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Dry process paper filter tip and its preparation process

A cigarette filter rod and air-laid paper technology, applied in e-liquid filter element, tobacco, application, etc., can solve the problems of filtration rate and taste influence, reduce filter elasticity, etc., and achieve full and stiff hand feeling, good resilience, and void uniform effect

Active Publication Date: 2010-05-26
SHANGHAI HUABAO BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some deficiencies have been shown in the actual use process. For example, although the hardness of the filter stick meets the relevant national standards, the pinch and squeeze during the cigarette smoking process and the moisture in the smoke will reduce the elasticity of the filter tip, thereby affecting the quality of the filter tip. Filtration rate and odor absorption have a certain impact

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] First, use non-toxic esters or ethers to carry out antistatic treatment on the surface of the hot-melt sheath-core fiber, so that the specific resistance is less than 9×10 8 (Ω·cm). Subsequently, the opened wood pulp fiber and 5% to 65% heat-melting sheath-core fiber are respectively metered and transported and air-laid. The hot-melt sheath-core fiber can choose PE / PP, LPET / PET, or PE / PET, or a mixture of PE / PP and PE / PET. The web-formed paper web is heat-formed without pressure in the forming drying tunnel, and the drying tunnel is in a negative pressure state of 0.98 to 0.85 atmospheres, so that the dry-laid paper maintains a high bulkiness. Then, spray glue on the formed dry-laid paper, the spraying amount is 3.5% to 7% of the weight of the dry-laid paper, and complete the drying, curing and puffing process at one time. After being shaped by cold air, the grammage is 35g / m 2 ~75g / m 2 , a bulky and highly elastic dry-laid paper with a thickness of 0.8mm to 3.5mm. ...

Embodiment 2

[0016] The dry-laid paper cigarette filter rod prepared by the method described in Example 1 adopts 35% PE / PP hot-melt sheath-core fiber, or a mixture of PE / PP and PE / PET hot-melt sheath-core fiber , the mixing ratio is: 5% ~ 95% PE / PP and 95% ~ 5% PE / PET, forming a gram weight of 45g / m 2 , Thickness of 1.3mm bulky high elastic dry-laid paper. According to the requirements of the finished product, divide the dry-laid paper into strips with a width of 4 cm, and overlap three layers. Place the three layers of overlapping dry-laid paper on the feeding device of an ordinary filter rod forming machine, and directly wrap the forming paper on the filter rod forming machine to form a rod. The air-laid paper filter rod made has good air permeability, uniform mesh gap, good elasticity, strong resilience, full hand feeling, no shrinkage, hardness of about 89%, and all indicators meet the national standards for filter rods. When the length is 120mm, the suction resistance is 3750pa, and...

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PUM

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Abstract

The present invention reveals one kind of dry process paper filter tip and its preparation process. The filter tip material including wood pulp fiber and coat core fiber is first antistatic treated with non-toxic ester or ether to specific resistance smaller than 900 megohm.cm; and the opened material is then metered, conveyed, airflow netted, heated to form under negative pressure, sprayed with glue, stoved, matured, puffed and settled in cold wind to form dry process paper of plane weight 35-75 g / sq m and thickness of 0.8-3.5 mm. The dry process paper is finally formed into the filter tip, and the filter tip has filter rate over 43 %, hardness over 89 % and ideal rebounding effect after kneads.

Description

Technical field [0001] The invention relates to a cigarette filter rod and a preparation method thereof, in particular to a dry-laid paper cigarette filter rod and a preparation method thereof. Background technique [0002] With the improvement of people's quality of life and the increasing awareness of health, the problem of cigarette tar reduction has not only received full attention from the cigarette industry, but also attracted the attention of the World Health Organization and governments of various countries. Inserting filter tips on cigarettes has low cost and intuitive effect, and is an effective measure for cigarettes to filter tar and nicotine. More than 98% of cigarettes in the world are equipped with filter tips. Currently, the filter materials used in cigarettes sold on the market are mainly divided into two categories: one is acetate fiber, and the other is polypropylene fiber. Adopt the filter tip that polypropylene fiber is made, although price is lower, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24D3/06
Inventor 梅建华
Owner SHANGHAI HUABAO BIOLOGICAL TECH
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