阅读说明：本技术 一种载香无纺布及其在烟用滤棒材料中的应用 (Fragrance-carrying non-woven fabric and application thereof in cigarette filter stick material ) 是由 孙绍彬 代家红 李光平 杨娟 朱晨 张剑 方海春 唐兴磊 于 2020-06-29 设计创作，主要内容包括：本发明提供了一种载香无纺布及其在烟用滤棒材料中的应用,属于烟草加工技术领域,本发明所述的无纺布在制备成滤棒后,锁香效果较好,通过凝胶与无纺布的有机结合,能够减缓施加在滤棒中的线状凝胶在抽吸时快速挥发,避免出现抽吸前后口味差异较大的不足,使整支烟具有较为均衡的口感；并且本发明的香味物质可以灵活调配而具有不同风格特征,香气量可调节,原料来源丰富；另外,本发明针对不同类型无纺布在制备滤棒时存在的不同缺陷,针对性的进行预处理,例如表面喷涂活性炭颗粒、固化压纹处理或者施加专用的粘合剂、使其在具备优良载香性能的同时,也能够符合滤棒的各项参数指标。(The invention provides a fragrance-carrying non-woven fabric and application thereof in cigarette filter stick materials, and belongs to the technical field of tobacco processing, the non-woven fabric has a good fragrance locking effect after being prepared into a filter stick, and through organic combination of gel and the non-woven fabric, the rapid volatilization of linear gel applied to the filter stick during smoking can be slowed down, so that the defect of large taste difference before and after smoking is avoided, and the whole cigarette has relatively balanced taste; the fragrant substance of the invention can be flexibly prepared and has different style characteristics, the fragrance amount can be adjusted, and the raw material source is rich; in addition, the invention aims at different defects of different types of non-woven fabrics in the preparation of filter sticks, and carries out pretreatment in a targeted manner, such as surface spraying of activated carbon particles, solidification and embossing treatment or application of special adhesives, so that the filter stick has excellent aroma-carrying performance and can also meet various parameter indexes of the filter stick.)

1. The aroma-carrying non-woven fabric of the cigarette filter stick comprises a non-woven fabric base material and an aroma-giving substance applied to the non-woven fabric, and is characterized in that the aroma-giving substance comprises the following components in parts by weight, namely a colloid mixture and a essence mixture; wherein the colloid mixture comprises 1-5 parts of glycerin monostearate, 0.8-4 parts of palmitic acid, 0.5-3 parts of beta-cyclodextrin, 0.3-1 part of lauric acid and 1-7 parts of polyethylene glycol; the essence mixture comprises essence base and propylene glycol, wherein the essence base comprises the following components in parts by weight: propylene glycol =3-20: 2-10; the essence base is natural essence or synthetic essence.

2. The flavor-carrying non-woven fabric for the cigarette filter stick according to claim 1, wherein the non-woven fabric is a polypropylene fiber non-woven fabric or a natural plant fiber non-woven fabric.

3. The flavor-carrying non-woven fabric for the cigarette filter stick according to claim 1, wherein the essence base comprises mint essence, citrus natural essential oil type essence, blueberry essence, litsea cubeba oil type essence, hawthorn extract type essence, tamarind fruit extract type essence, siraitia grosvenorii extract type essence, fig extract type essence, cedar oil type essence and sandalwood oil type essence.

4. The flavor-bearing non-woven fabric for the cigarette filter stick according to claim 1, wherein the flavor mixture comprises mint flavors and propylene glycol; wherein the essence base is mint essence, and specifically comprises 2-8 parts of dementholized peppermint oil, 0.3-2 parts of menthyl acetate, 0.1-2 parts of menthyl lactate and 1-7 parts of menthol; the using amount of the propylene glycol is 2-6.5 parts.

