TW321595B - - Google Patents

Abstract

The invention concerns a filter material which is suitable in particular for producing cigarette filters. The material is characterized in that molten softened cellulose acetate is applied by the melt blown technique to a strip of prefabricated filter paper.

Description

Printed by the Zhengong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs A7 B7 V. Description of the invention (1) The invention is roughly based on a cigarette filter according to the preamble of item 1 of the scope of the patent application. Owing to the concept, cellulose lip is increasingly used to form cigarette filters. In addition to the design of light and light cigarettes, licking is often the preferred choice because of its good retention. However, one of the main disadvantages of cellophane or paper lapping is the adverse effect of a paper filter on the taste, while cellulose acetate lapping has no such adverse effect; instead, they are used together with other filter materials to form Double, duplex or multiple filters. But making such multiple mouthpieces is quite complicated and expensive. On the other hand, cellulose acetate filters with a degree of acetylation of 2.0 or above have encountered problems with biodegradation. If the degree of acetylation is less than 2.0 * such as 1.7 or even as small as 1.5, the filter material is almost decomposed As good as paper (cellulose), however, there is currently no mass production method available / to manufacture such cellulose acetate filters that can be used to manufacture cigarette filters. An object of the present invention is to provide a new filter material for a single filter or a single piece of filter with the same retention as a multiple filter. Another object of the present invention is to provide a method for manufacturing such a filter material. This is achieved by the features described in item 1 or 17 of the patent application. In the present invention, helixin acetate is coated on a sheet of paper by a melt-blowing method, which combines the good retention of cellulosin with the selective retention of acetaminophen acetate. This material, if formed into a single filter, is surprisingly -4-This paper size is applicable to China National Standard (CNS) A4 (210X297mm) ~ " " (Please read the notes on the back first Fill in this page)-定 -Γ 321595 at B7 5. Description of the invention (2) It has the same retention and taste properties as the general multiple filter with the same general preservation. The manufacture of this new filter material can be carried out in a melt-blowing method by using a multi-layer structure with a preferably single layer and having 8 to 50 g / cm2 * and 15 to 30 g / cm2 as the preferred smooth or crepe paper sheet. to make. The degree of acetylation of the melted and blown cellulose acetate is 1.0-3.0, preferably 1.7-2.6 * and the fibers formed by the melt blown method are quite brittle and usually do not combine to form a filter material . However, in the present invention, the cellulose acetate filter is treated with triacetin to soften the outside of the fibers, so that they are softened at the periphery and bonded at the area where they touch and simmer together. This completes a suitably entangled halogen filter material that can be processed to form a cigarette filter. Depending on the volume range of paper / cellulose acetate, a binder can be advantageously used. This binder can be a sticky agent or, for example, denatured extrudable and meltable starch, starch is preferred for ecological reasons. In each case, care must be taken so that the processing temperature does not affect the later coated cellulose fibers. ---------- 〇— • * (please read the note $ item on the back and then fill in this page). The standard printed by the Ministry of Economic Affairs Central Sample Bureau of Zhengong Consumer Cooperative. (CNS) A4 specification (2 丨 0X297mm)

Claims (1)

3 dozen 595 6. Scope of patent application A8 B8 C8 D8 Central China Bureau of Economic Affairs, Ministry of Economic Affairs, Consumer Cooperation Du Yin *. I A filter material used to make cigarette mouths, and its emblem lies in: the melted and softened cellulose acetate The cellulose acetate filter is coated on a piece of filter paper with a predetermined size by a melt blowing method. 2. As for the patented material in the first scope of the patent application, its perseverance is that the penvicillin acetate is coated by using an additional binder. 3. If the filter material of the first item of the patent application scope, the special feature is that the filter paper is a single layer or multiple layers of paper. 4. If the patent application item No. 3 of the _ filter material, its waiting is that the filter paper has an area weight of 8 to 50g / cm2. 5. If the filter material of the fourth item of the patent application scope, its holding is that the area of the filter paper is reset in the area of 15 to 30g / cm2. 6. If the filter material of the fifth item of patent application is applied, its persistence is that the filter paper is smooth. 7. If the material of the patent application item 5 is over, the emblem is that the filter paper is pre-wrinkled. 8. If the general application material of the first item of the patent application scope, its waiting is: the filter paper contains a material with a large surface area, such as active master, sepiolite, etc. 9. If the application of the filter material of the first item of the patent scope, The special feature is that the Lian paper contains materials with a large surface area, and these materials contain most flavor or taste control additives. 10. If the application material of the patent scope item 9 is over, the emblem is: The additives are vitamins or substances with similar effects. 11. For the filter material applying for item 1 of the patent scope, the pending content is: -6-This paper uses the Chinese National Crusher (CNS) A4 specification (210X297mm) (please read the precautions on the back before filling in (This page) 321595 B8 C8 Scope of patent application Printed by the Sangong Consumer Cooperative of the Central Standardization Bureau of the Ministry of Economic Affairs The degree of acetylation of the blown cellulose acetate is 1.2 to 2.8. 12. The filter material as claimed in item 1 of the scope of patent application, its waiting is: the degree of acetylation of the blown cellulose acetate is 1.5 to 2.5. 13 ▲ If the filter material of the first item of the patent application scope, its waiting is: The cellulose acetate does not have titanium dioxide. 14. If the filter material of the first item of the patent application scope, its special features are: glycerol triacetate or other softeners are coated on the cellulose acetate. 15 As the filter of the patent application item i 4 The material's support is that the cellulose acetate has a softening agent of at most 20¾. 16. The filter material as claimed in item i of the scope of patent application has the following merits: The cellulose acetate is coated on filter paper having a fiber thickness of 0.1-2 Danny. -A method for manufacturing a cigarette filter for cigarette filters, which is characterized in that the softened cellulose acetate is applied to a piece of paper with a predetermined size suitable for manufacturing cigarette filters by a melt blowing method . 18. The method as claimed in item i 7 of the patent application is characterized by the fact that the helixin acetate is coated on the paper by using a binder. 19. The method as claimed in item 18 of the patent scope is that the acetate is coated onto paper with a thickness of 0.1-2 danni. This paper uses the Chinese National Standard (CNS) A4 standard (21〇χ297mm) II -------- Γ " ^ --- • Γ ν (Please read the note $ item on the back first Fill in this page) -i .l