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Adjusting device for color polylactic acid fibers in cigarette filter rod process

A polylactic acid fiber and filter rod technology, applied in the directions of adding dyes in spinning solution, single-component polyester rayon, adding pigments in spinning solution, etc., can solve problems such as poor stability of lycopene

Active Publication Date: 2020-04-28
湖北金叶玉阳化纤有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there are 11 conjugated double bonds and 2 non-conjugated double bonds in the lycopene molecule, the stability of lycopene is relatively poor, and cis-trans isomerization and oxidative degradation can occur under certain conditions

Method used

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  • Adjusting device for color polylactic acid fibers in cigarette filter rod process
  • Adjusting device for color polylactic acid fibers in cigarette filter rod process
  • Adjusting device for color polylactic acid fibers in cigarette filter rod process

Examples

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preparation example Construction

[0052] The invention provides a method for preparing colored polylactic acid fibers. The prepared tow is a safe, environmentally friendly and completely degradable green product with specific color and anti-counterfeiting properties (can be faded by light). The fiber contains natural Food coloring can be directly used to produce cigarette filter rods, and can also be used as a colored functional center line to produce functional center line tobacco filter rods. The filtration and adsorption effect of harmful substances in the air and the sensory quality of cigarettes are further improved, which can meet the requirements of cigarette use and provide a new choice for the diversification, functionalization and differentiation of tobacco filter materials.

[0053] Take a series of colored polylactic acid fibers from golden yellow → true yellow → lemon yellow → light yellow as an example.

Embodiment 1

[0055] Put the polylactic acid resin into a vacuum oven, and dry it at 70°C for 24 hours, so that the moisture content of the raw material is lower than 80PPM, and then take it out. The natural pigment is lycopene. According to the weight ratio, the ratio of lycopene:polylactic acid=0.8:99.2 After mixing, put it into the screw extruder, set the temperature of the screw feed area to 170°C, and the temperature of other areas (including other areas of the screw, filters, conveying pipes and spinning boxes, etc.) Silk can produce figure 1 The golden yellow polylactic acid fiber shown; keep the temperature of the feeding section at 170°C, and the temperature of other areas rises to 240°C, and can produce image 3 Polylactic acid fiber shown faded in color to golden yellow. In the post-processing process, according to the staple fiber production process, the golden yellow polylactic acid fiber can be prepared through the processes of drawing, crimping, drying and setting, laying, a...

Embodiment 2

[0057] Select the natural pigment as a mixture of lycopene and lutein. According to the weight ratio, the ratio of lycopene: lutein: polylactic acid = 0.5: 1.0: 98.5, add it to a vacuum drum dryer, dry and mix at 80 ° C for 12 hours, After the moisture content of the raw material is lower than 100PPM, it is added to the screw extruder, and the temperature of the screw feeding zone is set to 155°C in a gradually increasing manner. silk box, etc.) at a temperature of 215°C, which can be produced by metered spinning figure 2 The golden yellow polylactic acid fiber shown; keep the temperature of the feeding section at 155°C, and the temperature of other areas rises to 245°C, and can produce Figure 4 Polylactic acid fiber shown faded in color to golden yellow. In the post-processing process, according to the staple fiber production process, the golden yellow polylactic acid fiber can be prepared through the processes of drawing, crimping, drying and setting, laying, and packagin...

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Abstract

The invention provides an adjusting device for color polylactic acid fibers in a cigarette filter rod process. An adjusting shaft comprises an adjusting seat, shafts connected with the adjusting seat,sliding blocks matched with the shafts and locking screws located on the sliding blocks; a tow distribution guide mechanism comprises a distribution guide seat connected with a supporting rod and distribution rods located on the distribution guide seat; and the multiple shafts are matched with multiple sliding grooves in a fixing seat, the multiple distribution rods are connected with the distribution guide seat, and multiple tows penetrate through the tow distribution guide mechanism, pass through the multiple shafts and then pass through multiple threaded rollers on a tow forming device. The polylactic acid fibers are distributed through multiple distribution rings on a polylactic acid fiber distribution guide mechanism to pass through the adjusting shaft, the directions and angles of the tows are adjusted through the rotatable distribution rods and the adjusting shaft, the sliding blocks limit radial sliding of the polylactic acid fibers on the shafts, the polylactic acid fibers ofmultiple different colors are formed after being opened and mixed through the multiple stages and multiple sets of threaded rollers, and filter rods of different color and patterns can be prepared.

Description

technical field [0001] The invention relates to a method for preparing colored polylactic acid fibers, in particular to a method for preparing colored polylactic acid fibers for cigarettes. Background technique [0002] Cigarette filters play an important role in reducing tar and harm, improving taste, and improving cigarette quality, and are an indispensable part of the cigarette production process. At present, the cigarette filter materials on the market are basically white. With the advancement of science and technology and the improvement of people's living standards, smokers have higher and higher requirements for the differentiation, functionality and diversification of cigarette filters. Colored cigarettes The development of tow and filter rods has also become a trend. [0003] In the field of synthetic fibers, the technology for producing colored fibers is relatively mature, and there are many related literatures. The main methods used are: masterbatch blending and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/08D01D1/02D01D11/00D01F6/92D01F1/04D01F1/06
CPCD01F1/04D01F6/92D01D5/08D01D1/02D01D11/00D01F1/06
Inventor 方斌陈水平胡旺顺
Owner 湖北金叶玉阳化纤有限公司