CN116172792A - A technology for adding essential oil popping beads to sanitary napkins - Google Patents

Abstract

The invention relates to the field of sanitary towel production, in particular to a sanitary towel essential oil burst bead adding process which can add essential oil burst beads to a sanitary towel, has processing cost and is convenient for product use, and the process comprises the following steps: 1) Preparing a liquid impermeable back sheet; 2) Preparing an absorption core layer: a. unreeling and conveying the non-woven fabric to a forming die wheel to form a continuously conveyed block structure; b. pressing the storage tanks at intervals along the transverse middle part of the product in the step a through a first convex roller assembly; c. the essential oil explosion beads are added into the storage tank through an essential oil explosion bead adding device; 3) Preparing a liquid-permeable surface layer: d. unreeling and conveying the hydrophilic non-woven fabric, and compounding a diversion layer; e. pressing a first groove along the transverse middle part of the product in the step d through a second cam assembly, wherein the depth dimension of the first groove is smaller than that of the storage groove; 4) And sequentially compounding the liquid-impermeable bottom layer, the absorption core layer and the liquid-permeable surface layer, wherein a first groove on the liquid-permeable surface layer is embedded in the storage tank.

Description

A technology for adding essential oil popping beads to sanitary napkins

technical field

The invention relates to the field of sanitary napkin production, in particular to a technique for adding essential oil popping beads to sanitary napkins.

Background technique

At present, the sanitary napkin market is basically saturated. With the upgrading of consumption, the main driving force of sanitary napkin products in the future is the high-end, differentiated and personalized products. At present, plant essential oils have remarkable effects in anti-anxiety, anti-depression, and women's PMS symptom relief. Plant essential oils have a large market for relieving women's negative emotions during menstruation, and there are many applications on the market, that is, plant essential oils are used in the hygienic preparation process. The essential oil is sprayed on the liquid-permeable surface layer or the absorbent core layer of the sanitary napkin, but the plant essential oil is volatile, so that a large amount of loss will occur no matter in the packaging or in the process of use, and the use effect is not ideal, and the plant essential oil is sprayed with Sanitary napkins with essential oils need to be packaged in a single piece to maximize the use effect, resulting in an increase in processing costs; therefore, the combination of pop-bead technology and essential oils and applied to sanitary napkins is an innovation and can be created for our products The natural high-end and differentiated image provides a new way of thinking. At present, the relevant technology of applying essential oil beads to sanitary napkins is not yet mature, so our company must carry out research and development of this technology as soon as possible and realize its mass production application in sanitary napkins.

Contents of the invention

Therefore, in view of the above-mentioned problems, the present invention provides a sanitary napkin essential oil popping beads adding process that can add essential oil popping beads to sanitary napkins with low processing cost and convenient product use.

To achieve the above object, the present invention adopts the following technical solutions:

A sanitary napkin essential oil popping beads adding process, comprising the following steps:

1) Prepare a liquid-impermeable bottom layer;

2) Preparation of absorbent core layer:

a. Unwind and transport the roll-shaped non-woven fabric, define the longitudinal direction extending along the conveying direction of the non-woven fabric, and extend along its width direction as the transverse direction, and transport the non-woven fabric to the forming die wheel, polymer water-absorbing resin material It is mixed with pulp fiber and laid in the horizontal middle of the non-woven fabric, and wrapped by bending and wrapping on both lateral sides of the non-woven fabric to form a continuous conveying block structure;

b. pressing the storage tank at intervals along the transverse middle of the product in step a by the first convex roller assembly;

c. Add essential oil popping beads to the storage tank through the essential oil popping beads adding device;

3) Preparation of liquid-permeable surface layer:

d. Unwind and transport the roll-shaped hydrophilic non-woven fabric, and compound the diversion layer;

e, pressing the first groove along the lateral middle of the product in step d by the second cam assembly, the depth dimension of the first groove being smaller than the depth dimension of the storage tank;

4) Composite the liquid-impermeable bottom layer, the absorbent core layer and the liquid-permeable surface layer sequentially, and the first groove on the liquid-permeable surface layer is embedded in the storage tank;

5) Cutting the product in step 4 to form a sanitary napkin body added with essential oil popping beads.

Further, the storage tank includes a first storage part, a second storage part, and a connecting part connecting the first storage part and the second storage part in a transverse interval, and the depth of the connecting part is less than The depth dimension of the first storage part and the second storage part.

Further, a second groove is pressed in the middle of the first groove.

