A preparation method of a biodegradable composite fiber glue-free hollow filter rod

A composite fiber and biodegradable technology, applied in fiber treatment, smoke oil filter element, food science, etc., can solve the problems of high production cost, unhealthy health, waste environmental pollution, etc., to eliminate harm to the human body and reduce production cost , excellent performance

Active Publication Date: 2021-12-14
恒天长江生物材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Diacetate cellulose filter rods have superior performance and are mainly used in high-end cigarettes. However, cellulose acetate is made of high-quality wood through pulping, cellulose extraction, dissolution, and dry spinning. The pollution in the entire production process is relatively serious, and a large amount of Consuming wood, destroying the ecological environment, and cellulose is not easy to degrade after acetic esterification, and its waste is likely to cause environmental pollution; compared with the comprehensive performance of polypropylene fiber filter rods and diacetate fiber filter rods, the defects are obvious, and its raw materials It is a petroleum-based plastic, and its use has been decreasing year by year in recent years, and the trend of being eliminated is a foregone conclusion
However, using this method is not only costly to produce, but also the harmful ingredients in the adhesive are harmful to the health of smokers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The polylactic acid sheath-core composite fiber tow for tobacco with a linear density of 15ktex and a linear density of 6.7dtex is selected. The melting point of PLA in the cortex layer is 125°C and the melting point of PLA in the core layer is 175°C. On the improved hollow filter rod forming unit, Open it until the unfolded width is 15cm, and pass through the hot and dry air section bong with a dry hot air temperature of 125°C and the bong in the cooling section in sequence, using forming paper with a specification of 26g / ㎡ and a width of 26.5mm, roll A glue-free hollow filter rod with a specification of 120mm×24.1mm×10mm was produced by molding, cooled and balanced at room temperature for 1 hour, and sampled and tested. The appearance of the filter rod was good, the cut surface was smooth, and all indicators met the requirements for cigarette use.

Embodiment 2

[0034] Select polylactic acid and polyglycolide skin-core structure composite fiber tows for cigarettes with a tow linear density of 15ktex and a monofilament linear density of 3.8dtex. On the rod forming unit, it is opened until the unfolded width is 16cm, and it passes through the dry hot air section bong and the cooling section bong with a dry hot air temperature of 170°C in sequence, and the rolled shape is 120mm×24.7mm The glue-free and paper-free hollow filter rod of ×10mm was cooled and balanced at room temperature for 1.5 hours, and the sample was tested. The appearance of the filter rod was good, the cut surface was smooth, and all indicators met the requirements for cigarette use.

Embodiment 3

[0036] A mixture of polylactic acid and polyadipate / butylene terephthalate with a linear density of tow of 10ktex and a linear density of monofilament of 5dtex is selected, and polylactic acid sheath-core composite fiber tow for smoking, in which the cortex is a mixture of PLA and PBAT The melting point is 140°C, and the melting point of core layer PLA is 180°C. On the improved hollow filter rod forming unit, it is opened to a width of 12cm, and then passed through the dry hot air section smoking gun with a dry hot air temperature of 140°C. In the cooling section, use forming paper with a specification of 26g / ㎡ and a width of 22.8mm to roll and mold to produce a hollow filter rod without glue with a specification of 100mm×20.4mm×9mm. Cool and balance at room temperature for 2 hours. Sampling and inspection showed that the appearance of the filter rod was good, the cut surface was smooth, and all indicators met the requirements for cigarette use.

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Abstract

The invention provides a method for preparing a biodegradable composite fiber glue-free hollow filter rod. The method includes the following steps: (1) Tow type selection: select a fully biodegradable composite fiber cigarette with a linear density of 8-15 ktex Use tow; (2) Opening: the tow is opened on a commercially available improved hollow filter rod forming unit; (3) Forming and cutting: the tow after opening is sequentially introduced into the dry hot air section of the smoking gun , cooling section bong, forming and cutting to produce a biodegradable fiber glue-free hollow filter rod, the filter rod can be rolled into shape without adding any plasticizer or adhesive, which reduces the production cost. Low cost, eliminates the harm of trace harmful substances in plasticizers or adhesives to the human body, and is safe and pollution-free.

Description

technical field [0001] The invention belongs to the field of preparation of hollow filter rods for cigarettes, and in particular relates to a preparation method of biodegradable composite fiber glue-free hollow filter rods. Background technique [0002] Cigarette filters play a great role in reducing coke and harm and improving the taste of cigarettes. They are an indispensable part of the cigarette production process. At present, the cigarette filter materials in the domestic market are mainly diacetate fiber tow and polypropylene fiber tow. Diacetate cellulose filter rods have superior performance and are mainly used in high-end cigarettes. However, cellulose acetate is made of high-quality wood through pulping, cellulose extraction, dissolution, and dry spinning. The pollution in the entire production process is relatively serious, and a large amount of Consuming wood, destroying the ecological environment, and cellulose is not easy to degrade after acetic esterification,...

Claims

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Application Information

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IPC IPC(8): A24D3/02A24D3/10A24D3/04D01D5/34
CPCA24D3/0204A24D3/0245A24D3/0254A24D3/10A24D3/04D01D5/34
Inventor 李振华王乐军李晔鲁士君顾雪明叶建文
Owner 恒天长江生物材料有限公司
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