CN109007968A - A kind of yarn and preparation method thereof in cigarette filter rod - Google Patents

Abstract

The present invention provides a kind of yarn in cigarette filter rod, is counted on the basis of the gross mass of the yarn, and the yarn includes following raw material components and parts by weight: 25 ~ 45 parts by weight of cotton fiber；55 ~ 75 parts by weight of Diacetate cellulose tow.A kind of new type yarn for cigarette filter rod of the invention, by the way that Diacetate cellulose tow and cotton fiber is blended with structure by a certain percentage, using in the same direction and twist technology, simple process, the advantages of design synthesis Diacetate cellulose tow and cotton fiber, such as reduces the hydroscopicity of cotton thread, reduces " glue hole " probability of occurrence, improve stability of the cotton thread in filter stick, and simple process.

Description

A kind of yarn used in cigarette filter rod and its preparation method

technical field

The invention relates to a novel yarn, in particular to a yarn used in cigarette filter sticks and a preparation method thereof.

Background technique

Cigarettes currently on the market generally reduce the harmful components in the smoke by adding filters, and can increase and adjust the taste and flavor of the smoke by adding cotton threads to the filters, so as to meet the needs of different consumers.

Cotton thread is the commonly used threaded filter rod. Cotton fiber has strong hygroscopicity, which can significantly increase the cotton thread’s fragrance absorption. During the threading process of the filter rod, it is easy to accumulate fragrance and triacetin. Excessive triacetin is easy to accumulate. Lead to "glue holes" in the filter rod, which has a serious impact on product quality; at the same time, the cotton thread has a high shrinkage rate and is deformed after dehydration, which is easy to cause the filter rod cotton thread to shrink and form pinholes; at the same time, the cotton fiber has low microbial resistance and is easy to mildew , the storage conditions are harsh and the cost is high.

Diacetate fiber tow is the main raw material in the filter. Its cross-sectional shape is "Y" shape, with a large surface area and high retention efficiency for cigarette smoke; A cross-linked structure is formed between them to achieve the purpose of stabilizing the diacetate fiber tow, and the molding process is simple. Moreover, diacetate fiber tow should not shrink and deform when it is wet, and it can be fixed in the filter rod by adding an appropriate amount of triacetin, but the hygroscopicity is poor.

Contents of the invention

In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a flavoring yarn and a cigarette filter rod for cigarette filter rods to solve the problem of poor comprehensive performance of the cigarette filter rods in the prior art.

In order to achieve the above purpose and other related purposes, the present invention is achieved by including the following technical solutions.

The invention discloses a yarn used in a cigarette filter rod. Based on the total mass of the yarn, the yarn comprises the following raw material components and parts by weight:

Cotton fiber 25-45 parts by weight

55-75 parts by weight of cellulose diacetate tow.

Preferably, the twist of the cotton fiber is (10-80) twist/10cm. More preferably, the twist of the cotton fiber is (40-60) twist/10cm.

Preferably, the twist of the diacetate fiber tow is (20-200) twists/10cm. More preferably, the twist of the diacetate fiber tow is (40-60) twists/10cm.

Preferably, the number of fibers on the cross section of the diacetate fiber tow is 15-25.

Preferably, the monofilament linear density of the diacetate fiber tow is 2.0-15.0D, and the cross-sectional shape of the diacetate fiber is "Y". More preferably, the monofilament linear density of the diacetate tow is 2.0-6.0D.

Preferably, the linear density of the cotton fiber is (2-100)D. More preferably, the cotton fiber has a linear density of 2.0-6.0D.

Preferably, the color of the yarn is one of white, red, blue, green and purple.

In order to achieve better blending purposes, preferably, the yarn is a parallel twist structure of cotton fiber and diacetate fiber tow, and the parallel twist structure is co-directional parallel twist, and the twist during parallel twist is (40～100 ) twist/10cm. More preferably, the twist degree during doubling is (40-60) twists/10cm.

The production process of the above-mentioned yarn in this application is obtained according to the process of preparing yarn in the prior art.

A cigarette filter rod containing yarn, wherein the above-mentioned yarn is embedded in the axial center of the cigarette filter rod.

The circumference of the cigarette filter rod is 23-25 mm.

A method for preparing a cigarette filter rod as described above, comprising the steps of:

1) Draw the yarn to the filter rod forming machine, and add it to the center of the filter rod through the filter forming equipment;

2) Distribute the tobacco particles on the wrapping paper.