Further, in the above step c, a polymer water-absorbing resin material is added in the storage tank, and the volume of the polymer water-absorbing resin material accounts for one-third of the volume of the storage tank.

Further, in the above step 4, when the liquid-permeable surface layer is combined with the absorbent core layer, when the first groove is embedded into the storage tank through the third cam assembly, the bottom of the second groove adheres to the connecting part , so that the first storage part is separated from the second storage part.

Further, the essential oil popping bead adding device includes a frame, an adding component arranged on the frame, an adsorption conveying component and a glue spraying component, the adding component is arranged at the output end of the glue spraying component, and the absorbing conveying component is set On the lower side of the adding component, and between the adsorption and conveying component, a channel for the material to pass is formed. The adding component includes a hopper, a transfer component and a driving device that drives the transfer component to work. The driving device drives the transfer component to move, so that the inside of the hopper The essential oil pop beads are transferred to each storage tank.

Further, the transfer assembly includes a rotating shaft, a connecting sleeve, a gas distribution plate and a transfer roller, the connecting sleeve is sleeved on the rotating shaft through a first bearing, one end of the connecting sleeve is fixed on the frame, and the hopper , The gas distribution plate is respectively arranged at the other end of the connection sleeve, the transfer roller is rotatably arranged on the rotating shaft through the second bearing, the outer surface of the transfer roller is provided with a transfer groove, and the transfer roller is provided with a matching The air cavity connected with the air plate and the transfer tank.

Further, a polymer hopper for discharging polymer water-absorbing resin material is provided on the peripheral side of the transfer roller.

By adopting the foregoing technical scheme, the beneficial effects of the present invention are: the sanitary napkin essential oil popping beads adding process, by improving the existing sanitary napkin production line to achieve the addition and fixing of essential oil popping beads, which is convenient for subsequent product use, and, the The preparation process is simple and the production line transformation cost is low, which is conducive to the quick production of the essential oil popping beads sanitary napkin.

Description of drawings

Fig. 1 is a top view structural schematic diagram of the essential oil pop-bead sanitary napkin in Example 1 of the present invention;

Fig. 2 is a schematic diagram of the front view of the essential oil popping beads adding device in Example 1 of the present invention;

3 is a schematic cross-sectional structural view of the transfer assembly in Embodiment 1 of the present invention;

Fig. 4 is a top view structural schematic diagram of the essential oil pop-bead sanitary napkin in Example 2 of the present invention;

Fig. 5 is a schematic cross-sectional structural view at A-A in Fig. 4;

6 is a schematic cross-sectional structural view of the transfer assembly in Embodiment 2 of the present invention;

Fig. 7 is a partial enlarged view of place B in Fig. 6;

Fig. 8 is a schematic diagram of the front view of the adsorption transport assembly in the second embodiment of the present invention;

Fig. 9 is a schematic diagram of the cooperative structure of the conveying belt and the transfer roller in the second embodiment of the present invention.

Detailed ways

The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

Embodiments of the invention are:

Embodiment one:

Shown in Fig. 1 with reference to, a kind of sanitary napkin essential oil quick-fried bead adding process comprises the following steps:

1) Prepare a liquid-impermeable bottom layer;

2) Preparation of absorbent core layer:

a. Unwind and transport the roll-shaped non-woven fabric, define the longitudinal direction extending along the conveying direction of the non-woven fabric, and extend along its width direction as the transverse direction, and transport the non-woven fabric to the forming die wheel, polymer water-absorbing resin material It is mixed with pulp fiber and laid in the horizontal middle of the non-woven fabric, and wrapped by bending and wrapping on both lateral sides of the non-woven fabric to form a continuous conveying block structure;

b. pressing the storage tank 2 at intervals along the transverse middle of the product in step a by the first convex roller assembly;

c. Add the essential oil popping beads 4 to the storage tank 2 through the essential oil popping beads adding device 3;

3) Preparation of liquid-permeable surface layer:

d. Unwind and transport the roll-shaped hydrophilic non-woven fabric, and compound the diversion layer;

e, pressing the first groove 5 along the transverse middle of the product in step d by the second cam assembly, the depth dimension of the first groove 5 being smaller than the depth dimension of the storage tank 2;

4) Composite the liquid-impermeable bottom layer, absorbent core layer and liquid-permeable surface layer sequentially, and the first groove 5 on the liquid-permeable surface layer is embedded in the storage tank 2;

5) Cutting the product in step 4 to form a sanitary napkin body 1 added with essential oil popping beads 4 .