5. A preparation method of cigarette filter stick fragrance-carrying non-woven fabric is characterized in that the non-woven fabric is polypropylene fiber non-woven fabric, and the preparation method comprises the following specific steps:

preparation of fragrant substances

Firstly, according to the proportion of 1-5 parts of stearic acid (glyceryl monostearate), 0.8-4 parts of palmitic acid, 0.5-3 parts of beta-cyclodextrin, 0.3-1 part of lauric acid and 1-7 parts of polyethylene glycol, carrying out hot melting at 65-150 ℃, and uniformly stirring to obtain a colloid;

② according to the weight portion, the essence base: mixing propylene glycol =3-20:2-10 to prepare essence;

thirdly, mixing the colloid obtained in the step one and the essence obtained in the step two by 2-7 parts: 3-8 parts of the components are uniformly mixed to obtain a gel-like flavoring substance for later use;

secondly, pretreatment of non-woven fabrics

Firstly, crushing the active carbon by using a high-speed crusher until the particle size is 200-300 meshes;

drying the activated carbon powder;

thirdly, placing the polypropylene fiber non-woven fabric in a closed space, and uniformly charging the non-woven fabric after passing through an electrified rubber roller by running the non-woven fabric through the electrified rubber roller; simultaneously, the prepared activated carbon powder is loaded into a spray gun, and the spray gun is opposite to two sides of the non-woven fabric passing through the charged rubber rod;

starting a spraying system, spraying the activated carbon powder on the surface of the non-woven fabric, wherein the spraying amount is 50-200 g/min, the rolling speed of the non-woven fabric is 0.2-0.5m/s, and the activated carbon powder is attached to the non-woven fabric under the action of electrostatic force;

fifthly, blowing the non-woven fabric which is rolled after spraying with gas, blowing off the activated carbon powder which is not firmly adsorbed, and then conveying the non-woven fabric to a dip-coating process;

dip-coating of perfuming substance

Heating the gel-like aromatizing substance in water bath to be in a liquid state, wherein the water bath temperature is 80-150 ℃, and then coating the gel-like aromatizing substance on the pretreated non-woven fabric by adopting a dip coating mode.

6. A preparation method of cigarette filter stick fragrance-carrying non-woven fabric is characterized in that the non-woven fabric is polypropylene fiber non-woven fabric, and the preparation method comprises the following specific steps:

preparation of fragrant substances

Firstly, according to the proportion of 1-5 parts of stearic acid, 0.8-4 parts of palmitic acid, 0.5-3 parts of beta-cyclodextrin and 1-7 parts of polyethylene glycol, carrying out hot melting at 65-150 ℃, and uniformly stirring to obtain a colloid;

② according to the weight portion, the essence base: mixing propylene glycol =3-20:2-10 to prepare essence;

thirdly, mixing the colloid obtained in the step one and the essence obtained in the step two by 2-7 parts: 3-8 parts of the components are uniformly mixed to obtain a gel-like flavoring substance for later use;

secondly, pretreatment of non-woven fabrics

Applying adhesive on the non-woven fabric, drying at 50-60 ℃, and sending to a dip-coating procedure of the aromatizing substance; the adhesive is formed by mixing ethylene-vinyl acetate copolymer, resin, glycerol triacetate and ethanol;

dip-coating of perfuming substance

Heating the gel-like aromatizing substance in water bath to be in a liquid state, wherein the water bath temperature is 80-150 ℃, and then coating the gel-like aromatizing substance on the pretreated non-woven fabric by adopting a dip coating mode.

7. A preparation method of cigarette filter stick fragrance-carrying non-woven fabric is characterized in that the non-woven fabric is natural plant fiber non-woven fabric, and the preparation method comprises the following specific steps:

preparation of fragrant substances

Firstly, according to the proportion of 1-5 parts of stearic acid, 0.8-4 parts of palmitic acid, 0.5-3 parts of beta-cyclodextrin and 1-7 parts of polyethylene glycol, carrying out hot melting at 65-150 ℃, and uniformly stirring to obtain a colloid;