As mentioned above, the yarn used for cigarette filter stick flavoring of the present invention has the following beneficial effects:

A new type of yarn used for cigarette filter rods of the present invention is made by blending diacetate fiber tow and cotton fiber according to a certain proportion and structure, using co-direction parallel twisting technology, simple process, and a combination of diacetate fiber yarn The advantages of bundles and cotton fibers, such as reducing the moisture absorption rate of cotton threads, reducing the probability of "glue holes", improving the stability of cotton threads in filter rods, and the process is simple.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the yarn of the present invention.

Reference numerals are as follows among Fig. 1: 1 is diacetate fiber tow, 2 is cotton fiber.

Fig. 2 is a schematic diagram of the cross-sectional structure of diacetate fiber tow.

Fig. 3 is a cross-sectional view of a threaded filter rod made of yarn in the present application.

Fig. 4 is a longitudinal schematic diagram of a threaded filter rod made of yarn in the present application.

Reference numerals in Fig. 3 and Fig. 4 are as follows: 3 is filter stick; 4 is yarn.

Detailed ways

The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

Before further describing the specific embodiments of the present invention, it should be understood that the protection scope of the present invention is not limited to the following specific specific embodiments; it should also be understood that the terms used in the examples of the present invention are to describe specific specific embodiments, It is not intended to limit the protection scope of the present invention. The test methods for which specific conditions are not indicated in the following examples are usually in accordance with conventional conditions, or in accordance with the conditions suggested by each manufacturer.

When the examples give numerical ranges, it should be understood that, unless otherwise stated in the present invention, the two endpoints of each numerical range and any value between the two endpoints can be selected. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition to the specific methods, equipment, and materials used in the embodiments, according to those skilled in the art's grasp of the prior art and the description of the present invention, the methods, equipment, and materials described in the embodiments of the present invention can also be used Any methods, apparatus and materials of the prior art similar or equivalent to the practice of the present invention.

Example 1

This embodiment discloses a yarn used in cigarette filter rods. Based on the total mass of the yarn, the yarn includes the following raw material components and parts by weight:

Cotton fiber 25 parts by weight

75 parts by weight of cellulose diacetate tow.

The twist of the cotton fiber of the cotton fiber is 40 twists/10cm;

The twist of the diacetate fiber tow is 20 twists/10cm.

The number of fibers on the cross-section of the diacetate fiber tow is 20.

The monofilament linear density of the diacetate fiber tow is 2.0D, and the cross-sectional shape of the diacetate fiber is "Y".

The linear density of the cotton fiber is 5.0D.

The yarn is a parallel twist structure of cotton fiber and diacetate fiber tow, the parallel twist structure is parallel twist, and the twist degree during parallel twist is 40 twists/10cm.

A cigarette filter rod containing yarn, wherein the above-mentioned yarn is embedded in the axial center of the cigarette filter rod.

The circumference of the cigarette filter rod is 25mm.

A method for preparing a cigarette filter rod as described above, comprising the steps of:

1) Draw the yarn to the filter rod forming machine, and add it to the center of the filter rod through the filter forming equipment;

2) Distribute the tobacco particles on the wrapping paper.

Example 2

This embodiment discloses a yarn used in cigarette filter rods. Based on the total mass of the yarn, the yarn includes the following raw material components and parts by weight:

45 parts by weight of cotton fiber

55 parts by weight of cellulose diacetate tow.

The twist of the cotton fiber of the cotton fiber is 60 twists/10cm;

The twist of the diacetate fiber tow is 60 twists/10cm.

The number of fibers on the cross-section of the diacetate fiber tow is 20.

The monofilament linear density of the diacetate fiber tow is 5.0D, and the cross-sectional shape of the diacetate fiber is "Y".

The linear density of the cotton fiber is 2.0D.

The yarn is a parallel twist structure of cotton fiber and diacetate fiber tow, the parallel twist structure is parallel twist, and the twist degree during parallel twist is 60 twists/10cm.

A cigarette filter rod containing yarn, wherein the above-mentioned yarn is embedded in the axial center of the cigarette filter rod.

The circumference of the cigarette filter rod is 23mm.

A method for preparing a cigarette filter rod as described above, comprising the steps of:

1) Draw the yarn to the filter rod forming machine, and add it to the center of the filter rod through the filter forming equipment;

2) Distribute the tobacco particles on the wrapping paper.

Example 3

This embodiment discloses a yarn used in cigarette filter rods. Based on the total mass of the yarn, the yarn includes the following raw material components and parts by weight:

30 parts by weight of cotton fiber

70 parts by weight of cellulose diacetate tow.

The twist of the cotton fiber of the cotton fiber is 80 twists/10cm;

The twist of the diacetate fiber tow is 50 twists/10cm.