Specifically, as shown in Fig. 2 and Fig. 3, the essential oil quick-fried bead adding device 3 includes a frame 31, an adding assembly 32 arranged on the frame 31, an adsorption conveying assembly 33 and a glue spraying assembly 34, and the adding assembly 32 is located at the output end of the glue spraying assembly 34, and the adsorption conveying assembly 33 is arranged on the lower side of the adding assembly 32, and forms a channel 35 for the material to pass between the absorbing conveying assembly 33, and the adding assembly 32 includes a hopper 321 , the transfer assembly and the driving device (not shown) that drives the transfer assembly to work, the transfer assembly is driven by the drive device to move, so that the essential oil popping beads 4 in the hopper 321 are transferred to each storage tank 2, and the transfer assembly includes The rotating shaft 322, the connecting sleeve 323, the gas distribution plate 324 and the transfer roller 325, the connecting sleeve 323 is sleeved on the rotating shaft 322 through the first bearing 326, and one end of the connecting sleeve 323 is fixed on the frame 31. The hopper 321 and the gas distribution plate 324 are respectively arranged on the other end of the connecting sleeve 323, the transfer roller 325 is rotatably arranged on the rotating shaft 322 through the second bearing 327, and the outer surface of the transfer roller 325 is provided with a transfer groove 328, The transfer roller 325 is provided with an air cavity 329 communicating with the air distribution plate 324 and the transfer groove 328 .

After the material is sprayed by the glue spray assembly 34, it cooperates with the transfer roller 325 through the gas distribution plate 324, so that a negative pressure is formed in the air cavity 329, and then the material is fed into the transfer tank 328 through the hopper 321 to absorb the essential oil popping beads 4, and pass through The driving device drives the rotating shaft 322 to rotate, thereby driving the transfer roller 325 to rotate, so that the transfer tank 328 rotates to the upper side of the material, and then the essential oil popping beads 4 in the transfer tank 328 enter into the storage tank 2, and are sprayed by glue. It is fixed to realize the addition of essential oil explosive beads 4. The structure is simple, occupies a small space, and operates stably. It can efficiently add essential oil explosive beads 4 and has high production efficiency.

Embodiment two:

Referring to Figure 4 and Figure 5, a sanitary napkin essential oil beads adding process, including the following steps:

1) preparing a liquid-impermeable bottom layer 11;

2) Prepare absorbent core layer 12:

a. Unwind and transport the roll-shaped non-woven fabric, define the longitudinal direction extending along the conveying direction of the non-woven fabric, and extend along its width direction as the transverse direction, and transport the non-woven fabric to the forming die wheel, polymer water-absorbing resin material It is mixed with pulp fiber and laid in the horizontal middle of the non-woven fabric, and wrapped by bending and wrapping on both lateral sides of the non-woven fabric to form a continuous conveying block structure;

b. Using the first convex roller assembly to press the storage tank 2 at intervals along the transverse middle of the product in step a, the storage tank 2 includes a first storage part 21, a second storage part 22 and a horizontal interval distribution. The connection part 23 connecting the first storage part 21 and the second storage part 22, the depth dimension of the connection part 23 is smaller than the depth dimension of the first storage part 21 and the second storage part 22;

c. The essential oil popping beads 4 are added to the storage tank 2 through the essential oil popping bead adding device 3, and a polymer water-absorbing resin material is also added in the storage tank 2, and the volume of the polymer water-absorbing resin material accounts for 2% of the storage material. One-third of the volume of tank 2;

3) Prepare the liquid-permeable surface layer 13:

d. Unwind and transport the roll-shaped hydrophilic non-woven fabric, and compound the diversion layer;

e. Press the first groove 5 along the lateral middle of the product in step d by the second cam assembly, the depth dimension of the first groove 5 is smaller than the depth dimension of the storage tank 2, and the depth dimension of the first groove 5 The middle part is pressed with a second groove 6;

4) Composite the liquid-impermeable bottom layer 11, the absorbent core layer 12 and the liquid-permeable surface layer 13 sequentially, and the first groove 5 on the liquid-permeable surface layer 13 is embedded in the storage tank 2. When the elastic surface layer 13 is combined with the absorbent core layer 12, when the first groove 5 is embedded into the storage tank 2 through the third cam assembly, the bottom of the second groove 6 adheres to the connecting part 23, so that the first storage tank The material part 21 is separated from the second material storage part 22;

5) Cutting the product in step 4 to form a sanitary napkin body added with essential oil popping beads.