② according to the weight portion, the essence base: mixing propylene glycol =3-20:2-10 to prepare essence;

thirdly, mixing the colloid obtained in the step one and the essence obtained in the step two by 2-7 parts: 3-8 parts of the components are uniformly mixed to obtain a gel-like flavoring substance for later use;

secondly, pretreatment of non-woven fabrics

Firstly, mixing air with a certain pressure and a curing agent by using a spraying device to generate completely atomized uniform small particles, spraying the particles on the surface of a non-woven fabric, and then embossing and curing the non-woven fabric by using a heating embossing roller;

secondly, drying the embossed and cured non-woven fabric by hot air, and then conveying the non-woven fabric to a dip-coating process;

dip-coating of perfuming substance

Heating the gel-like aromatizing substance in water bath to be in a liquid state, wherein the water bath temperature is 80-150 ℃, and then coating the gel-like aromatizing substance on the pretreated non-woven fabric by adopting a dip coating mode.

8. The method for preparing the cigarette filter stick fragrance-carrying non-woven fabric according to claim 7, wherein the curing agent is modified starch.

Technical Field

The invention belongs to the technical field of tobacco processing, and particularly relates to an aroma-carrying non-woven fabric and application thereof in a cigarette filter stick material.

Background

With the development of economy and the continuous improvement of the living standard and quality of people, tobacco products are continuously changed, and meanwhile, tobacco enterprises and consumers all put forward higher requirements on cigarette aroma enhancement and quality improvement. At present, the efforts in the aspects of increasing aroma and improving quality are mainly embodied in the aspects of reasonably adding sheets in a cigarette formula, adding special additives in a filter stick, optimizing the design of three-paper one-stick parameters of cigarette accessories and the like, and are all the key points of attention of tobacco enterprises, and cigarette filters belong to the key design thereof.

The conventional filter stick flavoring technology mainly adopts the following schemes: the most mature technology is that the fragrant threads adhered with spices are added into the filter stick and the micro capsules or the blasting beads are added into the filter stick;

there is also a mode of adding aroma-enhancing gel-like aroma-imparting substance into the existing filter stick, which utilizes the characteristics of good aroma-retaining property of the gel-like aroma-imparting substance at normal temperature and volatilization and release under the action of smoke temperature during smoking, and the adding process is relatively simple, such as 'a composite gel-like aroma-imparting substance aroma sustained-release granule and its preparation method and its use 201610764049.3', and 'a thread-like composite gel-like aroma-imparting substance aroma sustained-release filter stick and its preparation method and its use, 201610064101.4'; the main problem of the above technical scheme is that the distribution mode of the gel-like aroma-providing substance in the filter stick is too single, and basically, the linear gel-like aroma-providing substance is directly added into the tow or the gel-like aroma-providing substance is mixed with the aroma-providing thread and then is mixed in the tow of the filter stick, so that the aroma-providing substance is not uniformly released, and the stability of the smoke taste is affected.

Compared with available filter tip material of acetate fiber tow, polypropylene fiber tow and other cigarette filter tip material, the said filter tip material has the advantages of simple filter tip forming process, high elasticity, high air permeability, wide material source, low cost, etc. The existing non-woven fabric raw materials are basically derived from two aspects, namely, macromolecular chemical fibers, such as polypropylene fibers; the other is derived from natural plant fibers, such as wood pulp fibers; some tobacco enterprises adopt chemical fiber non-woven fabrics to manufacture filter rods, which is beneficial to reducing the manufacturing cost of cigarettes, but the performance of the filter rods is affected by the defect of limited inherent adsorption capacity of polypropylene fibers; in addition, the thermoplastic resin is used as a bonding material, so that natural plant fiber non-woven fabric is manufactured, although natural plant fibers have good adsorption performance, the manufactured non-woven fabric is soft and has insufficient pressure resistance, the indexes of hardness, weight, suction resistance and the like of a filter stick manufactured by using the non-woven fabric are difficult to meet the national quality requirements, the melting point of the thermoplastic resin is low, and the formed filter stick has obvious thermal collapse during suction, so that the use requirement cannot be met.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides an aroma-carrying non-woven fabric and a preparation method of the non-woven fabric as a cigarette filter rod material, which improve the uniformity and the persistence of aroma release by changing the aroma-applying mode of a filter rod and ensure the requirements of the non-woven fabric composite cigarette filter rod for aroma-applying on the aspects of adsorption performance, resistance to draw, hardness and the like.