The number of fibers on the cross-section of the diacetate fiber tow is 15.

The monofilament linear density of the diacetate fiber tow is 10.0D, and the cross-sectional shape of the diacetate fiber is "Y".

The linear density of the cotton fiber is 5.0D.

The yarn is a parallel twist structure of cotton fiber and diacetate fiber tow, the parallel twist structure is parallel twist, and the twist degree during parallel twist is 50 twists/10cm.

A cigarette filter rod containing yarn, wherein the above-mentioned yarn is embedded in the axial center of the cigarette filter rod.

The circumference of the cigarette filter rod is 25mm.

A method for preparing a cigarette filter rod as described above, comprising the steps of:

1) Draw the yarn to the filter rod forming machine, and add it to the center of the filter rod through the filter forming equipment;

2) Distribute the tobacco particles on the wrapping paper.

Example 4

This embodiment discloses a yarn used in cigarette filter rods. Based on the total mass of the yarn, the yarn includes the following raw material components and parts by weight:

40 parts by weight of cotton fiber

60 parts by weight of cellulose diacetate tow.

The twist of the cotton fiber of the cotton fiber is 10 twists/10cm;

The twist of the diacetate fiber tow is 45 twists/10cm.

The number of fibers on the cross-section of the diacetate fiber tow is 25.

The monofilament linear density of the diacetate fiber tow is 15.0D, and the cross-sectional shape of the diacetate fiber is "Y".

The linear density of the cotton fiber is 6.0D.

The yarn is a parallel twist structure of cotton fiber and diacetate fiber tow, the parallel twist structure is parallel twist, and the twist degree during parallel twist is 45 twists/10cm.

A cigarette filter rod containing yarn, wherein the above-mentioned yarn is embedded in the axial center of the cigarette filter rod.

The circumference of the cigarette filter rod is 25mm.

A method for preparing a cigarette filter rod as described above, comprising the steps of:

1) Draw the yarn to the filter rod forming machine, and add it to the center of the filter rod through the filter forming equipment;

2) Distribute the tobacco particles on the wrapping paper.

The main properties of the yarn in Examples 1 to 4 are as follows:

Example 1 Example 2 Example 3 Example 4 Mass per unit length (g/1m) 0.102 0.113 0.124 0.116 Water absorption (%) 253 236 268 221 Tensile strength (N) 17.51 16.08 20.32 19.93 Elongation at break (%) 7.23 6.11 8.98 7.83

A. Mass per unit length. Cut off 1m±0.5cm yarn, weigh the mass m ₁ with an accuracy of 0.001g, and the result is the mass per unit length.

B. The test method for water absorption is to cut off the yarn with a length of 1m±0.5cm, weigh the actual mass m1 to _an accuracy of 0.01g, soak it in water, take it out after soaking for 30min, hang it and let it stand for about 1min, and wait for the yarn to dry. After the liquid is low, the weighing _m2 is accurate to 0.01g.

Water absorption = (m ₂ -m ₁ )/m ₁ *100%

C. Tensile strength and elongation at break are tested by INSTRON tensile tester.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims (9)

1. A yarn used in a cigarette filter rod, characterized in that, based on the total mass of the yarn, the yarn comprises the following raw material components and parts by weight: Cotton fiber 25-45 parts by weight 55-75 parts by weight of cellulose diacetate tow. 2. The yarn according to claim 1, wherein the twist of the cotton fiber is (10-80) twist/10cm. 3. The yarn according to claim 1, characterized in that, the twist of the diacetate fiber tow is (20-200) twist/10cm. 4. The yarn according to claim 1, characterized in that the number of fibers in the cross-section of the diacetate fiber tow is 3-80. 5 . The yarn according to claim 1 , wherein the linear density of the monofilament of the diacetate fiber tow is 2.0-15.0D, and the cross-sectional shape of the diacetate fiber is “Y”. 6. The yarn according to claim 1, characterized in that the linear density of the cotton fiber is (2-100)D. 7. yarn as claimed in claim 1, is characterized in that, described yarn is the parallel twisting structure of cotton fiber and diacetate fiber tow, and described parallel twisting structure is parallel twisting in the same direction, and the twist during parallel twisting is (40～100) twist/10cm. 8. A cigarette filter rod containing yarn, characterized in that the yarn according to any one of claims 1-7 is embedded in the axial center position of the cigarette filter rod. 9. A method for preparing a cigarette filter rod containing yarn as claimed in claim 8, comprising the steps of: 1) Draw the yarn to the filter rod forming machine, and add it to the center of the filter rod through the filter forming equipment; 2) Distribute the tobacco particles on the wrapping paper.