The sanitary napkin essential oil popping beads addition process, by improving the existing sanitary napkin production line to achieve the addition and fixation of essential oil popping beads 4, is convenient for subsequent product use. In the storage tank 2 where the essential oil popping beads 4 are placed, the essential oil popping beads 4 are added to the storage tank 2 through the essential oil popping beads adding device 3, and then the polymer water-absorbing resin material is added to the storage tank 2, and then through the storage tank 2 The structural arrangement of the material tank 2, and the cooperation with the first groove 5 and the second groove 6 on the liquid-permeable surface layer 13, make the first groove 5 embedded in the material storage tank 2, the second groove 6 The bottom of the bottom is adhered to the connecting part 23, and then the first storage part 21 is separated from the second storage part 22, so that the essential oil popping beads 4 and the polymer water-absorbing resin material can be evenly distributed on the first storage part 21 and the second storage part. In the second storage part 22, the volume of the polymer water-absorbent resin material accounts for one-third of the volume of the storage tank 2, so that it is convenient to find the position of the essential oil popping beads during use, and at the same time, it is convenient to press the fingers to place them in the storage tank The essential oil explosive beads in 2 are crushed, so that the overflowing essential oil is absorbed by the polymer water-absorbing resin material, reducing the volatilization speed of the essential oil, and when absorbing excretions such as menstrual blood, a larger buffer space is increased. Further, due to the second concave The bottom of the groove 6 adheres to the connection part 23. When the expansion coefficient of the polymer water-absorbent resin material increases, the connection area is stretched and separated to form a secondary expansion space, thereby increasing the absorption speed, so that more excretion and essential oil contact, so as to exert a greater effect, the preparation process is simple, and the cost of production line transformation is low, which is conducive to the rapid production of the essential oil pop-bead sanitary napkin.

And, referring to Fig. 6 and Fig. 7, two adsorption holes 330 are provided between the transfer tank 328 and the air cavity 329 to stabilize the adsorption process, and the bottom of the transfer tank 328 is provided with a filter screen 7, so that The surrounding side of the transfer roller 325 is provided with a polymer hopper 8 for cutting the polymer water-absorbing resin material, so as to prevent the transfer groove 328 from clogging the adsorption hole 330 when it absorbs the essential oil beads 4, so that the transfer groove 328 passes through the polymer water-absorbing resin material. The polymer water-absorbent resin material is simultaneously adsorbed in the hopper 8 to realize simultaneous adsorption and transfer, improve processing efficiency, avoid secondary positioning of polymer water-absorbent resin material filling, and reduce equipment investment costs.

In this embodiment, the gas distribution panel 324 includes a disc body, a mounting seat 52 provided in the disc body 51, and an air distribution cavity tightly connected to the mounting seat 52, and the gas distribution cavity includes negative pressure chambers independently provided 53 and a positive pressure chamber 54, the positive pressure chamber 54 is distributed on the lowermost end of the disc body 51, the negative pressure chamber 53 is connected with an adsorption tube 55, and the positive pressure chamber 54 is connected with an air blowing pipe 56, when the transfer roller 325 When the transfer tank 328 on the upper side is on the upper side to absorb essential oil popping beads 4 and polymer water-absorbing resin materials, its air cavity 329 communicates with the negative pressure cavity 53. 329 communicates with the positive pressure chamber 54, so that blowing air blows the essential oil beads and polymer water-absorbing resin material in the transfer tank 328 into the storage tank 2 to improve transfer efficiency and prevent the essential oil beads 4, polymer water-absorbing resin Material retention or blockage problems, improve product quality, and at the same time ensure the stability and reliability of equipment operation.

At the same time, referring to Fig. 8 and Fig. 9, the adsorption conveying assembly 33 includes a driving roller 41, a driven roller 42, a conveying belt 43 wound on the driving roller 41 and the driven roller 42, the lower part of the conveying belt 43 is Side is provided with negative pressure box 44, and described conveyer belt 43 is provided with the through hole that is communicated with negative pressure box 44 (not shown in the figure, it is prior art, does not repeat too much here), described negative pressure box The lateral sides of 44 are provided with push rods 45, and the upper end of said push rods 45 is provided with jacking block 46, and said jacking block 46 leans against the lower surface of conveyor belt 43, and the lateral both sides of conveyor belt 43 are jacked up, The lateral middle part of the conveying belt 43 is lower than the lateral sides. When the transfer roller 325 cooperates, the material is conveyed through the channel 35, and the lateral sides of the material are fixedly transported by the pressing of the transfer roller 325 and the negative pressure adsorption of the negative pressure box 44. Avoid relative sliding, and because the thickness of the material is large, it is difficult to remove the gas during the blowing process of the transfer groove 328, and the transverse middle part of the conveyor belt 43 is lower than the transverse sides, and the transverse middle part of the material is controlled by the negative pressure box 44 Adsorption is attached to the conveyor belt 43, so that a gap is formed with the surface of the transfer roller 325, which facilitates the discharge of gas, and prevents the blowing out of the essential oil beads 4 and the polymer water-absorbing resin material, so as to realize stable material addition.