In order to achieve the purpose, the invention adopts the following technical scheme: the aroma-carrying non-woven fabric of the cigarette filter stick comprises a non-woven fabric base material and an aroma-giving substance applied to the non-woven fabric, and is characterized in that the aroma-giving substance comprises the following components in parts by weight, namely a colloid mixture and a essence mixture; wherein the colloid mixture comprises 1-5 parts of glycerin monostearate, 0.8-4 parts of palmitic acid, 0.5-3 parts of beta-cyclodextrin, 0.3-1 part of lauric acid and 1-7 parts of polyethylene glycol; the essence mixture comprises essence base and propylene glycol, wherein the essence base: propylene glycol =3-20: 2-10; the essence base is natural essence or synthetic essence.

The essence base comprises mint essence, citrus natural essential oil essence, blueberry essence, litsea cubeba oil essence, hawthorn extract essence, tamarind extract essence, momordica grosvenori extract essence, fig extract essence, cedar wood oil essence and sandalwood oil essence.

Preferably, the flavor mixture comprises mint flavors and propylene glycol; wherein the essence base is mint essence, and specifically comprises 2-8 parts of dementholized peppermint oil, 0.3-2 parts of menthyl acetate, 0.1-2 parts of menthyl lactate and 1-7 parts of menthol; the using amount of the propylene glycol is 2-6.5 parts.

Preferably, the non-woven fabric is a polypropylene fiber non-woven fabric or a natural plant fiber non-woven fabric.

The aroma-carrying non-woven fabric is obtained by combining the aroma-providing substance with the non-woven fabric, when the aroma-carrying non-woven fabric is used for preparing the filter stick material for cigarettes, different treatments are required to be carried out according to the specific requirements of the filter stick and the type of the non-woven fabric, and the specific steps are different.

The preparation method comprises the following steps of:

preparation of fragrant substances

Firstly, according to the proportion of 1-5 parts of stearic acid (glyceryl monostearate), 0.8-4 parts of palmitic acid, 0.5-3 parts of beta-cyclodextrin, 0.3-1 part of lauric acid and 1-7 parts of polyethylene glycol, carrying out hot melting at 65-150 ℃, and uniformly stirring to obtain a colloid;

② according to the weight portion, the essence base: mixing propylene glycol =3-20:2-10 to prepare essence;

thirdly, mixing the colloid obtained in the step one and the essence obtained in the step two by 2-7 parts: 3-8 parts of the components are uniformly mixed to obtain a gel-like flavoring substance for later use;

secondly, pretreatment of non-woven fabrics

Firstly, crushing the active carbon by using a high-speed crusher until the particle size is 200-300 meshes;

drying the activated carbon powder;

thirdly, placing the polypropylene fiber non-woven fabric in a closed space, and uniformly charging the non-woven fabric after passing through an electrified rubber roller by running the non-woven fabric through the electrified rubber roller; simultaneously, the prepared activated carbon powder is loaded into a spray gun, and the spray gun is opposite to two sides of the non-woven fabric passing through the charged rubber rod;

starting a spraying system, spraying the activated carbon powder on the surface of the non-woven fabric, wherein the spraying amount is 50-200 g/min, the rolling speed of the non-woven fabric is 0.2-0.5m/s, and the activated carbon powder is attached to the non-woven fabric under the action of electrostatic force;

fifthly, blowing the non-woven fabric which is rolled after spraying with gas, blowing off the activated carbon powder which is not firmly adsorbed, and then conveying the non-woven fabric to a dip-coating process;

dip-coating of perfuming substance

Heating the gel-like aromatizing substance in water bath to be in a liquid state, wherein the water bath temperature is 80-150 ℃, and then coating the gel-like aromatizing substance on the pretreated non-woven fabric by adopting a dip coating mode.

