing film coated base paper, use 100% wood pulp for raw materials for production, Stiffness is high, stratification forces are big, smoothness is high, and the performances such as waterproof, moisture-proof, grease proofing are good, is free of fluorescent whitening agent, without being harmful to the human body Chemical substance, meet national health and international food sanitary standard, fully meet food packaging requirement.

In order to achieve the above object, the technical solution adopted by the present invention is that: a kind of manufacturing method of grease proofing film coated base paper, it is wrapped It includes following steps: needle wood chip and broad-leaved wood chip first mixes to repulping, mashing, with slurry and auxiliary material is added, l Water Paper is manufactured paper with pulp, preceding dry Dry, top sizing, rear drying；The slurrying uses micro- drift pulping technique；The mashing is tapered mill refining process；The auxiliary material Absolute dry pulp dosage are as follows: (a) rosin sizing agent weight ratio 2.0~4.0%, (b) aluminum sulfate weight ratio 2.0~4.0%, (c) Drying strengthening agent weight ratio 1.3~1.5%, (d) wet strength agent weight ratio 1.0~2.0%；The top sizing is to be glued using film transfer Squeezer, and Cypres are size-press starch+paraffin wax emulsions+oil-proofing agent.

Further, the wet end furnish of the slurrying is with the wood chip weight ratio meter before mixing for 45 ± 2% wealthy hardwood chips: 55 ± 2% coastal pine sheet.

Further, the slurry pulping degree of the mashing be 28~30oSR, 10~14 grams of weight in wet base.

Further, the sizing concentration of the top sizing is controlled 8~10%, and resin added is in 1.0~3.0g/m²；It applies Amylopectin dosage is controlled in 15-30Kg/ tons of paper；Paraffin wax emulsions dosage is controlled in 10-15Kg/ tons of paper；The control of oil-proofing agent dosage exists 10-15Kg/ tons of paper；Gauge stick pressure 100KPa；Page tension 220N/m before sizing portion², page tension 200N/ behind sizing portion m²。

Further, the boiling method of the top sizing is first by size-press starch according to normal tanning technique dissolution and system It is standby, be separately added into paraffin wax emulsions and oil-proofing agent after the completion of preparation, stirring 10 minutes to be uniformly mixed put it is stand-by to storage barrel, most Final concentration 10% or so, it is ensured that the size-press starch dosage of paper per ton is controlled in 15-30Kg/ tons of paper.

Further, the paraffin wax emulsions dosage control is in 10-15Kg/ tons of paper；Oil-proofing agent dosage is controlled in 10-15Kg/ Ton paper.

Beneficial effects of the present invention:

1, it from raw material selection and after formula starts with, takes first mixed raw material, then takes micro- drift new pulping process technology, pass through Tapered mill refining process, specifically include research raw material (wood chip) structure, by wealthy hardwood chip and coastal pine sheet in feed bin into The abundant physical agitation mixing of row.It is matched is with many experiments room research of wood chip formula and handsheet qualitative data detection and analysis result Foundation, it is final to determine that optimum formula is 45 ± 2% wealthy hardwood chips: 55 ± 2% coastal pine sheets (weight ratio).

2, slurrying and beating process are studied: the particularity required according to paper quality, further investigate mixed wood boiling and Pulping bleaching technique (uses H₂O₂ISO whiteness is slurried in 22-24 degree in bleaching technology, control)；By laboratory slurry boiling and beat Sizing process research determines reasonable mashing state modulator range (10-14 grams of weight in wet base, beating degree 28-300SR), and last handsheet goes out Pattern qualitative data is all very good.

3, grease proofing film coated base paper process for treating surface is studied, using size-press starch+paraffin wax emulsions+oil-proofing agent top sizing； Concentration control is glued 8~10%, resin added is in 1.0~3.0g/m²；Size-press starch dosage is controlled in 15-30kg/ tons of paper；Paraffin Lotion dosage is controlled in 10-15kg/ tons of paper；Oil-proofing agent dosage is controlled in 10-15kg/ tons of paper；Preferably solves food packaging To the requirement of paper waterproof and oilproof performance.

4, there is good grease proofing effect to guarantee that true qualities film coated base paper is (grease proofing), acid sizing carried out using gum rosin, Hygroscopicity value is controlled in 23.0 ± 2.0 g/m²。

Specific embodiment

Explaination further is made to the present invention by the following examples.