Although the present invention has been particularly shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined by the appended claims. Making various changes is within the protection scope of the present invention.

Claims (8)

1. A process for adding essential oil explosion beads of a sanitary towel is characterized in that: the method comprises the following steps:

1) Preparing a liquid impermeable back sheet;

2) Preparing an absorption core layer:

a. unreeling and conveying the non-woven fabric in a roll shape, wherein the non-woven fabric is defined to extend along the conveying direction of the non-woven fabric to be a longitudinal direction, and extends along the width direction of the non-woven fabric to be a transverse direction, the non-woven fabric is conveyed to a forming die wheel, and the high polymer water-absorbent resin material and the pulp fibers are mixed and paved in the transverse middle of the non-woven fabric and are folded and wrapped through the transverse two sides of the non-woven fabric to form a continuously conveyed block structure;

b. pressing the storage tanks at intervals along the transverse middle part of the product in the step a through a first convex roller assembly;

c. the essential oil explosion beads are added into the storage tank through an essential oil explosion bead adding device;

3) Preparing a liquid-permeable surface layer:

d. unreeling and conveying the hydrophilic non-woven fabric in a roll shape, and compounding a diversion layer;

e. pressing a first groove along the transverse middle part of the product in the step d through a second cam assembly, wherein the depth dimension of the first groove is smaller than that of the storage groove;

4) Sequentially compounding the liquid-impermeable bottom layer, the absorption core layer and the liquid-permeable surface layer, wherein a first groove on the liquid-permeable surface layer is embedded in the storage tank;

5) And (3) slitting the product obtained in the step (4) to form the sanitary towel body added with the essential oil bursting beads.

2. The sanitary towel essential oil burst adding process according to claim 1, wherein: the storage tank is including being horizontal interval distribution's first storage portion, second storage portion and connecting portion of connecting first storage portion and second storage portion, the degree of depth size of connecting portion is less than the degree of depth size of first storage portion, second storage portion.

3. The sanitary towel essential oil burst adding process according to claim 2, wherein: the middle part of first recess suppresses has the second recess.

4. A sanitary towel essential oil burst adding process according to claim 3, characterized in that: in the step c, a high molecular water-absorbing resin material is also added into the storage tank, and the volume of the high molecular water-absorbing resin material accounts for one third of the volume of the storage tank.

5. The sanitary towel essential oil burst adding process according to claim 4, wherein: in the step 4, when the liquid-permeable surface layer and the absorbent core layer are compounded, the first groove is embedded into the storage groove through the third cam assembly, the bottom of the second groove is adhered to the connecting portion, and the first storage portion is separated from the second storage portion.

6. The sanitary towel essential oil burst adding process according to any one of claims 1 to 5, wherein: the essential oil explosive bead adding device comprises a frame, an adding component, an adsorption conveying component and a glue spraying component, wherein the adding component is arranged on the frame, the output end of the glue spraying component is arranged on the adding component, the adsorption conveying component is arranged on the lower side of the adding component, a channel for materials to pass through is formed between the adsorption conveying component and the adsorption conveying component, the adding component comprises a hopper, a transferring component and a driving device for driving the transferring component to work, and the transferring component is driven to move through the driving device, so that essential oil explosive beads in the hopper are transferred to each storage tank.

7. The sanitary towel essential oil burst adding process according to claim 6, wherein: the transfer assembly comprises a rotating shaft, a connecting sleeve, an air distribution disc and a transfer roller, wherein the connecting sleeve is sleeved on the rotating shaft through a first bearing, one end of the connecting sleeve is fixedly arranged on the frame, the hopper and the air distribution disc are respectively arranged at the other end of the connecting sleeve, the transfer roller is rotatably arranged on the rotating shaft through a second bearing, a transfer groove is formed in the outer surface of the transfer roller, and an air cavity communicated with the air distribution disc and the transfer groove is formed in the transfer roller.

8. The sanitary towel essential oil burst adding process according to claim 7, wherein: and a macromolecule hopper for discharging macromolecule water-absorbent resin materials is arranged on the periphery of the transfer roller.

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