The preparation method II comprises the following specific steps of:

preparation of fragrant substances

Firstly, according to the proportion of 1-5 parts of stearic acid, 0.8-4 parts of palmitic acid, 0.5-3 parts of beta-cyclodextrin and 1-7 parts of polyethylene glycol, carrying out hot melting at 65-150 ℃, and uniformly stirring to obtain a colloid;

② according to the weight portion, the essence base: mixing propylene glycol =3-20:2-10 to prepare essence;

thirdly, mixing the colloid obtained in the step one and the essence obtained in the step two by 2-7 parts: 3-8 parts of the components are uniformly mixed to obtain a gel-like flavoring substance for later use;

secondly, pretreatment of non-woven fabrics

Applying adhesive on the non-woven fabric, drying at 50-60 ℃, and sending to a dip-coating procedure of the aromatizing substance; the adhesive is formed by mixing ethylene-vinyl acetate copolymer, resin, glycerol triacetate and ethanol;

dip-coating of perfuming substance

Heating the gel-like aromatizing substance in water bath to be in a liquid state, wherein the water bath temperature is 80-150 ℃, and then coating the gel-like aromatizing substance on the pretreated non-woven fabric by adopting a dip coating mode.

The preparation method comprises the following steps of:

preparation of fragrant substances

Firstly, according to the proportion of 1-5 parts of stearic acid, 0.8-4 parts of palmitic acid, 0.5-3 parts of beta-cyclodextrin and 1-7 parts of polyethylene glycol, carrying out hot melting at 65-150 ℃, and uniformly stirring to obtain a colloid;

② according to the weight portion, the essence base: mixing propylene glycol =3-20:2-10 to prepare essence;

thirdly, mixing the colloid obtained in the step one and the essence obtained in the step two by 2-7 parts: 3-8 parts of the components are uniformly mixed to obtain a gel-like flavoring substance for later use;

secondly, pretreatment of non-woven fabrics

Firstly, mixing air with a certain pressure and a curing agent by using a spraying device to generate completely atomized uniform small particles, spraying the particles on the surface of a non-woven fabric, and then embossing and curing the non-woven fabric by using a heating embossing roller;

secondly, drying the embossed and cured non-woven fabric by hot air, and then conveying the non-woven fabric to a dip-coating process;

dip-coating of perfuming substance

Heating the gel-like aromatizing substance in water bath to be in a liquid state, wherein the water bath temperature is 80-150 ℃, and then coating the gel-like aromatizing substance on the pretreated non-woven fabric by adopting a dip coating mode.

Preferably, the curing agent is modified starch.

The principle and the beneficial effects of the invention are as follows:

after the non-woven fabric is prepared into the filter stick, the fragrance locking effect is good, and the gel-like fragrance-imparting substance is organically combined with the non-woven fabric, so that the linear gel-like fragrance-imparting substance applied to the filter stick can be slowed down to be rapidly volatilized during suction, the defect of large taste difference before and after suction is avoided, and the whole cigarette has relatively balanced taste; the fragrant substance of the invention can be flexibly prepared and has different style characteristics, the fragrance amount can be adjusted, and the raw material source is rich; in addition, the invention carries out targeted pretreatment aiming at different defects of different types of non-woven fabrics in the preparation of filter sticks, so that the non-woven fabrics have excellent aroma-carrying performance and can also meet various parameter indexes of the filter sticks. The polypropylene fiber non-woven fabric has limited adsorption capacity, and the performance of the filter stick is influenced, and the surface of the filter stick is sprayed with activated carbon particles or a special adhesive is applied, so that the filter stick has more complicated filtering channels and adsorption capacity, and the purposes of reducing tar and reducing harm are achieved; the natural plant fiber non-woven fabric has polar groups, has a selective adsorption function, is soft in texture and poor in pressure resistance, and has hardness and stiffness which do not meet the standard.

Detailed Description